question

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

answer

False

question

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

answer

True

question

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

answer

False

question

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

answer

False

question

A WLAN cannot communicate with a wired LAN.

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

False

question

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

answer

False

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

When users log off a P2P network, other users still can access their hard disks.

answer

False

question

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

answer

False

question

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

answer

False

question

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

answer

False

question

Data transmitted on a ring network travels from device to device around the entire ring, in both directions.

answer

False

question

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

answer

False

question

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

answer

False

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

Each token ring network has several tokens.

answer

False

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

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

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

answer

False

question

Hot spots offer mobile users the ability to connect to the Internet with their Wi-Fi enabled wireless computers and devices.

answer

True

question

One advantage of Bluetooth is its high bandwidth.

answer

False

question

Contactless payment is a popular use of UWB technology.

answer

False

question

Communications software usually is bundled with the operating system or communications devices.

answer

True

question

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

answer

True

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

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

answer

False

question

ISDN is more widely used now than in the past.

answer

False

question

Data, instructions, and information travel along transmission media in either analog or digital form, depending on the transmission media.

answer

True

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

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

answer

True

question

ISDN and DSL are more widely used than cable.

answer

False

question

A dial-up modem connected to a sending computer converts the computer's digital signals into analog signals.

answer

True

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

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

answer

True

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 device.

answer

True

question

Wireless access points have high-quality antennas for optimal signals.

answer

True

question

Only small networks use routers.

answer

False

question

IP hijacking is one of the largest Internet security threats.

answer

True

question

One of the more widely used transmission media for network cabling and landline phone systems is twisted-pair cable.

answer

True

question

Most of today's computer networks use coaxial cable.

answer

False

question

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

answer

True

question

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

answer

True

question

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

answer

True

question

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

answer

True

question

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

answer

True

question

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

answer

True

question

Transmission from a satellite to an earth-based station is called an uplink.

answer

False

question

A GPS receiver is a handheld, mountable, or embedded device that contains an antenna, a radio receiver, and a processor.

answer

True

Bus 230 Chapt 10 T/F

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