Network

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

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

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

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

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

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?

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?

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

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?

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

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

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?

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

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

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

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.)

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.)

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

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?

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

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?

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.)

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

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

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

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?

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?

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?

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

In ACI, what is the purpose of a contract?

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

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?

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?

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

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?

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

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?

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

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

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

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

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

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

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

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

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?

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

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

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?

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?

Which statement about RSTP (802.1w) is true?

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

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?

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?

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

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

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?

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

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

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

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?

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

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

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?

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

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

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?

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

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

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?

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

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

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

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

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?

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

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

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?

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?

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

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

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?

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

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

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

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

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

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

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.)

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?

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.)

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?

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?

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

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

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

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?

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?

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?

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?

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

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

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

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?

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

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?

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

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

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?

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

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

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

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

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

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

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?

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

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

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?

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

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?

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?

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

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

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

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

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?

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

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

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