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
291
What is a "connectionless" protocol?
Answer:
A protocol where each packet is treated independently, without establishing a session first
Protocols like IP and UDP are connectionless. They just send the packets without any prior setup.
292
What is the purpose of a default gateway?
Answer:
To tell a device where to send traffic that is not on its local network
The default gateway is the IP address of the router, which is the device that connects the local network to other networks.
293
Which statement is NOT correct?
Answer:
Batch processing is best for telecommunication operations.
Telecommunication favors real-time or interactive processing over batch operations, making the statement incorrect.
294
Which transmission system offers the highest data rate to a connected device?
Answer:
Computer bus
A computer bus supports the fastest data rate for devices within a computer compared to external lines.
295
Which model is more scalable for a large number of users?
Answer:
Client-server model
The client-server model is more scalable because you can upgrade the server to handle more clients, and the administration is centralized.
296
Which network has the smallest geographical range?
Answer:
PAN
A Personal Area Network (PAN) has the shortest range, typically covering just a few meters around an individual.
297
What does Wi-Fi stand for?
Answer:
None of the above
Wi-Fi is a trademarked name for the IEEE 802.11 set of wireless networking standards. It does not stand for anything.
298
What is the primary technology used in wired LANs?
Answer:
Ethernet
Ethernet is the most common technology for wired Local Area Networks (LANs).
299
Which network type is most common in college labs?
Answer:
LAN
Local Area Networks (LANs) are used to connect computers within a limited geographical area, such as a school, office, or computer lab.
300
Which device is required for two computers to communicate on the same LAN?
Answer:
A switch or a hub
To connect two computers on the same network, you need a central device like a switch or a hub.