單項選擇題Which attribute is used to pass the user role back to the Nexus when remote AAA is enabled？（）

A. Cisco AV-pair
B. TACACS+ or RADIUS ack frame role attribute
C. DH-CHAP challenge attribute
D. privilege level attribute


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1.多項選擇題Consistency checks and compatibility checks are performed before a Virtual PortChannel （vPC） is created. During a compatibility check， one vPC peer conveys configuration information to the other vPC peer in order to verify that vPC member ports can actually form a PortChannel.     Which statements about a "Virtual PortChannel graceful consistent check" are true？（）

A. Graceful consistency check is enabled by default.
B. When graceful consistency check is enabled， only the links on the secondary peer device are suspended.
C. Graceful consistency check is disabled by default， so to enable this feature， use graceful consistency-check command under VPC domain configuration mode.
D. When graceful consistency check is enabled， only the inconsistent VLANs on the secondary peer device are suspended.

2.多項選擇題Which two statements about VACLs on Cisco Nexus 7000 Series Switches are true？ （）

A. A single VACL can be shared across two or more VDCs.
B. Use of VACLs requires no special license to be installed.
C. VACLs make use of IP or MAC ACLs.
D. Only options drop and forward are permitted.

3.多項選擇題Overlay Transport Virtualization （OTV） provides an overlay that enables Layer 2 connectivity between separate Layer 2 domains， while keeping these domains independent and preserving the fault isolation， resiliency， and load-balancing benefits of an IP-based interconnection. Which statements are true about OTV Adjacency Server？（）

A. Adjacency Server is required when OTV is deployed with unicast-only transport.
B. Adjacency Server is required when OTV is deployed with multicast-enabled transport.
C. Each OTV device wishing to join a specific OTV logical overlay needs to first register with the Adjacency Server.
D. Each OTV device trying to join a specific OTV logical overlay needs to be configured as an Adjacency Server.

4.多項選擇題SNMPv3 authorizes management operations only by configured users and encrypts SNMP messages. Which authentication protocols does Cisco NX-OS Software use for SNMPv3？（）

A. NMAC-SHA-96 authentication protocol
B. HMAC-MD5-96 authentication protocol
C. Community String Match protocol
D. NMAC-MD5-96 authentication protocol
E. HMAC-SHA-96 authentication protocol

5.單項選擇題In a Cisco Nexus 7000 platform configured with GLBP， which GLBP timer can be tuned to prevent unnecessary GLBP state changes during a switchover or ISSU？（）

A. GLBP redirect timer
B. GLBP forwarder pre-empt delay minimum timer
C. GLBP hold timer
D. GLBP pre-empt delay minimum timer
E. GLBP extended hold timer
F. GLBP nonstop forwarding timer

6.單項選擇題By default， what type of SSH server key is generated by Cisco NX-OS Software？（）

A. DSA key generated with 512 bits
B. RSA key generated with 768 bits
C. RSA key generated with 1024 bits
D. DSA key generated with 1024 bits
E. RSA key generated with 2048 bits

8.單項選擇題Where is a typical request in the Cisco UCS XML API placed in the data management engine， and， after the request is confirmed， what is updated？（）

A. The request is placed in the transactor queue in FIFO order and the management information tree is updated.
B. The request is placed in the replicator and persistifier and the store is updated.
C. The request is placed in the data management engine and the application gateway is updated. 
D. The request is placed in the buffer queue and the commit buffer queue is updated.

9.單項選擇題

On a Cisco Nexus 7000 Series Switch， what is the purpose of this command？（） 
switch# config terminal 
switch（config）# mac address-table learning-mode conversational vlan 1-10 
switch（config）# 
 

A. Enable conversational learning on FabricPath vlans 1-10 for F-Series module
B. Enable FabricPath protocol on VLANs 1–10
C. No need for this command as conversational learning is enabled by default for all VLANs.
D. Enable conversational learning on Classical Ethernet VLAN for F-Series module

10.多項選擇題Which three statements best describe multicast operation on Cisco Nexus switches in a data center？（）

A. Cisco NX-OS Software does not support PIM dense mode.
B. The command ip multicast-routing must be enabled in Cisco NX-OS Software before any multicast configuration is possible on the switch.
C. PIM CLI configuration and verification commands are not available until you enable the PIM feature with the feature pim command.
D. Cisco NX-OS Software supports multicast routing per Layer 3 VRF instance.
E. The default PIM operational mode on the Cisco Nexus 7000 switch is SSM.

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Your company wants Server 1/eth0 （vNIC 1） configured so that it always uses Fabric Interconnect A Port Channel 1 （Po1） when it communicates with anything outside of the Cisco UCS domain. However， if vNIC 1 fails over to Fabric Interconnect B using fabric failover， then vNIC 1 can any uplink port on Fabric Interconnect B. Which statements are true？ （）

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