Computer Knowledge

Computer Networks

2,256 Questions

Computer networks form the backbone of digital communication, connecting multiple devices to share data and resources. This area covers network architectures, transmission media, modems, and topologies like LAN. These concepts are crucial for computer knowledge sections in banking and government exams.

Network topologiesModulation and demodulationNetwork addressingFiber optic cablesWireless infrastructure

Computer Networks Questions

Multiple choice

IEEE 1394 corresponds to which of the following?

  1. parallel port

  2. POSIX

  3. futurebus

  4. firewire

  5. LAN
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

IEEE 1394 is an interface standard for a serial bus for high-speed communications and isochronous real-time data transfer. It was developed in the late 1980s and early 1990s by Apple, that called it FireWire.

Multiple choice

Dedicated line is same as ______.

  1. Narrowband Line

  2. Broadband Line

  3. Leased line

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A dedicated line is a telecommunications connection reserved for specific use, also known as a leased line. It's not shared with other users and provides consistent bandwidth and reliability. This is different from standard broadband which is shared among multiple users.

Multiple choice

SONET is a standard for which of the following networks?

  1. Twisted-pair cable

  2. Fibre-optic cable

  3. Coaxial cable

  4. Ethernet
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

SONET (Synchronous Optical Networking) is a standard for transmitting data over fiber-optic cables. It provides a standardized framework for synchronous data transmission at high speeds using optical fiber. SONET is not used for twisted-pair, coaxial cables, or Ethernet.

Multiple choice

Which of the following transmission techniques permits data flow in only one direction?

  1. Simplex

  2. Half Duplex

  3. Full duplex

  4. Multiplexing
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Simplex transmission allows data to flow in only one direction, like a radio broadcast or television signal. Half-duplex permits two-way communication but not simultaneously (walkie-talkies), while full-duplex enables simultaneous two-way communication (telephone). Multiplexing is about combining signals, not directionality.

Multiple choice

Which of the following options is most reliable, robust and has a very high processing power and is used in networks too?

  1. Super computer

  2. Macro computer

  3. Main Frame

  4. All of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mainframe computers are specifically designed for reliability, robustness, and high-volume transaction processing in networked environments like banking and airline reservation systems. While supercomputers have higher raw processing power, they're specialized for scientific calculations. 'Macro computer' is not a standard computer classification.