GCP Prep

Networking Practice Questions

VPC, firewall rules, load balancing and DNS. 9 original questions with full explanations.

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Question 1 of 9

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Networkingmedium

A public web application serves HTTPS traffic to users across Europe, North America and Asia, and must present a single IP address worldwide. Which load balancer is appropriate?

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These questions are written by GCP Prep to test understanding of publicly documented concepts. They are not real exam questions.

What this test covers

One concept per question. If you can explain each of these without hesitating, you are in good shape on Networking.

  • Global HTTP(S) traffic with one anycast address means the global Application Load Balancer
  • Firewall rules are evaluated by priority, lowest number first, and the first match wins
  • Implied firewall rules deny all ingress and allow all egress
  • Pass-through load balancing preserves the client source address and supports UDP
  • TTL determines how long resolvers cache an answer, so it must be lowered before a change
  • Cache keys determine what counts as the same request
  • Cloud NAT provides outbound-only internet access for instances without public addresses
  • Shared VPC centralises network control while devolving resource management
  • VPC peering is non-transitive by design