220-802 Question #571: Real Exam Question with Answer & Explanation

The correct answer is C: Cordless phone is interfering with signal at home. Many older cordless phones operate on the 2.4 GHz frequency band, the same frequency used by 802.11b/g/n Wi-Fi networks. When a cordless phone is in use at home, it can cause significant RF (radio frequency) interference with the Wi-Fi signal, resulting in intermittent or dropped

Question

A technician receives a trouble ticket about intermittent wireless on a user's laptop while they are at home but not at work. Which of the following could be the cause of this issue?

Options

AWhile at home, the user is too close to their access point
BEncryption is set differently at home then at work
CCordless phone is interfering with signal at home
DLaptop's wireless is set to only work while at work

Explanation

Many older cordless phones operate on the 2.4 GHz frequency band, the same frequency used by 802.11b/g/n Wi-Fi networks. When a cordless phone is in use at home, it can cause significant RF (radio frequency) interference with the Wi-Fi signal, resulting in intermittent or dropped connections. This would explain why the issue only occurs at home (where the cordless phone is) and not at work. The other options are less plausible: being too close to an access point is rarely an issue, encryption mismatches would cause a complete connection failure (not intermittent), and laptops do not have location-based wireless restrictions.

Community Discussion

No community discussion yet for this question.

Full 220-802 Practice