Homework Help: Questions and Answers: What are two probable causes of a VoIP implementation experiencing dropouts, echoes, or glitches? (Choose two.)
A. high bandwidth
B. high latency
C. high cable voltage
D. high cable impedance
E. high jitter
Answer:
First, let’s the understand VoIP (Voice over IP): VoIP converts analog voice signals into digital data packets for transmission over IP networks.
Given Options: Step by Step Answering
a) High bandwidth
- VoIP usually requires minimal bandwidth, so excess bandwidth is not a cause of dropouts or glitches.
b) High Latency
- Latency refers to the delay in data transmission over a network. When latency is high, it can result in delayed audio transmission, causing echoes or dropouts in a VoIP call.
c) High cable voltage
- This is not typically related to network issues affecting VoIP.
d) High cable impedance
- This is related to electrical resistance in the cable, but it’s not a common cause for VoIP quality issues.
e) High Jitter
- Jitter refers to variations in packet arrival times. When jitter is high, packets arrive out of order, which can cause glitches and audio distortion during VoIP calls.
Final Answer:
Based on the above analysis, the correct answer is:
B. High latency
E. High jitter
Two probable causes of a VoIP implementation experiencing dropouts, echoes, or glitches are high latency and high jitter.
These are both network-related issues that directly impact the quality of VoIP communications by affecting how voice data packets are transmitted and received.
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