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
491
Which of the following is a top-level domain?
Answer:
.com
A top-level domain (TLD) is the last segment of a domain name, located after the final dot. `.com` is one of the original and most common TLDs, indicating a commercial entity. Other examples include `.org`, `.net`, and `.gov`.
492
What is a key advantage of the client-server model for businesses?
Answer:
Centralized control and security
For a business, the ability to centrally manage data, users, and security is the most significant advantage of the client-server model.
493
Which device operates at the Network layer (Layer 3) of the OSI model?
Answer:
Router
A router operates at the Network layer and uses IP addresses to forward data between different networks.
494
Which type of network is generally more secure?
Answer:
Wired network
Wired networks are inherently more secure because they require a physical connection, making it harder for unauthorized users to access the network.
495
Which network type is most likely to use satellite communication?
Answer:
WAN
WANs use a variety of long-distance communication technologies, including satellite links, to connect remote locations.
496
Which organization is responsible for developing web standards?
Answer:
The World Wide Web Consortium (W3C)
The W3C is the main international standards organization for the World Wide Web, founded by Tim Berners-Lee.
497
In the URL "[https://www.example.com/search?q=query](https://www.google.com/search?q=https://www.example.com/search%3Fq%3Dquery)", what is "?q=query"?
Answer:
The query string
The query string is used to pass data to the web server, often from a form submission or a search query.
498
What is "two-factor authentication" (2FA)?
Answer:
A security process in which you provide two different authentication factors to verify yourself
2FA adds an extra layer of security to your accounts, making it much more difficult for hackers to gain access even if they have your password.
499
What are some examples of fact-checking websites?
Answer:
All of the above
It is a good idea to consult multiple sources when you are trying to verify the accuracy of information.
500
How can you request that a website delete your PII?
Answer:
All of the above
You have the right to have your personal data deleted in certain circumstances.