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
3991
Which device is best for a small home network with a few computers?
Answer:
A combination of a switch and a router.
Most home networks use a wireless router, which is a combination of a router, a switch, and a wireless access point.
3992
Which of the following is a characteristic of a LAN?
Answer:
High data transfer rates
LANs typically offer high data transfer rates because of the short distances involved and the use of high-speed cabling like Ethernet.
3993
The domain name system (DNS) was introduced in:
Answer:
1983
The DNS was created in 1983 to make the Internet more user-friendly by allowing users to refer to computers by names rather than numerical IP addresses.
3994
A commonly used graphic format on the web is:
Answer:
GIF
GIF is a standard image format widely used online.
3995
Which browser was the first to pass the Acid3 test with a perfect score of 100/100?
Answer:
Opera
Opera was the first browser to achieve a perfect score on the Acid3 test, which tests a browser's compliance with web standards.
3996
The benefit of dial-up Internet is:
Answer:
Uses existing telephone lines
Dial-up utilizes standard phone lines for Internet access.
3997
Which of these is an example of circuit switching?
Answer:
Making a traditional landline phone call
The old telephone system works by creating a dedicated, end-to-end circuit for the duration of the call.
3998
In the URL "[https://www.example.com/page](https://www.google.com/search?q=https://www.example.com/page)", what is "[www.example.com](https://www.example.com)"?
Answer:
The domain name
The domain name is a human-readable address that points to a specific IP address on the internet.
3999
Which shortcut key is used to open a new tab in most web browsers?
Answer:
Ctrl + T
Ctrl + T opens a new tab, allowing users to browse multiple pages simultaneously.
4000
What are "organic search results"?
Answer:
The search results that are not paid advertisements
Organic search results are ranked based on their relevance to the search query.