Exam 7: Computer Networks

What is a virtual private network (VPN)?

The conventional phone system uses digital signals.

In ____ transmission,data can travel in either direction,but only in one direction at a time.

A personal area network (PAN)is a network of personal devices for one individual,such as his or her portable computer,mobile phone,and printer.

Communications satellites are space-based devices launched into orbit around the earth to receive and transmit microwave signals to and from earth.

With ____,data is sent one bit at a time,one after the other along a single path.

One of the early Ethernet protocols (called 10BASE-T)supports transmission rates of 10 Mbps.

With a(n)partial mesh topology,some devices are connected to all other devices,but some are connected only to those devices with which they exchange the most data.

Case 7-1 Robert is a medical writer for a pharmaceutical company.The company allows Robert to work from home. -Robert's job is a(n)____ job.

____________________ cable is the newest and fastest wired transmission medium.

-The accompanying figure shows a ____ network.

A(n)star network uses a number of different connections between network devices so that data can take any of several possible paths from source to destination.

____ is the use of networking technology to provide medical information and services.

With a(n)____________________ topology,each device on the network has a connection to every other device on the network.

Mobile phones are phones that use a ____________________ network for communications instead of being connected to the regular telephone network via a conventional telephone jack.

Describe the star network topology.

\ -The accompanying figure illustrates a(n)ring network.

Transferring data from a client PC to a server is referred to as downloading.

Describe the TransferJet wireless standard.

Case 7-2 Gabrielle is the network administrator at a medium-sized company.One of her responsibilities is to purchase network devices to maintain the company network. -Gabrielle realizes that to improve network performance,she needs to buy and install a ____,which identifies the device on the network for which the data is intended and sends the data to that device only.