350-601 Network — All Questions With Answers

An engineer is configuring a pair of Nexus 9000 switches as vPC peers. The vPC peer keepalive link is established. Which statement about the vPC peer keepalive is true?

Question 2easymultiple choice

In a VXLAN overlay network, which component is responsible for encapsulating and decapsulating packets and resides at the edge of the underlay network?

Question 3hardmultiple choice

An engineer is designing a spine-leaf fabric using eBGP for the underlay. The spine switches are in AS 65000 and each leaf switch uses a different private AS from 65001 to 65010. For optimal convergence and to avoid BGP path hunting, which BGP feature should be configured on the spines?

Question 4mediummultiple choice

In Cisco ACI, which component is responsible for translating EPG communication policies into concrete configuration on leaf switches?

Question 5mediummultiple choice

A data center network uses MST with multiple instances. Different VLANs are mapped to different MST instances to utilize multiple spanning tree paths. Which MST parameter must be identical on all switches in the same region to ensure proper operation?

Question 6easymultiple choice

Which NX-OS command displays the vPC consistency parameters and status on a Cisco Nexus switch?

Question 7hardmultiple choice

In a VXLAN EVPN fabric, BUM traffic can be handled by ingress replication or multicast. Which statement about ingress replication is accurate?

Question 8mediummultiple choice

An engineer is configuring OSPF in a data center fabric with multiple Nexus 9000 switches. To ensure fast convergence after a link failure, which OSPF feature should be enabled?

Question 9mediummultiple choice

In a spine-leaf architecture with 40 leaf switches and 4 spine switches, each leaf has four 40G uplinks to the spines. What is the oversubscription ratio if each leaf has 48 ports of 10G for servers?

Question 10easymultiple choice

Which Cisco Data Center Network Manager component is used for centralized fabric management and automation of Nexus switches?

Question 11hardmultiple choice

In an ACI fabric, an EPG is configured with a contract that provides a service to another EPG. The contract has a filter for TCP port 80. Which component defines the directionality of the communication between the provider and consumer EPG?

Question 12mediummultiple choice

An engineer needs to extend a Layer 2 VLAN across a VXLAN EVPN fabric. Which construct maps the VLAN to the overlay network?

Question 13mediummulti select

An engineer is designing a VXLAN EVPN fabric with multicast-based BUM replication. Which two components are required to support this? (Choose two.)

Question 14hardmulti select

Which three checks are part of the vPC type-1 consistency check? (Choose three.)

Question 15easymulti select

An engineer is deploying a new application in an ACI fabric. Which two objects must be created to define a network policy? (Choose two.)

Question 16mediummultiple choice

An engineer is deploying a VXLAN overlay network in a data center using Cisco Nexus 9000 series switches. The network must handle BUM traffic efficiently across the fabric. Which method for BUM traffic handling requires the VTEP to maintain a list of all remote VTEPs and replicate packets individually?

Question 17easymultiple choice

In a Cisco ACI fabric, which component is responsible for policy enforcement and management of the entire infrastructure?

Question 18hardmultiple choice

A data center engineer is configuring vPC on a pair of Cisco Nexus switches. The vPC peer-link is established but the vPC member ports remain suspended. After checking the configuration, the engineer notices that the vPC peer-keepalive link is not functioning. What is the most likely cause of the suspended member ports?

Question 19mediummultiple choice

In a spine-leaf architecture using eBGP as the routing protocol, what is the primary purpose of using eBGP rather than iBGP between spine and leaf switches?

Question 20mediummultiple choice

An engineer is configuring MST on a pair of Cisco Nexus switches that will be part of a vPC domain. The vPC peer-link will carry multiple MST instances. Which MST parameter must be identical on both vPC peers to ensure proper operation?

Question 21easymultiple choice

Which VXLAN component is responsible for encapsulating and decapsulating Ethernet frames into UDP packets?

Question 22mediummultiple choice

In a Cisco ACI fabric, a tenant has multiple bridge domains with different subnets. The administrator wants to allow traffic between two EPGs in the same tenant but different bridge domains. Which ACI construct is required to enable communication?

Question 23hardmultiple choice

A data center architect is designing a spine-leaf network with 40 leaf switches and 8 spine switches. Each leaf has 40x25G downlinks to servers and 8x100G uplinks to spines. The oversubscription ratio from server to spine is calculated as (total downlink bandwidth) / (total uplink bandwidth). What is the oversubscription ratio for each leaf?

Question 24easymultiple choice

Which Cisco NX-OS feature allows automation and programmatic access to device configuration and monitoring using REST APIs?

Question 25mediummultiple choice

An engineer is configuring OSPF on a Cisco Nexus switch in a data center. The network consists of multiple point-to-point links. To improve convergence, the engineer wants to reduce the dead interval to 10 seconds. Which command sets the dead interval correctly?

Question 26hardmultiple choice

In a VXLAN EVPN fabric, a new server is connected to a leaf switch and requires Layer 2 connectivity to an existing VM on a different leaf. The engineer notes that the VTEP on the new leaf does not have a Type-2 route for the VM's MAC address. Which EVPN route type is used to advertise MAC addresses?

