question

You own a third-party business that provides networking services such as EDI, secure data, and information transfer, storage, and email. Into what category of business does this business fall?

answer

VAN

question

Wi-Fi networks easily can be integrated with wired Ethernet networks.

answer

True

question

A WLAN cannot communicate with a wired LAN.

answer

False

question

Consumers can purchase blank NFC tags at a reasonable cost and easily program them to perform certain actions.

answer

True

question

What is the term used to connect a device to a network that has an IP address?

answer

Node

question

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

answer

Bandwidth

question

Which of the following technologies is your new inventory tracking system at your small business most likely to use?

answer

UWB

question

A MAN typically includes one or more WANs like those shown in the accompanying figure, but covers a smaller geographic area than a LAN.

answer

False

question

Which of the following has a port to which a cable connects in order to coordinate the transmission and receipt of data, instructions, and information to and from the computer or device containing it?

answer

Network Interface Card

question

Users connected to a network have access to a software on the network.

answer

True

question

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

answer

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

question

Infrared (IR) is a wireless transmission medium that sends signals using infrared light waves.

answer

True

question

Each token ring network has several tokens.

answer

False

question

Which of the following statements best describes the Ethernet network standard?

answer

No central computer or device on the network should control when data can be transmitted.

question

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

answer

Packet Sniffer Software

question

Some mobile users have a wireless modem that uses a mobile phone provider's network to connect to the internet wirelessly from a computer or other mobile devices.

answer

True

question

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

answer

Bandwidth should be high and latency low

question

Which of the following is a 4G standard?

answer

LTE

question

What is another term for servers that control access to the hardware, software, and other network resources?

answer

Host Computers

question

On a client/ server network, the client sometimes is called a host computer.

answer

False

question

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

answer

Microwave Station

question

On a ring network, if the hub fails the entire network is inoperable until the hub is repaired.

answer

False

question

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

answer

The bus itself might become inoperable.

question

Phone networks, the internet, and other networks with large amounts of traffic use ATM.

answer

True

question

Which of the following technologies is your new remote control most likely to use?

answer

IrDA

question

Your smartphone, digital camera, and printer are all part of a network in your workspace. What type of network is likely in use?

answer

PAN

question

A DSL modem converts digital signals to analog signals and vice versa so that data can travel along an analog phone line.

answer

False

question

How are standards such as EDI used by businesses?

answer

To define how data transmits across transmission media

question

The star topology is primarily used for LANs but it is also used in WANs.

answer

False

question

Which of the following has the fastest transfer rate?

answer

FTTP

question

Which of the following statements is not true of Wi-Fi?

answer

Even if two products are Wi-Fi Certified, they must share the same platform in order to communicate.

question

Which of the following is not a technology used by hot spots?

answer

UWB

question

What does EFT stand for?

answer

Electronic Funds Transfer

question

What is the term for a communications device that connects multiple computers together and transmits data to its correct destination on a network?

answer

A Router

question

Which of the following best describes DSL connections?

answer

Transmits at fast speeds on existing standard copper telephone wiring; popular for small business or home user

question

Which of the following communications technologies does not use broadcast radio signals?

answer

IR

question

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?

answer

Star Network

question

IP hijacking is one of the largest Internet security threats.

answer

True

question

Which one of the following technologies is your new mobile phone payment device most likely to use?

answer

NFC

question

The fifth generation of cellular transmissions is expected to provide artificial intelligence capabilities on wearable devices.

answer

True

question

Which network type connects each computer and device on a central device?

answer

A Star Network

question

What is the maximum transfer transmission rate for Bluetooth?

answer

24 Mbps

question

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

answer

325

question

Bus networks are unpopular on LANs because they are expensive and difficult to install.

answer

False

question

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

answer

Networks

question

What kind of communications device sends and receives data and information to and from a digital line, such as ISDN and cable?

answer

A Modem

question

You are purchasing a new mobile phone, and are learning about categories of cellular transmissions. You ask the sales person what the 'G' stands for in the categories 1G, 2G, 3G, and 4G. What does he reply?

answer

Generation

question

In a networked environment, no authorized computer user can access data and information stored on other computers on the network.

answer

False

question

In reference to computer communications, what does the term noise mean?

answer

Electrical Disturbances

question

With FTTP service, an optical terminal at your location receives the signals and transfers them to a router connected to a computer.

answer

True

question

What is a receiving device?

answer

A device that accepts the transmission of data, instructions, or information

question

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

answer

More than 200

question

With TCP/ IP, each packet contains data as well as the recipient (destination), origin (sender), and the sequence information used to reassemble the data at the destination.

answer

True

question

ISDN is more widely used now than in the past.

answer

False

question

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

answer

NIC

question

Which is the best description of a coaxial cable?

answer

A single copper wire surrounded by at least three layers

question

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?

answer

Host

question

Which of the following is not true of peer-to-peer networks?

answer

The network operating system is stored on a network server.

