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
21
Which type of network spans a large geographical area, such as a country or continent?
Answer:
WAN
A Wide Area Network (WAN) is a network that covers a broad area, such as any network whose communications links cross metropolitan, regional, or national boundaries.
22
Where is data typically stored in a client-server network?
Answer:
On a central server
A key feature of the client-server model is centralized data storage, which makes backups and security easier to manage.
23
The term for the amount of data transferable over the Internet is:
Answer:
Bandwidth
Bandwidth is the measure of the maximum rate of data transfer across a given path.
24
The term describing the amount of space available to transmit to and from the Internet is:
Answer:
Bandwidth
Bandwidth measures the data-carrying capacity of a network connection.
25
A network connecting a few computers in a home for file sharing is a:
Answer:
LAN
A home network is a small, privately owned network, which is the definition of a LAN.
26
If one computer in a P2P network fails, what happens to the network?
Answer:
The other computers can still communicate with each other.
P2P networks are more resilient to the failure of a single peer, as there is no central point of failure.
27
How does a network handle packet loss?
Answer:
Protocols like TCP will retransmit the lost packet.
The Transmission Control Protocol (TCP) is a reliable protocol that detects and retransmits lost packets to ensure the entire message is received correctly.
28
Which device is also known as a multiport repeater?
Answer:
Hub
A hub is essentially a repeater with multiple ports, as it regenerates and retransmits incoming signals to all connected devices.
29
A fiber optic connection generally has:
Answer:
High bandwidth and low latency
Fiber optic technology offers both very high capacity (bandwidth) and very low delay (latency) because data travels at nearly the speed of light.
30
Which is NOT a physical medium for a wired network?
Answer:
Air
Air is the medium for wireless networks, not wired ones.