Question 27mediummultiple choice

A network administrator is troubleshooting a vPC pair and needs to verify the operational status of the vPC peer-link. Which NX-OS command displays vPC status including peer-link and member port states?

Question 28easymultiple choice

In a Cisco ACI fabric, which component is responsible for managing the policy repository, fault monitoring, and API endpoints?

Question 29easymultiple choice

Which VLAN trunking protocol is used by default on Cisco Nexus switches to carry multiple VLANs over a single link?

Question 30mediummultiple choice

An engineer is implementing VXLAN in a data center. The network must handle BUM traffic without relying on IP multicast in the underlay. Which BUM handling method should be chosen?

Question 31mediummultiple choice

In a spine-leaf architecture, the oversubscription ratio between leaf switches and spine switches is 3:1. Each leaf has 48 x 10G server ports and 4 x 40G uplinks to the spine. What is the oversubscription ratio at the leaf level?

Question 32mediummultiple choice

Which NX-OS command is used to display the consistency status of Virtual Port Channel (vPC) parameters across both vPC peers?

Question 33mediummultiple choice

A network engineer is configuring OSPF on a Nexus switch. To ensure fast convergence in case of a link failure, which OSPF feature should be enabled?

Question 34mediummultiple choice

In a VXLAN EVPN fabric, which component is responsible for encapsulating and decapsulating VXLAN packets?

Question 35hardmultiple choice

An engineer is configuring BGP EVPN for VXLAN in a spine-leaf fabric. The leaf switches must advertise host IP-to-MAC mappings to the control plane. Which BGP address family should be enabled on the leaf switches?

Question 36hardmultiple choice

An ACI fabric has multiple tenants and the requirement to allow only HTTP traffic from the web EPG to the app EPG. The contract must restrict traffic to TCP port 80. Which ACI object defines that specific port?

Question 37mediummultiple choice

What is the purpose of the vPC peer keepalive link in a vPC domain?

Question 38easymultiple choice

Which STP variant provides per-VLAN load balancing and is commonly used in data center networks with Cisco Nexus switches?

Question 39hardmultiple choice

A data center architect is designing an ACI fabric with VMM integration to VMware vSphere. The goal is to allow dynamic policy assignment to virtual machines. What is the correct configuration hierarchy to enable this?

Question 40mediummultiple choice

Which command is used on a Cisco Nexus switch to display the VXLAN network identifier (VNI) associated with a specific VLAN?

Question 41hardmultiple choice

An engineer is troubleshooting a BGP EVPN issue where leaf switches are not learning remote MAC addresses. The underlay is reachable and BGP sessions are established. What is a likely cause?

Question 42mediummultiple choice

Which ECMP load-balancing method is recommended for data center spine-leaf fabrics to ensure optimal traffic distribution?

Question 43mediummulti select

An engineer is deploying a new VXLAN fabric and must ensure that the control plane can handle MAC advertisement without flooding. Which TWO protocols can be used for control plane learning in VXLAN? (Select two.)

Question 44mediummulti select

An ACI administrator is configuring external connectivity using L3Out. Which THREE components must be defined for a successful L3Out deployment? (Select three.)

Question 45hardmulti select

A network team is troubleshooting a vPC issue where one of the member ports is not coming up. Which TWO conditions can cause a vPC member port to fail consistency checks? (Select two.)

Question 46easymultiple choice

In a Cisco NX-OS environment, which command is used to verify the operational state of a virtual Port Channel (vPC) peer link?

Question 47mediummultiple choice

In a VXLAN overlay network, what is the primary purpose of ingress replication for BUM traffic?

Question 48mediummultiple choice

In a Cisco ACI fabric, which object represents a collection of endpoints that share the same forwarding behavior and security policies?

Question 49hardmultiple choice

A network engineer is designing a spine-leaf fabric with oversubscription ratio of 3:1. Each leaf switch uses 40 Gbps uplinks to the spine and has 48 x 10 Gbps server ports. How many spine links are needed per leaf to achieve the target oversubscription?

Question 50mediummultiple choice

Which statement about RSTP (802.1w) is true?

Question 51easymultiple choice

In a VXLAN environment, what is the function of a VTEP?

Question 52hardmultiple choice

In Cisco ACI, when integrating with VMware vSphere via VMM domain, what is the purpose of the 'vCenter Domain' policy?

Question 53easymultiple choice

Which BGP variant is commonly used in data center EVPN fabrics to carry Layer 2 and Layer 3 network information?

Question 54mediummultiple choice

In a vPC setup, what is the purpose of the vPC peer-keepalive link?

Question 55hardmultiple choice

A network administrator is configuring a Cisco Nexus switch to use NX-API for automation. Which statement about NX-API is true?

Question 56mediummultiple choice

In a spine-leaf architecture, what is the primary advantage of using a full mesh between spines and leaves?

Question 57mediummultiple choice

Which Cisco DCNM feature allows centralized management and monitoring of multiple NX-OS fabrics?

Question 58mediummulti select

A network engineer is planning a VXLAN EVPN fabric. Which two statements about VXLAN Network Identifiers (VNIs) are correct? (Choose two.)

Question 59mediummulti select

In Cisco ACI, when creating a contract, which three components are part of the contract definition? (Choose three.)

