350-601 Practice Test 2 — 10 Questions

Question 1

A large enterprise is using Cisco UCS Manager to manage a chassis with 8 B-Series blades. The environment uses a combination of Ethernet and Fibre Channel traffic. The UCS fabric interconnect (FI) is configured in end-host mode with two uplinks to the core network. Recently, the engineering team deployed a new service profile for a high-performance computing workload that requires 40Gbps Ethernet per vNIC and 16Gbps Fibre Channel per vHBA. The server has two vNICs and two vHBAs. After deployment, the server's OS shows only 10Gbps connectivity on each vNIC. The engineer checks UCS Manager and sees that the vNIC templates are set to '10 Gbps' and the vHBA templates are set to '16 Gbps' but the actual link speed for vNICs is only 10Gbps. The fabric interconnect ports are configured as 40Gbps uplinks. The engineer has verified that the server adapter supports 40Gbps. What is the most likely cause of the speed mismatch?

Accepted Answer

The vNIC template used in the service profile specifies a requested speed of '10 Gbps' instead of '40 Gbps'.. The vNIC template in the service profile defines the requested speed for the virtual NIC. If the template is set to '10 Gbps', the UCS Manager will allocate only 10 Gbps of bandwidth per vNIC, regardless of the physical adapter's capability or the uplink speed. Since the engineer verified the adapter supports 40 Gbps and the uplinks are 40 Gbps, the mismatch is directly caused by the template configuration.

Answer

The fabric interconnect uplinks are configured as 40Gbps, but the port channel is not configured correctly, causing speed negotiation to fail.

Answer

The server's adapter policy is set to 'Windows' mode, which limits Ethernet speeds to 10Gbps.

Answer

The QoS policy applied to the vNIC limits the bandwidth to 10Gbps.

Question 2

A storage network engineer is designing a Fibre Channel SAN with two Cisco MDS switches in a single VSAN. The design requires that if one switch fails, the storage traffic continues to flow without manual intervention. Which two technologies should be implemented?

Accepted Answer

Port channels. Fibre Channel multipathing (E) is correct because it enables multiple physical paths between initiators and targets, allowing storage traffic to continue automatically if one switch fails. This is typically implemented using multipathing software (e.g., EMC PowerPath, native OS MPIO) that load-balances and fails over across redundant SAN fabrics without manual intervention.

Answer

NPV

Answer

VSAN trunking

Answer

IVR

Question 3

A company is deploying FCoE in their data center. The design includes a Cisco Nexus 9000 switch with FEX modules. The storage team insists on using dedicated FCoE VLANs. Which best practice should be followed to ensure lossless behavior for FCoE traffic?

Accepted Answer

Enable PFC on the switch for the FCoE VLAN. Option D is correct because FCoE requires lossless transport to prevent frame drops that could corrupt Fibre Channel frames. Priority Flow Control (PFC), defined in IEEE 802.1Qbb, enables pause frames on a per-priority basis, allowing the FCoE VLAN to be configured with a dedicated priority class that receives no-drop treatment. On Cisco Nexus 9000 switches, this is achieved by enabling PFC on the specific VLAN used for FCoE traffic, ensuring lossless behavior without affecting other traffic classes.

Answer

Configure traffic shaping on FCoE interfaces

Answer

Use the same VLAN for FCoE and IP traffic to reduce VLAN count

Answer

Disable flow control on all interfaces

Question 4

Which THREE statements about Cisco UCS Manager automation using XML API are correct? (Choose three.)

Accepted Answer

Operations can be made idempotent by using the 'dn' (distinguished name) to specify the exact object.. Option A is correct because the Cisco UCS Manager XML API allows operations to be idempotent by using the 'dn' (distinguished name) attribute to target a specific managed object. When you include the 'dn' in an XML request, the operation applies only to that exact object, so repeating the same request produces the same result without side effects. This is a key design principle of the management information model (MIT) that ensures predictable and safe automation.

Answer

The API uses SNMP for configuration changes.

Answer

The UCS Manager XML API uses RESTful JSON format.

Question 5

A company has two Cisco MDS 9700 switches in a dual-fabric SAN. Each fabric has its own set of storage arrays and hosts. The company wants to enable selective communication between specific devices in Fabric A and Fabric B without merging the fabrics. Which Cisco technology should be used?

