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
3871
The concept of a graphical user interface (GUI) was developed at:
Answer:
Xerox PARC
Many of the key technologies that made personal computing and the graphical web browser possible were developed at Xerox's Palo Alto Research Center (PARC) in the 1970s.
3872
What is the "autofill" feature in web browsers?
Answer:
A feature that automatically fills in forms with your personal information, such as your name, address, and credit card number
Autofill can be convenient, but it can also be a security risk if your computer is lost or stolen.
3873
What is the benefit of using a switch instead of a hub?
Answer:
Both a and b
By reducing collisions, a switch significantly increases the overall performance of the network.
3874
What technology is used to link documents together on the WWW?
Answer:
Hypertext
Hypertext is text displayed on a computer display or other electronic devices with references (hyperlinks) to other text that the reader can immediately access.
3875
What is "cookie syncing"?
Answer:
A process that allows advertisers to share cookie data with each other
Cookie syncing allows advertisers to build a more complete profile of your interests and browsing habits.
3876
What is the purpose of the "robots.txt" file on a website?
Answer:
To provide instructions to search engine crawlers about which pages to index
The robots.txt file is a simple text file that website owners can use to manage crawler traffic to their site.
3877
"Tethering" your phone to your laptop creates a:
Answer:
Wireless PAN
Tethering creates a small, personal wireless network to share your phone's internet connection.
3878
How many collision domains does a 12-port hub create?
Answer:
1
A hub creates a single collision domain because all ports are part of the same shared bandwidth.
3879
The Internet is the largest example of a:
Answer:
WAN
The Internet is a global system of interconnected computer networks, making it the ultimate Wide Area Network (WAN).
3880
What is the rendering engine used by Google Chrome?
Answer:
Blink
Blink is a web browser engine developed by Google as part of the Chromium project. It is used by Chrome, Edge, Opera, and other Chromium-based browsers.