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
171
What is an SSID?
Answer:
The name of a wireless network
The Service Set Identifier (SSID) is the public name of a Wi-Fi network.
172
Which of the following is NOT a utility program?
Answer:
Spooler
A spooler is a system process that manages a queue for a device like a printer. Debuggers and editors are generally considered utility programs.
173
Which technology is commonly used for PANs?
Answer:
Bluetooth
Bluetooth is a wireless technology standard used for exchanging data between fixed and mobile devices over short distances, making it ideal for PANs.
174
What is the benefit of using a switch instead of a hub?
Answer:
Both a and b
By reducing collisions, a switch significantly increases the overall performance of the network.
175
A satellite internet connection generally has:
Answer:
High bandwidth and high latency
While satellite can provide decent bandwidth, it has very high latency due to the immense distance the signal must travel to the satellite and back.
176
What is a "dedicated server"?
Answer:
A server that performs only one specific function (e.g., a web server)
A dedicated server is optimized for a single purpose, which improves its performance and reliability for that task.
177
Nortel is a manufacturer of:
Answer:
Network equipment
Nortel was a major manufacturer of telecommunications and data networking equipment.
178
In which network model is there a central, dedicated server?
Answer:
Client-server model
The client-server model is defined by having a central server that provides resources and services to client computers.
179
Which model is considered "decentralized"?
Answer:
Peer-to-peer model
P2P is a decentralized architecture where there is no single point of control.
180
Which device learns the MAC addresses of connected devices?
Answer:
Switch
A switch builds a MAC address table to learn which devices are on which ports.