8.2.7 VOICE OVER IP (VOIP) UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Question:
Which of the following BEST describes the main purpose
of the codec used in VoIP?
Answer:
An algorithm to compress data in order to save on bandwidth.
EXPLANATION
The codec's main purpose is to compress and decompress data to save
bandwidth.
Question:
Which of the following BEST describes VoIP (Voice over
Internet Protocol)?
Answer:
A protocol optimized for voice data transmission (telephone calls) through a
packet-switched IP network.
VoIP is a protocol that relies on IP networks to carry voice data.
Question:
Which of the following are considered VoIP endpoints?
Answer:
Hard phones and soft phones
Hard phones and soft phones are endpoints for VoIP since both can take calls
over Ethernet cable.
Question:
Larry is tasked with implementing a VoIP system in the
office. He presents his research to his boss, who wants to
use the current hard phones to save money. What BEST
explains why this is not possible?
Answer:
A hard phone does not have the internal computing parts to accept VoIP
transmissions.
VoIP requires a computer to work. VoIP hard phones are, in essence, computers
that understand network protocols
Question:
Amber, a network administrator, is conducting VoIP
training for other IT team members. Melanie, a new team
member, is confused about the difference between
latency and jitter. What is the BEST way to explain the
difference?
Answer:
QUESTIONS AND CORRECT ANSWERS
Question:
Which of the following BEST describes the main purpose
of the codec used in VoIP?
Answer:
An algorithm to compress data in order to save on bandwidth.
EXPLANATION
The codec's main purpose is to compress and decompress data to save
bandwidth.
Question:
Which of the following BEST describes VoIP (Voice over
Internet Protocol)?
Answer:
A protocol optimized for voice data transmission (telephone calls) through a
packet-switched IP network.
VoIP is a protocol that relies on IP networks to carry voice data.
Question:
Which of the following are considered VoIP endpoints?
Answer:
Hard phones and soft phones
Hard phones and soft phones are endpoints for VoIP since both can take calls
over Ethernet cable.
Question:
Larry is tasked with implementing a VoIP system in the
office. He presents his research to his boss, who wants to
use the current hard phones to save money. What BEST
explains why this is not possible?
Answer:
A hard phone does not have the internal computing parts to accept VoIP
transmissions.
VoIP requires a computer to work. VoIP hard phones are, in essence, computers
that understand network protocols
Question:
Amber, a network administrator, is conducting VoIP
training for other IT team members. Melanie, a new team
member, is confused about the difference between
latency and jitter. What is the BEST way to explain the
difference?
Answer: