Computer Knowledge Questions for Bank Exams: Solved Questions with Answers

Computer Knowledge Questions for Bank Exams: Quick Answer

This set has 25 original Computer Knowledge questions with full explanations, written for bank exams. Computer Knowledge is not a side topic for RRB aspirants — in the IBPS RRB PO and Clerk Mains, it is a full section of 40 questions for 20 marks in 15 minutes, which works out to barely 22 seconds per question. Either you know the fact or you do not. In SBI PO Mains, computer questions sit inside the combined Reasoning and Computer Aptitude section of 40 questions for 60 marks in 50 minutes, and in Clerk Mains they appear inside the Reasoning sections. The pattern is the same everywhere: direct, fact-based questions on operating systems, networking, MS Office, cybersecurity and banking technology, with one correct answer and four traps built from look-alike terms.

That is why this set is built the way it is. Every question tests one fact, and every explanation teaches the concept behind it — not just which option is right, but why the other four are wrong and how the same fact gets asked in a different disguise. Work the set timed at 15 minutes, the way the RRB Mains section runs, then read every explanation, including the ones you got right. A question you answered correctly by guessing is still a gap, because the same fact will come back wearing a different option order.

Key takeaway: Computer Knowledge in bank exams rewards recognition, not reasoning. The questions are short, the facts repeat year after year, and the traps are almost always the same: RAM confused with ROM, LAN with WAN, NEFT with RTGS, UPI with IMPS, virus with worm, and IFSC with MICR. Learn the pairs in this set and you will recognise them instantly in the exam hall.

What This Set Covers

The answer key at the bottom spreads evenly across all five options — A 5, B 5, C 5, D 5, E 5 — so no option dominates, and no option repeats twice in a row anywhere in the set. If your own mock answers cluster on one letter, that is a signal to re-check, not a pattern to trust.

How to Use This Set

Give yourself 15 minutes and no breaks, the way the RRB Mains Computer Knowledge section runs — once the section ends, you cannot return to it. Do not linger on any single question: at 22 seconds each, a question that needs thinking is a question to mark and move on from. After the timer, rework the marked ones before reading the explanations, and keep a notebook of the exact fact you missed — the full form, the limit, the number of digits — because Computer Knowledge marks are won and lost on single facts.

Ten Facts That Repeat in Every Bank Exam

1. The operating system is the manager, not the worker. An operating system such as Windows or Linux sits between you and the hardware. It decides which program gets the processor, how much memory each program gets, and which files go where on the disk. Application software such as MS Word or a browser cannot touch the hardware directly — everything goes through the OS. The kernel is the core of the OS that does this job.

2. RAM forgets, ROM remembers. RAM (Random Access Memory) is temporary working memory: it holds whatever you are using right now, and everything in it disappears when the computer is switched off. That is why it is called volatile. ROM (Read Only Memory) is permanent memory that holds the instructions the computer needs to start up, and it survives switching off. Hard disks, pen drives and SSDs are secondary storage — they keep data permanently, but they are slower than RAM.

3. Booting is just loading the operating system. When you switch a computer on, it runs a small start-up program and then loads the operating system from the disk into RAM. That process is called booting. It has nothing to do with installing software, connecting to the internet or formatting a disk, and those three are the usual wrong options.

4. Networks are named by size. A LAN (Local Area Network) covers a small area such as one office, building or home. A MAN (Metropolitan Area Network) covers a city. A WAN (Wide Area Network) covers a large area — a country, or the whole world, as the internet does. A PAN (Personal Area Network) is smaller still, covering a few metres around one person, such as a phone connected to wireless earphones. If a question names a place, match it to the size: office means LAN, city means MAN, country means WAN.

5. DNS is the internet's phone book. Computers find each other using IP addresses such as 192.168.1.1 — four numbers from 0 to 255, separated by dots. People cannot remember those, so we use domain names such as google.com instead. DNS (Domain Name System) translates the name you type into the IP address the computer needs. A router connects networks and directs data between them, while a modem connects your home network to your internet provider's line.

