eCommerce MCQ Questions and Solutions with Explanations | Commerce

All of the following are major categories of computer viruses except Trojan viruses. Trojan or Trojan horse is a type of malicious software. Trojan virus is designed to spy on the victims computer, access files or to extract sensitive data.

A financial cybermediary is an internet based company that makes it easy to transfer money from one person to another.

A worm is designed to spread from computer to computer. A computer worm is a standalone malware computer program that replicates itself in order to spread to other computers. Often, it uses a computer network to spread itself, relying on security failures on the target computer to access it.

Electronic check is a method of transferring money from one person's account to another. An electronic check, also referred to as an e-check, is a form of payment made via the Internet, or another data network, designed to perform the same function as a conventional paper check.

The correct answer is Option B: Black hats

Let's break down why:

* White hats: These are ethical hackers. Think of them as the "good guys" who use their skills to find and fix security vulnerabilities in systems and networks *before* the bad guys can exploit them. They have permission to hack.

* Black hats: These are the malicious hackers described in the question. They break into systems without permission, often with the intent to steal data, disrupt services, or cause other harm. They are the "bad guys."

* Grey hats: These hackers operate in a gray area. They might find vulnerabilities and disclose them publicly (sometimes even demanding a fee), or they might hack without permission but without malicious intent. Their motives are not always clear.

* Brown hats: This isn't a recognized term in the cybersecurity world. So, it's definitely not the right answer.

Therefore, since the question specifically mentions "intention of causing harm," the only fitting category is Black hats.

An electronic check is one form of online banking. An eCheck (or electronic check) is an electronic version of a paper check used to make payments online.

When hackers flood a Web site with useless traffic to overwhelm the network, it is called a Denial of Service (DoS) attack. A denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet.

If you need to transfer money to another person via the internet, the methods that could be use are financial cybermediary, electronic check and electronic bill presentment and payment.

The correct answer is A: availability
Let's break down why with an easy explanation:

E-commerce security aims to protect online transactions and data.
Encryption is a key tool in achieving this security, and it provides several protections.

* Confidentiality: Encryption makes sure that only the intended recipient can read the message. It scrambles the data so others can't understand it. So confidentiality is a dimension of e-commerce security provided by encryption.
* Message integrity: Encryption can ensure that the message hasn't been altered during transmission. If someone tries to tamper with it, the recipient will know. So message integrity is a dimension of e-commerce security provided by encryption.
* Nonrepudiation: Encryption, along with digital signatures, can make sure that the sender cannot deny sending the message. It proves they sent it. So nonrepudiation is a dimension of e-commerce security provided by encryption.
* Availability: This refers to making sure the system and data are accessible to authorized users when they need them. While security measures can *impact* availability (e.g., strong passwords might make it harder to log in if forgotten), encryption itself doesn't directly guarantee availability. Other measures like backups and redundancy are more crucial for availability.

Therefore, availability is NOT directly provided by encryption itself.

Electronic bill presentment and payment permits the transmission of a bill, along with payment of that bill, to be conducted over the Internet. Electronic Bill Payment & Presentment (EBPP) is a process, which companies use to collect payments via the Internet, direct dial access, Automated Teller Machine (ATM), or other electronic method. Electronic Bill Payment & Presentment is a core component of many financial institutions' online banking offerings.