9,654 RAS Prelims practice MCQs with the correct answer and a clear explanation for each. Filter by subject and chapter.
Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.
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RAS PrelimsRajasthan History, Art and Culture · Sources of Rajasthan History
Q1271. Consider the following statements regarding historical sources: I. Epigraphy is the study of inscriptions. II. Numismatics is the study of coins. III. ‘Vakil Reports’ were sent by Mughal emperors to Rajput kings. IV. ‘Khyats’ were typically written in prose and documented the history of regional dynasties. V. Foreign travellers like Bernier provide an outsider’s perspective on Rajput participation in Mughal politics. Which of the above statement(s) is/are correct?
Explanation
Historical research relies on various specialized studies. Epigraphy and numismatics provide hard data from inscriptions and coins. Khyats offer prose narratives of regional history, while foreign travelers like Bernier provide external perspectives. However, Vakil Reports were actually sent by Rajput envoys to their own kings from the Mughal court, not from emperors to kings, making the third statement in the original list historically incorrect in its direction.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q1272. Which of the following is not a technology or tool typically used for handling Big Data?
Explanation
Handling Big Data requires specialized tools like Apache Spark for fast processing, NoSQL databases for flexible storage, and HDFS for distributed file management. These technologies are designed to manage the unique challenges of scale and variety. Microsoft Paint, conversely, is a simple graphics editing application for individual images. It serves no function in the complex ecosystem of data.
RAS PrelimsRajasthan History, Art and Culture · Sources of Rajasthan History
Q1273. Match List I with List II:
Historical Text
Author
A. Padmavat
i. Malik Muhammad Jayasi
B. Raj Ratnakar
ii. Sadashiv
C. Nainsi ri Khyat
iii. Muhnot Nainsi
D. Bikaner ri Khyat
iv. Dayaldas
Choose the correct code:
Explanation
Malik Muhammad Jayasi authored Padmavat, a famous poem about the siege of Chittorgarh. Sadashiv wrote Raj Ratnakar, while Muhnot Nainsi is known for his extensive Khyat. Dayaldas authored the Bikaner ri Khyat. Each of these literary works represents a different genre and period, yet they all contribute significantly to our understanding of the cultural and political history of the various regions and dynasties within Rajasthan.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q1274. What is a direct organizational effect of utilizing predictive analytics in business operations?
Explanation
Utilizing predictive analytics allows businesses to move beyond historical reporting to actively forecasting future trends and consumer behaviors. By identifying likely outcomes, organizations can optimize their marketing strategies, improve supply chain management, and mitigate potential risks. This forward-looking approach enhances decision-making and provides a competitive advantage by allowing companies to anticipate market changes before they occur in reality.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q1275. The core concept of Blockchain technology is best described as:
Explanation
Blockchain technology is fundamentally a distributed and decentralized digital ledger that records transactions across many computers. This structure ensures that the data is transparent, secure, and nearly impossible to alter retroactively without the consensus of the network. By eliminating the need for a central authority, blockchain provides a powerful mechanism for establishing trust and integrity in digital exchanges.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q1276. Which pair correctly links a blockchain mechanism to its purpose?
Explanation
Each block in a blockchain is connected to the previous one using a cryptographic hash function, which creates a unique digital fingerprint for the data. This link ensures immutability, as changing any information would alter the hash and break the chain. While consensus algorithms and digital wallets are also important, the hash function is the primary mechanism for maintaining the.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q1277. Identify the incorrect statement regarding the "immutability" of a blockchain.
Explanation
Immutability is a cornerstone of blockchain, meaning that once a transaction is recorded, it is extremely difficult to change. Altering a block would require re-calculating the hashes for every subsequent block, which is computationally prohibitive in a decentralized network. This feature provides security and prevents fraud. Contrary to common misunderstandings, it does not allow for easy editing.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q1278. Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Blockchain technology can significantly reduce the need for intermediaries like banks in financial transactions. Reason (R): Blockchain uses cryptographic proof and decentralized consensus to establish trust directly between transacting parties.
Explanation
Blockchain technology empowers direct transactions between parties by using cryptographic proof and decentralized consensus instead of relying on intermediaries like banks. This peer-to-peer approach can significantly reduce costs and increase the speed of financial exchanges. By establishing trust through the architecture of the network itself, blockchain offers a fundamental shift in how global value and information.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q1279. In blockchain terminology, what is the very first block of a blockchain network called?
Explanation
The very first block in any blockchain network is known as the Genesis Block. It is unique because it does not refer to a previous block and is typically hardcoded into the software that defines the network. This block serves as the foundation for the entire subsequent chain, establishing the initial state and parameters for all following transactions and.
RAS PrelimsScience and Technology · Computers, Information and Communication Technology
Q1280. Self-executing digital contracts where the terms of the agreement are directly written into lines of code on a blockchain are known as:
Explanation
Smart contracts are self-executing agreements with the terms directly written into code on a blockchain. They automatically trigger actions, such as the transfer of funds, when predefined conditions are met. This technology eliminates the need for third-party enforcement, reducing the risk of disputes and increasing efficiency. Smart contracts are essential for decentralized applications and complex digital economies.
Answer key for these questions
Q
Correct answer
1271
(a) I, II, IV, and V
1272
(d) Microsoft Paint
1273
(a) A-i, B-ii, C-iii, D-iv
1274
(a) Forecasting trends and behaviors
1275
(c) Distributed, decentralized, public ledger
1276
(a) Cryptographic Hash Function - Ensuring data immutability and linking blocks
1277
(d) Immutability means any user can easily edit past transactions if they make a mistake.
1278
(a) Both A and R are true and R is the correct explanation of A.
1279
(c) Genesis Block
1280
(d) Smart contracts
Frequently asked questions
How many RAS Prelims practice MCQs are there on RAS Prelims?
This page has 9654 practice MCQs on the RAS Prelims syllabus. Each has the correct answer, and most have an explanation.
How should I practise MCQs for RAS Prelims?
Attempt each question first, then open the answer and read the explanation. Practise one chapter at a time, note the facts you got wrong and revise them. Repeat the chapter after a few days.
Are these actual RAS Prelims past-paper questions?
No. These are practice questions written for the RAS Prelims syllabus. They follow the pattern the exam uses: factual questions, statement-based questions, match-the-list and assertion-reason.