Accepted Answer

IVR. Cisco IVR (Inter-VSAN Routing) allows selective communication between devices in different VSANs without merging the fabrics. In this dual-fabric SAN scenario, IVR enables specific hosts in Fabric A to communicate with specific storage arrays in Fabric B while keeping the VSANs and fabrics logically isolated, preserving fault domains and administrative boundaries.

Answer

FCIP

Answer

NPV

Answer

Port channels

Question 6

An engineer is designing an automation solution for a large data center with multiple Cisco UCS Manager domains. Which approach best ensures idempotent configuration operations?

Accepted Answer

Using a declarative automation tool like Ansible with idempotent modules. Option B is correct because Ansible's declarative modules for Cisco UCS Manager (e.g., `ucs_*` modules) are designed to be idempotent: they compare the current state of the configuration against the desired state defined in the playbook and only apply changes when necessary. This ensures that running the same playbook multiple times yields the same result without unintended side effects, which is critical for large-scale automation across multiple UCS domains.

Answer

Writing imperative Python scripts that execute CLI commands

Answer

Directly calling UCS Manager XML API using POST requests

Answer

Using SNMP to set configuration parameters

Question 7

A storage administrator reports that an FC initiator cannot log in to the SAN. The FC switch shows the following on the interface connected to the initiator: 'VSAN 100, State: Offline'. Which action should be taken to resolve the issue?

Accepted Answer

Configure port speed manually on the switch interface. The interface state 'Offline' in VSAN 100 indicates a Layer 1 or Layer 2 issue, often caused by a speed mismatch between the FC initiator and the switch interface. Configuring the port speed manually on the switch interface forces the link to negotiate at a specific speed, resolving the mismatch and bringing the interface online. This is a common fix when auto-negotiation fails or the initiator does not support the default speed settings.

Answer

Create a zone including the initiator and target

Answer

Change the interface VSAN to match the initiator

Answer

Increase the number of buffer credits on the interface

Question 8

A Cisco MDS switch has the above configuration on two 16 Gbps FC interfaces. An engineer connects an initiator to fc1/2 and a target to fc1/1. The initiator cannot discover the target. What is the most likely cause?

Accepted Answer

The fc1/1 interface is configured as an E-port but is connected to a storage target.. Option D is correct because the configuration shows interface fc1/1 with the command 'switchport mode E', which explicitly configures it as an E-port (expansion port). E-ports are used to interconnect two Fibre Channel switches, not to connect a storage target. When a target is connected to an E-port, the link will not come up properly because the target expects to be connected to an F-port (fabric port) or FL-port, preventing discovery by the initiator.

Answer

The fc1/2 interface is configured as an F-port but the initiator requires an FL-port.

Answer

The fc1/1 interface is configured as dedicated rate-mode but the target expects shared.

Answer

The fc1/2 interface is configured as shared rate-mode which prevents F-port operation.

Question 9

Refer to the exhibit. An automation script queries the Cisco Nexus 9000 using the NX-API JSON format and receives the above output. The script is designed to validate that interface Eth1/1 is in access mode with VLAN 100. However, the script reports a failure. What is the most likely reason?

Accepted Answer

The script uses strict type checking, and the values are returned as strings instead of integers.. The NX-API returns all values as strings in JSON output, including numeric fields like VLAN IDs. If the script uses strict type checking (e.g., `===` in Python or JavaScript), comparing the string '100' to the integer 100 will fail, even though the interface is correctly configured in access mode with VLAN 100. This is a common pitfall when parsing NX-API responses without explicit type conversion.

Answer

The JSON output is malformed and cannot be parsed.

Answer

The interface is administratively down.

Answer

The JSON output is missing the 'switchportMode' field.

Question 10

A data center engineer is designing a storage network for a virtualized environment with 100 hosts and 50 storage arrays. Each host requires 4 Gbps of bandwidth to storage, and each storage array provides 8 Gbps. All devices use 16 Gbps FC links. What is the minimum number of 16 Gbps FC links required to support the total bandwidth demand without oversubscription?

Accepted Answer

25. The total bandwidth demand from hosts is 100 hosts × 4 Gbps = 400 Gbps. Each storage array provides 8 Gbps, so total storage bandwidth is 50 arrays × 8 Gbps = 400 Gbps. Since all links are 16 Gbps FC, the minimum number of links required to carry 400 Gbps without oversubscription is 400 / 16 = 25 links. This assumes full-duplex links and no oversubscription in the fabric.

Answer

50

Answer

200

Answer

100