Question 1

In the context of data communication,which of the following is true of e-collaboration?
A)It promotes face-to-face interactions among individuals.
B)It reduces decision makers' effectiveness.
C)It increases the cost involved in data communication.
D)It improves customer service.

Accepted Answer

E-collaboration refers to the use of technology to facilitate communication and collaboration among individuals or teams. One of the benefits of e-collaboration is that it can improve customer service by allowing organizations to communicate with their customers more easily and efficiently. Therefore, option D is the correct answer. Option A is incorrect because e-collaboration does not promote face-to-face interactions, as it relies on technology to facilitate communication. Option B is incorrect because e-collaboration can actually increase decision makers' effectiveness by providing them with more information and enabling them to collaborate more effectively with others. Option C is incorrect because e-collaboration can actually reduce the cost involved in data communication by eliminating the need for travel and other associated costs.

Question 2

A ring topology needs more cables to connect the nodes within a network than a star topology.

Accepted Answer

In a ring topology, each node is connected to exactly two other nodes, forming a single continuous pathway for signals through each node - a ring. In contrast, a star topology connects all nodes independently to a central hub, requiring more cables if the number of nodes is greater than three, as each node needs its own cable to connect to the hub.

Question 3

In the context of mobile networking,3G networks have decreased the quality of Internet telephony or Voice over Internet Protocol (VoIP).

Accepted Answer

This statement is false. 3G networks have actually improved the quality of internet telephony or Voice over Internet Protocol (VoIP). The higher data transfer rates and improved network coverage of 3G networks allow for better voice quality and fewer dropped calls during VoIP calls.

Question 4

The bus topology connects nodes along a network segment,with the ends connected in a manner similar to a ring topology.

Accepted Answer

In a bus topology, all nodes are connected to a single cable (the bus) with terminators at each end; it does not connect the ends in a manner similar to a ring topology.

Question 5

The data transfer speeds of local area networks (LANs)typically range from 100 Mbps to 10 Gbps.

Accepted Answer

This is true. LANs typically operate at speeds ranging from 100 Mbps to 10 Gbps depending on the technology and equipment used.

Question 6

In _____ data transmission,multiple pieces of data are sent simultaneously to increase the transmission rate.
A)narrowband
B)baseband
C)broadband
D)sideband

Accepted Answer

Broadband data transmission sends multiple pieces of data simultaneously, allowing for faster transmission rates. Narrowband and baseband transmissions typically send one piece of data at a time, while sideband is a frequency band used alongside a carrier signal in some types of transmission but not necessarily for transmitting multiple pieces of data simultaneously.

Question 7

Any packet-switching network can handle multimedia data.

Accepted Answer

Packet-switching networks can handle different types of data, including multimedia data, by breaking it up into smaller packets and transmitting them separately. This allows for more efficient use of network resources and can support the transmission of real-time interactive applications like video conferencing and multimedia streaming.

Question 8

_____ is the electronic transfer of data from one location to another.
A)Data communication
B)Data interpretation
C)Data mining
D)Data exchange

Accepted Answer

Data communication is the process of sending and receiving data between two or more devices or locations through a communication channel or network. This includes electronic transfer of data through various mediums such as wired or wireless connection, internet, intranet, or extranet.

Question 9

An access point (AP)is the part of a wireless local area network (WLAN)that connects it to other networks.

Accepted Answer

This is a true statement. An access point is a device that allows devices (such as smartphones, tablets, or laptops) to connect to a wireless network, and it serves as a bridge between the wireless network and other networks, such as the internet.

Question 10

Data communication systems increase inventory costs.

Accepted Answer

This statement is not true. Data communication systems can actually decrease inventory costs by improving supply chain efficiency and reducing the need for excessive inventory levels.

Question 11

_____ is the amount of data that can be transferred from one point to another in one second.
A)Bandwidth
B)Packet
C)Latency
D)Protocol

Accepted Answer

Bandwidth is the term used to describe the speed or capacity of a network connection. It represents the amount of data that can be transferred in a given amount of time, usually expressed in bits per second (bps), kilobits per second (kbps), or megabits per second (Mbps).

Question 12

Narrowband is capable of transmitting a maximum of 60,000 bps.

Accepted Answer

The answer of Narrowband is capable of transmitting a maximum...

Question 13

Bandwidth is often expressed as _____.
A)meters per second
B)bits per second
C)amperes per second
D)moles per second

Accepted Answer

Bandwidth is the amount of data that can be transmitted in a specific amount of time and is therefore most commonly expressed as bits per second.

Question 14

Ethernet is a standard communication protocol embedded in software and hardware devices used for building a local area network (LAN).

Accepted Answer

Ethernet is indeed a standard communication protocol used for building LANs, and it is implemented in both software and hardware devices.

Question 15

Terrestrial microwave systems use Earth-based transmitters and receivers for transmitting data.

Accepted Answer

Terrestrial microwave systems do use Earth-based transmitters and receivers for transmitting data.

Question 16

Data communication technologies make Web and video conferencing easier,which can reduce the costs of business travel.

Accepted Answer

Data communication technologies such as video conferencing and web conferencing allow for remote meetings and collaboration, which can reduce the need for expensive business travel.

Question 17

In a centralized processing system,processing power is distributed among several locations.

Accepted Answer

In a centralized processing system, processing power is concentrated in a single location, rather than being distributed among several locations.

Question 18

Protocols are devices that connect users to the Internet.

Accepted Answer

Protocols are sets of rules that govern the communication between devices on a network, but they are not devices themselves. Devices that connect users to the internet include modems, routers, and network adapters.

Question 19

Distributed processing maintains decentralized control and centralized operations.

Accepted Answer

Distributed processing involves decentralized control and operations, allowing tasks to be divided among multiple computers for efficiency and redundancy.

Question 20

Wireless network traffic can be captured with sniffers.

Accepted Answer

Wireless network traffic can be captured with sniffers that are used to analyse and monitor the data flowing through a wireless network. These sniffers can intercept and decode wireless signals, allowing an attacker to gain access to sensitive information, such as usernames, passwords and credit card numbers.

Quiz 6: Data Communication: Delivering Information Anywhere and Anytime

In the context of data communication,which of the following is true of e-collaboration?