Question 1

Medium capacity is the difference between the highest and the lowest frequencies that can be transmitted on a single medium, and it is a measure of the medium's capacity.

Accepted Answer

The term "medium capacity" is not typically used to describe the difference between the highest and lowest frequencies; that is known as "bandwidth." Medium capacity generally refers to the overall ability of a medium to carry data, which can be influenced by factors like bandwidth, signal-to-noise ratio, and error rates.

Question 2

Some leading-edge farmers use GPS satellite navigation to map and analyze fields, telling the farmers where to apply the proper amounts of seeds, fertilizer, and herbicides.

Accepted Answer

GPS satellite navigation can be used by farmers to map and analyze fields, allowing them to make informed decisions on where and how much of certain inputs to apply to maximize yields and reduce waste.

Question 3

A PDA differs from a normal cell phone in that it has an operating system and local storage, so users can add and store data, send and receive email, and install programs to the phone as they could with a smartphone.

Accepted Answer

The answer of A PDA differs from a normal cell...

Question 4

The global positioning system is owned and operated by the U.S. Department of Defense and is not available for general use around the world.

Accepted Answer

This statement is false. While the global positioning system was initially developed by the U.S. Department of Defense for military purposes, it is available for civilian use around the world.

Question 5

Value-added network (VAN) is a private network, provided by a third party, for exchanging information through a high capacity connection.

Accepted Answer

A value-added network (VAN) is indeed a private network provided by a third party for exchanging information through a high capacity connection.

Question 6

Wireless means the technology can travel with the user, but it is not necessarily in real-time.

Accepted Answer

Mobile means the technology can travel with the user, but it is not necessarily in real time.

Question 7

________ is a company that provides individuals and other companies access to the Internet along with additional related services, such as website-building.

Accepted Answer

The answer of ________ is a company that provides individuals...

Question 8

VPN is a way to use the public telecommunication infrastructure (e.g., Internet) to provide secure access to an organization's network.

Accepted Answer

VPN stands for Virtual Private Network, which uses encryption and other security measures to establish a secure connection over the internet between a remote user and an organization's network. This allows employees to access the network remotely while maintaining the security and privacy of the data being transmitted.

Question 9

____________________ has long been one of the most popular VoIP options for consumers-largely because of its low cost.

Accepted Answer

The answer of ____________________ has long been one of the...

Question 10

The term wireless refers to any type of electrical or electronic operation that is accomplished without the use of a "hard wired" connection.

Accepted Answer

Wireless technology allows communication and transmission of data without the need for physical cables or wires. This can include Wi-Fi, Bluetooth, and cellular networks among others.

Question 11

The term mobile refers to any type of electrical or electronic operation that is accomplished without the use of a "hard wired" connection.

Accepted Answer

The answer of The term mobile refers to any type...

Question 12

Common examples of wireless devices include cellular phones and pagers, GPS, and two-way radios.

Accepted Answer

These are all examples of wireless devices.

Question 13

Mobile means the technology can travel with the user, but it is not necessarily in real-time.

Accepted Answer

Mobile technology refers to the ability to use computing devices (such as smartphones or tablets) while on the go, but it does not necessarily mean that the technology is always connected in real-time. It can also refer to devices and applications that can be used offline and then synced later.

Question 14

LAN is a way to use the public telecommunication infrastructure (e.g., Internet) to provide secure access to an organization's network.

Accepted Answer

A LAN (Local Area Network) is a network that connects devices within a limited area, such as a building, and does not use public telecommunication infrastructure like the Internet. The description given is more akin to a VPN (Virtual Private Network).

Question 15

FedEx's famous tracking system, which can find a package's location from its tracking number, uses a wireless courier-management system.

Accepted Answer

FedEx's tracking system does indeed use a wireless courier-management system to locate packages. This system uses mobile devices and wireless networks to track and manage deliveries, providing real-time updates on the status and location of packages.

Question 16

The term bandwidth generally refers to high-speed Internet connections transmitting data at speeds greater than 200 kilobytes per second (Kbps), compared to the 56 Kbps maximum speed offered by traditional dial-up connections.

Accepted Answer

Bandwidth generally refers to the amount of data that can be transmitted in a fixed amount of time, typically measured in bits per second (bps), not specifically to high-speed Internet connections or a specific speed threshold.

Question 17

LAN is a private network, provided by a third party, for exchanging information through a high capacity connection.

Accepted Answer

LAN stands for Local Area Network, which is a network owned and operated by an organization or individual for their private use. It is not provided by a third party.

Question 18

Much like data, VoIP traffic can be__________________, captured, or modified.

Accepted Answer

The answer of Much like data, VoIP traffic can be__________________,...

Question 19

An Internet service provider (ISP) is a company that provides individuals and other companies access to the Internet along with additional related services, such as website-building.

Accepted Answer

An ISP provides internet access and related services, which can include website-building.

Question 20

Skype has long been one of the most popular VoIP options for consumers-largely because of its low cost.

Accepted Answer

Skype's popularity is largely due to its low cost and availability for consumers.

Quiz 6: Databases and Data Warehouses