Deck 14: Convergence of Voice, Video, and Data

Question 1

Voice over network (VON) encompasses VoIP, VoFR,VoATM,VoDSL, and Internet telephony.

Answer 1

True

Question 2

Fax over IP uses packet-switched networks to transmit faxes from one node on the network to another.

Answer 2

True

Question 3

A computer programmed to act like an IP telephone is known as a softswitch.

Answer 3

False

Question 4

Call management refers to the group of functions accessed by network managers to monitor telephone traffic, customize calling features and restrictions by line, specify call routes, and analyze calling patterns.

Question 5

Gateways used on converged networks may also be called media gateways.

Question 6

The process of issuing real-time video signals from a server to a client is also known as videoconferencing.

Question 7

Video streaming is the real-time transmission of images and audio between two locations.

Question 8

To participate in a videoconference over the network, each user requires a video terminal.

Question 9

A toll bypass is a computer or group of computers that manages packet-based traffic routing and control.

Question 10

An IP telephone was designed for use on VoIP networks.

Question 11

When a frame-relay network is used to transport packetized voice signals, the service is called voice over frame relay. _________________________

Question 12

Fax over IP uses packet-switched networks to transmit faxes from one node on the network to another. _________________________

Question 13

Digital PBX is a service that makes several forms of communication available from a single user interface. _________________________

Question 14

Completing calls over a packet-switched network allows an organization to avoid paying long distance telephone charges, a function known as toll bypass. _________________________

Question 15

A computer programmed to act like an IP telephone is known as a(n) softswitch. _________________________

Question 16

A(n) fax gateway can emulate and interpret conventional fax signaling protocols when communicating with a conventional fax machine. _________________________

Question 17

The process of issuing real-time video signals from a server to a client is also known as videoconferencing. _________________________

Question 18

To participate in a videoconference over the network, each user requires a(n) video terminal. _________________________

Question 19

Gateways used on converged networks may also be called fax gateways. _________________________

Question 20

Packets are delivered according to best effort. _________________________

Question 21

Which of the following is characteristic of a packet-based transmission in which the network attempts to deliver packets in a timely fashion, and in the proper sequence, but does not guarantee either?

A) Differentiated service
B) G.729
C) MEGACO
D) Best effort

Question 22

Which of the following refers to the group of functions supplied by a PBX, including monitoring telephone traffic?

A) Call management
B) Digital PBX
C) Fax gateway
D) Media gateway

Question 23

Which of the following is a voice-encoding technique in which the codec samples the actual voice signal at regular intervals in an attempt to predict the value of signal bits that have not yet arrived?

A) Diffserv
B) DPCM
C) DSP
D) EF

Question 24

Which of the following is a PBX that is capable of accepting and interpreting digital signals?

A) DSP
B) Diffserv
C) digital PBX
D) NGN

Question 25

Which of the following is a computer chip that codes and decodes voice signals?

A) Digital signal processor
B) IP telephone
C) Hybrid codec
D) Media gateway

Question 26

A gateway that can translate IP fax data into analog fax data, and vice versa, is referred to as?

A) FoIP
B) Fax gateway
C) Media gateway
D) digital PBX

Question 27

Which of the following is a service that transmits faxes over a TCP/IP network?

A) G.711
B) FoIP
C) MCU
D) RTP

Question 28

Which of the following is an ITU standard that specifies the type of pulse code modulation voice encoding used on the PSTN?

A) G.723
B) G.726
C) G.711
D) G.728

Question 29

Which of the following is a voice encoding and decoding method that borrows techniques from both waveform codecs and vocoders?

A) Hybrid codec
B) Media gateway
C) Softswitch
D) None of the above

Question 30

Which of the following is an ITU standard that specifies voice encoding through adaptive differential pulse code modulation?

A) G.723
B) G.726
C) G.728
D) G.729

Question 31

Which of the following is a private switch that accepts and interprets digital voice signals?

