220-1101 · Question #138
220-1101 Question #138: Real Exam Question with Answer & Explanation
The correct answer is A: 802.11ac. The 802.11ac wireless networking protocol exclusively broadcasts at 5GHz frequencies, offering higher bandwidth and less interference than 2.4GHz bands. Other common protocols like 802.11b and 802.11g operate solely on the 2.4GHz band.
Question
Which of the following wireless networking protocols will broadcast at 5GHz frequencies?
Options
- A802.11ac
- B802.11b
- C802.11g
- D802.11q
- E802.11x
Explanation
The 802.11ac wireless networking protocol exclusively broadcasts at 5GHz frequencies, offering higher bandwidth and less interference than 2.4GHz bands. Other common protocols like 802.11b and 802.11g operate solely on the 2.4GHz band.
Common mistakes.
- B. The 802.11b standard operates only on the 2.4GHz frequency band.
- C. The 802.11g standard operates only on the 2.4GHz frequency band.
- D. 802.11q is not a wireless networking protocol for frequency bands; it refers to the IEEE 802.1Q standard for VLAN tagging in Ethernet networks.
- E. 802.11x is not a wireless networking protocol for frequency bands; it is often confused with 802.1X, an IEEE standard for port-based Network Access Control used for authentication.
Concept tested. Wi-Fi frequency bands (802.11 standards)
Reference. https://learn.microsoft.com/en-us/windows/win32/winsock/wireless-lan-supported-standards
Topics
Community Discussion
No community discussion yet for this question.