Question 1

Which of the following did Sven Mattisson and Jaap Haartsen invent?
A) Ethernet
B) IrDA
C) WiMAX
D) Bluetooth

Accepted Answer

Sven Mattisson and Jaap Haartsen are credited with inventing Bluetooth technology.

Question 2

The amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following?
A) broadband
B) latency
C) baseband
D) bandwidth

Accepted Answer

Bandwidth refers to the amount of data, instructions, and information that can be transmitted over a communications channel in a given amount of time, usually measured in bits per second. Broadband and baseband refer to specific types of bandwidth, while latency refers to the delay in transmission that can occur over a communications channel. Therefore, the best choice is D - bandwidth.

Question 3

Which of the following kinds of modems is a modem that sends and receives digital data over and information to and from a digital line?
A) wireless
B) broadband
C) access
D) baseband

Accepted Answer

The answer of Which of the following kinds of modems...

Question 4

Which of the following can detect problems-such as why traffic is flowing slowly-on networks that use the TCP/IP protocol?
A) Ethernet analyzers
B) bit monitoring scripts
C) torrent flow apps
D) packet sniffer software

Accepted Answer

Packet sniffer software can intercept and log traffic passing over a network and can be used to detect problems such as slow traffic.

Question 5

For best performance of a communications channel, which of the following should be true?
A) bandwidth and latency should be low
B) bandwidth should be low and latency high
C) bandwidth should be high and latency low
D) bandwidth and latency should be high

Accepted Answer

High bandwidth allows for more data to be transmitted at a faster rate, while low latency ensures that there is minimal delay in the transmission. Therefore, for best performance, the bandwidth should be high and the latency should be low.

Question 6

Which of the following is a communications device that connects multiple computers together and transmits data to its correct destination on a network?
A) grid
B) multiplexer
C) baseband modem
D) router

Accepted Answer

A router is a hardware device that connects multiple computers together and transmits data to its correct destination on a network. It works by analyzing the data being sent over a network, determining the destination of the data, and then directing the data to the correct destination. A grid is a network of computers that work together to perform a specific task, such as computing complex calculations. A multiplexer is a device that combines multiple data streams into a single stream. A baseband modem is a type of modem that transmits data over a single channel.

Question 7

Which of the following terms is the time it takes a signal to travel from one location to another on a network?
A) latency
B) symmetry
C) frequency
D) delay register

Accepted Answer

Latency is the term used to describe the time it takes for a signal to travel from one location to another on a network. Symmetry refers to the balance of upstream and downstream data rates, frequency refers to the number of cycles per second in a signal, and delay register is not a commonly used term in networking.

Question 8

For smaller business and home networks, which of the following allows multiple computers to share a single broadband Internet connection such as through a cable modem or DSL modem?
A) multiplexer
B) router
C) grid
D) baseband modem

Accepted Answer

A router allows multiple computers to share a single broadband Internet connection by directing network traffic between the Internet and the local network. A multiplexer combines multiple signals into one and is typically used for transmitting data over a single communication channel. A grid is a network of computers or servers that work together to perform a task. A baseband modem is used for transmitting digital signals over a single communication channel.

Question 9

Which of the following kinds of devices is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device?
A) linkage
B) communications
C) dial-up
D) baseband

Accepted Answer

The term "communications" refers to any type of hardware that is capable of transmitting data, instructions, and information between a sending device and a receiving device. Linkage refers to a connection or bond between two things, and dial-up and baseband are specific types of communication technologies.

Question 10

Which of the following is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network?
A) wireless link
B) router
C) wireless access point
D) integral point

Accepted Answer

A wireless access point is a central device that allows for wireless communication between devices, whether they be other wireless devices or devices connected to a wired network. A wireless link could refer to any wireless connection, but it doesn't specify a central device. A router primarily directs data traffic and manages a network's internet connection. An integral point is not a commonly used term in computer networking.

Question 11

How many feet can the range of Bluetooth devices be extended with additional equipment?
A) 40
B) 45
C) 125
D) 325

Accepted Answer

The answer of How many feet can the range of...

Question 12

Which of the following terms identifies any network based on the 802.11 family of standards?
A) mesh
B) IEEE
C) Wi-Fi
D) FireWire

Accepted Answer

Wi-Fi is a term used to describe any network based on the 802.11 family of standards. Mesh (A) refers to a type of network topology, IEEE (B) is the organization that creates the standards for various technologies (including Wi-Fi), and FireWire (D) is a type of connection used primarily for high-speed data transfer between devices.

