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
3911
In packet switching, do all packets in a single message have to take the same route?
Answer:
No, they can take different routes.
This is a key feature of packet switching. Each packet is routed independently, which allows the network to adapt to changing conditions and route around failures or congestion.
3912
What is the browser cache used for?
Answer:
To temporarily store parts of web pages, such as images and scripts, to make them load faster on subsequent visits
The cache helps to improve the performance of your browser by reducing the amount of data that needs to be downloaded from the internet.
3913
The feature that shows all the web pages you have visited is called the:
Answer:
History list
The history list records and displays websites previously accessed.
3914
Who is often credited with the invention of the World Wide Web?
Answer:
Tim Berners-Lee
While working at CERN in 1989, British scientist Tim Berners-Lee invented the World Wide Web. He wrote the first web browser, web server, and the first web page.
3915
What is your browser history?
Answer:
A list of all the websites you have visited
Your browser history can be useful for finding a page that you have visited before, but it can also be a privacy concern.
3916
Which device uses MAC addresses to make forwarding decisions?
Answer:
Switch
A switch builds a MAC address table to learn which devices are connected to which ports, allowing it to forward frames only to the intended recipient.
3917
What is the role of a server administrator?
Answer:
To manage the server and the network
In a client-server model, a network administrator is needed to manage the server, user accounts, security, and backups.
3918
Which of these browsers is based on the Chromium open-source project?
Answer:
Microsoft Edge
The current version of Microsoft Edge is built on the Chromium open-source project, which is also the basis for Google Chrome.
3919
Internet message packets:
Answer:
Take different paths based on availability
Packets are dynamically routed based on network conditions.
3920
Which network type is generally cheaper to set up for a small area?
Answer:
Wireless network
For a small home or office, a single wireless router can be cheaper and easier to set up than running Ethernet cables to every device.