6. MS Office has one shortcut and one extension per program. Ctrl+S saves, Ctrl+C copies, Ctrl+V pastes, Ctrl+X cuts and Ctrl+Z undoes — in Word, Excel and PowerPoint alike. The file extensions are just as fixed: Word documents are .docx, Excel workbooks are .xlsx and PowerPoint presentations are .pptx. In Excel, every formula begins with an equals sign (=), and a cell is the box where one row and one column meet. These are pure memory questions, and they appear in almost every computer section, so they are free marks once learned.

7. A virus needs a host; a worm does not. A virus attaches itself to a program or file and spreads only when that file is run or shared. A worm is a standalone program that copies itself from one computer to another over a network, with no host file and no help from the user. A Trojan looks like useful software but hides a harmful purpose inside. Spyware secretly watches what you do, and ransomware locks or encrypts your files and demands payment to release them.

8. A firewall is a gatekeeper, not a cleaner. A firewall sits between your computer or network and the outside world and blocks unauthorised traffic from getting in or out, according to rules. It does not remove viruses from files — that is the antivirus program's job — and it does not speed up your connection or store your passwords. If a question asks what "prevents unauthorised access", the answer is the firewall.

9. India's payment systems split by speed, size and operator. UPI (Unified Payments Interface) is NPCI's instant system for person-to-person and merchant payments, with a standard ceiling of ₹1 lakh per transaction and per day and a limit of 20 transactions a day; higher limits apply only to select categories such as IPOs and tax payments. IMPS (Immediate Payment Service) is also NPCI's and also instant and 24×7, but its per-transaction ceiling is ₹5 lakh, raised from ₹2 lakh in October 2021. NEFT (National Electronic Funds Transfer) is RBI's system that settles in half-hourly batches, has no minimum amount, and has run 24×7 since December 2019. RTGS (Real Time Gross Settlement) is RBI's system that settles each payment individually and immediately, runs 24×7 since December 2020, and cannot be used below ₹2 lakh.

10. Banking codes are fixed lengths — learn the numbers, not just the names. An IFSC (Indian Financial System Code) has 11 characters: four letters for the bank, a zero, then six characters for the branch. It routes electronic transfers such as NEFT, RTGS and IMPS. A MICR (Magnetic Ink Character Recognition) code has 9 digits — three for the city, three for the bank and three for the branch — and it is used for cheque clearing. CBS stands for Core Banking Solution, the system that lets you use your account from any branch of your bank. A White Label ATM is owned and operated by a non-bank entity authorised by the RBI and serves customers of all banks. UPI was launched by NPCI in 2016, its app BHIM (Bharat Interface for Money) followed in December 2016, and NPCI was set up in December 2008.

Operating Systems: Questions 1–5

Q1. Which of the following is an operating system?

A. MS Excel B. Linux C. Google Chrome D. MS PowerPoint E. Adobe Photoshop

Answer: B — Linux.

Explanation: An operating system manages the computer's hardware and provides services to programs. Linux is an operating system, and it is open-source software, which means its source code is freely available for anyone to use and modify. MS Excel and MS PowerPoint are application programs, Google Chrome is a web browser, and Adobe Photoshop is an image editor — all four run on top of an operating system, and none of them manages hardware.

Q2. What is the main function of the kernel of an operating system?

A. To create documents and spreadsheets B. To browse the internet C. To play audio and video files D. To act as the bridge between software and hardware E. To store files permanently on the hard disk

Answer: D — To act as the bridge between software and hardware.

Explanation: The kernel is the core part of the operating system. It is the layer that talks directly to the processor, memory and other hardware, and every program must go through it to use them. Options A, B and C describe application programs, and E describes secondary storage — none of them is the kernel's job.

Q3. Which of the following is volatile memory?

A. RAM B. ROM C. Hard disk D. CD-ROM E. Pen drive

Answer: A — RAM.

