Network+ 8th Edition Chapter 12 Questions with Verified Answers
(Correct Update)
Question 1: 1. A fractional T1's bandwidth can be leased multiples of what data rate?
a. 28 Kbps
b. 32 Kbps
c. 48 Kbps
d. 64 Kbps
Answer: d. 64 Kbps
Question 2: 2. What OC level is primarily used as a regional ISP backbone and occasionally by
very large hospitals universities or other major enterprises?
a. OC-3
b. OC-12
c. OC-48
d. OC-96
Answer: c. OC-48
Question 3: 3. On an ATM network how is the path that data will take determined?
a. Switches determine the optimal path between sender and receiver, and then establish the path
before transmission.
b. Data is transmitted, and then the path taken will vary depending on the load encountered at
each ATM participant node.
c. A frame relay route table establishes each hop that will be taken to a single destination.
d. When data is ready to be transmitted, an ATM participating router will contact the
destination ATM router, establish a tunnel, then pass the data.
Answer: a. Switches determine the optimal path between sender and receiver, and then establish the
path before transmission.
Question 4: 4. Multiplexing enables a single T1 circuit to carry how many channels?
a. 1
b. 12
c. 24
d. 64
Answer: c. 24
Page 1
, Question 5: 5. In North America what ISDN connection type used two B channels and one D
channel?
a. Basic Rate Interface (BRI)
b. Primary Rate Interface (PRI)
c. Bearer Rate Interface (BRI)
d. Dedicated Rate Interface (DRI)
Answer: a. Basic Rate Interface (BRI)
Question 6: 7. With a SIP trunk what is the only limitation on the number of calls that can run
at any one time?
a. The maximum number of channels available on the transmission medium.
b. The total number of time division slots allocated to the SIP client organization.
c. The total number of SIP bearer channels provisioned on the SIP switch.
d. The amount of available bandwidth.
Answer: d. The amount of available bandwidth.
Question 7: 8. Which SONET OC level is a popular choice for large businesses and is equivalent
to 100 T1s?
a. OC-1
b. OC-3
c. OC-12
d. OC-24
Answer: b. OC-3
Question 8: 9. Considering that multiple users occupy the same channel when using CDMA how
are various calls using this technology kept separate?
a. The packets are coded such that individual calls can be distinguished.
b. The packets include the end user's SIM IMEI in each packet.
c. The sending and receiving of data is performed on different frequencies. Users hop between
these frequencies to avoid interference.
d. The transmissions are encrypted such that only the appropriate device can decrypt its own
call.
Answer: a. The packets are coded such that individual calls can be distinguished.
Question 9: 10. The T-carrier standards also called T-CXR standards utilize what type of
multiplexing over two wire pairs to create multiple channels?
a. wavelength division multiplexing (WDM)
b. frequency division multiplexing (FDM)
c. orthogonal frequency division multiplexing (OFDM)
d. time division multiplexing (TDM)
Answer: d. time division multiplexing (TDM)
Page 2
(Correct Update)
Question 1: 1. A fractional T1's bandwidth can be leased multiples of what data rate?
a. 28 Kbps
b. 32 Kbps
c. 48 Kbps
d. 64 Kbps
Answer: d. 64 Kbps
Question 2: 2. What OC level is primarily used as a regional ISP backbone and occasionally by
very large hospitals universities or other major enterprises?
a. OC-3
b. OC-12
c. OC-48
d. OC-96
Answer: c. OC-48
Question 3: 3. On an ATM network how is the path that data will take determined?
a. Switches determine the optimal path between sender and receiver, and then establish the path
before transmission.
b. Data is transmitted, and then the path taken will vary depending on the load encountered at
each ATM participant node.
c. A frame relay route table establishes each hop that will be taken to a single destination.
d. When data is ready to be transmitted, an ATM participating router will contact the
destination ATM router, establish a tunnel, then pass the data.
Answer: a. Switches determine the optimal path between sender and receiver, and then establish the
path before transmission.
Question 4: 4. Multiplexing enables a single T1 circuit to carry how many channels?
a. 1
b. 12
c. 24
d. 64
Answer: c. 24
Page 1
, Question 5: 5. In North America what ISDN connection type used two B channels and one D
channel?
a. Basic Rate Interface (BRI)
b. Primary Rate Interface (PRI)
c. Bearer Rate Interface (BRI)
d. Dedicated Rate Interface (DRI)
Answer: a. Basic Rate Interface (BRI)
Question 6: 7. With a SIP trunk what is the only limitation on the number of calls that can run
at any one time?
a. The maximum number of channels available on the transmission medium.
b. The total number of time division slots allocated to the SIP client organization.
c. The total number of SIP bearer channels provisioned on the SIP switch.
d. The amount of available bandwidth.
Answer: d. The amount of available bandwidth.
Question 7: 8. Which SONET OC level is a popular choice for large businesses and is equivalent
to 100 T1s?
a. OC-1
b. OC-3
c. OC-12
d. OC-24
Answer: b. OC-3
Question 8: 9. Considering that multiple users occupy the same channel when using CDMA how
are various calls using this technology kept separate?
a. The packets are coded such that individual calls can be distinguished.
b. The packets include the end user's SIM IMEI in each packet.
c. The sending and receiving of data is performed on different frequencies. Users hop between
these frequencies to avoid interference.
d. The transmissions are encrypted such that only the appropriate device can decrypt its own
call.
Answer: a. The packets are coded such that individual calls can be distinguished.
Question 9: 10. The T-carrier standards also called T-CXR standards utilize what type of
multiplexing over two wire pairs to create multiple channels?
a. wavelength division multiplexing (WDM)
b. frequency division multiplexing (FDM)
c. orthogonal frequency division multiplexing (OFDM)
d. time division multiplexing (TDM)
Answer: d. time division multiplexing (TDM)
Page 2
