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
5941
Interactive data transmission in a time-sharing system is best managed through:
Answer:
Full duplex lines
Full duplex lines enable simultaneous two-way communication, ideal for interactive transmissions.
5942
A network that connects several LANs in different cities is a:
Answer:
WAN
A Wide Area Network (WAN) is required to connect LANs that are geographically separated by long distances, such as in different cities.
5943
What is a benefit of the P2P model's redundancy?
Answer:
It is more reliable if one peer fails.
The decentralized nature of a P2P network means there is no single point of failure.
5944
Which device can create Virtual LANs (VLANs)?
Answer:
Managed switch
VLANs are a feature of managed switches that allow you to segment a LAN into multiple logical networks.
5945
If a computer can't connect to other devices, it's considered:
Answer:
Offline
Offline status means a computer isn’t connected to a network or the internet. [cite: 250]
5946
In a P2P network, where are the resources (files, printers) located?
Answer:
Distributed among the peer computers
Resources in a P2P network are shared directly from the hard drives of the individual peer computers.
5947
Which network is commonly used in school computer labs?
Answer:
LAN
Local Area Networks connect devices within a limited area like schools or offices. [cite: 283]
5948
An email system (e.g., Gmail) is an example of:
Answer:
Client-server model
Your email client (like a web browser or a mobile app) connects to a mail server to send and receive messages.
5949
Which device uses IP addresses to make forwarding decisions?
Answer:
Router
Routers examine the destination IP address of a packet to determine the best path to send it to its destination network.
5950
What is the primary advantage of packet switching over circuit switching?
Answer:
It is more efficient in its use of network resources.
Packet switching allows multiple users to share the same network connection, as packets can be interleaved, which is much more efficient than dedicating a circuit for each communication.