Explanation: Volatile memory loses everything stored in it when the power is switched off, and RAM (Random Access Memory) is exactly that: temporary working memory for whatever you are using right now. ROM is non-volatile — it keeps its contents without power. A hard disk, a CD-ROM and a pen drive are all secondary storage, which keeps data permanently and is not volatile memory at all.

Q4. What does booting a computer mean?

A. Shutting down the computer B. Installing new software C. Connecting the computer to the internet D. Formatting the hard disk E. Loading the operating system into memory when the computer is switched on

Answer: E — Loading the operating system into memory when the computer is switched on.

Explanation: Booting is the start-up process: the computer runs a small built-in program, then loads the operating system from the disk into RAM so that it can take over. Shutting down is the opposite process, installing software adds a program, connecting to the internet needs a network, and formatting wipes a disk — none of those is booting.

Q5. Which of the following is system software?

A. MS Word B. Tally C. Windows 11 D. VLC Media Player E. Google Chrome

Answer: C — Windows 11.

Explanation: System software is software that runs and manages the computer itself, and the operating system is the main example — Windows 11 is an operating system. MS Word, Tally, VLC Media Player and Google Chrome are all application software: programs built to do one kind of user task, such as writing, accounting, playing video or browsing, and all of them need an operating system underneath them.

Computer Networking: Questions 6–10

Q6. Which type of network covers a small area such as a single office or building?

A. LAN B. WAN C. MAN D. Internet E. Intranet

Answer: A — LAN.

Explanation: LAN stands for Local Area Network, and it connects computers within a small area — one office, one building or one home. A MAN (Metropolitan Area Network) covers a city, a WAN (Wide Area Network) covers a large region or country, and the internet is the largest WAN of all. An intranet is not a size of network at all; it is a private network inside an organisation, so it is the trap option here.

Q7. What is the main function of DNS on the internet?

A. To encrypt passwords before they are sent B. To store files on a web server C. To translate domain names into IP addresses D. To print documents from a browser E. To scan downloads for viruses

Answer: C — To translate domain names into IP addresses.

Explanation: DNS stands for Domain Name System. When you type a name such as google.com, DNS looks up the IP address of the server that name belongs to, because computers communicate using IP addresses, not names. Encryption is done by other systems, file storage is the server's job, printing is a local function, and virus scanning is the antivirus program's job.

Q8. Which device connects different networks and directs data between them?

A. Monitor B. Keyboard C. Printer D. Scanner E. Router

Answer: E — Router.

Explanation: A router sits between networks and decides which path each packet of data should take to reach its destination — it is the traffic controller of networking. A monitor, keyboard, printer and scanner are all peripheral devices attached to one computer, and none of them connects or directs traffic between networks. Do not confuse a router with a modem: the modem connects your home to your internet provider, while the router directs traffic between networks.

Q9. What is the full form of HTTP?

A. HyperText Transfer Process B. HyperText Transfer Protocol C. HighText Transmission Protocol D. HyperText Transmission Program E. Host Transfer Text Protocol

Answer: B — HyperText Transfer Protocol.

Explanation: HTTP is the set of rules — the protocol — that web browsers and web servers use to transfer web pages to each other. "Process", "Transmission Program" and "Host Transfer" are invented distractors, and "HighText" is simply not a word used here. Its secure version, HTTPS, adds encryption to the same protocol, which is why browsers show a padlock for HTTPS sites.

Q10. Which of the following is a valid IPv4 address?

A. 300.168.1.1 B. 192.168.1.256 C. 192.168.1 D. 192.168.1.1 E. 192.168.1.1.1

Answer: D — 192.168.1.1.

Explanation: An IPv4 address has exactly four numbers separated by dots, and each number must be between 0 and 255. Option A fails because 300 is above 255, option B fails because 256 is above 255, option C has only three parts, and option E has five parts. Only D has four parts, all within range. This is a favourite exam format: the correct answer looks ordinary, and every wrong option breaks exactly one rule.

