SF Prep
12 Computer Awareness — Common Notes 🕒 Updated 2026-10-17
Common Notes SSC CGL · CHSL · Police · Bank · Railway Chapter 12

🏦 e-Banking & Digital Payments

Internet and mobile banking, NEFT, RTGS and IMPS, UPI and NPCI products, cards and ATMs, IFSC and MICR codes, and staying safe from online banking fraud.

📌 1. e-Banking: Meaning and Channels

e-Banking = banking services through electronic channels (internet, mobile, ATM, cards) — checking balance, sending money, paying bills, opening FDs — without visiting a branch, 24×7.

  • Internet / net banking: on the bank’s website with user ID + password + OTP.
  • Mobile banking: the bank’s app; without internet, the *99# (USSD) service.
  • ATM (Automated Teller Machine), POS (Point of Sale) machines, phone banking, kiosks.
  • Core Banking Solution (CBS): all branches are linked to a central server, so a customer can transact at any branch (CORE = Centralised Online Real-time Exchange).

📌 2. NEFT, RTGS, IMPS and Bank Codes

NEFTRTGSIMPS
Full formNational Electronic Funds TransferReal Time Gross SettlementImmediate Payment Service
SettlementHalf-hourly batches (deferred net)Each transaction instantly, one by one (gross)Instant
AmountNo minimum or maximum limitMinimum ₹2 lakh, no maximumUp to ₹5 lakh
Operated byRBIRBINPCI
24×7 since16 December 201914 December 2020From the start (2010)
  • IFSC (Indian Financial System Code): 11 characters — first 4 = bank code, 5th always 0, last 6 = branch code. Used in NEFT/RTGS/IMPS.
  • MICR (Magnetic Ink Character Recognition) code: 9 digits printed on cheques — 3 city, 3 bank, 3 branch.
  • SWIFT code (8 or 11 characters): identifies a bank for international (cross-border) transfers.
  • NACH (NPCI): bulk and repetitive payments such as salaries, pensions, subsidies and EMIs.
⚠️ Exam Traps:
  • RTGS has a minimum (₹2 lakh); NEFT does not.
  • IFSC = 11 characters, MICR = 9 digits — do not swap them.

📌 3. UPI and NPCI Products

  • NPCI (National Payments Corporation of India, 2008): an initiative of RBI and the Indian Banks’ Association under the Payment and Settlement Systems Act 2007.
  • UPI (Unified Payments Interface): launched by NPCI on 11 April 2016; send money with a VPA/UPI ID (e.g. name@bank), a 4- or 6-digit UPI PIN, pay by QR code.
  • BHIM app (30 December 2016); UPI 123PAY — UPI from feature phones (no smartphone/internet); UPI Lite — small payments without a PIN.
  • *99# (NUUP): mobile banking over USSD. AePS: transactions at micro-ATMs with Aadhaar number + biometrics. BBPS (Bharat BillPay): electricity, water, gas and other bills.
  • RuPay: NPCI’s domestic card network; FASTag (NETC): electronic toll payment.
💡 Memory Tip: “NPCI = UPI, IMPS, RuPay, AePS, BBPS, NACH, FASTag; RBI = NEFT, RTGS.”

📌 4. Cards, ATMs and Security Features

  • Debit card — money from your own account; credit card — a credit limit from the bank (borrowing); prepaid card/wallet — money loaded in advance.
  • CVV (Card Verification Value): 3 digits on the back of the card, used for online payments. EMV chip cards are safer than magnetic-stripe cards.
  • Tokenisation (RBI, from 1 October 2022): merchants store a “token”, not the real card number.
  • Contactless (NFC) “tap to pay”: up to ₹5,000 without a PIN. Two-factor authentication (2FA/AFA): password + OTP.

📌 5. Online Banking Fraud and Safety

FraudHow it works
PhishingFake e-mails/websites that steal passwords and card details
VishingA phone call from a fake “bank official” asking for OTP/PIN
SmishingFake links sent by SMS
SkimmingCopying card data with a hidden device on an ATM
SIM swapGetting a duplicate SIM of your number to receive OTPs
  • Never share OTP, PIN, CVV or passwords — banks never ask for them. Log in only on https:// sites with a padlock; log out after use.
  • On fraud, inform the bank at once and the National Cyber Crime Helpline 1930 / cybercrime.gov.in. RBI rule: for a third-party breach reported within 3 working days, the customer’s liability is zero.
⚠️ Exam Traps:
  • You never enter a UPI PIN “to receive money” — the PIN is only for sending/paying.

