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Networking and Engineer Interview Questions and Answer – Part 2

  • Say I open a web browser and enter an address. I hit enter. Describe how the connection the works in as much detail as possible. Trying to hear that they understand:
    • DNS
    • Network routing
    • Load Balancing
    • Ports on server
    • Service that is serving port
  • What’s a PTR in DNS?
  • What’s a MX record in DNS?
  • How a CDN chooses the closest host to serve a client?
  • In which cases would you choose to not implement a CDN?
  • How do you measure the performance of a server/web application? (tools, methods)
  • What are secure ways to SSH to a server inside a private network from a public location?
Rajesh Kumar
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