MS Office: Questions 11–14

Q11. Which shortcut key is used to save a file in MS Word or MS Excel?

A. Ctrl + P B. Ctrl + C C. Ctrl + S D. Ctrl + X E. Ctrl + Z

Answer: C — Ctrl + S.

Explanation: Ctrl + S is the save shortcut in almost every Windows program, including Word, Excel and PowerPoint. The other options are the classic confusions: Ctrl + P prints, Ctrl + C copies, Ctrl + X cuts, and Ctrl + Z undoes the last action. Learn them as a set, because exams rotate the same five shortcuts across questions.

Q12. What is the default file extension of an MS Excel workbook?

A. .xlsx B. .docx C. .pptx D. .pdf E. .txt

Answer: A — .xlsx.

Explanation: Modern Excel workbooks are saved with the .xlsx extension — the "x" marks the XML-based format used since Office 2007. Word documents use .docx and PowerPoint presentations use .pptx, which is why those two are the traps. PDF and .txt are not Excel's own formats at all, though Excel can export to them.

Q13. In MS Excel, a formula must begin with which symbol?

A. # B. $ C. @ D. * E. =

**Answer: E — =. **

Explanation: Every Excel formula starts with an equals sign, which tells Excel that what follows is a calculation rather than plain text — for example, =SUM(A1:A5) adds the numbers in cells A1 to A5. The other symbols have their own uses (for example, $ fixes a cell reference), but none of them starts a formula. If a cell shows the formula as text instead of a result, a missing equals sign is the first thing to check.

Q14. In MS Excel, what does the intersection of a row and a column form?

A. Workbook B. Cell C. Sheet D. Range E. Table

Answer: B — Cell.

Explanation: A cell is the single box where one row and one column cross, and it is identified by its column letter and row number, such as B3. A workbook is the whole file, a sheet is one page inside the workbook, a range is a group of cells, and a table is a formatted block of cells. Exams love this question because all five options are real Excel terms — only one of them is the intersection.

Cybersecurity: Questions 15–18

Q15. What is phishing?

A. A type of computer virus that deletes files B. A method of speeding up an internet connection C. A setting that blocks pop-up advertisements D. Fake emails or messages that trick users into revealing passwords or OTPs E. A method of backing up files to the cloud

Answer: D — Fake emails or messages that trick users into revealing passwords or OTPs.

Explanation: Phishing is a fraud, not a program: the attacker sends a message that looks as if it comes from your bank or a known company, and asks you to click a link and enter your password, card details or OTP. No bank ever asks for your OTP or full password by email or message, so any message that does is phishing. A virus is software, speeding up a connection is a network matter, blocking pop-ups is a browser setting, and backing up is storage — none of them is phishing.

Q16. Which malware spreads by itself from one computer to another over a network, without attaching to a host file?

A. Virus B. Worm C. Trojan D. Spyware E. Adware

Answer: B — Worm.

Explanation: A worm is a standalone program that copies itself across a network from one computer to another, with no host file and no action needed from the user. A virus, by contrast, must attach itself to a host program or file and spreads only when that file is run or shared — that difference is the whole point of the question. A Trojan hides inside software that looks useful, spyware secretly watches the user, and adware shows unwanted advertisements.

Q17. What is the main job of a firewall?

A. To block unauthorised access to or from a network B. To remove viruses from infected files C. To speed up internet downloads D. To store passwords safely E. To create backups of important data

Answer: A — To block unauthorised access to or from a network.

Explanation: A firewall is a gatekeeper: it checks incoming and outgoing traffic against a set of rules and blocks anything that is not allowed. Removing viruses is the antivirus program's job, speeding up downloads is a network matter, storing passwords is a password manager's job, and creating backups is storage. If a question asks what "prevents unauthorised access", the answer is the firewall.

Q18. Which of the following is the strongest password practice?

A. Using your date of birth as your password B. Using "password123" for every account C. Using a long password with upper and lower case letters, numbers and symbols, different for each account D. Using the same password for all your accounts E. Writing your password on a sticky note on your monitor

Answer: C — Using a long password with upper and lower case letters, numbers and symbols, different for each account.

