Deck 28: Emerging Technologies

Question 1

A call server:

A) holds customer information
B) refines services
C) interfaces with switching gateways
D) may be placed in one central location and feed multiple regions
E) all of the above

Answer 1

all of the above

Question 2

SS-7 is used in the circuit-switched world, and MegaCo or ________ is used in the packet/cell world.

Answer 2

MGCP

Question 3

The digital circuit switch will begin to be replaced by the new distributed-packet/cell-based distributed switch architecture in the next two years.

Answer 3

True

Question 4

All of the following are advantages of packet-based architecture except:

A) bandwidth savings
B)much more scalable
C) less expensive on a per port basis
D) none of the above (all are advantages)

Question 5

The MegaCo signaling protocol offers which advantage?

A) calls no longer need to go back to the class 5 switch in order to be switched through the network
B) more calls are allowed to travel across the same number of facilities
C) data can ride on the same network as the voice in a similar format, either packet or cell
D) all of the above

Question 6

The advantage of silence ________ is that it frees up bandwidth and allows more conversations to share the same pipe than if a time slot were nailed up as it is with TDM.

Question 7

The soft switch is similar to the next generation architecture in all of the following ways except:

A)it is based on a packet network design
B) its purpose is to combine voice and data routing in one device
C) it was built to replace the class 5 switch
D) none of the above (it is similar in all three ways)

Question 8

Soft switches provide a much more economical way to route Internet traffic through the network by bypassing the class 4 and 5 switches.

Question 9

The optical multiplexer and the router are similar in that the signal has to be converted into an electrical signal before the packet is cracked.

Question 10

The digital ________ is a protocol used to encapsulate all protocols onto an optical pipe, eliminating the need to access the electrical signal.

Question 11

________ label switching is a new protocol used to simplify routing packets through the network by attaching a label that defines the destination address of the packet to each packet.

Question 12

With asynchronous digital subscriber line (ADSL), the upstream speed is actually higher than that of the downstream speed.

Question 13

Voice over DSL (VoDSL) is one of the hottest products being deployed today because it allows multiple telephone terminations on one DSL line in addition to allowing data to travel on that same local loop.

Question 14

________, the newly defined portion of the IP packet used to prioritize traffic, is the reason that some analysts are saying IP will win out as the transport technology of the future.

Question 15

Wireless LANs use ________ frequencies to carry traffic through the building and around the floor.

Question 16

The advantage of using laser technology is the greater amount of bandwidth available and, most important, the free ________ available.

Question 17

Explain what is meant by a converged voice and data network.

Question 18

What value does DWDM provide to the network engineer?

Question 19

List two DSL line codes and explain how they differ.

Question 20

List one of the issues facing VoIP services.

Question 21

BPL stands for Broadband over Powerline.

Question 22

The protocol used in the BPL network is called the ________ protocol.