Question 13

Many home users are connecting multiple computers and devices together into a system. What is the name for this system?
A) home grid
B) file share
C) residential multiplex
D) home network

Accepted Answer

The name for this system is a home network. A home network allows multiple computers and devices to connect together and share resources, such as internet access, printers, and files.

Question 14

Which of the following has the fastest transfer rate?
A) Cable
B) DSL
C) ISDN
D) FTTP

Accepted Answer

FTTP (Fiber to the premises) has the fastest transfer rate because it uses fiber optic cables to deliver internet directly to the premises, which can achieve download speeds up to 1 Gbps.

Question 15

How many wired and/or wireless computers and mobile devices might a router be able to connect?
A) more than 200
B) more than 450
C) more than 500
D) There is no limit.

Accepted Answer

The answer of How many wired and/or wireless computers and...

Question 16

Which of the following enables a computer or device that does not have built-in networking capability to access a network?
A) hub
B) packet
C) NIC
D) router

Accepted Answer

A NIC (Network Interface Card) is a hardware component that enables a computer or device that does not have built-in networking capability (such as a desktop computer) to access a network. It provides a physical connection to a network, allowing the computer to send and receive data over the network. Hubs, routers, and packets all play important roles in computer networking, but they do not directly enable a computer to access a network on their own.

Question 17

Which of the following can be avoided if a computer or mobile device has a motherboard that integrates networking capability?
A) hub
B) packet
C) node
D) NIC

Accepted Answer

If a motherboard integrates networking capability, there is no need for a separate Network Interface Card (NIC). However, a hub, packet, and node are not related to the presence or absence of networking capability on the motherboard.

Question 18

Which of the following defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology?
A) NFC
B) IrDA
C) VoIP
D) WiMAX

Accepted Answer

NFC (Near Field Communication) is a technology that uses close-range radio signals to communicate between two devices or objects equipped with this technology. IrDA (Infrared Data Association) uses infrared light to transmit data and is not commonly used in modern devices. VoIP (Voice over Internet Protocol) is a technology that allows voice communication over the internet. WiMAX (Worldwide Interoperability for Microwave Access) is a wireless communication technology that provides high-speed internet access over long distances. None of these technologies involve close-range radio signals for communication, unlike NFC.

Question 19

Which of the following has the fastest transfer rate?
A) T3
B) ATM
C) Fractional T1
D) FTTP

Accepted Answer

The answer of Which of the following has the fastest...

Question 20

Which of the following is true of DSL?
A) It is a popular digital line alternative for the small business or home user.
B) Users share DSL nodes with up to hundreds of other users.
C) It uses a line that is shared with other users in the neighborhood.
D) It has widespread availability.

Accepted Answer

DSL is a popular digital line alternative for the small business or home user. Option B is incorrect because DSL uses dedicated lines instead of shared nodes. Option C is incorrect because DSL uses a dedicated line to the provider's nearest central office. Option D is also incorrect because DSL availability depends on the distance between the user's location and the provider's central office.

Quiz 10: Communications and Networks: Sending and Receiving Digital Content

Which of the following did Sven Mattisson and Jaap Haartsen invent?

The amount of data, instructions, and information that can travel over a communications channel sometimes is called which of the following?

Which of the following kinds of modems is a modem that sends and receives digital data over and information to and from a digital line?

Which of the following can detect problems-such as why traffic is flowing slowly-on networks that use the TCP/IP protocol?

For best performance of a communications channel, which of the following should be true?

Which of the following is a communications device that connects multiple computers together and transmits data to its correct destination on a network?

Which of the following terms is the time it takes a signal to travel from one location to another on a network?

For smaller business and home networks, which of the following allows multiple computers to share a single broadband Internet connection such as through a cable modem or DSL modem?

Which of the following kinds of devices is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device?

Which of the following is a central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network?

How many feet can the range of Bluetooth devices be extended with additional equipment?

Which of the following terms identifies any network based on the 802.11 family of standards?

Many home users are connecting multiple computers and devices together into a system. What is the name for this system?

Which of the following has the fastest transfer rate?

How many wired and/or wireless computers and mobile devices might a router be able to connect?

Which of the following enables a computer or device that does not have built-in networking capability to access a network?

Which of the following can be avoided if a computer or mobile device has a motherboard that integrates networking capability?

Which of the following defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology?

Which of the following has the fastest transfer rate?

Which of the following is true of DSL?