A network sniffer is software or hardware that:
A . Records user activity and transmits it to the server
B . Captures and analyzes network communication
C . Protects workstations from intrusions
D . Catalogs network data to create a secure index
Answer: B
Explanation:
A network sniffer is a computer tool that captures network data in the form of low-level packets. Network sniffers can be used for technical troubleshooting and analyzing the communication.