1. Public Key of the receiver is used to-------------------.a. Decrypt the messageb. Encrypt the messagec. Scramble the messaged. None of the mentioned options

2. Receiver applies ----------------to the received original messagea. Digital signatureb. Message digestc. Hash functiond. None of the mentioned options

3. Symmetric key can be replaced with----------------------------.a. Symmetric algorithmsb. Pair of public and private keysc. Asymmetric keyd. None of the mentioned options

4. In --------------------attack an attempt is made by the attacker to decrypt the message with every possible key.a. Key search attackb. Cryptanalysisc. System based d. None of the mentioned options

5. Most of the electronic payment systems on internet use ------------------to ensure confidentiality and security of the payment information.a. Quantum computingb. Cryptographyc. Both of the mentioned optionsd. None of the mentioned options

6. Simplicity and ----------------is the biggest advantage of Virtual PIN payment system.a. Full encryptionb. Dual encryptionc. No encryptiond. None of the mentioned options

7. In electronic checks which type of cryptography is useda. Both symmetric and asymmetricb. Symmetricc. Asymmetricd. None of the mentioned options

8. An electronic check book device is a combination of a. Hardware and a digital signature b. Software and information about user

c. Secure hardware and softwared. None of the mentioned options

9. Which of the following is disadvantage of virtual PIN payment system?a. Bogus purchases are possibleb. Stolen credit card number can be usedc. Only some extra copies of the information items are made in case of a

fraudd. All of the mentioned options are disadvantages of Virtual PIN payment system

10. FV stands fora. First Virtualb. Forward Virtualc. Famous virtuald. None of the mentioned options