Which of these keys is NOT on the number keypad ?

A. Ctrl
B. Del
C. Enter
D. Num lock

A _______________ is a large and expensive computer capable of simultaneously processing data for hundreds or thousands of users ?

A. Handheld computer
B. Mainframe computer
C. Personal computer
D. Tablet computer

A button that makes characters either upper or lower case and numbers to symbols________________________?

A. Monitor
B. Shift key
C. Icon
D. Mouse

To see all information which device output uses ?

A. Monitor
B. Keyboard
C. Alu
D. Cpu

Application layer protocol defines_____________________?

A. Types of messages exchanged
B. Message format, syntax and semantics
C. Rules for when and how processes send and respond to messages
D. All of these

Any data and instruction entered in the memory of a computer is_____________________?

A. Storage
B. Output
C. Input
D. Information

Which of the following is an application layer service ?

A. Network virtual terminal
B. File transfer, access, and management
C. Mail service
D. All of these

In MICR, C stands for___________________?

A. Code
B. Colour
C. Computer
D. Character

This is a time-sensitive service_____________________?

A. File transfer
B. File download
C. E-mail
D. Internet telephony

Bluetooth is an example of___________________?

A. Personal area network
B. Local area network
C. Virtual private network
D. None of the mentioned