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
411
Which model is more scalable for a large number of users?
Answer:
Client-server model
The client-server model is more scalable because you can upgrade the server to handle more clients, and the administration is centralized.
412
HTML stands for
Answer:
Hyper Text Markup Language
HTML is the language used to create and structure web pages.
413
What is the "dark web"?
Answer:
Both b and c
The dark web is a small part of the deep web, and it is often associated with illegal activities due to the anonymity it provides.
414
In a home network, the device provided by your ISP that connects to the internet is a:
Answer:
Modem
A modem (modulator-demodulator) is the device that converts the signal from your ISP into a format that your computer can understand.
415
A word on a webpage that opens another document when clicked is called a:
Answer:
Hyperlink
Hyperlinks create navigation points within or between web pages.
416
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.
417
What is a "distributed denial-of-service" (DDoS) attack?
Answer:
A DoS attack that is launched from multiple computers
DDoS attacks are more powerful and more difficult to defend against than regular DoS attacks.
418
What is a "new top-level domain" (nTLD)?
Answer:
A gTLD that was introduced after 2012
There are now hundreds of nTLDs available, such as ".app", ".blog", and ".shop".
419
What is another name for junk email?
Answer:
Spam
Spam refers to unsolicited and often unwanted email messages.
420
The fundamental trade-off in network design is often between:
Answer:
All of the above
Network design involves balancing many competing factors. For example, a very high-bandwidth, low-latency connection (like dedicated fiber) is very expensive. Similarly, very high security can sometimes make a network harder to use.