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
211
Who invented the programming language JavaScript?
Answer:
Brendan Eich
JavaScript was created by Brendan Eich in 1995 while he was working at Netscape Communications.
212
A device that forwards data packets along networks is a:
Answer:
Router
This is another way of describing the function of a router.
213
What is a "man-in-the-middle" (MITM) attack?
Answer:
An attack where the attacker secretly relays and possibly alters the communication between two parties who believe they are directly communicating with each other
MITM attacks are a serious threat to your privacy and security.
214
What is a "data breach"?
Answer:
An incident in which sensitive, protected, or confidential data has been accessed, disclosed, or used by an unauthorized individual
Data breaches are a serious threat to your privacy and security.
215
The first emoticon :-) was used by:
Answer:
Scott Fahlman
In 1982, Scott Fahlman proposed the use of :-) and :-( as emoticons on the Carnegie Mellon University computer science general board.
216
What is a potential downside of using incognito mode?
Answer:
It may not be as private as you think
As mentioned above, your ISP and the websites you visit can still see your activity.
217
What is a MAC address?
Answer:
The physical address of a network interface card (NIC)
A MAC (Media Access Control) address is a unique identifier assigned to a network interface controller for use as a network address in communications within a network segment.
218
What are some of the things you should look for in a ToS agreement?
Answer:
All of the above
A good ToS agreement should be fair and reasonable.
219
Internet Explorer and Safari are examples of what?
Answer:
Web browsers
Both Internet Explorer and Safari are popular web browsers used to access and view websites on the internet.
220
Which device has now largely been replaced by switches in modern networks?
Answer:
Hubs
Due to their inefficiency and the creation of collision domains, hubs have been almost completely replaced by switches.