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
3931
What should you do if you think your data has been breached?
Answer:
All of the above
It is important to take immediate action to protect yourself after a data breach.
3932
A wired connection is also known as an:
Answer:
Ethernet connection
Ethernet is the standard for wired connections.
3933
The concept of a global network of computers was first proposed by:
Answer:
J.C.R. Licklider
In 1962, J.C.R. Licklider of MIT conceived of a "Galactic Network" of interconnected computers, a vision that laid the groundwork for the Internet.
3934
What is circuit switching?
Answer:
A method where a dedicated physical connection is established for the duration of a communication
The traditional telephone network is an example of a circuit-switched network.
3935
Which type of cable is most commonly used in modern wired Ethernet networks?
Answer:
Twisted-pair cable
Unshielded Twisted Pair (UTP) cables, such as Cat5e and Cat6, are the standard for most wired LANs.
3936
The term "cyberspace" was coined by:
Answer:
William Gibson
Science fiction author William Gibson coined the term "cyberspace" in his 1982 short story "Burning Chrome" and popularized it in his 1984 novel "Neuromancer."
3937
What is the biggest security risk for wireless networks?
Answer:
Unauthorized access
Because wireless signals can travel through walls, it is possible for unauthorized users to access the network if it is not properly secured.
3938
In the highway analogy for networking, latency is the:
Answer:
Time it takes for a single car to travel from the start to the end of the highway
Latency represents the travel time for a single piece of data, regardless of how much other data is being sent.
3939
What happens to a packet when it arrives at a router?
Answer:
The router examines the packet's destination address and sends it on the best path.
This is the fundamental process of routing in a packet-switched network.
3940
What does the acronym 'WWW' stand for?
Answer:
World Wide Web
WWW stands for World Wide Web, which is an information space where documents and other web resources are identified by Uniform Resource Locators (URLs), interlinked by hypertext links, and can be accessed via the Internet.