Networking & protocols
Read a sample question. The free interview is one voice screen after you create an account.
Technical
How do TCP and UDP differ, and when would you choose one over the other for a service?
Compare TCP and UDP in terms of reliability, ordering, and overhead. Give examples of workloads where each is the right choice (e.g. streaming, DNS, databases).
Also in this theme
Describe how DNS resolution works from a client request to the final response.
Technical
What is the difference between layer 4 and layer 7 load balancing? Give examples.
Technical
Explain the difference between layer 2 and layer 3 networking in a data center or cloud.
Technical
Explain NAT and how it affects outbound and inbound connectivity.
Technical