Question 1

An ________ extends a company's intranet out onto the Internet to allow selected customers,suppliers,and mobile workers to access the company's private data and applications.

Accepted Answer

The answer of An ________ extends a company's intranet out...

Question 2

The rapid conversion of consumer electronics to digital technology is having an impact on both the Internet and corporate intranets.Two examples of this trend are ________.
A)server farms and DVDs
B)power workgroups and server farms
C)DVDs and CD-ROMs
D)digital versatile disks and digital still cameras

Accepted Answer

The question asks for examples of the impact of the rapid conversion to digital technology on the Internet and intranets. Both DVDs and digital still cameras are examples of consumer electronics that have rapidly converted to digital technology and are impacting the Internet and intranets. DVDs are used for digital content distribution and storage, while digital still cameras are used for capturing and sharing digital images, both of which are affecting how people use the Internet and corporate intranets. The other choices listed are not specific examples of the impact of digital technology on the Internet and intranets.

Question 3

In a ________ network,a dedicated communications path is established between two stations through the nodes of the network.The telephone network is the most common example.
A)frame relay
B)ATM
C)circuit switching
D)packet switching

Accepted Answer

Circuit switching is the technology that establishes a dedicated communication channel between two stations through the nodes in the network. This is the traditional communication model used in the telephone network where a connection is made using a circuit that is allocated and reserved for the duration of the communication session.

Question 4

In situations in which an information exchange is interrupted due to a fault somewhere in the system,________ techniques are needed to either resume activity at the point of interruption or to restore systems to their state prior to the beginning of the exchange.
A)flow control
B)routing control
C)recovery
D)error correction

Accepted Answer

Recovery techniques are specifically designed to resume activity at the point of interruption or to restore systems to their state prior to the beginning of the exchange. Flow control is used to manage the rate of data transmission, routing control is used to determine the best path for data traffic, and error correction is used to detect and correct errors in the data transmission. While these techniques are important, they do not directly address the issue of interrupting the information exchange.

Question 5

Recent offerings of ________ multiplexing enable capacities of many terabits per second for long-distance telecommunication and data network links.

Accepted Answer

The answer of Recent offerings of ________ multiplexing enable capacities...

Question 6

There is a potential for error in all communication systems,therefore,_________ and correction are required in circumstances where errors cannot be tolerated.

Accepted Answer

The answer of There is a potential for error in...

Question 7

Individual hosts and LANs are connected to an Internet Service Provider through a ________.
A)NAP
B)CPE
C)POP
D)NSP

Accepted Answer

POP (Point of Presence) is the correct answer because it refers to an access point, location, or facility that connects individual hosts and Local Area Networks (LANs) to an Internet Service Provider (ISP), allowing them to access the internet.

Question 8

A dominant architecture in the business environment and the more recent Web-focused intranet trend is ________ computing.
A)Ethernet
B)GUI
C)token ring
D)client/server

Accepted Answer

Client/server computing is a dominant architecture in the business environment and also in the more recent trend of Web-focused intranets. This architecture involves a client (user's computer) requesting services or resources from a server (centralized computer), which responds to the request and delivers the requested information or service back to the client. This architecture is used for hosting databases, applications, and web servers. Ethernet and token ring are types of network protocols, while GUI (Graphical User Interface) is a type of user interface. They are not related to the dominant architecture in business environments and intranets.

Question 9

The place where telephone companies terminate customer lines and locate switching equipment to interconnect those lines with other networks is the ________.
A)CO
B)ISP
C)POP
D)NAP

Accepted Answer

The term CO stands for Central Office, which is the place where telephone companies terminate customer lines and locate switching equipment to interconnect those lines with other networks. ISPs (Internet Service Providers) and POPs (Points of Presence) may also be involved in telecommunication networks, but they are not the specific location where telephone lines are terminated and switching equipment is located. NAP (Network Access Point) is a facility where different ISPs interconnect with each other to exchange traffic, but it is not specifically related to customer telephone lines.

