Question 1

Matching
Match each correct item with the statement below.
-A WAN technology that sends Ethernettraffic across MAN connections.

Accepted Answer

Metro Ethernet is a WAN technology that uses Ethernet to send data across MAN (Metropolitan Area Network) connections.

Answer: A 
 ATM (Asynchronous Transfer Mode) is a WAN technology that uses cells to transmit data and can support multiple types of traffic, including Ethernet.

Answer: H 
 A ring topology WAN uses a ring or loop network topology to connect multiple nodes in a WAN.

Answer: D 
 A DSLAM (DSL access multiplexer) is a device that connects multiple DSL subscribers to an Internet service provider (ISP) and aggregates their traffic onto a high-speed backbone network.

Answer: I 
 A smart jack is a device used in telecommunications networks to provide testing and monitoring capabilities for the local loop or last-mile connection between the customer premises and the service provider's equipment.

Note: B, C, E, F, and J are not related to the given statement.

Question 2

Matching
Match each correct item with the statement below.
-A connectivity devicelocated at a telecommunications carrier's office that aggregatesmultiple DSL subscriber lines and connects them to alarger carrier or to the Internet backbone.

Accepted Answer

DSLAM (DSL access multiplexer) is a connectivity device located at a telecommunications carrier's office that aggregates multiple DSL subscriber lines and connects them to a larger carrier or to the Internet backbone.

Answer: G
 Metro Ethernet is a type of Ethernet technology used to connect different locations within a metropolitan area. It provides high-speed and reliable data connectivity for businesses.

Answer: I
 Smart jack is a device used by telecommunications companies to troubleshoot and diagnose problems with a customer's telephone or data line. It provides a connection point for testing and monitoring the line.

Answer: J
 A transponder is a device that receives signals from one location and retransmits them to another location. It is commonly used in satellite communications to relay signals from Earth to a satellite in geostationary orbit.

Question 3

Matching
Match each correct item with the statement below.
-The guaranteedminimum amount of bandwidth selected when leasing aframe relay circuit.Frame relay costs are partially basedon this.

Accepted Answer

The guaranteed minimum amount of bandwidth selected when leasing a frame relay circuit is called CIR (committed information rate).

Answer: G
 Metro Ethernet is a high-speed networking standard used for connecting LANs (local area networks) in a metropolitan area. It is commonly used by businesses and organizations to connect their branch offices or data centers within a city.

Answer: I
 A smart jack is a device used by telecommunications companies to establish a connection between a customer's location and the provider's network. It is typically used in T1 lines and serves as both a signal regenerator and a diagnostic tool for troubleshooting connectivity issues.

Note: The other options (A, B, D, E, F, and J) are not relevant to the given statement.

Question 4

Matching
Match each correct item with the statement below.
-An intelligent type of NIU located at the customer'sdemarc that can provide diagnostic information aboutthe interface.

Accepted Answer

A smart jack is an intelligent type of NIU (network interface unit) located at the customer's demarc (demarcation point) that can provide diagnostic information about the interface.

Note: None of the other options match this statement.

Question 5

Matching
Match each correct item with the statement below.
-A special case of geosynchronous orbitin which the satellite stays directly above the equator andappears stationary from Earth.Thesesatellitesare the type used to provide satellite Internet access.

Accepted Answer

Geostationary orbit is the special case of orbit that describes the satellite staying directly above the equator and appearing stationary from Earth. These satellites are used to provide satellite Internet access.

Answer: J
 A transponder is a device that receives a signal on one frequency and then transmits it on another frequency. It is often used in satellite communication systems to amplify and retransmit signals back to Earth.

Question 6

Matching
Match each correct item with the statement below.
-A 4G cellular network technologythat,in its latest version (called LTE-Advanced),achievesdownlink data rates of up to 3 Gbps and uplink rates of up to1.5 Gbps.AT&T and Verizon have adopted LTE for theirhigh-speed wireless data networks.

Accepted Answer

LTE (Long Term Evolution) is the 4G cellular network technology that achieves high-speed data rates and has been adopted by AT&T and Verizon.

Answer: E
 Geostationary orbit refers to the orbit of a satellite that stays in the same position relative to the Earth's surface, commonly used for communication satellites.

Answer: G
 Metro Ethernet is a type of Ethernet technology used for metropolitan area networks (MANs), providing high-speed connectivity.

Answer: D
 DSLAM (DSL access multiplexer) is a network device used to connect multiple DSL subscribers to the Internet and aggregates their traffic.

Answer: I
 A smart jack is a network interface device used to connect a customer's equipment to a telecommunication service provider's network.

Note: The other options (A, B, C, H, J) do not match the statements provided.

