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which on of the statements correctly completes the following sentence? A computer's operating system:
is the last program to load when you start the computer.
Dose not control devices connected to the PC.
Is not necessary on high-powered personal computers.
Instructs the screen to display data entered with the keyboard.

Which two statements about Local Area Networks (LANs) are true?
Applications cannot be shared over a LAN.
Authorized users can access and use data stored anywhere on a LAN.
Telecommunications services cannot be shared over a LAN.
Large data files can be transferred between computers using a LAN.
it is not possible for users of a LAN to share printers.

Which one of the following descriptions of an extranet is true?
A world-wide collection of files connected by links.
A very large intranet within an organization
An extra-fast intranet for web and e-mail.
Shares data between two or more organizations.

Which one of these statements about the Internet is false?
It enables computers with different operating systems to exchange data.
It is not controlled by any single organization.
You need a license to publish material on the Internet.
It allows computers to share data over large distances.

Which one of the following is digital line, used for both voice and data?
ISDN
FTP
PSTN
FTTH