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A network architect needs to design a solution to ensure every cloud environment network is built to the same baseline. The solution must meet the following requirements:
Use automated deployment.
Easily update multiple environments. Share code with a community of practice.
Which of the following are the best solutions? (Choose two.)
Correct Answer:AB
CI/CD pipelines: Automate the provisioning and configuration of network baselines across all environments, and make it easy to roll out updates consistently.
Public code repository: Enables your community of practice to collaborate, review, and contribute to shared IaC modules and templates, while making updates discoverable and reusable.
A network engineer is designing a Layer 2 deployment for a company that occupies several floors in an office building. The engineer decides to make each floor its own VLAN but still allow for communication between all user VLANs. The engineer also wants to reduce the time necessary for STP convergence to occur when new switches come online. Which of the following should the engineer enable to accomplish this goal?
Correct Answer:D
Enabling PortFast on access ports lets them immediately enter the forwarding state, skipping the STP listening/learning timers, and dramatically speeds up convergence when switches or end-stations come online.
An application is hosted on a three-node cluster in which each server has identical compute and network performance specifications. A fourth node is scheduled to be added to the cluster with three times the performance as any one of the preexisting nodes. The network architect wants to ensure that the new node gets the same approximate number of requests as all of the others combined. Which of the following load-balancing methodologies should the network architect recommend?
Correct Answer:D
Assign each of the three original nodes a weight of 1 and the new high-performance node a weight of 3. With weighted balancing, the new node will receive 3 / (1 + 1 + 1 + 3) = 50% of traffic - equal to the combined load on the other three.
A network administrator is troubleshooting an outage at a remote site. The administrator examines the logs and determines that one of the internet links at the site appears to be
down. After the service provider confirms this information, the administrator fails over traffic to the backup link. Which of the following should the administrator do next?
Correct Answer:D
After implementing the failover solution, you should confirm that all services and network paths are fully restored and operating correctly before closing the ticket.
An outage occurred after a software upgrade on core switching. A network administrator thinks that the firmware installed had a bug. Which of the following should the network administrator do next?
Correct Answer:B
Before taking corrective action, you need to verify that the new firmware is indeed the root cause, such as by rolling back to the previous version in a controlled test or reproducing the failure in a lab, so you??re sure your fix addresses the actual problem.