多项选择题

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

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单项选择题

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

单项选择题

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

多项选择题

In the Cisco FabricPath domain， one switch becomes the root for the multidestination tree. Cisco FabricPath switches compare which three parameters to select the root？（）

A. Root priority
B. System ID
C. Bridge ID
D. Switch ID
E. Port ID
F. Subswitch ID