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
4101
A router connects:
Answer:
Two or more networks
The fundamental purpose of a router is to connect different networks.
4102
What is the main webpage of a website?
Answer:
Home Page
The homepage serves as the central entry point for site visitors, usually featuring navigation and key content.
4103
Which model is the basis for most of the services you use on the internet?
Answer:
Client-server model
The vast majority of internet services, including websites, email, streaming video, and online banking, use the client-server model.
4104
Which network type typically uses public infrastructure like telephone lines or fiber optic cables provided by a third party?
Answer:
WAN
WANs often rely on the infrastructure of telecommunication companies to connect locations over long distances.
4105
What is a "search operator"?
Answer:
A special character or word that can be used to refine a search query
Examples of search operators include quotation marks, minus signs, and "site:".
4106
Which network type is easier to install in an existing building?
Answer:
Wireless network
Wireless networks are much easier to set up in existing buildings as they don't require running cables through walls and ceilings.
4107
Which model is more anonymous?
Answer:
Anonymity is difficult to achieve in P2P networks.
In many P2P networks, the IP addresses of the peers are visible to each other, making them not very anonymous without additional tools like a VPN.
4108
The "kiosk mode" in some browsers is designed for:
Answer:
Public computers, such as in libraries or information kiosks
Kiosk mode typically locks down the browser to prevent users from accessing the underlying operating system or changing the browser settings.
4109
Which network has the smallest geographical range?
Answer:
PAN
A Personal Area Network (PAN) has the shortest range, typically covering just a few meters around an individual.
4110
What is the main disadvantage of a hub?
Answer:
It creates a single collision domain.
Because a hub broadcasts all data to all ports, it creates a single collision domain, which can lead to network congestion and poor performance.