A) IP fax machine
B) Media gateway
C) IP-PBX
D) MEGACO

Question 32

Which of the following was designed for use on VoIP telephone networks?

A) IP-PBX
B) Fax gateway
C) Multipoint control unit
D) IP telephone

Question 33

A gateway that is capable of accepting connections from multiple devices, is known as:

A) Media gateway
B) Fax gateway
C) Next generation network
D) Media gateway controller

Question 34

Which of the following is a computer that manages multiple gateways and facilitates the exchange of call information?

A) Media gateway
B) MEGACO
C) Media gateway controller
D) MCU

Question 35

Which of the following is a protocol used for communication between media gateway controllers and media gateways?

A) MCU
B) MGCP
C) MPLS
D) NGN

Question 36

Which of the following is responsible for controlling a session between two nodes?

A) G.726
B) G.729
C) H.225
D) H.245

Question 37

Which of the following is a protocol used between media gateway and controllers and media gateways?

A) MEGACO
B) RTP
C) MGCP
D) RSVP

Question 38

Which of the following is a device that allows multiple video terminals to receive the same audio-video signals?

A) MGCP
B) Multipoint control unit
C) MPLS
D) Media gateway

Question 39

Which of the following is a method of forwarding packets from one router to the next according to priority?

A) Next generation network
B) Multipoint control unit
C) IP-PBX
D) Multi-protocol Label Switching

Question 40

Which of the following is a network that provides voice, video, and data services over the same infrastructure?

A) RTP
B) NGN
C) IP-PBX
D) RSVP

Question 41

Which of the following is a Transport-layer protocol used with voice and video transmission?

A) Real-Time Transport Protocol
B) Media Gateway Control Protocol
C) Resource Reservation Protocol
D) None of the above

Question 42

Which of the following is a technique that attempts to reserve a specific amount of network resources for a transmission before it occurs?

A) Session Initiation Protocol
B) Media Gateway Control Protocol
C) Resource Reservation Protocol
D) Real-Time Transport Protocol

Question 43

Which of the following is a computer that has been programmed to act like an IP telephone?

A) Softswitch
B) Toll bypass
C) Softphone
D) None of the above

Question 44

Which of the following is a computer or group of computers that manages packet-based traffic routing control?

A) Softswitch
B) T.37
C) Softphone
D) Toll bypass

Question 45

Which of the following allows faxes to be attached to e-mail messages as TIFF files?

A) T.36
B) T.37
C) T.38
D) T.39

Question 46

Which of the following converts faxes to packets, and retransmits them to a sending fax gateway?

A) T.37
B) T.38
C) T.39
D) T.40

Question 47

Which of the following is a cost-savings benefit that results from organizations completing long distance telephone calls over their packet-switched networks?

A) Toll bypass
B) T.38
C) T.37
D) Softswitch

Question 48

Which of the following is a service that brings several communication services together in a single user interface?

A) digitalPBX
B) Call management
C) Unified messaging
D) Best effort

Question 49

Which of the following is the act of issuing video signals from a server to a client in real time?

A) Video terminal
B) Unified messaging
C) Video streaming
D) Video bridge

Question 50

Which of the following describes the real-time transmission of images and audio between two locations?

A) Video streaming
B) Vocoder
C) Unified messaging
D) Videoconferencing

Question 51

Which of the following is a service that uses the ATM network access method to transmit voice signals over a network?

A) VoIP
B) FoIP
C) VoATM
D) VoDSL

Question 52

Which of the following is a service that relies on a DSL connection to transmit packetized voice signals?

A) VoIP
B) VoATM
C) VoDSL
D) VoFR

Question 53

Which of the following refers to a service that relies on a frame relay connection to transmit packetized voice signals?

A) VoIP
B) VoATM
C) VON
D) VoFR

Question 54

Which of the following is a general term that refers to the transmission of voice signals over a packet-switched network?

