Computer Knowledge and Digital Banking
Computer Knowledge and Digital Banking
This domain tests basic computer literacy plus the digital channels a banking associate handles daily. Expect hardware/software, memory units, operating systems, MS Office, internet and networking, cybersecurity, and payment systems - NEFT, RTGS, IMPS, UPI, cards, AEPS and mobile/internet banking.
Core facts
- Memory order: bit → byte → KB → MB → GB → TB. 1 byte = 8 bits; 1 KB = 1024 bytes.
- IFSC is an 11-character code: the first four characters are the bank code, the fifth is 0, and the last six identify the branch.
- NEFT is a batch-based electronic funds transfer available 24x7 with no minimum limit; RTGS is real-time and requires a minimum of ₹2 lakh, with no upper limit.
- UPI, IMPS, AEPS and RuPay are run by NPCI. UPI uses a virtual payment address (VPA) such as name@bank.
- Phishing, vishing and smishing are social-engineering attacks delivered by email, voice call and SMS respectively; OTP should never be shared.
Worked example
Question: A customer gives the code HDFC0001234. What does it identify?
Characters 1–4: HDFC - bank code. Character 5: 0 - the reserved zero in every IFSC. Characters 6–11: 001234 - branch code. Therefore it is an IFSC for a specific HDFC Bank branch, used for NEFT/RTGS/IMPS transfers. It is not a MICR code, which is 9 digits and identifies the cheque-processing branch, nor a SWIFT/BIC code, which is 8 or 11 characters and used for international transfers.
Traps
- Saying RTGS has a maximum limit; it does not.
- Confusing IMPS (instant, 24x7, mobile/online) with NEFT (batch, though now 24x7).
- Mixing the fifth character of IFSC (always 0) with the first four (bank code).
- Treating a digital wallet as a bank account; wallets are prepaid instruments and do not pay interest.