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Module IV: E-commerce Applications

20252m

Which protocol is commonly used for secure online transactions?

(i) HTTPS
(ii) FTP
(iii) SMTP
(iv) HTTP

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Correct Answer: (i) HTTPS

Explanation:

  • HTTPS (HyperText Transfer Protocol Secure) is the secure version of HTTP that encrypts communications using TLS (Transport Layer Security) or SSL (Secure Sockets Layer).
  • It ensures data confidentiality, data integrity, and authentication for sensitive operations like online banking, credit card transactions, and e-commerce checkouts.

Security Guarantees:

  1. Encryption: Protects transmitted data against eavesdropping (packet sniffing).
  2. Data Integrity: Prevents tampering or alteration of packets during transit.
  3. Authentication: Proves to users that they are connected to the genuine website via digital certificates.

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