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
271
What does LAN stand for?
Answer:
Local Area Network
LAN stands for Local Area Network, which is a network that is limited to a small geographical area such as a home, school, or office building.
272
Which network type is more affected by physical obstructions like walls?
Answer:
Wireless network
The signal strength of a wireless network can be significantly weakened by walls, floors, and other physical barriers.
273
What communication mode supports two-way traffic, one direction at a time?
Answer:
Half duplex
Half duplex allows communication both ways, but not simultaneously.
274
A "hop" in networking refers to:
Answer:
The passage of a packet through a router
Each time a packet is forwarded by a router, it is considered one hop.
275
Computers connected to a LAN have the ability to:
Answer:
Share information or peripherals
LAN users can exchange information or utilize shared hardware like printers.
276
What do you call a networked device that connects without wires?
Answer:
Wireless
Devices that connect to networks without cables use wireless technology.
277
Which of the following does NOT affect latency?
Answer:
The amount of bandwidth you have
Increasing your bandwidth does not reduce the time it takes for a single bit to travel from one point to another. Latency is primarily a function of distance and the processing time of network devices.
278
The connection of devices around a person's desk is a:
Answer:
PAN
A PAN is used to connect personal devices such as a laptop, mouse, keyboard, and printer in a small area.
279
The term "network of networks" is often used to describe:
Answer:
The Internet
The Internet is a vast collection of interconnected networks, so it is often called a "network of networks."
280
When computers are linked for information sharing, this arrangement is called a:
Answer:
Network
A network facilitates sharing of data and resources among connected computers.