Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
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
801
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:".
802
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.
803
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.
804
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.
805
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.
806
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.
807
Can a device have both a wired and a wireless connection?
Answer:
Yes
Many devices, such as laptops, have both an Ethernet port for a wired connection and a Wi-Fi adapter for a wireless connection.
808
Which device would you use to extend the range of a wireless network?
Answer:
A wireless repeater or extender
A wireless repeater is a device that takes an existing wireless signal and rebroadcasts it to extend its range.
809
What is a "first-party cookie"?
Answer:
A cookie that is set by the website you are currently visiting
First-party cookies are generally used for essential website functionality, such as keeping you logged in.
810
The term "network of networks" is often used to describe:
Answer:
The Internet
The Internet is a vast collection of interconnected networks, so it is often called a "network of networks."