Question 60hardmulti select

In a vPC environment, which two conditions must be identical on both vPC peer switches to ensure proper consistency? (Choose two.)

Question 61easymultiple choice

In a Cisco ACI fabric, which component acts as the centralized policy and management controller?

Question 62mediummultiple choice

An engineer is configuring OSPF on a Nexus 9000 switch in a data center spine-leaf topology. Which OSPF network type is most appropriate on the point-to-point links between leaf and spine switches to ensure fast convergence?

Question 63hardmultiple choice

In a VXLAN EVPN fabric using BGP as the control plane, which BGP address family is used to exchange MAC/VTEP reachability information between VTEPs?

Question 64mediummultiple choice

A data center architect is designing a spine-leaf network with 40 leaf switches and 4 spine switches. Each leaf has 48 x 25G server-facing ports and 8 x 100G uplinks to the spines. What is the oversubscription ratio from server to spine?

Question 65easymultiple choice

Which NX-OS command displays the current VLAN configuration on a Nexus switch?

Question 66hardmultiple choice

In a Cisco ACI fabric, an external L3Out is configured to advertise a subnet to the outside. Which object must be created in the tenant to define the Layer 3 outside network connection?

Question 67mediummultiple choice

An engineer notices that a vPC peer link is flapping. Which vPC component must be operational for the vPC to function correctly?

Question 68easymultiple choice

Which VLAN range is reserved by default on Cisco Nexus switches?

Question 69mediummultiple choice

In a VXLAN overlay, which encapsulation is used to transport Ethernet frames over the IP network?

Question 70hardmultiple choice

A network engineer is configuring an ACI contract between an EPG and an external EPG. Which construct is used to permit traffic from the external EPG to the internal EPG?

Question 71mediummultiple choice

Which feature in NX-OS allows for direct API calls to the switch for automation purposes?

Question 72easymultiple choice

In a spine-leaf architecture, what is the primary advantage of having multiple spine switches?

Question 73mediummulti select

Which two statements correctly describe VXLAN BUM traffic handling? (Choose two.)

Question 74hardmulti select

Which three components are part of the Cisco ACI policy model for defining a tenant's network? (Choose three.)

Question 75mediummulti select

Which two BGP features are commonly used in a Cisco Data Center spine-leaf fabric to achieve optimal ECMP load balancing? (Choose two.)

Question 76easymultiple choice

In a spine-leaf data center architecture, what is the primary purpose of using equal-cost multipath (ECMP) routing?

Question 77mediummultiple choice

An engineer is configuring vPC on a pair of Nexus switches. Which statement correctly describes the vPC peer-keepalive link?

Question 78mediummultiple choice

In VXLAN overlay networks, which mechanism is used to forward broadcast, unknown unicast, and multicast (BUM) traffic when multicast is not enabled in the underlay?

Question 79hardmultiple choice

An engineer is designing an ACI fabric and needs to provide connectivity to an external Layer 3 network. Which construct must be configured to achieve this?

Question 80easymultiple choice

Which BGP variant is commonly used in spine-leaf fabrics to advertise EVPN routes for VXLAN?

Question 81mediummultiple choice

In a data center running MST, which region configuration parameter must match on all switches for them to be part of the same region?

Question 82hardmultiple choice

An engineer is troubleshooting a vPC consistency check failure. Which parameter must be identical on both vPC peer switches to avoid a consistency check violation for a vPC member port?

Question 83mediummultiple choice

In a VXLAN overlay, what is the role of the VXLAN Network Identifier (VNI)?

Question 84easymultiple choice

Which NX-OS command is used to display the current OSPF neighbor states?

Question 85mediummultiple choice

In ACI, a contract is defined between two EPGs. Which component specifies the type of traffic allowed?

Question 86hardmultiple choice

A data center designer is evaluating oversubscription ratios in a spine-leaf topology with 40 leaf switches and 4 spine switches. Each leaf has 4x100G uplinks to spines, and each spine has 40x100G downlinks. The leaf switches have 48x25G server ports. What is the oversubscription ratio from the server ports to the spine uplinks?

Question 87mediummultiple choice

An engineer needs to automate a repetitive configuration task on a Nexus switch. Which method is most suitable for programmatic access?

Question 88mediummulti select

A network engineer is configuring 802.1Q trunking between a Nexus switch and a server. Which TWO statements are true regarding 802.1Q trunking?

Question 89hardmulti select

In an ACI fabric, which THREE components are required to define a policy that allows communication between two EPGs?

Question 90mediummulti select

An engineer is implementing VXLAN with a centralized routing gateway. Which TWO statements are correct about BUM traffic handling?

Question 91easymultiple choice

Which protocol is used to carry VXLAN encapsulation and facilitates the exchange of MAC reachability information between VTEPs in a VXLAN EVPN fabric?

Question 92mediummultiple choice

An engineer configures vPC on a pair of Nexus switches. The vPC peer-keepalive link fails, but the vPC peer-link remains operational. What is the expected behavior?

Question 93hardmultiple choice

In a VXLAN BGP EVPN fabric, which component is responsible for handling BUM traffic using ingress replication, and how does the VTEP learn the list of remote VTEPs to replicate to?

