Question 1

It is more difficult to transmit VoIP and video over IP signals over a packet-switched network than it is to transmit data signals.

Accepted Answer

VoIP and video signals require real-time transmission and may experience delays or lost packets if the network is congested or has high latency, which can affect call quality and video resolution. Data signals, on the other hand, are typically less time-sensitive and can tolerate delays and retransmissions without significant impact on performance. Therefore, it is more challenging to ensure reliable and high-quality transmission of VoIP and video signals over a packet-switched network, such as the internet, compared to data signals.

Question 2

One drawback to ____ video is that content may not be edited before it's distributed.&#10;A) on demand&#10;B) live streaming&#10;C) streaming server&#10;D) VoIP

Accepted Answer

Live streaming video is broadcast in real-time and cannot be edited before it's distributed, unlike on-demand video which can be edited and pre-recorded. Streaming server and VoIP are not relevant to the given drawback.

Question 3

SIP and H.323 account for communication between media gateways.

Accepted Answer

SIP and H.323 are protocols used for signaling and controlling multimedia communication sessions, not specifically for communication between media gateways. Media gateways typically use protocols like MGCP or H.248 for communication.

Question 4

A computer programmed to act like an IP telephone is known as a(n) ____.&#10;A) video phone&#10;B) softphone&#10;C) streaming server&#10;D) compu-phone

Accepted Answer

A computer programmed to act like an IP telephone is known as a softphone. A softphone is a software program that allows a computer to behave like an IP telephone, using a microphone and speakers or a headset plugged into the computer to make and receive phone calls over the internet. Options A, C, and D are not correct as they do not refer to a computer program designed to act like an IP telephone.

Question 5

All VoIP calls are carried over the Internet.

Accepted Answer

VoIP calls can be carried over both the Internet and private networks, not exclusively over the Internet.

Question 6

Using VoIP over a WAN allows an organization to avoid paying long-distance telephone charges, a benefit known as ____.&#10;A) charge bypass&#10;B) distance bypass&#10;C) toll bypass&#10;D) easypass

Accepted Answer

VoIP over a WAN allows an organization to avoid paying long-distance telephone charges, which is commonly known as toll bypass.

Question 7

When using an analog telephone, a VoIP adapter that performs analog-to-digital conversion is known as a(n) ____.&#10;A) VTA (voice telephone adapter)&#10;B) ATA (analog telephone adapter)&#10;C) DTA (digital telephone adapter)&#10;D) DTA (data telephone adapter)

Accepted Answer

An ATA (analog telephone adapter) is a device that converts analog voice signals into digital packets that can be transmitted over the internet. It allows users to connect analog telephones to a VoIP network, making it possible to make and receive VoIP calls using traditional landline phones. A VTA and DTA are not commonly used terms in the industry, and a Data Telephone Adapter would refer to a device that allows for the transmission of data signals over a telephone line.

Question 8

When a caller uses an IP telephone, his or her voice is immediately digitized and issued from the telephone to the network in ____ form.&#10;A) segment&#10;B) frame&#10;C) circuit&#10;D) packet

Accepted Answer

When a caller uses an IP telephone, his or her voice is broken down into smaller data packets and transmitted over the network. Therefore, the voice is issued from the telephone to the network in packet form.

Question 9

When VoIP relies on the Internet, it is often called ____.&#10;A) telephony&#10;B) Internet telephony&#10;C) IP telephony&#10;D) voice telephony

Accepted Answer

VoIP that relies on the Internet is commonly referred to as Internet telephony, as it uses the Internet to transmit voice data.

Question 10

When more than two people participate in a videoconference, for example, in a point-to-multipoint or multipoint-to-multipoint scenario, a video ____ is required.&#10;A) bridge&#10;B) switch&#10;C) gateway&#10;D) router

Accepted Answer

A video bridge is specifically designed to handle video conferencing between multiple endpoints. It acts as a centralized hub to manage the transmission and reception of multiple video streams, enabling participants to communicate with each other. Switches, gateways, and routers are network devices that provide connectivity and routing for data packets, but they are not specialized for video conferencing.

