5.2 Maintaining and Troubleshooting Connectivity Issues. Considerations Include: PROFESSIONAL-CLOUD-NETWORK-ENGINEER Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   Which of the following is a common cause of VPN tunnel establishment failure?

   • ADNS misconfiguration for the on-premises domain
   • BMismatched pre-shared keys between the VPN gateway and on-premises device
   • CIncorrect firewall rules on the on-premises network
   • DInsufficient bandwidth on the internet connection
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   In a VPC Flow Log entry, which field indicates whether traffic was allowed or denied?

   • Abytes_sent
   • Baction
   • Cstart_time
   • Dsrc_ip
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   What is the recommended best practice for maintaining reliable connectivity when using Cloud Interconnect?

   • AUse VPN tunnels as the primary connection
   • BUse a single connection to simplify management
   • CMonitor the connection but do not add redundancy
   • DUse redundant connections with diverse paths
   Reveal Solution Discussion Select an answer first
5. 14expert · hard

   You have a Cloud Router with two BGP sessions to two different on-premises routers. Both sessions are 'Established'. You want traffic to primarily use the first on-premises router, with the second as a backup. You have configured the first session with a lower MED (Multi-Exit Discriminator) value. However, traffic is still being sent to the second router. What is the most likely reason?

   • AThe Cloud Router is not sending the MED value.
   • BThe route priority is set to a higher value on the first session.
   • CThe on-premises router is not honoring the MED value.
   • DThe BGP session is not established.
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   In a blue/green deployment using an Application Load Balancer, what is the typical method to switch traffic from the blue environment to the green environment?

   • ADelete the blue target group
   • BChange the health check path on the blue instances
   • CModify the DNS record to point to the green environment's IP
   • DUpdate the listener rules to forward traffic to the green target group
   Reveal Solution Discussion Select an answer first