question

Although it can connect any number of computers, a client/ server network typically provides an efficient means to connect 10 or fewer computers.

answer

False

question

A MAN usually is managed by a consortium of users or by a single network provider that sells the service to the users.

answer

True

question

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?

answer

Only that node is affected

question

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

answer

Fixed Wireless

question

ISDN and DSL are more widely used than cable.

answer

False

question

Which of the following offers an alternative to infrared communications with high bandwidth transmissions?

answer

Bluetooth

question

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

answer

It is slower and more susceptible to noise.

question

Fiber-optic cables have the capability of carrying significantly more signals than wire cables.

answer

True

question

Which group developed the WiMAX standard?

answer

IEEE

question

You run a large network in which it is important to keep a duplicate of the central devices in case the primary one fails. What category of network topology does this network use?

answer

Star Network

question

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

answer

NIC

question

Which of the following technologies is your new wireless headset most likely to use?

answer

Bluetooth

question

As shown in the accompanying figure, which of the following kinds of networks is a network topology in which a cable forms a closed loop, with all computers and devices arranged along it?

answer

Ring

question

On a token ring network, a packet is a special series of bits that function like a ticket, allowing the device with the packet to transmit data over the network.

answer

False

question

Some smartphones can function as a wireless modem, called a mobile hot spot, when tethered to a personal computer.

answer

True

question

Wireless transmission media are used when it is impossible to install cables.

answer

True

question

Which of the following is not an application of communications satellite technology?

answer

Fixed Wireless

question

On 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?

answer

Dedicated

question

As data moves through a network from one program to another, it can use at most one kind of network standard.

answer

False

question

What is a definition of a protocol, as it applies to networks?

answer

A standard that outlines characteristics of how network devices communicate

question

Depending on the transmission media used, Ethernet networks have data transfer rates that range from 10 Gbps for small office/ home users to 1000 Gbps for enterprise users.

answer

False

question

When users log off a P2P network like the one in the accompanying figure, other users still can access their hard disks.

answer

False

question

Which of the following defines guidelines that specify the way computers access the medium to which they are attached, the type(s) of medium used, the speeds used on different types of networks, and the type(s) of physical cable and/ or wireless technology used?

answer

Network Standard

question

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

answer

Broadcast Radio

question

ADSL is ideal for internet access because most users upload more information than they download from the internet.

answer

False

question

Only small networks use routers.

answer

False

question

Most of today's computer networks use coaxial cable.

answer

False

question

The main difference among network classifications is whether they are wired or wireless.

answer

False

question

In a fiber-optic cable, each strand, called an optical fiber, is as thin as a human hair.

answer

True

question

What is an NIC?

answer

A communications device that enables a computer or device that does not have a built-in networking capability to access a network

question

What type of media transmits multiple signals simultaneously?

answer

Broadband

question

Which of the following is not true of communications software?

answer

Email, FTP, and VoIP are examples of system software for communications.

question

Which of the following has the fastest maximum transfer rate?

answer

UWB

question

Which of the following is not an example of a dedicated line?

answer

Dial-up

question

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

answer

Peer-to-peer

question

Network servers and web servers are examples of what type of server?

answer

Dedicated Servers

question

With ISDN, the same telephone line that could carry only one computer signal now can carry three or more signals at once through the same line, using a technique called multiplexing.

answer

True

question

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?

answer

Wireless Access Point

question

For radio transmissions, a transmitter is needed to send the broadcast radio signal and a receiver to accept it.

answer

True

question

What term describes the process in which two or more computers or devices transfer data, instructions, and information?

answer

Digital Communication

question

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

answer

2.56 Tbps

question

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

answer

Home Network

question

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

answer

Bluetooth

question

An extranet essentially is a small version of the internet that exists within an organization.

answer

False

question

You are a technology expert and you have been asked to predict which technology will become the internet standard for data transmission, replacing the T3 lines. Which of the following are you most likely to predict?

answer

ATM

question

One advantage of bluetooth is its high bandwidth.

answer

False

question

Which of the following statements best describes a BAN?

answer

A set of wearable or implanted body sensors that turns the body into a human router

question

A star network consists of a single central cable, to which all computers and other devices connect.

answer

False

question

What is a sending device?

answer

A device that initiates an instruction to transmit data, instructions, or information

question

What is the approximate distance most bluetooth devices can be from each other to communicate, without using additional equipment?

answer

33 feet

question

Who invented Ethernet?

answer

Robert Metcalfe

question

Contactless payment is a popular use of UWB technology.

answer

False

question

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

answer

Router

question

What is the purpose of hubs and switches?

answer

To provide a central point for cables in a network

question

On what kind of network do one or more computers act as a server and the other computers on the network request services from the server?

answer

Client/ server

question

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

answer

NFC

question

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 modern or DSL modem?

answer

Router

question

You want to use the UMB cellular transmission standard on your new mobile phone. Which standard will you use?

answer

4G

question

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?

answer

Network Architecture

MIS 2223 Ch. 10 Quiz

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