Question 94easymultiple choice

In ACI, which object defines the logical separation of traffic within a tenant, analogous to a VLAN in traditional networking, and is associated with a VRF?

Question 95mediummultiple choice

A network engineer is designing a spine-leaf fabric with oversubscription ratio 3:1. Each leaf switch has 48x10G host-facing ports and 4x40G uplinks to spines. What is the oversubscription ratio per leaf?

Question 96mediummultiple choice

Which NX-OS feature ensures that vPC member ports on both peers are configured identically to prevent inconsistencies that could lead to traffic black-holing?

Question 97hardmultiple choice

In an ACI fabric, a contract between two EPGs uses a filter that permits TCP port 443. The provider EPG is configured with a VMM domain integration. Which statement about the contract's effect is true?

Question 98mediummultiple choice

An engineer needs to enable equal-cost multipath (ECMP) routing in a spine-leaf fabric using OSPF. Which OSPF feature allows load balancing across multiple equal-cost paths?

Question 99easymultiple choice

Read the full VRF explanation →

Which VXLAN component is responsible for encapsulating and decapsulating Ethernet frames into UDP packets for transport over the IP network?

Question 100mediummultiple choice

In the context of ACI L3Out, which object is used to advertise external networks into the ACI fabric and is associated with a VRF?

Question 101hardmultiple choice

A data center network uses MST to interoperate with a legacy switch that supports only RSTP. Which MST configuration parameter must match between the MST region and the legacy switch?

Question 102mediummultiple choice

An engineer is configuring a new VLAN on a Nexus switch that is part of a vPC pair. Which step is mandatory to ensure the VLAN is created on both vPC peers?

Question 103mediummulti select

Which TWO statements are true regarding VXLAN BUM traffic handling? (Choose two.)

Question 104hardmulti select

An engineer is deploying an ACI fabric with VMM integration for VMware vSphere. Which THREE components must be configured to enable dynamic EPG assignment based on VM attributes? (Choose three.)

Question 105easymulti select

Which TWO commands are used on NX-OS to verify vPC status and consistency? (Choose two.)

Question 106easymultiple choice

In a spine-leaf architecture using eBGP, which of the following is the recommended BGP configuration for the spine switches?

Question 107easymultiple choice

Which VPC component is used to send Layer 2 control plane traffic between peer switches?

Question 108mediummultiple choice

In VXLAN, which method of handling BUM traffic replicates packets to remote VTEPs only when there is a known receiver behind that VTEP?

Question 109mediummultiple choice

An engineer is configuring a VXLAN EVPN fabric. Which address family must be enabled under BGP to exchange MAC/VTEP reachability information?

Question 110mediummultiple choice

In ACI, which construct defines the set of endpoints that can communicate based on contracts?

Question 111mediummultiple choice

Which NX-OS command displays the VPC status, including peer-link and consistency parameters?

Question 112hardmultiple choice

In a VXLAN EVPN fabric with MP-BGP, which route type is used to advertise MAC addresses and associated VNI?

Question 113hardmultiple choice

Which of the following is a requirement for VPC peer keepalive to function correctly?

Question 114hardmultiple choice

In ACI, when integrating with VMware vSphere, which component is used to automatically push port group configurations to virtual switches?

Question 115mediummultiple choice

Which MST configuration parameter must match across all switches in the same MST region?

Question 116mediummultiple choice

In VXLAN, what is the role of the VNI in the overlay network?

Question 117easymultiple choice

Which command is used to verify the OSPF neighbor state in NX-OS?

Question 118mediummultiple choice

In ACI, what is the purpose of a contract?

Question 119hardmultiple choice

Which VXLAN EVPN route type is used for discovering VTEPs and building the BUM forwarding tree?

Question 120mediummultiple choice

What does the oversubscription ratio in a spine-leaf fabric represent?

Question 121mediummulti select

Which TWO statements are true about VPC consistency checks? (Choose two.)

Question 122hardmulti select

Which THREE are valid methods for handling BUM traffic in VXLAN? (Choose three.)

Question 123mediummulti select

Which TWO are benefits of using a spine-leaf architecture? (Choose two.)

Question 124mediummultiple choice

A data center spine-leaf architecture is designed to ensure low latency and high bandwidth. Which of the following best describes the role of the leaf switches in this topology?

Question 125mediummulti select

A network engineer is planning to implement VPC in a Cisco Nexus data center. Which two statements about VPC components are true? (Choose two.)

Question 126mediummulti select

Which three components are part of the VXLAN overlay architecture? (Choose three.)

Question 127easymulti select

A data center architect is designing a spine-leaf fabric with OSPF as the underlay routing protocol. Which two statements about OSPF in this design are correct? (Choose two.)

Question 128hardmulti select

In an ACI fabric, a tenant is configured with multiple bridge domains (BDs) and EPGs. Which three statements correctly describe the ACI model? (Choose three.)

Question 129easymulti select

Which two commands are used to verify Spanning Tree Protocol (STP) status on a Cisco Nexus switch? (Choose two.)

Question 130mediummulti select

An engineer is configuring MST (Multiple Spanning Tree) on a Nexus switch. Which three statements about MST are correct? (Choose three.)