Explanation: A strong password is long, mixes character types so it cannot be guessed or cracked quickly, and is unique to one account so that one leak does not open every account. A date of birth is public information, "password123" is one of the first guesses any attacker tries, reusing one password everywhere multiplies the damage of a single leak, and writing it on a monitor defeats the purpose entirely.

Banking Technology: Questions 19–25

Q19. What is the standard per-transaction limit for UPI payments?

A. ₹10,000 B. ₹25,000 C. ₹50,000 D. ₹2 lakh E. ₹1 lakh

Answer: E — ₹1 lakh.

Explanation: NPCI sets the standard UPI ceiling at ₹1 lakh per transaction and ₹1 lakh per day for ordinary person-to-person and merchant payments, with a limit of 20 transactions a day. Higher limits of up to ₹5 lakh apply only to select categories such as IPO applications and tax payments, and individual banks may set lower limits than the NPCI ceiling. The ₹2 lakh figure belongs to a different system — it is the capital-markets category limit for UPI and the minimum for RTGS — which is why it is the trap here.

Q20. What is the maximum amount that can be sent in a single IMPS transaction?

A. ₹50,000 B. ₹1 lakh C. ₹2 lakh D. ₹5 lakh E. ₹10 lakh

Answer: D — ₹5 lakh.

Explanation: IMPS (Immediate Payment Service) is NPCI's instant, 24×7 bank transfer service, and its per-transaction ceiling is ₹5 lakh for most channels — it was raised from ₹2 lakh in October 2021, so ₹2 lakh is the outdated figure and the usual trap. IMPS fills the gap between UPI, which is capped at ₹1 lakh for ordinary payments, and RTGS, which cannot be used below ₹2 lakh.

Q21. How does NEFT settle fund transfers?

A. In half-hourly batches B. Individually and in real time C. Once a day, at midnight D. Once a week, on Mondays E. Only on bank working days, in one batch

Answer: A — In half-hourly batches.

Explanation: NEFT (National Electronic Funds Transfer) is RBI's system in which transfers are collected and settled together in batches every half hour — 48 batches a day. It has no minimum amount, and it has run 24×7, including weekends and holidays, since December 2019. Option B describes RTGS, which settles each payment individually and immediately; options C, D and E describe schedules NEFT has not used since it went round the clock.

Q22. What is the minimum amount for an RTGS transaction?

A. ₹10,000 B. ₹50,000 C. ₹2 lakh D. ₹5 lakh E. ₹1 lakh

Answer: C — ₹2 lakh.

Explanation: RTGS (Real Time Gross Settlement) is RBI's system for high-value transfers, and it cannot be used below ₹2 lakh — there is no RBI upper limit. Each payment is settled individually and immediately, which is what "gross settlement" means, and the system has run 24×7 since December 2020. Amounts below ₹2 lakh go by NEFT or IMPS instead, which is the practical rule to remember.

Q23. Which of the following correctly describes an IFSC?

A. A 9-digit numeric code used for cheque clearing B. An 11-character code: four letters for the bank, a zero, then six characters for the branch C. An 8-character code used only for international transfers D. A 16-digit number printed on a debit card E. A 6-digit code for an ATM location

Answer: B — An 11-character code: four letters for the bank, a zero, then six characters for the branch.

Explanation: IFSC stands for Indian Financial System Code, and it identifies one specific bank branch for electronic transfers such as NEFT, RTGS and IMPS. For example, in SBIN0000456, SBIN is the bank, 0 is the fifth character, and 000456 is the branch. Option A describes the MICR code, option C describes a SWIFT code, and D and E are other numbers that appear in banking but are not the IFSC.

Q24. How many digits does a MICR code have, and what are its three parts?

A. 11 characters: bank, zero and branch B. 6 digits: bank and branch only C. 16 digits: card number and branch D. 4 letters: bank code only E. 9 digits: three for the city, three for the bank and three for the branch

Answer: E — 9 digits: three for the city, three for the bank and three for the branch.

