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What does 'HTTPS' in a website URL indicate?
- High-speed Transfer Protocol
- Hyper Text Transfer Protocol Secure
- Hosted Transfer Protocol System
- Hardware Tested Protocol Standard
Answer: Hyper Text Transfer Protocol Secure
HTTPS indicates that communication between browser and website is encrypted using SSL/TLS protocols. This protects data from eavesdropping and tampering. Users should look for the padlock icon and 'https://' when entering sensitive information online.
The digital platform that allows citizens to store driving license, vehicle registration, and other documents electronically is called ________.
Answer: DigiLocker
DigiLocker is a cloud-based platform under Digital India that enables citizens to store, share, and verify important documents digitally. Documents issued by registered authorities through DigiLocker have legal validity under the Information Technology Act, 2000.
Which technology uses quantum mechanical phenomena like superposition and entanglement for computation?
- Cloud Computing
- Quantum Computing
- Edge Computing
- Fog Computing
Answer: Quantum Computing
Quantum Computing uses qubits that can exist in superposition (0 and 1 simultaneously) and entanglement (correlated states) to solve certain problems exponentially faster than classical computers, with applications in cryptography, drug discovery, and optimization.
Wi-Fi and Internet are the same thing.
- True
- False
Answer: False
Wi-Fi is a wireless technology that allows devices to connect to a local network without cables. Internet is the global network of networks. Wi-Fi provides local wireless access; you still need an ISP connection to access the internet via Wi-Fi.
The organization that developed UPI system in India is ________.
Answer: NPCI
NPCI (National Payments Corporation of India) developed the Unified Payments Interface (UPI). NPCI also operates other payment systems like IMPS, RuPay, Aadhaar Enabled Payment System (AePS), and Bharat Bill Payment System (BBPS).
Which of the following is an input device?
- Monitor
- Printer
- Scanner
- Speaker
Answer: Scanner
Scanner is an input device that captures images, text, or objects and converts them into digital format. Monitor, printer, and speaker are output devices that display or present processed information to the user.
In cloud computing, 'SaaS' stands for Storage as a Service.
- True
- False
Answer: False
SaaS stands for Software as a Service, where applications are hosted by a provider and made available to customers over the internet (e.g., Google Workspace, Microsoft 365). Storage as a Service is a different cloud model, while IaaS and PaaS are other main categories.
Which ISRO mission was India's first interplanetary mission to Mars?
- Chandrayaan-1
- Mangalyaan
- Aditya-L1
- GSAT-6A
Answer: Mangalyaan
Mangalyaan (Mars Orbiter Mission), launched in 2013, made India the first Asian nation and fourth space agency globally to reach Mars orbit. It was completed at a cost of just $74 million, making it one of the least expensive Mars missions.
A type of malware that encrypts victim's files and demands payment for decryption key is called ________.
Answer: Ransomware
Ransomware is malicious software that encrypts files on victim's device and demands ransom (usually in cryptocurrency) for the decryption key. Prevention includes regular backups, updated antivirus, and avoiding suspicious email attachments.
Which SQL command is used to retrieve data from a database?
- INSERT
- UPDATE
- SELECT
- DELETE
Answer: SELECT
SELECT is the SQL command used to query and retrieve data from one or more tables. INSERT adds new records, UPDATE modifies existing records, and DELETE removes records. SELECT is the most frequently used command in database operations.
5G technology operates only on high-frequency mmWave spectrum above 24 GHz.
- True
- False
Answer: False
5G operates across three spectrum bands: low-band (<1 GHz) for wide coverage, mid-band (1-6 GHz) for balanced speed/coverage, and high-band/mmWave (24-100 GHz) for ultra-high speeds in dense areas. India primarily uses mid-band for 5G rollout.
The unique 12-digit identity number issued by UIDAI is called ________.
Answer: Aadhaar
Aadhaar is a 12-digit unique identification number issued by UIDAI to Indian residents based on biometric and demographic data. It enables targeted delivery of subsidies and services through Direct Benefit Transfer (DBT) system.
Which of the following is a symmetric encryption algorithm?
- RSA
- AES
- ECC
- Diffie-Hellman
Answer: AES
AES (Advanced Encryption Standard) is a symmetric algorithm using the same key for encryption and decryption. RSA, ECC, and Diffie-Hellman are asymmetric algorithms using public-private key pairs. AES is widely used for securing sensitive data.
1 Kilobyte (KB) is exactly equal to 1000 bytes in computer memory measurement.
- True
- False
Answer: False
In binary system used by computers, 1 KB = 1024 bytes (2^10). The decimal approximation of 1000 bytes is used by storage manufacturers, causing confusion. IEC standards now use KiB (Kibibyte) for 1024 bytes to avoid ambiguity.
The technology that enables machines to learn from data without being explicitly programmed is called ________ Learning.
Answer: Machine
Machine Learning is a subset of Artificial Intelligence where algorithms improve automatically through experience and data. It includes supervised, unsupervised, and reinforcement learning approaches used in recommendation systems, fraud detection, and more.
Which protocol is used to convert domain names like 'google.com' into IP addresses?
- HTTP
- FTP
- DNS
- SMTP
Answer: DNS
DNS (Domain Name System) translates human-readable domain names into numerical IP addresses that computers use to identify each other on the network. Without DNS, users would need to remember IP addresses like 142.250.189.206.
UPI transactions can only be performed during banking hours (9 AM to 5 PM).
- True
- False
Answer: False
UPI (Unified Payments Interface) operates 24x7x365, including weekends and bank holidays. This round-the-clock availability is one of its key advantages over traditional NEFT/RTGS systems which have time restrictions.
Which ISRO launch vehicle is known as the 'workhorse of India' for launching satellites into polar orbits?
- GSLV Mk III
- PSLV
- ASLV
- SSLV
Answer: PSLV
PSLV (Polar Satellite Launch Vehicle) is called ISRO's workhorse due to its reliability in launching earth observation and remote sensing satellites into polar sun-synchronous orbits. It has successfully launched Chandrayaan-1 and Mangalyaan.
The full form of 'OTP' commonly used in two-factor authentication is ________.
Answer: One Time Password
OTP stands for One Time Password - a automatically generated numeric or alphanumeric string that authenticates a user for a single transaction or login session, enhancing security beyond static passwords.
Which component is known as the temporary memory of a computer that loses data when power is turned off?
- ROM
- Hard Disk
- RAM
- Cache
Answer: RAM
RAM (Random Access Memory) is volatile memory used for temporary storage of data and machine code currently being used. It loses all data when power is switched off, unlike ROM or hard disk which are non-volatile.