Question 1mediummultiple choice

An engineer is configuring a pair of Nexus 9000 switches as vPC peers. The vPC peer keepalive link is established. Which statement about the vPC peer keepalive is true?

Question 2easymultiple choice

In a VXLAN overlay network, which component is responsible for encapsulating and decapsulating packets and resides at the edge of the underlay network?

Question 3hardmultiple choice

An engineer is designing a spine-leaf fabric using eBGP for the underlay. The spine switches are in AS 65000 and each leaf switch uses a different private AS from 65001 to 65010. For optimal convergence and to avoid BGP path hunting, which BGP feature should be configured on the spines?

Question 4mediummultiple choice

In Cisco ACI, which component is responsible for translating EPG communication policies into concrete configuration on leaf switches?

Question 5mediummultiple choice

A data center network uses MST with multiple instances. Different VLANs are mapped to different MST instances to utilize multiple spanning tree paths. Which MST parameter must be identical on all switches in the same region to ensure proper operation?

Question 6easymultiple choice

Which NX-OS command displays the vPC consistency parameters and status on a Cisco Nexus switch?

Question 7hardmultiple choice

In a VXLAN EVPN fabric, BUM traffic can be handled by ingress replication or multicast. Which statement about ingress replication is accurate?

Question 8mediummultiple choice

An engineer is configuring OSPF in a data center fabric with multiple Nexus 9000 switches. To ensure fast convergence after a link failure, which OSPF feature should be enabled?

Question 9mediummultiple choice

In a spine-leaf architecture with 40 leaf switches and 4 spine switches, each leaf has four 40G uplinks to the spines. What is the oversubscription ratio if each leaf has 48 ports of 10G for servers?

Question 10easymultiple choice

Which Cisco Data Center Network Manager component is used for centralized fabric management and automation of Nexus switches?

Question 11hardmultiple choice

In an ACI fabric, an EPG is configured with a contract that provides a service to another EPG. The contract has a filter for TCP port 80. Which component defines the directionality of the communication between the provider and consumer EPG?

Question 12mediummultiple choice

An engineer needs to extend a Layer 2 VLAN across a VXLAN EVPN fabric. Which construct maps the VLAN to the overlay network?

Question 13mediummulti select

An engineer is designing a VXLAN EVPN fabric with multicast-based BUM replication. Which two components are required to support this? (Choose two.)

Question 14hardmulti select

Which three checks are part of the vPC type-1 consistency check? (Choose three.)

Question 15easymulti select

An engineer is deploying a new application in an ACI fabric. Which two objects must be created to define a network policy? (Choose two.)

Question 16mediummultiple choice

An engineer is deploying a VXLAN overlay network in a data center using Cisco Nexus 9000 series switches. The network must handle BUM traffic efficiently across the fabric. Which method for BUM traffic handling requires the VTEP to maintain a list of all remote VTEPs and replicate packets individually?

Question 17easymultiple choice

In a Cisco ACI fabric, which component is responsible for policy enforcement and management of the entire infrastructure?

Question 18hardmultiple choice

A data center engineer is configuring vPC on a pair of Cisco Nexus switches. The vPC peer-link is established but the vPC member ports remain suspended. After checking the configuration, the engineer notices that the vPC peer-keepalive link is not functioning. What is the most likely cause of the suspended member ports?

Question 19mediummultiple choice

In a spine-leaf architecture using eBGP as the routing protocol, what is the primary purpose of using eBGP rather than iBGP between spine and leaf switches?

Question 20mediummultiple choice

An engineer is configuring MST on a pair of Cisco Nexus switches that will be part of a vPC domain. The vPC peer-link will carry multiple MST instances. Which MST parameter must be identical on both vPC peers to ensure proper operation?

Question 21easymultiple choice

Which VXLAN component is responsible for encapsulating and decapsulating Ethernet frames into UDP packets?

Question 22mediummultiple choice

In a Cisco ACI fabric, a tenant has multiple bridge domains with different subnets. The administrator wants to allow traffic between two EPGs in the same tenant but different bridge domains. Which ACI construct is required to enable communication?

Question 23hardmultiple choice

A data center architect is designing a spine-leaf network with 40 leaf switches and 8 spine switches. Each leaf has 40x25G downlinks to servers and 8x100G uplinks to spines. The oversubscription ratio from server to spine is calculated as (total downlink bandwidth) / (total uplink bandwidth). What is the oversubscription ratio for each leaf?

Question 24easymultiple choice

Which Cisco NX-OS feature allows automation and programmatic access to device configuration and monitoring using REST APIs?

Question 25mediummultiple choice

An engineer is configuring OSPF on a Cisco Nexus switch in a data center. The network consists of multiple point-to-point links. To improve convergence, the engineer wants to reduce the dead interval to 10 seconds. Which command sets the dead interval correctly?

Question 26hardmultiple choice

In a VXLAN EVPN fabric, a new server is connected to a leaf switch and requires Layer 2 connectivity to an existing VM on a different leaf. The engineer notes that the VTEP on the new leaf does not have a Type-2 route for the VM's MAC address. Which EVPN route type is used to advertise MAC addresses?

