A User Has Reported an Issue with Wireless VoIP Phones

question 42

Multiple Choice

A user has reported an issue with wireless VoIP phones dropping calls during business hours. When working late or in the evenings, the user does not experience call drops. When the network technician investigates the issue, all WAPs have balanced the number of connections evenly and are not dropping off the network. The network technician connects to the wireless network in the user's office and starts a continuous ping to an external server. The results show a drastic and varied response time for each packet. Which of the following is the MOST likely cause of the dropped calls?

• A) No QoS configured on the network
• B) Signal-to-noise ratio
• C) Interference from the microwave in the breakroom
• D) Rogue AP installed in the office

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Definitions:

Face Value

The nominal or dollar value stated on a security or financial instrument, such as a bond or stock, representing its worth at issuance or par value.

Interest Rate Risk

The risk of investment value changes due to variations in the level of interest rates.

Zero-Coupon

A bond that does not pay periodic interest and is issued at a substantial discount from its face value.

Coupon

The interest rate stated on a bond when issued, which represents the annual interest payment made to the bondholder.