Question 11

____ describes the use of any network to carry voice signals using the TCP/IP protocol.&#10;A) Telephony&#10;B) Internet telephony&#10;C) IP telephony&#10;D) Voice telephony

Accepted Answer

The answer of ____ describes the use of any network...

Question 12

Among all video-over-IP applications, ____is perhaps the simplest.&#10;A) VoIP&#10;B) videoconferencing&#10;C) IPTV&#10;D) streaming video

Accepted Answer

The answer of Among all video-over-IP applications, ____is perhaps the...

Question 13

In general, a(n) ____ is a private switch that accepts and interprets both analog and digital voice signals.&#10;A) IP-PBX&#10;B) analog PBX&#10;C) Data PBX&#10;D) IT-PBX

Accepted Answer

The answer of In general, a(n) ____ is a private...

Question 14

IPTV, videoconferencing, streaming video, and IP multicasting belong to the range of services known as ____.&#10;A) voice over IP&#10;B) data over IP&#10;C) video over IP&#10;D) Web over IP

Accepted Answer

The answer of IPTV, videoconferencing, streaming video, and IP multicasting...

Question 15

____ is the use of one network to simultaneously carry voice, video, and data communications.&#10;A) Multicasting&#10;B) Unicasting&#10;C) Divergence&#10;D) Convergence

Accepted Answer

The answer of ____ is the use of one network...

Question 16

The popular Internet telephony software, Skype, is a type of ____.&#10;A) IP telephone&#10;B) softphone&#10;C) teleapplication&#10;D) compu-phone

Accepted Answer

The answer of The popular Internet telephony software, Skype, is...

Question 17

____ messaging is a service that makes several forms of communication available from a single user interface.&#10;A) Unified&#10;B) Instant&#10;C) Diversified&#10;D) Open

Accepted Answer

The answer of ____ messaging is a service that makes...

Question 18

Many streaming video services - and nearly all of those issued over a public network, such as the Internet - are examples of ____ transmissions.&#10;A) multicast&#10;B) broadcast&#10;C) unicast&#10;D) telecast

Accepted Answer

The answer of Many streaming video services - and nearly...

Question 19

IP telephones are directly connected to the local loop.

Accepted Answer

The answer of IP telephones are directly connected to the...

Question 20

An off-the-shelf workstation can be programmed to act like an IP telephone.

Accepted Answer

The answer of An off-the-shelf workstation can be programmed to...

Question 21

Explain why MGCs are especially advantageous on large VoIP networks.

Accepted Answer

The answer of Explain why MGCs are especially advantageous on...

Question 22

____ is preferred over TCP for real-time applications such as telephone conversations and videoconferencing.&#10;A) RTP&#10;B) UDP&#10;C) RTCP&#10;D) SIP

Accepted Answer

The answer of ____ is preferred over TCP for real-time...

Question 23

____ is a measure of how well a network service matches its expected performance.&#10;A) QoS&#10;B) RSVP&#10;C) DiffServ&#10;D) MPLS

Accepted Answer

The answer of ____ is a measure of how well...

Question 24

When streaming videos are supplied via the Web, they are often called ____________________.

Accepted Answer

The answer of When streaming videos are supplied via the...

Question 25

Explain the issue that IP telephones face regarding the need for electric current .

Accepted Answer

The answer of Explain the issue that IP telephones face...

Question 26

Some VoIP vendors prefer ____________________ over H.323.

Accepted Answer

The answer of Some VoIP vendors prefer ____________________ over H.323....

Question 27

____________________ performs the same functions as MGCP, but using different commands and processes.

Accepted Answer

The answer of ____________________ performs the same functions as MGCP,...

Question 28

____________________ is a QoS technique that replaces the IP datagram header with a label at the first router a data stream encounters.

Accepted Answer

The answer of ____________________ is a QoS technique that replaces...

Question 29

Aside from extreme mobility, describe another advantage to softphones.

Accepted Answer

The answer of Aside from extreme mobility, describe another advantage...

Question 30

Describe IP telephones and how they are connected to a network.

Accepted Answer

The answer of Describe IP telephones and how they are...

Question 31

____ signaling functions are more limited than those performed by the protocols in the H.323 group.&#10;A) RTCP&#10;B) MGC&#10;C) MEGACO&#10;D) SIP

Accepted Answer

The answer of ____ signaling functions are more limited than...