Question 27mediummultiple choice

A network administrator is troubleshooting a vPC pair and needs to verify the operational status of the vPC peer-link. Which NX-OS command displays vPC status including peer-link and member port states?

Question 28easymultiple choice

In a Cisco ACI fabric, which component is responsible for managing the policy repository, fault monitoring, and API endpoints?

Question 29easymultiple choice

Which VLAN trunking protocol is used by default on Cisco Nexus switches to carry multiple VLANs over a single link?

Question 30mediummultiple choice

An engineer is implementing VXLAN in a data center. The network must handle BUM traffic without relying on IP multicast in the underlay. Which BUM handling method should be chosen?

Question 31mediummultiple choice

In a spine-leaf architecture, the oversubscription ratio between leaf switches and spine switches is 3:1. Each leaf has 48 x 10G server ports and 4 x 40G uplinks to the spine. What is the oversubscription ratio at the leaf level?

Question 32mediummultiple choice

Which NX-OS command is used to display the consistency status of Virtual Port Channel (vPC) parameters across both vPC peers?

Question 33mediummultiple choice

A network engineer is configuring OSPF on a Nexus switch. To ensure fast convergence in case of a link failure, which OSPF feature should be enabled?

Question 34mediummultiple choice

In a VXLAN EVPN fabric, which component is responsible for encapsulating and decapsulating VXLAN packets?

Question 35hardmultiple choice

An engineer is configuring BGP EVPN for VXLAN in a spine-leaf fabric. The leaf switches must advertise host IP-to-MAC mappings to the control plane. Which BGP address family should be enabled on the leaf switches?

Question 36hardmultiple choice

An ACI fabric has multiple tenants and the requirement to allow only HTTP traffic from the web EPG to the app EPG. The contract must restrict traffic to TCP port 80. Which ACI object defines that specific port?

Question 37mediummultiple choice

What is the purpose of the vPC peer keepalive link in a vPC domain?

Question 38easymultiple choice

Which STP variant provides per-VLAN load balancing and is commonly used in data center networks with Cisco Nexus switches?

Question 39hardmultiple choice

A data center architect is designing an ACI fabric with VMM integration to VMware vSphere. The goal is to allow dynamic policy assignment to virtual machines. What is the correct configuration hierarchy to enable this?

Question 40mediummultiple choice

Which command is used on a Cisco Nexus switch to display the VXLAN network identifier (VNI) associated with a specific VLAN?

Question 41hardmultiple choice

An engineer is troubleshooting a BGP EVPN issue where leaf switches are not learning remote MAC addresses. The underlay is reachable and BGP sessions are established. What is a likely cause?

Question 42mediummultiple choice

Which ECMP load-balancing method is recommended for data center spine-leaf fabrics to ensure optimal traffic distribution?

Question 43mediummulti select

An engineer is deploying a new VXLAN fabric and must ensure that the control plane can handle MAC advertisement without flooding. Which TWO protocols can be used for control plane learning in VXLAN? (Select two.)

Question 44mediummulti select

An ACI administrator is configuring external connectivity using L3Out. Which THREE components must be defined for a successful L3Out deployment? (Select three.)

Question 45hardmulti select

A network team is troubleshooting a vPC issue where one of the member ports is not coming up. Which TWO conditions can cause a vPC member port to fail consistency checks? (Select two.)

Question 46easymultiple choice

In a Cisco NX-OS environment, which command is used to verify the operational state of a virtual Port Channel (vPC) peer link?

Question 47mediummultiple choice

In a VXLAN overlay network, what is the primary purpose of ingress replication for BUM traffic?

Question 48mediummultiple choice

In a Cisco ACI fabric, which object represents a collection of endpoints that share the same forwarding behavior and security policies?

Question 49hardmultiple choice

A network engineer is designing a spine-leaf fabric with oversubscription ratio of 3:1. Each leaf switch uses 40 Gbps uplinks to the spine and has 48 x 10 Gbps server ports. How many spine links are needed per leaf to achieve the target oversubscription?

Question 50mediummultiple choice

Which statement about RSTP (802.1w) is true?

Question 51easymultiple choice

In a VXLAN environment, what is the function of a VTEP?

Question 52hardmultiple choice

In Cisco ACI, when integrating with VMware vSphere via VMM domain, what is the purpose of the 'vCenter Domain' policy?

Question 53easymultiple choice

Which BGP variant is commonly used in data center EVPN fabrics to carry Layer 2 and Layer 3 network information?

Question 54mediummultiple choice

In a vPC setup, what is the purpose of the vPC peer-keepalive link?

Question 55hardmultiple choice

A network administrator is configuring a Cisco Nexus switch to use NX-API for automation. Which statement about NX-API is true?

Question 56mediummultiple choice

In a spine-leaf architecture, what is the primary advantage of using a full mesh between spines and leaves?

Question 57mediummultiple choice

Which Cisco DCNM feature allows centralized management and monitoring of multiple NX-OS fabrics?

Question 58mediummulti select

A network engineer is planning a VXLAN EVPN fabric. Which two statements about VXLAN Network Identifiers (VNIs) are correct? (Choose two.)