📌 6. Practice MCQs

📝 Practice MCQs (prepared by SF Prep — not PYQs)
Q1. What is the minimum amount that can be sent through RTGS? Practice
(A) ₹1 lakh
(B) ₹50,000
(C) ₹2 lakh
(D) No minimum limit
Correct answer: (C)
RTGS is for large transfers: minimum ₹2 lakh, no maximum.
Q2. How are NEFT transactions settled? Practice
(A) In half-hourly batches
(B) Each transaction instantly, one by one
(C) Only once a day
(D) At the end of the week
Correct answer: (A)
NEFT is deferred net settlement in half-hourly batches; RTGS is gross and real-time.
Q3. From when has NEFT been available 24×7? Practice
(A) 14 December 2020
(B) 1 July 2015
(C) 11 April 2016
(D) 16 December 2019
Correct answer: (D)
NEFT became 24×7 on 16 December 2019 and RTGS on 14 December 2020.
Q4. Who operates the IMPS service? Practice
(A) RBI
(B) NPCI
(C) SBI
(D) SEBI
Correct answer: (B)
IMPS (2010) is NPCI’s instant, 24×7 payment service.
Q5. How many characters does an IFSC code have? Practice
(A) 9
(B) 10
(C) 12
(D) 11
Correct answer: (D)
IFSC = 11 characters: 4 bank + 0 + 6 branch.
Q6. What is the fifth character of an IFSC code always? Practice
(A) The first letter of the bank
(B) 0 (zero)
(C) The state code
(D) X
Correct answer: (B)
The fifth character is reserved for future use and is always 0.
Q7. How many digits does the MICR code printed on a cheque have? Practice
(A) 11
(B) 6
(C) 9
(D) 16
Correct answer: (C)
MICR = 9 digits (3 city, 3 bank, 3 branch).
Q8. In which year was UPI launched? Practice
(A) 2016
(B) 2010
(C) 2014
(D) 2019
Correct answer: (A)
NPCI launched UPI on 11 April 2016.
Q9. What is the full form of VPA in UPI? Practice
(A) Verified Payment Account
(B) Virtual Payment Address
(C) Virtual Private Account
(D) Valid Payee Address
Correct answer: (B)
A VPA (UPI ID) such as name@bank lets you send money without sharing the account number/IFSC.
Q10. UPI 123PAY is meant for: Practice
(A) Only foreign tourists
(B) Only large merchants
(C) Only credit-card holders
(D) Feature-phone users
Correct answer: (D)
UPI 123PAY allows UPI payments from feature phones without a smartphone or internet.
Q11. What is the *99# service? Practice
(A) USSD-based mobile banking
(B) A number to change the ATM PIN
(C) An emergency police helpline
(D) Credit-card bill payment
Correct answer: (A)
*99# (NUUP) gives banking on any phone without internet.
Q12. What is needed for a transaction under AePS (Aadhaar enabled Payment System)? Practice
(A) Debit card and PIN
(B) UPI ID and QR code
(C) Aadhaar number and biometric (fingerprint) authentication
(D) A cheque book
Correct answer: (C)
Under AePS money is withdrawn/deposited at a micro-ATM with Aadhaar + fingerprint.
Q13. Bharat BillPay (BBPS) is used for: Practice
(A) Buying shares
(B) Paying electricity, water, gas and similar bills
(C) Sending money abroad
(D) Clearing cheques
Correct answer: (B)
BBPS (NPCI) is the integrated bill-payment system.
Q14. What is the full form of CVV? Practice
(A) Customer Verification Value
(B) Card Validity Verification
(C) Card Verification Value
(D) Credit Value Verification
Correct answer: (C)
The CVV is the 3 digits on the back of a card used for online payments — never share it.
Q15. What does card tokenisation mean? Practice
(A) Changing the card PIN every month
(B) Making the card with a gold layer
(C) Printing a photo on the card
(D) Replacing the real card details with a unique token (alternate code)
Correct answer: (D)
Under the RBI rule (1 October 2022) merchants cannot store real card numbers, only tokens.
Q16. Stealing passwords through fake e-mails or websites that look like a bank’s is called: Practice
(A) Phishing
(B) Skimming
(C) Hackathon
(D) Firewall
Correct answer: (A)
Phishing = fake e-mails/sites; skimming = copying card data at an ATM.
Q17. A fraud in which a caller poses as a “bank official” and asks for your OTP is called: Practice
(A) Smishing
(B) Spooling
(C) Vishing
(D) Piggybacking
Correct answer: (C)
Vishing = voice phishing (phone call); smishing = by SMS.
Q18. Copying card data with a hidden device fitted on an ATM is called: Practice
(A) Skimming
(B) Phishing
(C) Spamming
(D) Backup
Correct answer: (A)
A skimmer steals the magnetic-stripe data to make cloned cards.
Q19. What is the National Cyber Crime Helpline number? Practice
(A) 100
(B) 112
(C) 1098
(D) 1930
Correct answer: (D)
Call 1930 at once for online fraud or complain on cybercrime.gov.in; 1098 is the child helpline.
Q20. What indicates a secure website for net banking? Practice
(A) The site has many advertisements
(B) The address starts with https:// and shows a padlock
(C) The address starts with http://
(D) The link came by SMS
Correct answer: (B)
The “s” in https = secure (encryption); still check the address carefully.

📝 Practice questions

Computer Awareness — Practice MCQs (Bilingual) Ch 12: e-Banking & Digital Payments | ई-बैंकिंग

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