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4. What is e-Commerce? Explain the steps to achieve a secure data transmission in e-commerce.
Ans. e-Commerce, also known as electronic commerce or Internet commerce, refers to the buying or selling of
goods or services over the Internet. Following are the essential requirements for secure data transmission:
Confidentiality: Information uploaded during e-Commerce transaction should not be accessible to
an unauthorized user. It should not be intercepted during the transmission of details.
Integrity: Information should not be altered during its transmission over the network.
Authenticity: There should be a mechanism to authenticate a user before giving him/her an access to
the required information.
Encryption: Information should be encrypted and decrypted only by an authorized user.
Auditability: Data should be recorded in such a way that it can be audited for integrity requirements.
C. Application Based Question.
Raman is working on the Internet. Identify which of the following should be adopted as formal guidelines while
working on the Internet:
i. Do not send insensible messages.
ii. Do not be sensitive while communicating online.
iii. Disclose all personal information.
iv. Never rely the people you meet online, they may not be disclosing their complete identity.
v. Always respect other people’s privacy.
vi. Always share authentic information only.
Ans. i., iv., v. and vi. should be adopted while working online.
Unsolved Exercise
SECTION A
(Objective Type Questions)
A. Multiple choice questions.
1. Which of the following techniques can be used for data security? [CBSE SQP 2021]
i. Authentication ii. Authorization
iii. Encryption iv. All of these
2. A Firewall is ............................ .
i. Used to protect a computer room from flood and fire
ii. A form of virus
iii. A screen saver
iv. None of these
3. Insensible messages that are sent in a social group or during a chat are referred to as ............................ .
i. Spamming ii. Fake messages
iii. Flaming iv. Virus
4. Digital property includes ............................ .
i. Emails ii. Spreadsheets
iii. Audio files iv. All of these
206 Touchpad Computer Applications-X