Question 32

Describe five capabilities to which SIP is limited.

Accepted Answer

The answer of Describe five capabilities to which SIP is...

Question 33

Explain how gateways on a converged network exchange and translate signaling and control information with each other so that voice and video packets are properly routed through the network.

Accepted Answer

The answer of Explain how gateways on a converged network...

Question 34

Describe six functions performed by signaling protocols.

Accepted Answer

The answer of Describe six functions performed by signaling protocols....

Question 35

SIP and H.323 regulate ____ for VoIP or video-over-IP clients and servers.&#10;A) call signaling only&#10;B) control only&#10;C) call signaling and control&#10;D) communication between media gateways

Accepted Answer

The answer of SIP and H.323 regulate ____ for VoIP...

Question 36

Many network engineers consider ____ to be superior to MGCP.&#10;A) SIP&#10;B) RTCP&#10;C) MEGACO&#10;D) MGC

Accepted Answer

The answer of Many network engineers consider ____ to be...

Question 37

How does implementing VoIP assist in centralizing voice and data network management?

Accepted Answer

The answer of How does implementing VoIP assist in centralizing...

Question 38

A(n) ____ is a computer that manages multiple media gateways.&#10;A) MPLS&#10;B) MGCP&#10;C) MEGACO&#10;D) MGC

Accepted Answer

The answer of A(n) ____ is a computer that manages...

Question 39

____________________ is a simple technique that addresses QoS issues by prioritizing traffic.

Accepted Answer

The answer of ____________________ is a simple technique that addresses...

Question 40

Explain why UDP is preferred over TCP for real-time applications such as telephone conversations and videoconferences.

Accepted Answer

The answer of Explain why UDP is preferred over TCP...

Question 41

Describe the RTCP (Real-time Transport Control Protocol), as defined in RFC 3550 by the IETF.

Accepted Answer

The answer of Describe the RTCP (Real-time Transport Control Protocol),...

Question 42

Match between columns&#10;                        Premises: Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.&#10;Any node that provides audio, visual, or data information to another node.&#10;Any node that provides audio, visual, or data information to another node.&#10;Any node that provides audio, visual, or data information to another node.&#10;Any node that provides audio, visual, or data information to another node.&#10;Any node that provides audio, visual, or data information to another node.&#10;Any node that provides audio, visual, or data information to another node.&#10;Any node that provides audio, visual, or data information to another node.&#10;Any node that provides audio, visual, or data information to another node.&#10;Any node that provides audio, visual, or data information to another node.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;A collection of H.323 terminals, gateways, and MCUs that are managed by a single H.323 gatekeeper.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;Helps voice and video networks overcome UDP's shortcomings.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;A computer that provides support for multiple H.323 terminals and manages communication between them.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;Ensures that the type of information issued to an H.323 terminal is formatted in a way that the H.323 terminal can interpret.&#10;The nerve center for networks that adhere to H.323.&#10;The nerve center for networks that adhere to H.323.&#10;The nerve center for networks that adhere to H.323.&#10;The nerve center for networks that adhere to H.323.&#10;The nerve center for networks that adhere to H.323.&#10;The nerve center for networks that adhere to H.323.&#10;The nerve center for networks that adhere to H.323.&#10;The nerve center for networks that adhere to H.323.&#10;The nerve center for networks that adhere to H.323.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;A device providing translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols.&#10;The H.323 protocol that handles call or videoconference signaling.&#10;The H.323 protocol that handles call or videoconference signaling.&#10;The H.323 protocol that handles call or videoconference signaling.&#10;The H.323 protocol that handles call or videoconference signaling.&#10;The H.323 protocol that handles call or videoconference signaling.&#10;The H.323 protocol that handles call or videoconference signaling.&#10;The H.323 protocol that handles call or videoconference signaling.&#10;The H.323 protocol that handles call or videoconference signaling.&#10;The H.323 protocol that handles call or videoconference signaling.

Accepted Answer

The Answer of H.323 zone and H.323 gateway and RTP is...

Deck 12: Voice and Video Over IP