220-1101 · Question #473
A company in a large building uses a wireless network for its workstations. After a new company moves into the building on the floor below the old company's wireless network begins experiencing connec
The correct answer is A. External interference. The timing of the issue - beginning exactly when a new company moves in nearby - strongly points to external interference. The new company's wireless access points, cordless phones, or other 2.4GHz/5GHz devices likely operate on the same or overlapping Wi-Fi channels, causing sig
Question
A company in a large building uses a wireless network for its workstations. After a new company moves into the building on the floor below the old company's wireless network begins experiencing connectivity issues. Which of the following is the most likely cause?
Options
- AExternal interference
- BPort flapping
- CHigh latency
- DLimited connectivity
How the community answered
(16 responses)- A81% (13)
- B13% (2)
- C6% (1)
Explanation
The timing of the issue - beginning exactly when a new company moves in nearby - strongly points to external interference. The new company's wireless access points, cordless phones, or other 2.4GHz/5GHz devices likely operate on the same or overlapping Wi-Fi channels, causing signal collision and degradation. This is a classic co-channel or adjacent-channel interference scenario in dense building environments. Port flapping (B) is a wired network issue involving a switch port rapidly going up and down. High latency (C) is a symptom, not a cause. Limited connectivity (D) is also a symptom description, not a root cause.
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