Question 1

Describe the fundamental properties WANs and LANs have in common.

Accepted Answer

WANs and LANs have several fundamental p

Question 2

At the customer's demarcation point, either inside or outside the building, RJ-48 connectors terminate in a ____.

Accepted Answer

A)  terminal adapter 
B)  smart jack 
C)  CSU/DSU 
D)  switch 
A)  terminal adapter 
B)  smart jack 
C)  CSU/DSU 
D)  switch

Question 3

Why is SONET technology typically not implemented by small or medium-size businesses?

Accepted Answer

SONET technology is typically

Question 4

The data rate of a particular SONET ring is indicated by its ____, a rating that is internationally recognized by networking professionals and standards organizations.

Accepted Answer

A)  OC (Optical Carrier) level 
B)  CIR (committed information rate) 
C)  BRI (Basic Rate Interface) 
D)  DS0 (digital signal, level 0) 
A)  OC (Optical Carrier) level 
B)  CIR (committed information rate) 
C)  BRI (Basic Rate Interface) 
D)  DS0 (digital signal, level 0)

Question 5

On most modern WANs, a ring topology relies on ____ rings to carry data.

Accepted Answer

A)  flexible 
B)  open 
C)  serial 
D)  redundant 
A)  flexible 
B)  open 
C)  serial 
D)  redundant

Question 6

ISDN PRI uses ____ B channels and one 64-Kbps D channel.

Accepted Answer

A)  10 
B)  12 
C)  23 
D)  32 
A)  10 
B)  12 
C)  23 
D)  32

Question 7

The portion of the PSTN that connects any residence or business to the nearest CO is known as the ____.

Accepted Answer

A)  demarcation point 
B)  NIU (Network Interface Unit) 
C)  local loop 
D)  central office 
A)  demarcation point 
B)  NIU (Network Interface Unit) 
C)  local loop 
D)  central office

Question 8

A ____ converts digital signals into analog signals for use with ISDN phones and other analog devices.

Accepted Answer

A)  terminal adapter 
B)  DSLAM 
C)  smart jack 
D)  terminator 
A)  terminal adapter 
B)  DSLAM 
C)  smart jack 
D)  terminator

Question 9

SONET's extraordinary ____ results from its use of a double-ring topology over fiber-optic cable.

Accepted Answer

A)  throughput 
B)  low cost 
C)  fault tolerance 
D)  latency 
A)  throughput 
B)  low cost 
C)  fault tolerance 
D)  latency

Question 10

Match between columns
                        Premises: Provides equal capacity for data traveling both upstream and downstream.
Occurs when each site is directly connected to no more than two other sites in a serial fashion.
Contain sites that are connected in star or ring formations are interconnected at different levels, with the interconnection points being organized into layers to form hierarchical groupings.
Incorporates many directly interconnected sites.
Occurs when data travels from the customer to the carrier's switching facility.
Occurs when downstream throughput is higher than upstream throughput.
Refers to the T-carrier's Physical layer electrical signaling characteristics as defined by ANSI standards in the early 1980s.
Occurs when data travels from the carrier's switching facility to the customer.
Contains a single site acting as the central connection point for several other points.

Accepted Answer

The Answer of tiered topology WAN and asymmetrical communications and is...

Question 11

What sets ATM apart from Ethernet is its ____ size.

Accepted Answer

A)  channel 
B)  frame 
C)  variable packet 
D)  fixed packet 
A)  channel 
B)  frame 
C)  variable packet 
D)  fixed packet

Question 12

Explain how ATM relies on virtual circuits.

Accepted Answer

Like X.25 and frame relay, ATM relies on

Question 13

A ____ aggregates multiple DSL subscriber lines and connects them to the carrier's CO.

Accepted Answer

A)  terminal adapter 
B)  DSLAM 
C)  smart jack 
D)  terminator 
A)  terminal adapter 
B)  DSLAM 
C)  smart jack 
D)  terminator

Question 14

Dial-up ISDN does not convert a computer's digital signals to analog before transmitting them over the PSTN.

Accepted Answer

A) True 
 B)False

Question 15

A(n) ____________________ combines individual SONET signals on the transmitting end, and another multiplexer separates combined signals on the receiving end.

Accepted Answer

The answer of A(n) ____________________ combines individual SONET signals on...

Question 16

After SONET, BPL has the best maximum throughput available.

Accepted Answer

A) True 
 B)False

Question 17

A ____ connection is one in which a user connects her computer, via a modem, to a distant network and stays connected for a finite period of time.

Accepted Answer

A)  remote 
B)  direct 
C)  dial-up 
D)  virtual 
A)  remote 
B)  direct 
C)  dial-up 
D)  virtual

Question 18

Define the term xDSL and name the better known DSL varieties.

