Link Aggregation and Redundancy SONIC-DEPLOY Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   Two Dell SONiC switches are configured for MC-LAG. The peer-link is up, and the keepalive is up. The downstream switch is connected to both switches with two LACP links. The administrator notices that the downstream switch sees two separate LAGs instead of one. What is the most likely cause?

   • AThe LACP system ID is different on the two switches.
   • BThe peer-link is not carrying LACP control traffic.
   • CThe keepalive is not configured with a VRRP virtual IP.
   • DThe downstream switch is in passive LACP mode.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   When verifying VRRP failover on Dell SONiC, which state indicates that a router has taken over as the active forwarder for the virtual IP?

   • AInit
   • BActive
   • CBackup
   • DMaster
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4. 13application · medium

   A network team is configuring VRRP on Dell SONiC for a VLAN with the virtual IP 192.168.1.1. Switch A is the master, and Switch B is the backup. The administrator wants to ensure that if Switch A's uplink to the core fails, Switch B becomes master. What should be configured?

   • AConfigure VRRP interface tracking on Switch A to decrement its priority when the uplink goes down.
   • BConfigure a higher VRRP advertisement interval on Switch B.
   • CConfigure the virtual IP on Switch B only.
   • DConfigure VRRP preemption on Switch B to force it to become master.
   Reveal Solution Discussion Select an answer first
5. 14foundation · easy

   Which show command on Dell SONiC displays the current VRRP state (master or backup) for a specific VRRP group?

   • Ashow ip vrrp
   • Bshow protocols vrrp
   • Cshow vrrp status
   • Dshow vrrp
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6. 15expert · hard

   An organization is deploying MC-LAG on two Dell SONiC switches. The peer-link is a 10GbE link, and the keepalive is configured over the management network. The downstream switch uses LACP in passive mode. During a failover test, the peer-link fails, and the keepalive remains up. The administrator observes that the secondary switch does not shut down its MC-LAG members. What is the most likely cause?

   • AThe keepalive is not configured correctly, so the secondary switch does not detect the peer-link failure.
   • BThe downstream switch is in passive LACP mode, so it does not detect the MC-LAG change.
   • CThe MC-LAG is configured in static mode, so the secondary switch does not need to shut down its members.
   • DThe peer-link is not the primary path for MC-LAG control traffic.
   Reveal Solution Discussion Select an answer first