IT430 Final Term Quiz MCQs

IT430 MCQs Solved-Mehreen Humayun(Lesson01- · 37) · IT430-E-Commerce · MCQ-Lesson 1 to 37

Solved by Mehreen Humayun

At minting stage, the serial number is ……………..by E-Cashbank.

Known

Unknown

Secret Forwarded Lesson 27

Serial number (unknown)

E-Cash payment system requires special software on both buyer and merchant sides.

True

Flase Lesson 26

DES, IDEA, RC2, RC4 and Rinjdael are examples of _________.

Symmetric key algorithms

Asymmetric key algorithms Public key algorithms Private key algorithms Lesson 24 Cryptographic algorithms are measured in terms of key length. Following is the list of some popularsymmetric key algorithms: DES (Data Encryption Standard) – 56 bits IDEA (International Data Encryption Algorithm (IDEA) – 128 bits RC2 – (block cipher) 1-2048 bits RC4 (stream cipher) – 1-2048 bits Rinjdael – 128-256 bits

Currency used in E-Cash Payment system is called _________.

Coin

Penny Cent Dollar Lesson 26 E-cash Coins: The currency used in this payment system is called an e-cash coin or simply coin.

User generates blank electronic check by using his checkbook device.

True

False Lesson 25 A payer uses the electronic check book device in his computer system to generate a blank electronic check after filling the information regarding amount, date etc., and the electronic check is digitally signed by the payer through his private key.

It is necessary for both buyer and seller to have their account in the ---------Ebank.

Same

Separate Any partially same Lesson 25 The centralized bank (depending upon its policy) charges a transaction fees either from the payer, or payeeor both on funding an account or withdrawing funds from an account or receiving payments by thepayee/merchant. This payment model requires that all participants must have their account with the samecentral payment system/bank.

Which of the following represents correct sequence of steps for electronic check payment system?

Payer’s bank ? Payee ? Payee’s bank ? Payer Payer’s bank ? Payee’s bank ? Payer ? Payee

Payer ? Payee ? Payee’s bank ? Payer’s bank

Payee’s bank ? Payer’s bank ? Payee ? Payer Lesson 25

Fig. 2

Attacker attempts to decrypt the message with every possible key in ______.

Key Search Attacks

Cryptanalysis System-Based Attacks None Lesson 24 Key Search (Brute Force) Attacks: In this type of attack an attempt is made by the attacker to decrypt the message with every possible key. Thus, the greater the key length, the more difficult it is to identify the key.

For online sales promotion different websites use ------------

coupons

Billboards add given at different websites are come in ---------------------

partnering promotions

Lesson 31 Banner Advertising: Web page banner ads are like small billboards containing graphics and an advertising message.

In E-Cash Payment system, the software installed on buyer’s computer is called

Cyber-locker

Cyber-wallet

Cyber-bank Cyber-account Lesson 26 Buyers withdraw coins against their account and store them in e-cash wallet software (Cyber wallet) on their computer.

Term spamming is used to refer -------------

Bulk e-mails Direct mailing Single e-mail

Both Bulk e-mails and Direct mailing

Lesson 31 Spamming is a term used to refer to mass e-mailing to customers who have not expressed any interest in a specific product or service. E-mails can be combined with traditional direct marketing. Telemarketing (live interaction through telephone) and emails can be combined to reach prospective customers. Similarly, direct mailing and emails can also be combined.