Question 1

A certification authority is an independent and trusted third party empowered with responsibility to vouch for the identity of organizations and individuals engaging in Internet commerce.

Accepted Answer

A certification authority (CA) is indeed an independent and trusted third party that verifies the identity of parties involved in Internet transactions, providing a level of security and trust in online transactions.

Question 2

Polling is one technique used to control data collisions.

Accepted Answer

Polling is a technique used in computer networks to prevent data collisions by allowing the devices to take turns sending and receiving data.

Question 3

HTML tags are customized to delimit attributes,the content of which can be read and processed by computer applications.

Accepted Answer

HTML tags are used to define the structure and presentation of content on a webpage, not specifically to delimit attributes. Attributes are additional information provided within tags to modify their behavior or appearance.

Question 4

Cloud computing is the technology that has unleashed virtualization.

Accepted Answer

Virtualization technology predates cloud computing and serves as a foundational technology that enables the creation of cloud computing environments by allowing multiple virtual machines to run on a single physical hardware.

Question 5

A virtual private network:

Accepted Answer

A virtual private network is a private network that is created within a public network. It allows users to access resources on the network as if they were physically connected to it, while maintaining privacy and security through encryption and other means. Option A is describing a password-protected network, which is not necessarily private. Option C is describing an internet facility or service, but not specifically a VPN. Option D is referring to a URL or web address, not a VPN.

Question 6

A ping is an Internet maintenance tool that is used to test the state of network congestion and determine whether a particular host computer is connected and available on the network.

Accepted Answer

A ping is a tool used to check the connectivity status of a network host by sending a small data packet and waiting for a response. It is commonly used for troubleshooting network issues and determining network latency or packet loss.

Question 7

The most frequent use of EDI is in making vendor payments.

Accepted Answer

While EDI can be used for various business transactions, vendor payments are not the most frequent use. EDI is commonly used for tasks such as purchase orders, invoices, and shipping notices.

Question 8

In a hierarchical topology,network nodes communicate with each other via a central host computer.

Accepted Answer

In a hierarchical topology, nodes are arranged in a tree-like structure, with each node communicating with a central host computer or a higher-level node.

Question 9

EDI is the inter-company exchange of computer processible business information in standard format.

Accepted Answer

EDI (Electronic Data Interchange) is indeed the inter-company exchange of computer processible business information in standard format.

Question 10

To physically connect a workstation to a LAN requires a

Accepted Answer

To physically connect a workstation to a LAN, you need a network interface card (NIC) installed in the workstation. The NIC allows the computer to communicate with other devices on the LAN. The other options do not help facilitate a physical connection between the workstation and the LAN. A file server provides shared storage capabilities, a multiplexer combines multiple signals into one transmission line, and a bridge connects two LANs together.

Question 11

The intermediary in a smurf attack is also a victim.

Accepted Answer

In a smurf attack, the attacker sends ICMP echo requests to an IP broadcast address, spoofing the victim's IP address as the source. The multiple hosts responding to the broadcast floods the victim's network, causing it to become overwhelmed and inaccessible. The intermediary devices, such as routers, used by the attacker to send the spoofed packets are also flooded with responses from the other devices, causing them to become congested and unable to function properly. Therefore, intermediaries in a smurf attack are not intentionally victims but are affected by the attack nonetheless.

Question 12

One advantage of network technology is

Accepted Answer

File servers permit software and data to be shared with other network users, allowing for efficient collaboration and sharing of resources among network users. While A, B, and D are also advantages of network technology, they do not directly address the benefits of file sharing through a file server.

Question 13

A ping is used to test the state of network congestion and determine whether a particular host computer is connected and available on the network.

Accepted Answer

This statement is true. A ping sends a small packet of data from one computer to another and measures the time it takes for it to be sent and received to determine if the host is accessible on the network. It can also be used to assess network congestion by measuring the latency, or delay, in receiving responses from multiple hosts.

Question 14

A ping signal is used to initiate

Accepted Answer

The answer of A ping signal is used to initiate
...

Question 15

What do you call a system of computers that connects the internal users of an organization that is distributed over a wide geographic area?

Accepted Answer

An intranet is a private network that only allows access to internal users of an organization. It connects users that are distributed over a wide geographic area, allowing them to share information and resources. A LAN is a local area network, which typically refers to a network in a single location or building. A decentralized network can refer to any network that does not have a central authority or control, but does not necessarily describe a network connecting internal users of an organization. A multidrop network is a type of network where multiple devices are connected to a single communication line. Again, this does not necessarily describe a system connecting internal users of an organization.

Question 16

Which topology has a large central computer with direct connections to a periphery of smaller computers? Also in this topology,the central computer manages and controls data communications among the network nodes.

Accepted Answer

A star topology has a central computer called a hub or switch that is connected to smaller computers, known as nodes, via direct connections. The central computer manages and controls data communications among the network nodes. This topology is commonly used in local area networks (LANs) to provide centralized control and management of network traffic.

Question 17

Packet switching

Accepted Answer

The answer of Packet switching
...

Question 18

Network protocols fulfill all of the following objectives except

Accepted Answer

Network protocols are designed to facilitate communication and data exchange among various network devices while promoting compatibility and ensuring reliable performance. They provide a flexible and standardized framework for data transmission, error detection, and correction, security, and other critical functions of a networking system. However, they do not result in inflexible standards, as they are constantly evolving and adapting to the changing needs and trends of network technology.

Question 19

Cloud computing is decreasing as hardware resources become cheaper because acquisition of resources is slow and not scalable.

Accepted Answer

Cloud computing is actually increasing as hardware resources become cheaper. The acquisition of resources in the cloud is fast and highly scalable, making it an attractive option for businesses and organizations.

Question 20

The more individuals that need to exchange encrypted data,the greater the chance that the key will become known to an intruder.To overcome this problem,private key encryption was devised.

Accepted Answer

Private key encryption is also known as symmetric encryption, where the same key is used for both encryption and decryption. The problem of key distribution and the risk of the key becoming known to an intruder still exists in private key encryption. Public key encryption was actually devised to overcome these issues.

Quiz 12: Electronic Commerce Systems