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Generate QuizTechnology – Easy Level – GK Questions
Free practice for SSC, UPSC, Banking & Railway exams. No login required.
What does 'WWW' stand for in web addresses?
- World Wide Web
- World Web Wide
- Wide World Web
- Web World Wide
Answer: World Wide Web
WWW (World Wide Web) is an information system where documents and resources are accessed via internet using URLs and hyperlinks. Invented by Tim Berners-Lee in 1989. Web pages are written in HTML, transmitted via HTTP/HTTPS, and displayed by web browsers. Web is a service running on the internet infrastructure.
The device that converts digital signals from computer to analog for telephone line transmission is called ________.
- Modem
- Middle
- Serverless
- Transparency
Answer: Modem
Modem (Modulator-Demodulator) converts digital data from computers to analog signals for transmission over telephone lines (modulation) and vice versa at receiving end (demodulation). Though largely replaced by broadband, modems established foundational concepts for digital communication over analog infrastructure.
The binary number system uses only two digits: 0 and 1.
- True
- False
Answer: True
Binary (base-2) system uses only digits 0 and 1, corresponding to off/on states in digital circuits. All computer data and instructions are ultimately represented in binary. Decimal (base-10), hexadecimal (base-16) are used for human readability but converted to binary for processing.
What is the name of India's first indigenous aircraft carrier that uses indigenous navigation systems?
- INS Vikrant
- INS Vikramaditya
- INS Chennai
- INS Kolkata
Answer: INS Vikrant
INS Vikrant (IAC-1) is India's first indigenously designed and built aircraft carrier, commissioned in 2022. It incorporates Indian-developed systems including navigation, combat management, and communication. Represents a milestone in India's defense self-reliance (Atmanirbhar Bharat) and technological capability.
UPI transactions require the recipient's bank account number and IFSC code to be entered manually every time.
- True
- False
Answer: False
UPI uses Virtual Payment Addresses (VPAs) like name@bank, eliminating need to enter account number/IFSC repeatedly. Users can also save beneficiaries, scan QR codes, or use mobile numbers linked to UPI. This simplifies payments and reduces errors compared to traditional NEFT/IMPS transfers.
Which symbol is used to denote comments in Python?
- //
- /*
- #
- --
Answer: #
In Python, # denotes single-line comments. Multi-line comments use triple quotes (''' or """). Other languages: // and /* */ in C/Java/JavaScript, -- in SQL. Comments improve code readability and documentation but are ignored by compilers/interpreters during execution.
Which of the following is an example of system software?
- MS Word
- Google Chrome
- Windows OS
- VLC Player
Answer: Windows OS
System software manages hardware and provides platform for applications. Examples: Operating Systems (Windows, Linux), device drivers, utilities, compilers. Application software performs user tasks: Word (document editing), Chrome (web browsing), VLC (media playback). OS is foundational system software.
DigiLocker documents have the same legal validity as physical original documents under the IT Act.
- True
- False
Answer: True
As per Rule 9A of Information Technology (Preservation and Retention of Information by Intermediaries providing Digital Locker facilities) Rules, 2016, documents issued by registered authorities through DigiLocker are legally valid and equivalent to physical originals under the IT Act, 2000.
What does 'SIM' stand for in mobile phones?
- Single Identity Module
- Subscriber Identity Module
- Secure Information Memory
- System Integration Module
Answer: Subscriber Identity Module
SIM (Subscriber Identity Module) is a small chip that stores subscriber information, network authentication keys, contacts, and SMS. It identifies and authenticates users on cellular networks. eSIM is an embedded digital SIM that can be programmed remotely without physical card replacement.
The permanent memory in a computer that retains data even when power is off is called ________.
- ROM
- SSH
- IN-SPACe
- AePS
Answer: ROM
ROM (Read-Only Memory) is non-volatile memory that stores firmware like BIOS/UEFI. Data is written during manufacturing and generally cannot be modified by users. Unlike RAM which is volatile, ROM retains critical boot instructions even after power loss. Variants include PROM, EPROM, EEPROM.
