Computer Quiz interview questions

A modem that is attached to the telephone system by jamming the phone’s hand-set into two flexible receptacles in the coupler is

1. Acoustic coupler
2. Bridge
3. Time-division multiplexer
4. Gateway

Which of the following program is used to copy files to or from another using time-sharing system over a single link?

1. UART
2. UUCP
3. TFTP
4. VMTP

If you want to connect to your own computer through the Internet from another location, you can use

1. FTP
2. Telnet
3. Instant message
4. E-mail

Computers send and receive data in the form of ______ signals.

1. Analog
2. Digital
3. Modulated
4. Demodulated

Printer is an example of

1. Storage device
2. Processing device
3. Input device
4. Output device

Which of the following types of channels moves data relatively slowly?

1. Broadband channel
2. Narrowband channel
3. Voiceband channel
4. Wideband channel

If you wish to extend the length of the network without having the signal degrade, you would use a

1. Repeater
2. Switch
3. Gateway
4. Router

Frames from one LAN can be transmitted to another LAN via the device

1. Modem
2. Repeater
3. Bridge
4. Router

What do we call the keys that change the meaning of what you type?

1. Disk space
2. Change keys
3. Modifier keys
4. Keyboard

4GL stands for

1. Four General Language
2. Fourth Generation Language
3. Fourth General Language
4. Four Generation Language

Which one of the following is not a client-server application?

1. Ping
2. E-mail
3. Web browsing
4. Internet chat

The protocol data unit (PDU) for the application layer in the internet stack is

1. Frame 
2. Datagram
3. Segment
4. Message

A modem is connected to

1. A printer
2. A monitor
3. A telephone line
4. A scanner

Which of the following device is used to connect two systems, especially if the systems use different protocols?

1. Gateway
2. Repeater
3. Bridge
4. Hub

Which of the following communications modes support two-way traffic but in only one direction of a time?

1. Half-duplex
2. Three-quarters duplex
3. Simplex
4. All of the above

Codec refers to

1. Command decoding
2. Command declaration
3. Coder-decoder
4. Co-declaration

A  ____  is a set of rules.

1. Protocol
2. URL
3. Hypertext
4. Resource locator

A computer falls into the ____ category if it is, at the time of construction, one of the fastest computers in the world.

1. Micro computer
2. Mainframe
3. Super computer
4. Mini computer

What is a Firewall in Computer Network?

1. A web browsing software
2. The physical boundary of Network
3. An OS of computer Network
4. A system designed to prevent unauthorized access

What type of control pins is needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?

1. Interrupts
2. Bus arbitration
3. Bus control
4. Status

An example of a telecommunications device is a

1. Modem
2. Mouse
3. Printer
4. Keyboard

An uniform interval of CPU time allocated for use in performing a task is known as

1. Seek time
2. Down time
3. Time slice
4. Real time

The bit synchronization method in which transmitters send a single start bit before transmitting data and receivers use an internal hardware clock to know how frequently to measure the signal, is called

1. Isochronous
2. Time division
3. Synchronous
4. Asynchronous

The transport layer protocols used for real time multimedia, file transfer, DNS and email,

1. TCP, UDP, TCP and UDP
2. UDP, TCP, UDP and TCP
3. UDP, TCP, TCP and UDP
4. TCP, UDP, UDP and TCP

FDM devices can operate

1. Like modem sharing devices
2. More efficiently than smart TDMs
3. More efficiently than dumb TDMs
4. On multipoint analog data channels

The physical path that is used for sending information is called

1. Link
2. Line
3. Channel
4. All of these

A 6-MHz channel is used by a digital signaling system utilizing 4-level signals. What is the maximum possible transmission rate?

1. 1.5 M baud/sec
2. 6 M baud /sec
3. 12 M baud /sec
4. 24 M baud /sec

Synchronous protocols

1. Are generally used by personal computers
2. Allow faster transmission than asynchronous protocols do
3. Transmit characters one at a time
4. All of these

A device that forwards data packet from one network to another is called a

1. Hub
2. Bridge
3. Switch
4. Gateway

ARP (Address Resolution protocol) is a

1. Protocol used to monitor computers
2. Protocol that handles error and control messages
3. High level protocol for transferring files from one machine to another
4. Protocol used to dynamically bind IP Address to a low-level physical hardware address