Question 1

Which of the following statements is true of digital subscriber lines (DSLs)?

Accepted Answer

DSL signals are transmitted on a different frequency than voice telephone service, so they do not interfere with each other. B is not true as DSL speeds and services can vary based on provider and location. C is not true as DSL uses telephone lines, not television lines. D is partially true as DSL uses standardized protocols, but there are different versions and variations of DSL protocols.

Question 2

A ________ is a networking device that detects the speed that a given device on a LAN can handle and communicates with it at that speed.

Accepted Answer

A switch is a networking device that can detect the speed at which a device on a LAN can handle data transmission and will communicate with that device at that speed. This allows for more efficient communication on the network, as the switch can optimize its data transmission rates based on the capabilities of each device. A bus is a type of computer architecture, and a SOHO LAN is a type of network used in small offices or home offices. A domain typically refers to a group of computers or other devices that are managed together using a centralized system.

Question 3

The distinguishing characteristic of a local area network (LAN)is that ________.

Accepted Answer

The distinguishing characteristic of a local area network (LAN) is that it connects at a single location, typically within a building or campus. LANs are designed to connect devices that are located in close physical proximity to each other, such as computers, printers, and servers within an office or school. Option A is incorrect because LANs typically connect at a single location, although multiple devices can connect to the LAN from that location. Option B is incorrect because while LANs can span multiple buildings or floors, they are still considered to be a single network connecting devices in a specific location. Option D is incorrect because a LAN is not a network of networks, but rather a standalone network connecting devices in a specific location.

Question 4

The IEEE 802.3 protocol standard is also known as ________.

Accepted Answer

The IEEE 802.3 protocol standard is commonly known as Ethernet, which is the most widely used LAN (Local Area Network) technology. It defines the physical and data link layer specifications for wired Ethernet networks. Option A (TCP/IP) is a protocol suite, which includes multiple protocols such as TCP, IP, DNS, HTTP, etc. Option C (HTTP) is an application layer protocol used for communication over the World Wide Web. Option D (Bluetooth) is a wireless communication technology used for short-range data exchange.

Question 5

Which protocol standard used for wired LAN connections specifies hardware characteristics such as the signal to be carried by each wire?

Accepted Answer

Ethernet is the protocol standard used for wired LAN connections and it specifies the hardware characteristics such as the signal to be carried by each wire. Intranet is a private network accessible only to an organization's members, RuBee is a wireless communication standard, and WiMax is a wireless broadband technology.

Question 6

Which of the following statements is true about LANs and their components?

Accepted Answer

C is true - kbps stands for kilobits per second. 
A is false - the M in Mbps stands for Mega, which represents 1000x not 1024x. 
B is false - the numbers in “10/100/1000 Ethernet” represent the maximum data transfer rate in Megabits per second (Mbps). 
D is false - IEEE 802.11ac is the current standard for wireless LAN, not wired LAN.

Question 7

A(n)________ connects computers at different geographic locations.

Accepted Answer

A WAN (Wide Area Network) is designed to connect computers and resources over a large geographical area, such as between different buildings, cities, or even countries. SOHO LAN (Small Office/Home Office Local Area Network) are designed for local connections within a small area. Ethernet and LAN are both types of networking technology that can be used in both WANs and LANs, but do not specifically connect computers across different geographical locations.

Question 8

Which of the following statements is true of an ISP?

Accepted Answer

An ISP (Internet Service Provider) serves as a user's gateway to the Internet by providing them with access to the Internet through its network infrastructure. ISPs typically require users to pay a fee for their services, so B is not true. C is incorrect because an ISP facilitates bidirectional data transfer between the user's computer and the Internet. A is also not true because a DSL filter is used to separate phone signals from data signals on a DSL line, and this is typically installed at the user's location, not by the ISP.

Question 9

Devices such as wireless mice and keyboards use ________ to connect to the computer.

Accepted Answer

Wireless mice and keyboards use Bluetooth technology to connect to the computer.

Question 10

With a WAN,an organisation can place communications lines wherever it wants because all lines reside on its premises.

Accepted Answer

This statement is false. A WAN (Wide Area Network) allows an organization to connect multiple geographically dispersed locations over a larger area, such as a city, country, or even internationally. It does not necessarily mean that all the communication lines reside on its premises. WAN connections typically utilize leased lines from service providers who have their own infrastructure and network equipment in place. These lines often pass over public or private telecommunications networks, so the organization does not have complete control over them.

Question 11

A protocol is a set of rules that programs on two communicating devices follow.

Accepted Answer

A protocol is a set of rules that programs on two communicating devices follow to establish and maintain communication.

Question 12

A(n)________ is a set of rules that programs on two communicating devices follow.

Accepted Answer

A protocol is a set of rules that governs the communication between two devices. It defines the format, sequence, and error checking of messages exchanged between the devices.

Question 13

A ________ is used to provide seamless flow of data across networks.

Accepted Answer

A layered protocol, such as the OSI model, is designed to provide a seamless flow of data across different networks and protocols. Each layer of the protocol stack is responsible for a specific set of functions, and communication between layers enables reliable and efficient transmission of data. While web pages, databases, and commerce servers can all play a role in network communication, they are not specifically designed to provide seamless flow of data across networks.

Question 14

A private internet that is used exclusively within an organisation is also called an intranet.

Accepted Answer

An intranet is a private network that is only accessible within an organization. It is typically used for internal communication, collaboration, and information sharing.

Question 15

What is the difference between a LAN and a WAN? Give an example of how each one could be used in business.

Accepted Answer

The answer of What is the difference between a LAN...

Question 16

A LAN would be used to connect computers located in Seattle and Philadelphia.

Accepted Answer

The answer of A LAN would be used to connect...

Question 17

Which of the following protocols is commonly used by wired LAN?

Accepted Answer

IEEE 802.3 (also known as Ethernet) is the most commonly used protocol for wired LANs. EVDO and WiMax are wireless protocols, while DSL is a protocol used for broadband internet connections.

Question 18

Which of the following is the protocol commonly used for wireless LAN?

Accepted Answer

IEEE 802.11 is the most commonly used protocol for wireless LAN, also known as Wi-Fi. A is incorrect as LISTSERV is a software application used for managing and distributing electronic mailing lists. B is incorrect as IEEE 802.3 is the protocol commonly used for wired LAN, also known as Ethernet. D is incorrect as DSL (Digital Subscriber Line) is a technology used for high-speed internet access over traditional telephone lines.

Question 19

The computers in two separate company sites must be connected using a ________.

Accepted Answer

A WAN (Wide Area Network) is used to connect computers across different geographical locations, such as two separate company sites.

Question 20

Which of the following statements about LAN protocols is true?

Accepted Answer

The answer of Which of the following statements about LAN...

Quiz 20: Network and Cloud Technology

Which of the following statements is true of digital subscriber lines (DSLs) ?