431 MCQ Questions in english

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Group C IAS PCS Lower PCS Railway SSC Bank UKPSC Police Group D FCI LIC CAT MAT GMAT TET CTET CUET B. Ed Bank PO Bank Special Officer CTET UTET

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Group C IAS PCS Lower PCS Railway SSC Bank UKPSC Police Group D FCI LIC CAT MAT GMAT TET CTET CUET B. Ed Bank PO Bank Special Officer CTET UTET

431 MCQ Questions in english हिन्दी

263. Indexing in DBMS:

A. Duplicates tables

B. Speeds up queries by quick lookups

C. Deletes redundant data

D. Compresses records

Improves retrieval performance at cost of space.

262. NoSQL databases are designed for:

A. Relational data only

B. Complex joins

C. Scalability and flexibility

D. Standalone desktop use

Schema-less storage like JSON docs or key-value pairs.

261. ACID properties ensure:

A. Data compression

B. Transaction reliability

C. Speed

D. UI design

Atomicity, consistency, isolation, durability.

260. A primary key:

A. Encrypts data

B. Uniquely identifies table records

C. Sorts tables

D. Stores passwords

Ensures each record is unique.

259. SQL stands for:

A. Structured Query Language

B. Simple Query Link

C. Secure Query Layer

D. Software Quality Level

Used to manage relational databases.

258. SQL stands for:

A. Structured Query Language

B. Simple Query Link

C. Secure Query Layer

D. Software Quality Level

Used to manage relational databases.

257. API stands for:

A. Application Program Interface

B. Application Programming Identity

C. Automatic Program Interface

D. Abstract Programming Instruction

Interface for software component interaction.

256. RAID level that mirrors data:

A. RAID 0

B. RAID 1

C. RAID 5

D. RAID 6

RAID 1 — redundancy through duplication.

255. Virtual memory uses:

A. Faster RAM

B. Hard disk as RAM extension

C. GPU memory

D. Cache exclusively

Enables running larger programs than physical RAM.

254. Multitasking OS can run:

A. Only one program

B. Multiple programs simultaneously

C. Disk management only

D. Device control

Handles concurrent processes.

253. Two-factor authentication adds:

A. Extra password

B. Time requirement

C. Second form of identity verification

D. Captcha

Enhances account security (e.g. code + password).

252. A firewall is used to:

A. Encrypt data

B. Filter incoming/outgoing network traffic

C. Host websites

D. Manage memory

Network security barrier

251. Phishing is:

A. Malware

B. Social engineering attack

C. Security patch

D. Antivirus software

deceitful emails/websites to steal info.

250. What does VPN do?

A. Speeds up internet

B. Creates encrypted private network over public internet

C. Scans for viruses

D. Manages web cookies

Protects privacy via secure tunneled connection.

249. Which is a symmetric encryption algorithm?

A. RSA

B. AES

C. Diffie-Hellman

D. ECC

AES — same key for encryption/decryption.

248. DNS maps:

A. IP → MAC

B. Port → Service

C. Domain names → IP addresses

D. URL → HTML

Translates human-friendly names to IPs.

247. HTTP uses which port by default?

A. 20

B. 20

C. 80

D. 443

Port 80 — standard web traffic.

246. IP address uniquely identifies:

A. A network

B. A host on the internet

C. A protocol

D. A port

End device in network communication.

245. TCP stands for:

A. Transmission Control Protocol

B. Transfer Control Process

C. Total Communication Procedure

D. Transit Channel Protocol

Reliable, connection-oriented transport protocol.

244. OSI model has how many layers?

A. 5

B. 6

C. 7

D. 8

Seven — layers from physical to application.

243. A full binary tree of height h has:

A. 2^h – 1 nodes

B. 2^(h+1) – 1 nodes

C. h nodes

D. 2h nodes

Maximum nodes in perfectly balanced tree.

242. Merge sort’s time complexity is:

A. O(n)

B. O(log n)

C. O(n log n)

D. O(n²)

Efficient, stable sort.

241. Big O of binary search on sorted array:

A. O(n²)

B. O(log n)

C. O(n)

D. O(1)

Logarithmic time — halving search space each step.

240. Which structure uses key-value pairs?

A. Array

B. Stack

C. Hash map

D. Queue

Hash map — fast lookups.

239. Who was the longest-serving Chief Minister of Uttar Pradesh?

A. Mayawati

B. Akhilesh Yadav

C. Yogi Adityanath

D. Sampurnanand

Explanation: Yogi Adityanath became the longest-serving Chief Minister in UP’s history by surpassing previous leaders like Sampurnanand. His second term and uninterrupted leadership since 2017 contribute to this record. His tenure is marked by policy and infrastructure reforms.

238. The Chief Secretary of Uttar Pradesh is appointed by:

A. The Governor

B. The Chief Minister

C. The President

D. The Cabinet Secretary of India

Explanation: The Chief Secretary is the top bureaucrat in the state and is appointed by the Chief Minister. Though officially under the Governor’s name, the appointment is made on CM’s advice. The role includes coordinating all administrative functions.

237. The first woman Chief Minister of Uttar Pradesh was:

A. Indira Gandhi

B. Mayawati

C. Anandiben Patel

D. Sucheta Kripalani

Explanation: Sucheta Kripalani became the first woman Chief Minister of Uttar Pradesh in 1963. She was also the first woman to hold such a post in any Indian state. She played a significant role in the independence movement and in state politics.

236. Which of the following Chief Ministers of Uttar Pradesh later became the Prime Minister of India?

A. Mulayam Singh Yadav

B. Kalyan Singh

C. Chaudhary Charan Singh

D. Rajnath Singh

Explanation: Charan Singh served as the Chief Minister of UP and later became the fifth Prime Minister of India. He was a leader of the farmer community and promoted agrarian policies. His tenure as PM was brief but historically important.

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