Exam 220-1201 Topic 1 Question 156 Discussion

Actual exam question for CompTIA's 220-1201 exam
Question #: 156
Topic #: 1
Which of the following are radio frequency connections? (Select two.)

Suggested Answer: B,D Vote an answer

CompTIA A+ explains that radio frequency (RF) connections use electromagnetic waves instead of copper or optical cabling. Satellite uses RF signals transmitted to and from orbiting satellites, while cellular networks (3G/4G/5G) use RF communications via cell towers.
Cable uses coaxial wired infrastructure, DSL uses telephone lines, Ethernet is twisted-pair copper, and fiber uses light instead of RF.
Satellite and cellular are the only technologies in the list that rely on wireless radio frequency transmission as their medium. The A+ networking domain emphasizes understanding the physical media of WAN technologies and distinguishing wired vs. wireless connectivity, making B and D the correct answers.

by Tyrone at Jun 23, 2026, 04:37 AM

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