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
6011
How many collision domains does a 12-port hub create?
Answer:
1
A hub creates a single collision domain because all ports are part of the same shared bandwidth.
6012
What is a "thin client"?
Answer:
A client computer that relies heavily on the server for processing
A thin client is a lightweight computer that has its processing and data storage done on a central server.
6013
What is the main function of a switch?
Answer:
To forward data based on MAC addresses
A switch's primary role is to forward data frames to their destination within a LAN using MAC addresses.
6014
Which model is generally more secure?
Answer:
Client-server model
Security is centralized and easier to manage on a client-server network. In a P2P network, security is the responsibility of each individual user.
6015
Another name for a shared network is:
Answer:
Hub
A hub is a simple networking device that shares bandwidth among all connected devices, making it a shared network medium.
6016
The Internet is:
Answer:
A large network of networks
Fundamentally, the Internet is a vast, global network of interconnected computer networks.
6017
Which of the following is measured in bits per second (bps)?
Answer:
Bandwidth
Bandwidth is a measure of data rate, and its units are bits per second (e.g., Mbps for megabits per second, Gbps for gigabits per second).
6018
Which application is most sensitive to jitter?
Answer:
Voice over IP (VoIP)
For real-time conversations like a phone call, inconsistent packet delays (jitter) can cause the audio to sound choppy and distorted.
6019
Which approach is used to send data via a serial link?
Answer:
Both B and C
Serial links can operate in simplex, half-duplex, or full-duplex modes.
6020
Which network type is most likely to use satellite communication?
Answer:
WAN
WANs use a variety of long-distance communication technologies, including satellite links, to connect remote locations.