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
191
Which of these is a Layer 3 switch?
Answer:
A switch that can perform some routing functions
A Layer 3 switch is a hybrid device that can act as both a switch and a router.
192
What is a "digital certificate"?
Answer:
All of the above
Digital certificates are used to secure websites with HTTPS.
193
The "sandbox" security feature in modern browsers is designed to:
Answer:
Isolate web pages and processes from each other and the rest of the system
Sandboxing helps to prevent malicious code on a webpage from harming your computer.
194
Which model is more expensive to implement initially?
Answer:
Client-server model
The client-server model requires the purchase of a dedicated server and specialized server software, making it more expensive upfront.
195
What should you do if you are being cyberbullied?
Answer:
All of the above
It is important to seek help if you are being cyberbullied.
196
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.
197
For online gaming, which is more important?
Answer:
Low latency
In gaming, a low latency (ping) is crucial for a responsive experience, as it reduces the delay between your actions and the game's response.
198
What is the primary hardware component of a router?
Answer:
A CPU
A router is essentially a specialized computer with a CPU, memory, and multiple network interfaces.
199
What is packet switching?
Answer:
A method of grouping data into packets for transmission over a digital network
Packet switching breaks down a message into smaller pieces called packets, which are then sent independently over the network and reassembled at the destination.
200
What does UDP stand for?
Answer:
User Datagram Protocol
UDP is a connectionless protocol that is part of the TCP/IP suite. It is often used for applications like online gaming and streaming where speed is more important than reliability.