A) VoFR
B) VoATM
C) VON
D) VoDSL

Question 55

Which of the following is a voice encoding and decoding technique that applies sophisticated mathematical models to voice samples?

A) Waveform codec
B) Video bridge
C) Vocoder
D) VON

Question 56

Does FoIP use packet-switched networks to transmit faxes from one node on the network to another?

Question 57

Does the term call management refer to the group of functions accessed by network managers to monitor telephone traffic, customize calling features and restrictions by line, specify call routes, and analyze calling patterns?

Question 58

Does the term softswitch refer to a computer that is programmed to act like an IP telephone?

Question 59

Does the term videoconferencing refer to the real-time transmission of images and audio between two locations?

Question 60

Does the term G.723 refer to an ITU standard that specifies the type of pulse code modulation voice encoding used on PSTN?

Question 61

Does the term softphone refer to a computer or group of computers that manages packet-based traffic routing and control?

Question 62

Is toll bypass a cost-savings benefit that results from organizations completing long distance telephone calls over their packet-switched networks?

Question 63

Does the term T.37 refer to an ITU standard that specifies a real-time method of transmitting faxes from one node to another?

Question 64

Does the term video streaming refer to the act of issuing video signals from a server to a client in real time?

Question 65

Does the term hybrid codec refer to a voice encoding and decoding method that borrows techniques from both waveform codecs and vocoders?

Question 66

G.711 is known as a(n) ____________________ because it obtains information from the analog waveform, and then uses this information to reassemble the waveform as accurately as possible at the receiving end.

Question 67

____________________ means that the network attempts to deliver packets in a timely fashion and in the proper sequence, but does not guarantee either.

Question 68

A(n) ____________________ is a computer that manages multiple media gateways.

Question 69

____________________ refers to the group of functions accessed by network managers to monitor telephone traffic, customize calling features and restrictions by line, specify call routes, and analyze calling patterns.

Question 70

Gateways used on converged networks may also be called ____________________.

Question 71

A computer programmed to act like an IP telephone is known as a(n) ____________________.

Question 72

____________________ is the real-time transmission of images and audio between two locations.

Question 73

The process of issuing real-time video signals from a server to a client is also known as ____________________

Question 74

To participate in a videoconference over the network, each user requires a(n) ____________________.

Question 75

____________________ is a service that makes several forms of communication available from a single user interface.

Question 76

Match each statement below with the correct item

-A characteristic of packet-based transmission in which the network attempts to deliver packets in a timely fashion and in the proper sequence, but does not guarantee either.

A)Hybrid codec
B)Call management
C)IP telephone
D)Softswitch
E)FoIP
F)Best effort
G)Softphone
H)Toll bypass
I)Media gateway
J)G.711

Question 77

Match each statement below with the correct item

-The group of functions supplied by a PBX that include monitoring telephone traffic and customizing calling features

A)Hybrid codec
B)Call management
C)IP telephone
D)Softswitch
E)FoIP
F)Best effort
G)Softphone
H)Toll bypass
I)Media gateway
J)G.711

Question 78

Match each statement below with the correct item

-A service that transmits faxes over a TCP/IP network.

A)Hybrid codec
B)Call management
C)IP telephone
D)Softswitch
E)FoIP
F)Best effort
G)Softphone
H)Toll bypass
I)Media gateway
J)G.711

Question 79

Match each statement below with the correct item

-An ITU standard that specifies the type of pulse code modulation voice encoding used on the PSTN.

A)Hybrid codec
B)Call management
C)IP telephone
D)Softswitch
E)FoIP
F)Best effort
G)Softphone
H)Toll bypass
I)Media gateway
J)G.711

Question 80

Match each statement below with the correct item

-A voice encoding and decoding method that borrows techniques from both waveform codecs and vocoders.

A)Hybrid codec
B)Call management
C)IP telephone
D)Softswitch
E)FoIP
F)Best effort
G)Softphone
H)Toll bypass
I)Media gateway
J)G.711