Question 10

Once an interface is established ________ is required for communication.
A)digital conversion
B)signal generation
C)synchronization
D)transmission

Accepted Answer

The answer of Once an interface is established ________ is...

Question 11

A ________ is a physical facility that provides the infrastructure to move data between connected networks.
A)ATM
B)FDDI
C)NAP
D)NSP

Accepted Answer

NAP stands for Network Access Point, and it is a physical facility that allows for the interconnection of multiple networks to facilitate the movement of data between them. NAPs are often used to improve network performance and reliability by providing redundant connections and reducing bottlenecks. ATM (Asynchronous Transfer Mode) and FDDI (Fiber Distributed Data Interface) are network technologies that can be used within a NAP, but they do not describe the facility itself. NSP (Network Service Provider) refers to a company that provides internet connectivity services, but it is not a physical facility.

Question 12

__________ is required to assure that the source does not overwhelm the destination by sending data faster than they can be processed and absorbed.

Accepted Answer

The answer of __________ is required to assure that the...

Question 13

Three different forces have consistently driven the architecture and evolution of data communications and networking facilities: traffic growth,development of new services,and ________.

Accepted Answer

The answer of Three different forces have consistently driven the...

Question 14

The key elements of a simple communications model are ________.
A)source,transmission,destination
B)signal,transmission,receiver
C)source,signal,destination
D)source,signal,receiver

Accepted Answer

The simple communication model consists of three main elements: the source, the transmission, and the destination. The source is the person or entity sending the message, the transmission is the method or medium used to transmit the message, and the destination is the person or entity receiving the message. Option B describes a basic model for telecommunications, while option C and D each omit an important component of the communication process.

Question 15

In order for data processing devices to communicate certain conventions must be decided on.These requirements can collectively be termed ________.
A)synchronization
B)transmission systems
C)exchange management
D)flow control

Accepted Answer

Exchange management refers to the conventions and protocols that must be established for data processing devices to communicate effectively.

Question 16

Today's networks can offer differing levels of ________,which include specifications for maximum delay and minimum throughput.

Accepted Answer

The answer of Today's networks can offer differing levels of...

Question 17

The need to make efficient use of transmission facilities that are typically shared among a number of communicating devices is referred to as ________.

Accepted Answer

The answer of The need to make efficient use of...

Question 18

________ is the process of squeezing the data down so that a lower capacity, cheaper transmission facility can be used to meet a given demand.

Accepted Answer

The answer of ________ is the process of squeezing the...

Question 19

Networks that generally cover a large geographical area,require the crossing of public right-of-ways,consist of a number of interconnected switching nodes, and rely on circuits provided by a common carrier are ________.

Accepted Answer

The answer of Networks that generally cover a large geographical...

Question 20

________ involves moving voice into a data infrastructure,integrating all the voice and data networks inside a user organization into a single data network infrastructure,and then extending that into the wireless arena.

Accepted Answer

The answer of ________ involves moving voice into a data...

Quiz 1: Data Communications, data Networks,

An ________ extends a company's intranet out onto the Internet to allow selected customers,suppliers,and mobile workers to access the company's private data and applications.

The rapid conversion of consumer electronics to digital technology is having an impact on both the Internet and corporate intranets.Two examples of this trend are ________.

In a ________ network,a dedicated communications path is established between two stations through the nodes of the network.The telephone network is the most common example.

In situations in which an information exchange is interrupted due to a fault somewhere in the system,________ techniques are needed to either resume activity at the point of interruption or to restore systems to their state prior to the beginning of the exchange.

Recent offerings of ________ multiplexing enable capacities of many terabits per second for long-distance telecommunication and data network links.

There is a potential for error in all communication systems,therefore,_________ and correction are required in circumstances where errors cannot be tolerated.

Individual hosts and LANs are connected to an Internet Service Provider through a ________.

A dominant architecture in the business environment and the more recent Web-focused intranet trend is ________ computing.

The place where telephone companies terminate customer lines and locate switching equipment to interconnect those lines with other networks is the ________.

Once an interface is established ________ is required for communication.

A ________ is a physical facility that provides the infrastructure to move data between connected networks.