Which of these is a standard interface for serial data transmission?

• ASCII

• RS232C

• 2

• Centronics

Which type of topology is best suited for large business which must carefully control & coordinate the operation of distributed branch outlets?

• Ring

• Tree

• Mesh

• Star

Which of the following transmission directions listed is not a legitimate channel?

• simplex

• half duplex

• full duplex

• double duplex

parity bits are used for

• encryption of data

• To transmit faster

• to detect errors

• to identify the users

What kind of transmission medium is most suitable to carry data in a computer network that is exposed to electrical interference?

• unshielded twisted pair

• optical fiber

• coaxial cable

• microwave

A collection of hyperlinked documents on the internet forms?

• WWW

• E-mail

• Mailing list

• HTML

The location of resource on the internet is given by its

• protocol

• URL

• E-mail

• ICQ

The term HTTP stands for?

• Hyper terminal tracing program

• Hypertext tracing protocol

• Hypertext transfer program

• Hypertext transfer protocol

Which one of the following would breach the integrity of a system?

• Looking the room to prevent theft

• Full access rights for all users

• Fitting the system with an anti-theft device

• Protecting the device against willful or accidental damage

Which software prevents the external access to a system?

• Firewall

• Gateway

• Router

• Virus checker