Exam 10: Communicating Digital Content

The star topology is primarily used for LANs but it is also used in WANs.

ADSL is ideal for Internet access because most users upload more information than they download from the Internet.

Which of the following is the least likely technology PANs would use?

Which of the following best describes DSL connections?

Which of the following enables a computer or device that does not have built-in networking capability to access a network?

Which network type connects each computer and device to a central device?

Which of the following is a simple, inexpensive network that typically connects fewer than 10 computers?

Which of the following defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology?

An extranet essentially is a small version of the Internet that exists within an organization.

How many wired and/or wireless computers and mobile devices might a router be able to connect?

Which of the following can detect problems-such as why traffic is flowing slowly-on networks that use the TCP/IP protocol?

Which of the following is the maximum transfer transmission rate for communications satellites?

What is the definition of a protocol, as it applies to networks?

As shown in the accompanying figure, what is the term for a network that covers a large geographic area, such as a city, country, or the world, using a variety of wired and wireless transmission media?

Wireless transmission media are used when it is impossible to install cables.

You have taken a new job as a network administrator. Although you have been an IT professional within your organization for a number of years, this particular responsibility is a new one for you, so you have been studying network topologies, for example. If you are charged with setting up a network for your team and there is one device whose reliability you are concerned about, which of the following network topologies is a bad idea for you?

Infrared requires ____________________ transmission, that is, the sending device and the receiving device must be in line with each other so that nothing obstructs the path of the infrared light wave.

ISDN and DSL are more widely used than cable.

Which of the following is not an application of communications satellite technology?

With TCP/IP, each packet contains data as well as the recipient (destination), origin (sender), and the sequence information used to reassemble the data at the destination.