CGS 2060 CH.10

Which of the following is an earth-based reflective dish that contains the antenna, transceivers, and other equipment necessary for microwave communications?

microwave station

Which of the following is the greatest problem with regard to a bus network?

The bus itself might become inoperable.

Which of the following is the maximum transfer transmission rate for communications satellites?

2.56 Tbps

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

bandwidth should be high and latency low

Which of the following is the data transfer rate equivalent to one million bits per second?

Mbps

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

Wi-Fi

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?

broadband

On a network such as the one illustrated in the accompanying figure, if one node fails, as long as that node is not providing services to other nodes on the network, what happens?

only that node is affected

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

more than 200

The design of computers, devices, and media in a network is categorized as either client/server or peer-to-peer. What is the term used to refer to this characterization?

network architecture

Which of the following kinds of cable consists of a single copper wire surrounded by at least three layers: an insulating material, a woven or braided metal, and a plastic outer coating?

coaxial

Which of the following is a wireless transmission medium that distributes radio signals through the air over long distances?

broadcast radio

Which of the following is true of broadcast radio with regard to physical transmission media?

It is slower and more susceptible to noise.

Digital communications describes a process in which two or more computers or devices transfer all of the following EXCEPT ____.

networks

Which of the following is true of the installation of a network like the one shown in the accompanying figure?

It can span a larger distance than a bus network, but it is more difficult.

Microwave transmission involves sending signals from one microwave station to another. What is this often called?

fixed wireless

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

bandwidth

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?

communications

Which of the following is the least likely technology PANs would use?

peer-to-peer

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

325

Which of the following is a network standard that specifies no central computer or device on the network should control when data can be transmitted?

Ethernet

As illustrated in the accompanying figure, on what kind of network must all of the computers and devices (nodes) on the network connect to a central device?

star network

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

NIC

Which of the following has the fastest transfer rate?

ATM

Which of the following is a transmission media on which data, instructions, or information travel?

communications channel

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?

router

Which of the following terms is an electrical disturbance that can degrade communications?

noise

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

NIC

What is the maximum transfer transmission rate for Bluetooth?

24 Mbps

Who invented the Ethernet?

Robert Metcalfe

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

Bluetooth

The type of network shown in the accompanying figure, describes a network in which each computer has equal responsibilities and capabilities. What is this kind of network called?

P2P

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

bandwidth should be high, and latency low

Which of the following are radio waves that provide a high-speed signal transmission?

microwaves

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

home network

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

packet sniffer software

On what kind of network, such as that illustrated in the accompanying figure, do one or more computers act as a server and the other computers on the network request services from the server?

client/server

Which of the following is true of DSL?

It is a popular digital line alternative for the small business or home user.

Which of the following is a LAN that uses no physical wires?

WLAN

On a network such as the one illustrated in the accompanying figure, what kind of computer controls access to the hardware, software, and other resources on the network and provides a centralized storage area for programs, data, and information?

host

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

router

Which of the following is a simple, inexpensive network that typically connects fewer than 10 computers?

peer-to-peer network

On a network such as the one illustrated in the accompanying figure, some servers perform a specific task and can be placed with other servers to perform multiple tasks. What are these kind of servers call?

dedicated

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

NFC

CGS 2060 CH.10 - Subjecto.com

CGS 2060 CH.10

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Which of the following is an earth-based reflective dish that contains the antenna, transceivers, and other equipment necessary for microwave communications?

microwave station

Which of the following is the greatest problem with regard to a bus network?

The bus itself might become inoperable.

Which of the following is the maximum transfer transmission rate for communications satellites?

2.56 Tbps

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

bandwidth should be high and latency low

Which of the following is the data transfer rate equivalent to one million bits per second?

Mbps

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

Wi-Fi

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?

broadband

On a network such as the one illustrated in the accompanying figure, if one node fails, as long as that node is not providing services to other nodes on the network, what happens?

only that node is affected

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

more than 200

The design of computers, devices, and media in a network is categorized as either client/server or peer-to-peer. What is the term used to refer to this characterization?

network architecture

Which of the following kinds of cable consists of a single copper wire surrounded by at least three layers: an insulating material, a woven or braided metal, and a plastic outer coating?

coaxial

Which of the following is a wireless transmission medium that distributes radio signals through the air over long distances?

broadcast radio

Which of the following is true of broadcast radio with regard to physical transmission media?

It is slower and more susceptible to noise.

Digital communications describes a process in which two or more computers or devices transfer all of the following EXCEPT ____.

networks

Which of the following is true of the installation of a network like the one shown in the accompanying figure?

It can span a larger distance than a bus network, but it is more difficult.

Microwave transmission involves sending signals from one microwave station to another. What is this often called?

fixed wireless

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

bandwidth

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?

communications

Which of the following is the least likely technology PANs would use?

peer-to-peer

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

325

Which of the following is a network standard that specifies no central computer or device on the network should control when data can be transmitted?

Ethernet

As illustrated in the accompanying figure, on what kind of network must all of the computers and devices (nodes) on the network connect to a central device?

star network

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

NIC

Which of the following has the fastest transfer rate?

ATM

Which of the following is a transmission media on which data, instructions, or information travel?

communications channel

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?

router

Which of the following terms is an electrical disturbance that can degrade communications?

noise

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

NIC

What is the maximum transfer transmission rate for Bluetooth?

24 Mbps

Who invented the Ethernet?

Robert Metcalfe

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

Bluetooth

The type of network shown in the accompanying figure, describes a network in which each computer has equal responsibilities and capabilities. What is this kind of network called?

P2P

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

bandwidth should be high, and latency low

Which of the following are radio waves that provide a high-speed signal transmission?

microwaves

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

home network

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

packet sniffer software

On what kind of network, such as that illustrated in the accompanying figure, do one or more computers act as a server and the other computers on the network request services from the server?

client/server

Which of the following is true of DSL?

It is a popular digital line alternative for the small business or home user.

Which of the following is a LAN that uses no physical wires?

WLAN

On a network such as the one illustrated in the accompanying figure, what kind of computer controls access to the hardware, software, and other resources on the network and provides a centralized storage area for programs, data, and information?

host

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

router

Which of the following is a simple, inexpensive network that typically connects fewer than 10 computers?

peer-to-peer network

On a network such as the one illustrated in the accompanying figure, some servers perform a specific task and can be placed with other servers to perform multiple tasks. What are these kind of servers call?

dedicated

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

NFC

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