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
551
What is the purpose of the "developer tools" built into most modern browsers?
Answer:
To help web developers inspect and debug websites
Developer tools provide a range of features for inspecting the HTML, CSS, and JavaScript of a webpage.
552
What is a "hard refresh" in a web browser?
Answer:
A way to reload a web page and force the browser to re-download all the files, including those that are stored in the cache
A hard refresh can be useful for fixing problems with websites that are not loading correctly.
553
How many collision domains does a 12-port switch create?
Answer:
12
Each port on a switch is its own collision domain, so a 12-port switch creates 12 collision domains.
554
The term "Internet of Things" (IoT) was coined by:
Answer:
Kevin Ashton
The term "Internet of Things" was coined by Kevin Ashton in 1999.
555
Which browser is the successor to the original Netscape Navigator?
Answer:
SeaMonkey
The SeaMonkey project is a community-driven effort to continue the development of the Netscape Communicator internet suite.
556
A home Wi-Fi network is an example of a:
Answer:
LAN
A home Wi-Fi network connects devices within a home, which is a small geographical area, so it is a LAN.
557
A network in a single room or building is a:
Answer:
LAN
A Local Area Network (LAN) is confined to a small area, such as a single room, a building, or a campus.
558
What is a key advantage of a switch over a hub?
Answer:
It reduces collisions.
By creating a separate collision domain for each port, a switch dramatically reduces the number of collisions on a network.
559
What is a potential issue with P2P file sharing?
Answer:
Copyright infringement and malware.
P2P networks are often used for the illegal distribution of copyrighted material, and downloading files from unknown peers can expose you to viruses and malware.
560
What is a major disadvantage of the client-server model?
Answer:
There is a single point of failure (the server).
If the central server goes down, the entire network may become unusable.