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
5951
A "bottleneck" in a network is:
Answer:
A point of congestion that slows down the entire network
A bottleneck is a component that limits the overall performance of a system, like a single slow link in an otherwise fast network.
5952
What is the main advantage of a wired network over a wireless network?
Answer:
Speed and reliability
Wired networks generally offer faster speeds and a more stable, reliable connection than wireless networks.
5953
Which technology is the basis for communication on the internet?
Answer:
Packet switching
The internet is a massive packet-switched network.
5954
The process of reassembling packets in the correct order at the destination is handled by:
Answer:
The operating system's network stack (e.g., TCP)
Packets are given sequence numbers so that the receiving computer's TCP/IP stack can put them back in the right order.
5955
The time it takes for a router to process a packet's header is part of the:
Answer:
Latency
Processing delay at each network device contributes to the overall end-to-end latency.
5956
What must be installed on a network to share a broadband Internet connection?
Answer:
Router
A router is used to distribute a single internet connection to multiple devices on a local network.
5957
What is a disadvantage of a wired network?
Answer:
It limits the mobility of devices.
Devices on a wired network are tethered by a cable, which restricts where they can be used.
5958
A router connects:
Answer:
Two or more networks
The fundamental purpose of a router is to connect different networks.
5959
What is a group of computers and devices linked in one system known as?
Answer:
Network
A network connects multiple computers and devices for sharing resources and communication.
5960
Which network type is the easiest to set up?
Answer:
PAN
PANs, especially those using Bluetooth, are typically the easiest to set up, often involving a simple pairing process.