Explanation: MICR stands for Magnetic Ink Character Recognition. The 9-digit code is printed in magnetic ink along the bottom of a cheque leaf and is used to clear cheques quickly and accurately. The first three digits are the city code, the next three are the bank code and the last three are the branch code. Option A is the IFSC, and the rest are invented formats — the exam's trap is always to swap IFSC and MICR, so learn them as a pair: IFSC is 11 characters for electronic transfers, MICR is 9 digits for cheques.

Q25. What is a White Label ATM?

A. An ATM owned and operated by the Reserve Bank of India B. An ATM owned by a single bank for its own customers only C. An ATM that accepts only cash deposits, not withdrawals D. An ATM owned and operated by a non-bank entity authorised by the RBI E. An ATM installed only inside bank branches

Answer: D — An ATM owned and operated by a non-bank entity authorised by the RBI.

Explanation: White Label ATMs are set up, owned and operated by non-bank companies authorised by the RBI under the Payment and Settlement Systems Act, 2007, and they carry no bank's branding — customers of any bank can use them. The first operator was Tata Communications Payment Solutions, under the brand Indicash. Do not confuse them with Brown Label ATMs, where a service provider deploys and runs the machine under a bank's brand, with the sponsor bank providing the cash and the network connection.

Answer Key

Key spread across the 25 questions: A 5, B 5, C 5, D 5, E 5 — exactly even, no option above 30%, and no option repeats twice in a row anywhere in the set.

Common Mistakes in Computer Knowledge

• Mixing up RAM and ROM. Both are memory, both are three letters, and both appear in the same question. Remember it as: RAM is Random and forgets when the power goes off; ROM is Read Only and remembers.
• Mixing up LAN, MAN and WAN. The question usually names a place — an office, a city, a country. Match the place to the size instead of guessing from the letters. Office means LAN, city means MAN, country or world means WAN.
• Mixing up NEFT and RTGS. Both are RBI systems and both run 24×7 now, so "24×7" no longer separates them. What separates them is how they settle and the minimum: NEFT settles in half-hourly batches with no minimum, RTGS settles each payment in real time with a ₹2 lakh minimum.
• Mixing up IFSC and MICR. IFSC is 11 characters for electronic transfers, MICR is 9 digits for cheques. If the question mentions a cheque leaf, think MICR; if it mentions NEFT, RTGS or IMPS, think IFSC.

Memory Tricks for Computer Knowledge

• RAM forgets, ROM remembers: "RAM = Random, gone when power's off." Say it once and the pair stops being confusing.
• Network sizes in order: PAN (a person), LAN (a room or building), MAN (a city), WAN (a country or the world). One sentence covers every size question.
• The payment ladder: UPI ₹1 lakh for everyday payments, IMPS ₹5 lakh for urgent bank transfers, NEFT for routine transfers of any size, RTGS ₹2 lakh minimum for large urgent transfers.
• Office shortcuts as a set: Save = S, Copy = C, Paste = V, Cut = X, Undo = Z. Five letters, five shortcuts, one set.
• Virus needs a host, worm walks alone: "Worm" and "walks" both start with W. If it moves by itself, it is a worm.
• Firewall = wall: a wall keeps people out. It does not clean anything — cleaning is the antivirus program's job.

Computer Knowledge FAQs for Bank Exams

How many Computer Knowledge questions are there in IBPS RRB Mains?

40 questions for 20 marks in 15 minutes, in both the RRB PO (Officer Scale I) and RRB Clerk (Office Assistant) Mains. That is 0.5 marks per question and about 22 seconds per question, so the section rewards instant recognition of facts.

Where do computer questions appear in SBI PO and Clerk Mains?

In SBI PO Mains, computer questions sit inside the combined Reasoning and Computer Aptitude section of 40 questions for 60 marks in 50 minutes. In SBI Clerk Mains, they appear inside the Reasoning Ability and Computer Aptitude section of 50 questions for 60 marks in 45 minutes. Clerk Prelims has no separate computer section.

