350-401 Question #555: Real Exam Question with Answer & Explanation

Question

Refer to the exhibit. An engineer configures VRRP and issues the show commands to verify operation. What does the engineer confirm about VRRP group 1 from the output?

Options

• AThere is no route to 10.10.1.1/32 in R2's routing table
• BIf R1 reboots, R2 becomes the master virtual router until R2 reboots
• CCommunication between VRRP members is encrypted using MD5
• DR1 is master if 10.10.1.1/32 is in its routing table

Explanation

The engineer confirms that R1's master status for VRRP group 1 is conditional on the presence of the 10.10.1.1/32 route in its routing table, indicating VRRP object tracking is configured.

Common mistakes.

• A. The output of 'show vrrp' commands on R1 confirms its own VRRP state and tracked objects, not the routing table contents of R2.
• B. If R1 reboots, R2 would become master, but R1 would regain mastership upon coming back online and meeting priority criteria if preemption is enabled, not just until R2 reboots.
• C. The provided choices and typical VRRP configurations do not inherently confirm MD5 encryption; VRRP uses plain text by default or MD5 if explicitly configured, which isn't stated or implied as the confirmation point.

Concept tested. VRRP object tracking for high availability

Reference. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/xe-3s/fhrp-xe-3s-book/fhrp-vrrp.html

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