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
3811
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.
3812
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.
3813
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.
3814
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.
3815
Which device has now largely been replaced by switches in modern networks?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.
3816
Why might a video streaming service use a protocol like UDP?
Answer:
Because retransmitting a lost packet of video data from a few seconds ago is pointless.
For real-time streaming, it is better to just drop a lost frame and continue with the live stream rather than waiting for a retransmission and causing a delay.
3817
A "hop" in networking refers to:
Answer:
The passage of a packet through a router
Each time a packet is forwarded by a router, it is considered one hop.
3818
What is "web beacon"?
Answer:
A small, invisible image that is embedded in a web page or email to track your activity
Web beacons are often used by advertisers and email marketers.
3819
Which network type would be used to connect the different branches of a bank in a city?
Answer:
MAN
A MAN would be the most appropriate choice to connect multiple bank branches within the same city, as it is designed for this scale of networking.
3820
Which technology is the basis for communication on the internet?
Answer:
Packet switching
The internet is a massive packet-switched network.