Electronic commerce and E-Business MCQs

it uses two keys.
there is no key distribution problem as public key can be kept in a commonly accessible database.
private key can be kept secret.
it is a symmetric key system.

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includes services such as legal advice
means only shopping for physical goods
means only customers should approach customers to sell
means only customers should approach business to buy

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for representing business forms used in e-Commerce
for e-mail transaction for e-Commerce
for ftp in e-Commerce
protocol used in e-Commerce

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i, iv
i, iii, iv
ii, iii
i, ii, iii, iv

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encrypting plain text by a different randomly selected key for each transmission
encrypting plain text by a different random key for each message transmission and sending the key to the receiver using a public key system
using an algorithm to implement DES instead of using hardware
designing DES with high security and not publicizing algorithm used by it

Answer