Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
221
What is circuit switching?
Answer:
A method where a dedicated physical connection is established for the duration of a communication
The traditional telephone network is an example of a circuit-switched network.
222
What is a key advantage of the client-server model for businesses?
Answer:
Centralized control and security
For a business, the ability to centrally manage data, users, and security is the most significant advantage of the client-server model.
223
Which type of network is more susceptible to interference?
Answer:
Wireless network
Wireless networks can be affected by interference from other wireless devices, physical obstructions, and even microwave ovens.
224
In the highway analogy for networking, bandwidth is the:
Answer:
Number of lanes on the highway
More lanes (higher bandwidth) allow more cars (data) to travel at the same time.
225
What is the primary purpose of a WAN?
Answer:
To connect multiple LANs over a large geographical area
A primary function of a WAN is to interconnect geographically dispersed LANs, allowing for communication between them.
226
A university or corporate LAN with servers and clients is called what?
Answer:
Client/server network
In a client/server network, dedicated servers provide resources and services to client computers.
227
Two or more computers linked together are called what?
Answer:
Computer network
A computer network consists of two or more computers connected to share resources, exchange files, or allow electronic communications.
228
What is packet loss?
Answer:
When a packet fails to reach its destination
Packet loss occurs when network congestion, hardware errors, or other problems cause a packet to be dropped and not delivered.
229
Which of these denotes a small, single-location network?
Answer:
LAN
A LAN (local area network) connects devices within a limited area like a home or an office.
230
Which network type is more energy-efficient?
Answer:
Wired network
Transmitting data over a wire generally consumes less power than broadcasting a wireless signal.