The national digital repository for academic credits under NEP 2020 is called Academic Bank of ________.
- Digital Personal Data Protection / DPDP
- Credits
- Engineering Task Force / IETF
- CARTOSAT / EOS
Answer: Credits
Academic Bank of Credits (ABC) stores academic credits earned by students from recognized institutions digitally. Enables credit transfer, multiple entry-exit options, and lifelong learning under NEP 2020. Integrated with DigiLocker for easy access. Important for education reform and digital infrastructure questions.
DIKSHA is a national platform for school education content and teacher training under NEP 2020.
- True
- False
Answer: True
DIKSHA (Digital Infrastructure for Knowledge Sharing) is a unified platform by Ministry of Education offering e-content, QR-coded textbooks, teacher training modules, and assessment tools. Supports multilingual access and offline usage. Critical component of NEP 2020's technology-enabled education transformation.
Which protocol is used for secure communication between web browsers and servers?
- HTTP
- FTP
- HTTPS
- SMTP
Answer: HTTPS
HTTPS (HTTP Secure) encrypts data using SSL/TLS to protect confidentiality and integrity during transmission. Essential for login pages, payments, and sensitive data. HTTP transmits in plaintext. Browsers mark non-HTTPS sites as 'Not Secure'. Fundamental for web security awareness in all government exams.
The Linux command to list all files including hidden ones is ls ________.
- Stratified
- Telecommunication / ITU
- Continuous
- -a
Answer: -a
ls -a lists all files including hidden ones (starting with .). ls -l shows detailed list; ls -h makes sizes human-readable; ls -la combines both. Hidden files store configuration data. Understanding command-line flags is fundamental for Linux administration questions in technical exams.
JavaScript is primarily executed on the server-side in web applications.
- True
- False
Answer: False
JavaScript was designed for client-side execution in web browsers to enable interactive web pages. Server-side JavaScript (Node.js) is possible but not the primary use case. Understanding client-server architecture is fundamental for web technology questions in SSC and banking exams.
The HTML tag used to create a hyperlink is ________.
- P4 / Programmable
- Combined Gas and Gas (COGAG)
- <a>
- Accessibility
Answer: <a>
The anchor tag <a> with href attribute creates hyperlinks in HTML. Example: <a href='https://example.com'>Link</a>. Fundamental for web development basics tested in SSC and Railway exams. Other tags: <img> for images, <p> for paragraphs, <div> for containers.
In Python, lists are mutable while tuples are immutable.
- True
- False
Answer: True
Lists ([]) can be modified after creation: append, remove, change elements. Tuples (()) cannot be changed once created, making them hashable and usable as dictionary keys. Immutability provides safety for fixed data, while mutability offers flexibility for dynamic collections. Choosing appropriately improves code correctness and performance.
Which data type is used to store true/false values in most programming languages?
- int
- char
- boolean
- float
Answer: boolean
Boolean data type represents two values: true or false. Named after George Boole, founder of Boolean algebra. Used in conditional statements, loops, and logical operations. Some languages (C) use integers (0=false, non-zero=true), but modern languages (Java, Python, C#) have dedicated bool type for clarity and type safety.
Ohm's Law states that current through a conductor is directly proportional to voltage and inversely proportional to resistance.
- True
- False
Answer: True
Ohm's Law: I = V/R, where I=current (Amperes), V=voltage (Volts), R=resistance (Ohms). Fundamental for circuit analysis, component selection, and troubleshooting. Applies to ohmic materials at constant temperature. Non-ohmic devices (diodes, transistors) have non-linear V-I characteristics requiring advanced modeling.
Which operator is used to check equality of values in most programming languages?
- =
- ==
- ===
- :=
Answer: ==
Double equals (==) checks value equality in C, Java, Python, JavaScript. Single equals (=) is assignment operator. Triple equals (===) in JavaScript checks value AND type equality. := is assignment in Pascal/Go. Understanding operator precedence and type coercion is crucial for writing correct conditional logic in exams and real code.