General Knowledge MCQs
Topic Notes: General Knowledge
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
1
What is 'Cyber-physical System' (CPS)?
Answer:
A computer system in which a mechanism is controlled or monitored by computer-based algorithms
CPS involves transdisciplinary approaches where physical and software components are deeply intertwined (e.g., smart grid, autonomous automobile).
2
What is 'Lossless Compression'?
Answer:
Compression that allows the original data to be perfectly reconstructed
Lossless compression is a class of data compression algorithms that allows the original data to be perfectly reconstructed from the compressed data (e.g., ZIP, PNG).
3
What is a 'Perpetual License' for software?
Answer:
A license that allows the user to use the software indefinitely
A perpetual license authorizes the user to use the software indefinitely, usually for a specific version, as opposed to a subscription model.
4
What is 'CAPTCHA' used for?
Answer:
To distinguish between human and machine input
CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a challenge-response test used to determine whether or not the user is human.
5
What is 'OCR'?
Answer:
Optical Character Recognition
OCR is the electronic or mechanical conversion of images of typed, handwritten, or printed text into machine-encoded text.
6
What is 'OpenID'?
Answer:
An open standard and decentralized authentication protocol
OpenID allows users to be authenticated by co-operating sites (known as Relying Parties) using a third-party service, eliminating the need for multiple passwords.
7
What is 'Firmware'?
Answer:
Specific software that provides low-level control for a device's hardware
Firmware is a specific class of computer software that provides the low-level control for a device's specific hardware (e.g., BIOS, router software).
8
What is a 'Logic Bomb'?
Answer:
Malicious code inserted into a program that executes when specific conditions are met
A logic bomb is a piece of code intentionally inserted into a software system that will set off a malicious function when specified conditions are met (e.g., a specific date).
9
What is the 'Dark Web'?
Answer:
A part of the web not indexed by search engines and accessible only via special software
The Dark Web is the World Wide Web content that exists on darknets, overlay networks that use the Internet but require specific software (like Tor) to access.
10
What does 'HDMI' stand for?
Answer:
High-Definition Multimedia Interface
HDMI is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data.