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
421
In the highway analogy for networking, bandwidth is the:
Answer:
Number of lanes on the highway
More lanes (higher bandwidth) allow more cars (data) to travel at the same time.
422
What does the "do not track" (DNT) feature in a browser do?
Answer:
It sends a request to websites asking them not to track your browsing activity.
The DNT header is a request, and websites are not required to honor it.
423
What is a key feature of a MAN?
Answer:
It covers a geographic area larger than a LAN but smaller than a WAN.
The defining characteristic of a MAN is its intermediate size, fitting between a LAN and a WAN.
424
Which network type has the highest latency?
Answer:
WAN
Due to the long distances that data has to travel, WANs typically have the highest latency compared to other network types.
425
Which network type has the lowest data transfer rates?
Answer:
PAN
PANs, while convenient for personal devices, typically have lower data transfer rates than LANs, MANs, and WANs.
426
What is a "breadcrumb trail"?
Answer:
A navigation aid that shows you your current location within a website's hierarchy
Breadcrumb trails are often found on websites with a deep and complex structure.
427
What is a disadvantage of packet switching?
Answer:
It can have variable delays (jitter).
Because packets can take different routes and experience different levels of congestion, they can arrive with inconsistent delays, which is a problem for real-time communication.
428
Which browser is developed by Apple and is the default browser on its devices?
Answer:
Safari
Safari is a graphical web browser developed by Apple, based on the WebKit engine. It is the default browser on Apple devices.
429
What is the purpose of the "password manager" in a web browser?
Answer:
All of the above
A password manager can be a very useful tool for improving your online security.
430
What is "deep linking"?
Answer:
Linking to a specific page or piece of content on a website, rather than the home page
Deep linking is a common practice on the web.