Accepted Answer

The term xDSL refers to all DSL varietie

Question 19

In a process called ____, two 64-Kbps ISDN B channels can be combined to achieve an effective throughput of 128 Kbps.

Accepted Answer

A)  slicing 
B)  linking 
C)  merging 
D)  bonding 
A)  slicing 
B)  linking 
C)  merging 
D)  bonding

Question 20

A(n) ____ is the place where a telephone company terminates lines and switches calls between different locations.

Accepted Answer

A)  CO 
B)  EO 
C)  DO 
D)  TO 
A)  CO 
B)  EO 
C)  DO 
D)  TO

Describe the fundamental properties WANs and LANs have in common.

At the customer's demarcation point, either inside or outside the building, RJ-48 connectors terminate in a ____.

Why is SONET technology typically not implemented by small or medium-size businesses?

The data rate of a particular SONET ring is indicated by its ____, a rating that is internationally recognized by networking professionals and standards organizations.

On most modern WANs, a ring topology relies on ____ rings to carry data.

ISDN PRI uses ____ B channels and one 64-Kbps D channel.

The portion of the PSTN that connects any residence or business to the nearest CO is known as the ____.

A ____ converts digital signals into analog signals for use with ISDN phones and other analog devices.

SONET's extraordinary ____ results from its use of a double-ring topology over fiber-optic cable.

What sets ATM apart from Ethernet is its ____ size.

Explain how ATM relies on virtual circuits.

A ____ aggregates multiple DSL subscriber lines and connects them to the carrier's CO.

Dial-up ISDN does not convert a computer's digital signals to analog before transmitting them over the PSTN.

A(n) ____________________ combines individual SONET signals on the transmitting end, and another multiplexer separates combined signals on the receiving end.

After SONET, BPL has the best maximum throughput available.

A ____ connection is one in which a user connects her computer, via a modem, to a distant network and stays connected for a finite period of time.

Define the term xDSL and name the better known DSL varieties.

In a process called ____, two 64-Kbps ISDN B channels can be combined to achieve an effective throughput of 128 Kbps.

A(n) ____ is the place where a telephone company terminates lines and switches calls between different locations.

An Introduction to Networking

Network Standards and the OSI Model

Transmission Basics and Networking Media

Introduction to TCP/IP Protocols

Topologies and Ethernet Standards

Network Hardware, Switching, and Routing

Wireless Networking

In-Depth TCP/IP Networking

Virtual Networks and Remote Access

Network Security

Voice and Video Over IP

Troubleshooting Network Problems

Ensuring Integrity and Availability

Network Management

Filters

Exam 7: Wide Area Networks

Describe the fundamental properties WANs and LANs have in common.

At the customer's demarcation point, either inside or outside the building, RJ-48 connectors terminate in a ____.

Why is SONET technology typically not implemented by small or medium-size businesses?

The data rate of a particular SONET ring is indicated by its ____, a rating that is internationally recognized by networking professionals and standards organizations.

On most modern WANs, a ring topology relies on ____ rings to carry data.

ISDN PRI uses ____ B channels and one 64-Kbps D channel.

The portion of the PSTN that connects any residence or business to the nearest CO is known as the ____.

A ____ converts digital signals into analog signals for use with ISDN phones and other analog devices.

SONET's extraordinary ____ results from its use of a double-ring topology over fiber-optic cable.

What sets ATM apart from Ethernet is its ____ size.

Explain how ATM relies on virtual circuits.

A ____ aggregates multiple DSL subscriber lines and connects them to the carrier's CO.

Dial-up ISDN does not convert a computer's digital signals to analog before transmitting them over the PSTN.

A(n) ____________________ combines individual SONET signals on the transmitting end, and another multiplexer separates combined signals on the receiving end.

After SONET, BPL has the best maximum throughput available.

A ____ connection is one in which a user connects her computer, via a modem, to a distant network and stays connected for a finite period of time.

Define the term xDSL and name the better known DSL varieties.

In a process called ____, two 64-Kbps ISDN B channels can be combined to achieve an effective throughput of 128 Kbps.

A(n) ____ is the place where a telephone company terminates lines and switches calls between different locations.

An Introduction to Networking

Network Standards and the OSI Model

Transmission Basics and Networking Media

Introduction to TCP/IP Protocols

Topologies and Ethernet Standards

Network Hardware, Switching, and Routing

Wireless Networking

In-Depth TCP/IP Networking

Virtual Networks and Remote Access

Network Security

Voice and Video Over IP

Troubleshooting Network Problems

Ensuring Integrity and Availability

Network Management

Filters