Which of the following analyzes network traffic to trace specific transactions and can intercept and
log traffic passing over a digital network? Each correct answer represents a complete solution.
Choose all that apply.

A.
Wireless sniffer

B.
Spectrum analyzer

C.
Protocol analyzer

D.
Performance Monitor

Explanation:

Protocol analyzer (also known as a network analyzer, packet analyzer or sniffer, or for particular
types of networks, an Ethernet sniffer or wireless sniffer) is computer software or computer
hardware that can intercept and log traffic passing over a digital network. As data streams flow
across the network, the sniffer captures each packet and, if needed, decodes and analyzes its
content according to the appropriate RFC or other specifications.

Answer option D is incorrect. Performance Monitor is used to get statistical information about the
hardware and software components of a server.
Answer option B is incorrect. A spectrum analyzer, or spectral analyzer, is a device that is used to
examine the spectral composition of an electrical, acoustic, or optical waveform. It may also
measure the power spectrum.