Is there negative marking in the Computer Knowledge section?

Yes — one-fourth of the marks assigned to a question is deducted for each wrong answer in IBPS RRB and SBI exams. In RRB Mains, a wrong Computer Knowledge answer costs 0.125 marks. With five options, a blind guess is exactly break-even on average ((1/5 × 0.5) − (4/5 × 0.125) = 0.10 − 0.10 = 0), so the penalty alone does not make guessing a losing bet — but a guess still costs time at about 22 seconds a question, so guess only after eliminating options.

Which topics carry the most weight in Computer Knowledge?

Banking technology (UPI, IMPS, NEFT, RTGS, IFSC, MICR, ATM, CBS) and computer fundamentals (operating systems, memory, networking, MS Office) together make up most of the section, with cybersecurity and abbreviations filling the rest.

What is the difference between UPI and IMPS?

Both are instant, 24×7 systems run by NPCI, but UPI moves money using a UPI ID, mobile number or QR code with a standard ceiling of ₹1 lakh per transaction, while IMPS moves money using an account number and IFSC with a per-transaction ceiling of ₹5 lakh.

What is CBS in banking?

CBS stands for Core Banking Solution. It is the centralised system that links all branches of a bank, so a customer can use their account — deposits, withdrawals, transfers — from any branch, ATM or online channel of that bank, not just the branch where the account was opened.

Are the questions in this set from previous bank exam papers?

No. Every question in this set is original and written for this page. For real previous-year papers, see the IBPS RRB PO previous year question paper and IBPS RRB Clerk previous year question paper notes.

Practice Next for Computer Knowledge

• Pattern and syllabus: IBPS RRB PO syllabus and exam pattern, IBPS RRB Clerk syllabus and exam pattern, SBI Clerk Reasoning questions.
• More solved sets: IBPS RRB Clerk Quant questions, Computer abbreviations for bank exams, Banking terms A to Z.
• Banking and computer background: Banking awareness for bank exams, SSC CGL Computer Knowledge test syllabus 2026, Important banking acts in India.
• Mock tests: IBPS RRB PO Mains Computer Knowledge Sectional Mock Test 01, IBPS RRB Clerk Mains Computer Knowledge Sectional Mock Test 01, IBPS RRB PO Mains Full Mock Test 01, IBPS RRB Clerk Mains Full Mock Test 01.
• Hubs: IBPS RRB PO 2026 and IBPS RRB Clerk 2026.
• Browse all study notes.

Sources: RBI payment-system facts (NEFT 24×7 since December 2019, half-hourly batches, no minimum; RTGS 24×7 since December 2020, ₹2 lakh minimum) and NPCI product facts (UPI standard ceiling ₹1 lakh per transaction/day, 20 transactions a day, launched 2016; IMPS ₹5 lakh per transaction, raised from ₹2 lakh in October 2021, 24×7; NPCI set up December 2008; BHIM launched December 2016) verified by web search on 6 November 2026 against RBI/NPCI reporting and bank pages (HDFC Bank IMPS page, Paytm NEFT/RTGS/IMPS guide); IFSC 11-character format and MICR 9-digit format (3+3+3) verified against RBI-issued code guides; White Label ATM rules (non-bank operator authorised by RBI under the Payment and Settlement Systems Act, 2007; first operator Tata Communications Payment Solutions, Indicash) verified against RBI-authorised operator reporting. Exam patterns as stated in the desk brief and the house SBI Clerk Reasoning note (RRB Mains Computer Knowledge 40 questions, 20 marks, 15 minutes; SBI PO Mains Reasoning and Computer Aptitude 40 questions, 60 marks, 50 minutes; SBI Clerk Mains Reasoning and Computer Aptitude 50 questions, 60 marks, 45 minutes; 1/4 negative marking). All 25 questions are original and written for this page. As of 6 November 2026.