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
6111
What type of cable is typically used to connect devices to a switch, hub, or router?
Answer:
Ethernet cable
Ethernet cables (such as Cat5e or Cat6) are the standard for wired LAN connections.
6112
What does UDP stand for?
Answer:
User Datagram Protocol
UDP is a connectionless protocol that is part of the TCP/IP suite. It is often used for applications like online gaming and streaming where speed is more important than reliability.
6113
What causes network congestion?
Answer:
Too much data being sent for the network to handle
Congestion occurs when the demand for network resources exceeds the available bandwidth, causing delays and packet loss.
6114
"Gigabit Ethernet" refers to a bandwidth of:
Answer:
1,000,000,000 bits per second
"Giga" is the prefix for a billion, so Gigabit Ethernet has a bandwidth of 1 Gbps.
6115
What role do servers play in a network?
Answer:
Provide resources to networked devices
Servers deliver data, resources, or services to other computers in a network.
6116
What is fiber optic cable?
Answer:
A type of cable that uses light to transmit data
Fiber optic cables use thin strands of glass or plastic to transmit data as pulses of light, offering very high speeds over long distances.
6117
In a typical network setup, which computer is considered the most vital or powerful?
Answer:
Network server
The network server coordinates and manages resources, being the central unit in most networks.
6118
Which of the following is an example of a wireless network technology?
Answer:
Wi-Fi
Wi-Fi is a wireless networking technology that uses radio waves to provide wireless high-speed internet and network connections.
6119
A network in a single room or building is a:
Answer:
LAN
A Local Area Network (LAN) is confined to a small area, such as a single room, a building, or a campus.
6120
What is the main job of the server in a client-server network?
Answer:
To listen for and respond to requests from clients
A server's primary function is to wait for requests from clients and then fulfill those requests.