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
41
Which of the following is not a characteristic of a WAN?
Answer:
High speed
While WAN speeds are improving, they are generally slower than LANs due to the long distances involved.
42
Which network type would be used to provide internet access to a whole city?
Answer:
MAN
A city-wide internet service would be provided over a Metropolitan Area Network (MAN).
43
The "@" symbol in email addresses was introduced by:
Answer:
Ray Tomlinson
Ray Tomlinson implemented the first email program on the ARPANET system in 1971 and chose the "@" symbol to separate the user's name from the machine name.
44
A network that connects devices within a city is known as a:
Answer:
MAN
A Metropolitan Area Network (MAN) is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN).
45
An email system (e.g., Gmail) is an example of:
Answer:
Client-server model
Your email client (like a web browser or a mobile app) connects to a mail server to send and receive messages.
46
What is "malware"?
Answer:
All of the above
Malware is a broad category of software that includes viruses, worms, trojans, ransomware, spyware, and adware.
47
In HTML programming, the backend is typically __ and the frontend is __.
Answer:
Notepad - Internet Explorer
Notepad is used to write HTML (backend), while Internet Explorer displays it (frontend).
48
If your internet connection is slow, what is the first thing you should check?
Answer:
Both bandwidth and latency using a speed test
A speed test will give you a good idea of your current throughput (download/upload speeds) and latency (ping), which are the two main indicators of connection performance.
49
A web browser requesting a page from a web server is an example of:
Answer:
Client-server model
The web browser is the client, and the web server is the server that provides the requested webpage. This is a classic client-server interaction.
50
Where is data typically stored in a client-server network?
Answer:
On a central server
A key feature of the client-server model is centralized data storage, which makes backups and security easier to manage.