Question 59mediummulti select

In Cisco ACI, when creating a contract, which three components are part of the contract definition? (Choose three.)

Question 60hardmulti select

In a vPC environment, which two conditions must be identical on both vPC peer switches to ensure proper consistency? (Choose two.)

Question 61easymultiple choice

In a Cisco ACI fabric, which component acts as the centralized policy and management controller?

Question 62mediummultiple choice

An engineer is configuring OSPF on a Nexus 9000 switch in a data center spine-leaf topology. Which OSPF network type is most appropriate on the point-to-point links between leaf and spine switches to ensure fast convergence?

Question 63hardmultiple choice

In a VXLAN EVPN fabric using BGP as the control plane, which BGP address family is used to exchange MAC/VTEP reachability information between VTEPs?

Question 64mediummultiple choice

A data center architect is designing a spine-leaf network with 40 leaf switches and 4 spine switches. Each leaf has 48 x 25G server-facing ports and 8 x 100G uplinks to the spines. What is the oversubscription ratio from server to spine?

Question 65easymultiple choice

Which NX-OS command displays the current VLAN configuration on a Nexus switch?

Question 66hardmultiple choice

In a Cisco ACI fabric, an external L3Out is configured to advertise a subnet to the outside. Which object must be created in the tenant to define the Layer 3 outside network connection?

Question 67mediummultiple choice

An engineer notices that a vPC peer link is flapping. Which vPC component must be operational for the vPC to function correctly?

Question 68easymultiple choice

Which VLAN range is reserved by default on Cisco Nexus switches?

Question 69mediummultiple choice

In a VXLAN overlay, which encapsulation is used to transport Ethernet frames over the IP network?

Question 70hardmultiple choice

A network engineer is configuring an ACI contract between an EPG and an external EPG. Which construct is used to permit traffic from the external EPG to the internal EPG?

Question 71mediummultiple choice

Which feature in NX-OS allows for direct API calls to the switch for automation purposes?

Question 72easymultiple choice

In a spine-leaf architecture, what is the primary advantage of having multiple spine switches?

Question 73mediummulti select

Which two statements correctly describe VXLAN BUM traffic handling? (Choose two.)

Question 74hardmulti select

Which three components are part of the Cisco ACI policy model for defining a tenant's network? (Choose three.)

Question 75mediummulti select

Which two BGP features are commonly used in a Cisco Data Center spine-leaf fabric to achieve optimal ECMP load balancing? (Choose two.)

Question 76easymultiple choice

In a spine-leaf data center architecture, what is the primary purpose of using equal-cost multipath (ECMP) routing?

Question 77mediummultiple choice

An engineer is configuring vPC on a pair of Nexus switches. Which statement correctly describes the vPC peer-keepalive link?

Question 78mediummultiple choice

In VXLAN overlay networks, which mechanism is used to forward broadcast, unknown unicast, and multicast (BUM) traffic when multicast is not enabled in the underlay?

Question 79hardmultiple choice

An engineer is designing an ACI fabric and needs to provide connectivity to an external Layer 3 network. Which construct must be configured to achieve this?

Question 80easymultiple choice

Which BGP variant is commonly used in spine-leaf fabrics to advertise EVPN routes for VXLAN?

Question 81mediummultiple choice

In a data center running MST, which region configuration parameter must match on all switches for them to be part of the same region?

Question 82hardmultiple choice

An engineer is troubleshooting a vPC consistency check failure. Which parameter must be identical on both vPC peer switches to avoid a consistency check violation for a vPC member port?

Question 83mediummultiple choice

In a VXLAN overlay, what is the role of the VXLAN Network Identifier (VNI)?

Question 84easymultiple choice

Which NX-OS command is used to display the current OSPF neighbor states?

Question 85mediummultiple choice

In ACI, a contract is defined between two EPGs. Which component specifies the type of traffic allowed?

Question 86hardmultiple choice

A data center designer is evaluating oversubscription ratios in a spine-leaf topology with 40 leaf switches and 4 spine switches. Each leaf has 4x100G uplinks to spines, and each spine has 40x100G downlinks. The leaf switches have 48x25G server ports. What is the oversubscription ratio from the server ports to the spine uplinks?

Question 87mediummultiple choice

An engineer needs to automate a repetitive configuration task on a Nexus switch. Which method is most suitable for programmatic access?

Question 88mediummulti select

A network engineer is configuring 802.1Q trunking between a Nexus switch and a server. Which TWO statements are true regarding 802.1Q trunking?

Question 89hardmulti select

In an ACI fabric, which THREE components are required to define a policy that allows communication between two EPGs?

Question 90mediummulti select

An engineer is implementing VXLAN with a centralized routing gateway. Which TWO statements are correct about BUM traffic handling?

Question 91easymultiple choice

Which protocol is used to carry VXLAN encapsulation and facilitates the exchange of MAC reachability information between VTEPs in a VXLAN EVPN fabric?

Question 92mediummultiple choice

An engineer configures vPC on a pair of Nexus switches. The vPC peer-keepalive link fails, but the vPC peer-link remains operational. What is the expected behavior?

