Exam 6: Telecommunications and Networks

Software that is installed on intranet Web servers can be accessed by employees within the company or by external business partners who are using Web browsers,if access is allowed by the company.

A communications network is any arrangement where a sender transmits a message to a receiver over a _______________,consisting of some type of medium.

In telecommunications networks,twisted-pair wire:

Based on the information presented in the text,telecommunications terminals are best described as:

Telecommunications and network management software can reside in communications processors,such as multiplexers and routers.

The comparative _______________ of publishing and accessing multimedia business information internally via intranet websites has been one of the primary reasons for the explosive growth in the use of intranets in business.

Middleware is an essential component of any IT infrastructure because it allows disparate systems to be isolated.

All of the following would typically be supported by an organization's intranet information portal except:

A network configuration that consists of a central computer system with a number of smaller computers tied directly to it,but not to each other,is a _______________ network.

Traveling salespeople and those at regional sales offices can use the Internet,extranets,and other networks to transmit customer orders from their laptop or desktop PCs,thus breaking _______________ barriers.

Which of the following statements best defines a network?

IP addressing can identify a particular PC connected to the Internet,but not the network to which it is attached.C.The Class B portion of the address identifies networks.

We can think of the _______________ as a network made up of millions of smaller,private networks,each with the ability to operate independent of,or in harmony with,all the other millions of connected networks.

The _______________ layer in an OSI model provides communications services for end users.

A modem converts digital signals into analog frequencies and then back again.This process is known as modulation and _______________.

Which of the following best describes a local area network?

IPv6 supports over 300 trillion trillion trillion addresses.

Output from analog devices must be converted into digital form in order to input it into a computer.

To communicate over a network,each PC usually has a circuit board called a _______________.

Regular telephone service relies on circuit _______________,in which a switch opens a circuit to establish a link between a sender and receiver.It remains open until the communication session is completed.