a customer buys several electronic coins which are digitally signed by coinissuing bank
a credit card payment system is used
RSA cryptography is used in the transactions
Correct answer: (B) a customer buys several electronic coins which are digitally signed by coinissuing bank
552. For carrying out B2C e-Commerce the following infrastructure is essential:
World Wide Web
Corporate network
Electronic Data Interchange standards
Secure Payment Services
Secure electronic communication link connecting businesses
i, iv
i, iii, iv
ii, iii
i, ii, iii, iv
Correct answer: (A) i, iv
553. Electronic Data Interchange is necessary in
B2C e-Commerce
C2C e-Commerce
B2B e-Commerce
Commerce using internet
Correct answer: (C) B2B e-Commerce
554. EDIFACT standard was developed by
American National Standard Institute
International Standard Institute
European Common Market
United Nations Economic Commission for Europe
Correct answer: (D) United Nations Economic Commission for Europe
555. A firewall may be implemented in
routers which connect intranet to internet
bridges used in an intranet
expensive modem
user's application programs
Correct answer: (A) routers which connect intranet to internet
556. A hardened firewall host on an Intranet is
a software which runs in any of the computers in the intranet
a software which runs on a special reserved computer on the intranet
a stripped down computer connected to the intranet
a mainframe connected to the intranet to ensure security
Correct answer: (B) a software which runs on a special reserved computer on the intranet
557. DES
is a symmetric key encryption method
guarantees absolute security
is implementable as hardware VLSI chip
is a public key encryption method
i and ii
ii and iii
i and iii
iii and iv
Correct answer: (C) i and iii
558. Public key encryption method is a system
which uses a set of public keys one for each participant in e-Commerce
in which each person who wants to communicate has two keys; a private key known to him only and a public key which is publicized to enable others to send message to him
which uses the RSA coding system
which is a standard for use in e-Commerce
Correct answer: (B) in which each person who wants to communicate has two keys; a private key known to him only and a public key which is publicized to enable others to send message to him
559. A digital signature is
a bit string giving identity of a correspondent
a unique identification of a sender
an authentication of an electronic record by tying it uniquely to a key only a sender knows
an encrypted signature of a sender
Correct answer: (C) an authentication of an electronic record by tying it uniquely to a key only a sender knows
560. The Secure Electronic Transaction protocol is used for