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
5901
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.
5902
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.
5903
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.
5904
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.
5905
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.
5906
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.
5907
Which is NOT a physical medium for a wired network?
Answer:
Air
Air is the medium for wireless networks, not wired ones.
5908
A hub connects:
Answer:
Both b and c
A hub, like a switch, is used to connect devices within the same network, but it is less efficient.
5909
Which of the following is a characteristic of a LAN?
Answer:
High data transfer rates
LANs typically offer high data transfer rates because of the short distances involved and the use of high-speed cabling like Ethernet.
5910
A hub is associated with:
Answer:
Star networks
In a star topology, a central hub or switch connects all network devices.