Question 7

Matching
Match each correct item with the statement below.
-A WAN technologyfunctioning primarily at Layer 2 (although its protocols canalso reach Layers 1 and 3)that was originally conceived inthe early 1980s at Bell Labs and standardized by the ITU inthe mid-1990s.

Accepted Answer

The technology described in the statement is ATM (Asynchronous Transfer Mode).

Answer: G
 The statement does not provide enough information to determine a specific technology, but metro Ethernet is a common WAN technology that operates at Layer 2 and can reach Layers 1 and 3.

Answer: H
 The statement describes a ring topology WAN, but does not provide information about a specific technology.

Answer: I
 A smart jack is a device used to monitor and troubleshoot WAN connections, but is not a specific WAN technology.

Answer: J
 A transponder is a device used for signal amplification and conversion in telecommunications, but is not a specific WAN technology.

The other options, B (BRI), C (CIR), D (DSLAM), and E (geostationary orbit) are not described or relevant to the information provided in the statement.

Question 8

Matching
Match each correct item with the statement below.
-A variety of ISDN that uses two64-Kbps bearer channels and one 16-Kbps data channel,assummarized by the notation 2BþD.

Accepted Answer

BRI (Basic Rate Interface) is a variety of ISDN that uses two 64-Kbps bearer channels and one 16-Kbps data channel, as summarized by the notation 2B+D.

Answer: C
 CIR (committed information rate) is a specification that guarantees a certain level of bandwidth to a customer in a network.

Answer: D
 DSLAM (DSL access multiplexer) is a network device that aggregates multiple DSL subscriber lines into a single high-speed network connection.

Answer: F
 LTE (Long Term Evolution) is a technology used for 4G mobile communication networks that provide faster data rates and lower latency in comparison to 3G networks.

Answer: G
 Metro Ethernet is a type of Ethernet technology that is used to connect local area networks (LANs) in metropolitan areas.

Answer: H
 Ring topology WAN is a type of wide area network (WAN) topology in which the network consists of a ring of interconnected nodes.

Question 9

Matching
Match each correct item with the statement below.
-A type of WAN in which each site isconnected to two other sites so that the entire WAN forms a ring pattern.

Accepted Answer

The statement describes the ring topology WAN.

Answer: A
 ATM stands for Asynchronous Transfer Mode, which is a type of network technology used in WANs.

Answer: G
 Metro Ethernet is a type of network technology used in metropolitan area networks (MANs) that provides high-speed connections between multiple locations.

Note: The other options do not match the description provided in the statement.

Question 10

Matching
Match each correct item with the statement below.
-The equipment on a satellite that receives anuplinked signal from Earth,amplifies the signal,modifies itsfrequency,then retransmits it (in a downlink)to an antennaon Earth.

Accepted Answer

The equipment described in the statement is a transponder.

Note: None of the other choices match the description given.

Quiz 11: Wide Area Networks

Matching Match each correct item with the statement below. -A WAN technology that sends Ethernettraffic across MAN connections.

Matching Match each correct item with the statement below. -A connectivity devicelocated at a telecommunications carrier's office that aggregatesmultiple DSL subscriber lines and connects them to alarger carrier or to the Internet backbone.

Matching Match each correct item with the statement below. -The guaranteedminimum amount of bandwidth selected when leasing aframe relay circuit.Frame relay costs are partially basedon this.

Matching Match each correct item with the statement below. -An intelligent type of NIU located at the customer'sdemarc that can provide diagnostic information aboutthe interface.

Matching Match each correct item with the statement below. -A special case of geosynchronous orbitin which the satellite stays directly above the equator andappears stationary from Earth.Thesesatellitesare the type used to provide satellite Internet access.

Matching Match each correct item with the statement below. -A 4G cellular network technologythat,in its latest version (called LTE-Advanced) ,achievesdownlink data rates of up to 3 Gbps and uplink rates of up to1.5 Gbps.AT&T and Verizon have adopted LTE for theirhigh-speed wireless data networks.

Matching Match each correct item with the statement below. -A WAN technologyfunctioning primarily at Layer 2 (although its protocols canalso reach Layers 1 and 3) that was originally conceived inthe early 1980s at Bell Labs and standardized by the ITU inthe mid-1990s.

Matching Match each correct item with the statement below. -A variety of ISDN that uses two64-Kbps bearer channels and one 16-Kbps data channel,assummarized by the notation 2BþD.

Matching Match each correct item with the statement below. -A type of WAN in which each site isconnected to two other sites so that the entire WAN forms a ring pattern.

Matching Match each correct item with the statement below. -The equipment on a satellite that receives anuplinked signal from Earth,amplifies the signal,modifies itsfrequency,then retransmits it (in a downlink) to an antennaon Earth.