Practice

Computers, Information and Communication Technology: RAS Prelims MCQs

200 RAS Prelims MCQs on computers, information and communication technology cover the generations of computers, the parts of the CPU, memory types and networking. The first and second generations, analog computers, the control unit, cache and RAM, the memory hierarchy and the SSD are asked as definitions and sequences, with the explanations giving the reason for each design.

Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.

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Showing 151–160 of 200 questions

RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q151. What does the acronym UPI stand for in India’s digital payment ecosystem?
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q152. Consider the following statements regarding NEFT and RTGS in India:
I. NEFT operates in half-hourly batches.
II. RTGS processes transactions continuously in real-time.
III. Both systems are available 24x7x365.
IV. RTGS has a minimum transfer limit of 2 lakh.
V. NEFT has a minimum transfer limit of 2 lakh.
Which of the above statement(s) is/are correct?
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q153. Identify the incorrect statement comparing IMPS and NEFT.
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q154. The Government of India introduced a cashless and contactless instrument for digital payment that operates as a prepaid e-voucher delivered via SMS or QR code. What is this called?
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q155. Which umbrella organization operates retail payments and settlement systems in India, including UPI and RuPay?
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q156. Given below are the steps in a typical UPI transaction:
I. Enter UPI PIN
II. Open UPI App and scan QR / enter VPA
III. Bank debits sender and credits receiver
IV. Enter payment amount
Select the correct chronological arrangement.
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q157. Identify the odd one out among these digital payment platforms/methods.
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q158. Which statement correctly defines a Virtual Payment Address (VPA) in the context of UPI?
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q159. Which of the following digital payment systems is NOT operated by the National Payments Corporation of India (NPCI)?
RAS Prelims Science and Technology · Computers, Information and Communication Technology
Q160. What is the effect of the Government of India waiving the Merchant Discount Rate (MDR) on UPI and RuPay debit card transactions?

Answer key for these questions

QCorrect answer
151(d) Unified Payments Interface
152(a) I, II, III, and IV only
153(c) IMPS is managed by the RBI, whereas NEFT is managed exclusively by private banks.
154(a) e-RUPI
155(d) National Payments Corporation of India (NPCI)
156(a) II, IV, I, III
157(c) SWIFT Network
158(d) Unique account identifier
159(a) NEFT (National Electronic Funds Transfer)
160(b) Zero merchant fees incentive

Key facts from Computers, Information and Communication Technology

  • First-generation computers used vacuum tubes; the second generation moved to transistors.
  • Analog computers work on continuous variable data rather than discrete binary data.
  • The Control Unit directs and coordinates the operations of the CPU.
  • Cache memory gives the fastest access to the CPU; the hierarchy from fastest to slowest is registers, cache, RAM and magnetic disk.
  • Adding more RAM to a system with many page faults reduces its dependence on virtual memory.
  • An SSD differs from an HDD by the use of NAND flash memory.

Frequently asked questions

How many RAS Prelims practice MCQs are there on Computers, Information and Communication Technology?

This page has 200 practice MCQs on Computers, Information and Communication Technology (Science and Technology). Each has the correct answer, and most have an explanation.

What was used in first-generation computers?

Vacuum tubes. They were large, used much power and produced heat. The second generation replaced them with transistors, which were smaller, faster and more reliable, and later generations moved to integrated circuits and microprocessors.

Which memory is fastest for the CPU?

Cache memory, apart from the registers inside the CPU. The memory hierarchy from fastest to slowest is registers, cache, RAM and magnetic disk, and capacity increases as speed falls.

How does an SSD differ from an HDD?

An SSD stores data in NAND flash memory with no moving parts, while a hard disk drive uses spinning magnetic platters. As a result an SSD is faster, quieter and more resistant to shock.