1. While troubleshooting a network connection problem for a co-worker, you discover the computer is querying a non-existent DNS server. What command-line utility can you use to assign the correct DNS server IP address? Is DNS using UDP or TCP?

Question

1.	While troubleshooting a network connection problem for a co-worker, you discover the computer is querying a non-existent DNS server. What command-line utility can you use to assign the correct DNS server IP address? Is DNS using UDP or TCP?

GPT 3.5 · Answer

The command-line utility that can be used to assign the correct DNS server IP address is "ipconfig" on Windows or "ifconfig" on Unix/Linux.

DNS primarily uses UDP (User Datagram Protocol) for communication. TCP (Transmission Control Protocol) can be used by DNS in certain situations, such as when the response size exceeds the maximum limit for UDP or in cases where packet loss is detected.