Question 93hardmultiple choice

In a VXLAN BGP EVPN fabric, which component is responsible for handling BUM traffic using ingress replication, and how does the VTEP learn the list of remote VTEPs to replicate to?

Question 94easymultiple choice

In ACI, which object defines the logical separation of traffic within a tenant, analogous to a VLAN in traditional networking, and is associated with a VRF?

Question 95mediummultiple choice

A network engineer is designing a spine-leaf fabric with oversubscription ratio 3:1. Each leaf switch has 48x10G host-facing ports and 4x40G uplinks to spines. What is the oversubscription ratio per leaf?

Question 96mediummultiple choice

Which NX-OS feature ensures that vPC member ports on both peers are configured identically to prevent inconsistencies that could lead to traffic black-holing?

Question 97hardmultiple choice

In an ACI fabric, a contract between two EPGs uses a filter that permits TCP port 443. The provider EPG is configured with a VMM domain integration. Which statement about the contract's effect is true?

Question 98mediummultiple choice

An engineer needs to enable equal-cost multipath (ECMP) routing in a spine-leaf fabric using OSPF. Which OSPF feature allows load balancing across multiple equal-cost paths?

Question 99easymultiple choice

Read the full VRF explanation →

Which VXLAN component is responsible for encapsulating and decapsulating Ethernet frames into UDP packets for transport over the IP network?

Question 100mediummultiple choice

In the context of ACI L3Out, which object is used to advertise external networks into the ACI fabric and is associated with a VRF?

Question 101hardmultiple choice

A data center network uses MST to interoperate with a legacy switch that supports only RSTP. Which MST configuration parameter must match between the MST region and the legacy switch?

Question 102mediummultiple choice

An engineer is configuring a new VLAN on a Nexus switch that is part of a vPC pair. Which step is mandatory to ensure the VLAN is created on both vPC peers?

Question 103mediummulti select

Which TWO statements are true regarding VXLAN BUM traffic handling? (Choose two.)

Question 104hardmulti select

An engineer is deploying an ACI fabric with VMM integration for VMware vSphere. Which THREE components must be configured to enable dynamic EPG assignment based on VM attributes? (Choose three.)

Question 105easymulti select

Which TWO commands are used on NX-OS to verify vPC status and consistency? (Choose two.)

Question 106easymultiple choice

In a spine-leaf architecture using eBGP, which of the following is the recommended BGP configuration for the spine switches?

Question 107easymultiple choice

Which VPC component is used to send Layer 2 control plane traffic between peer switches?

Question 108mediummultiple choice

In VXLAN, which method of handling BUM traffic replicates packets to remote VTEPs only when there is a known receiver behind that VTEP?

Question 109mediummultiple choice

An engineer is configuring a VXLAN EVPN fabric. Which address family must be enabled under BGP to exchange MAC/VTEP reachability information?

Question 110mediummultiple choice

In ACI, which construct defines the set of endpoints that can communicate based on contracts?

Question 111mediummultiple choice

Which NX-OS command displays the VPC status, including peer-link and consistency parameters?

Question 112hardmultiple choice

In a VXLAN EVPN fabric with MP-BGP, which route type is used to advertise MAC addresses and associated VNI?

Question 113hardmultiple choice

Which of the following is a requirement for VPC peer keepalive to function correctly?

Question 114hardmultiple choice

In ACI, when integrating with VMware vSphere, which component is used to automatically push port group configurations to virtual switches?

Question 115mediummultiple choice

Which MST configuration parameter must match across all switches in the same MST region?

Question 116mediummultiple choice

In VXLAN, what is the role of the VNI in the overlay network?

Question 117easymultiple choice

Which command is used to verify the OSPF neighbor state in NX-OS?

Question 118mediummultiple choice

In ACI, what is the purpose of a contract?

Question 119hardmultiple choice

Which VXLAN EVPN route type is used for discovering VTEPs and building the BUM forwarding tree?

Question 120mediummultiple choice

What does the oversubscription ratio in a spine-leaf fabric represent?

Question 121mediummulti select

Which TWO statements are true about VPC consistency checks? (Choose two.)

Question 122hardmulti select

Which THREE are valid methods for handling BUM traffic in VXLAN? (Choose three.)

Question 123mediummulti select

Which TWO are benefits of using a spine-leaf architecture? (Choose two.)

Question 124mediummultiple choice

A data center spine-leaf architecture is designed to ensure low latency and high bandwidth. Which of the following best describes the role of the leaf switches in this topology?

Question 125mediummulti select

A network engineer is planning to implement VPC in a Cisco Nexus data center. Which two statements about VPC components are true? (Choose two.)

Question 126mediummulti select

Which three components are part of the VXLAN overlay architecture? (Choose three.)

Question 127easymulti select

A data center architect is designing a spine-leaf fabric with OSPF as the underlay routing protocol. Which two statements about OSPF in this design are correct? (Choose two.)

Question 128hardmulti select

In an ACI fabric, a tenant is configured with multiple bridge domains (BDs) and EPGs. Which three statements correctly describe the ACI model? (Choose three.)

Question 129easymulti select

Which two commands are used to verify Spanning Tree Protocol (STP) status on a Cisco Nexus switch? (Choose two.)

Question 130mediummulti select