A Linux administrator is attempting to capture all network traffic coming to the server from...

To capture all traffic from a specific IP address using tcpdump, the correct syntax is:

bash

tcpdump host 10.0.6.5

host is the correct keyword used to filter packets from or to a specific IP address.

ip, addr, and net are not valid or appropriate filters in this context:

ip is a protocol filter, not an address filter.

net would filter an entire subnet, not a single host.

addr is invalid syntax for tcpdump.

As described in CompTIA Linux+ XK0-005 Official Study Guide, Domain 2.0 (Networking Tools):

“The tcpdump utility can be used to capture and analyze packets. Use the keyword host to filter traffic to or from a specific IP address.”