Bus 230 Chapt 10 T/F

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In a networked environment, no authorized computer user can access data and information stored on other computers on the network.
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False
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Users connected to a network have access to software on the network.
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True
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The main differentiation among network classifications is whether they are wired or wireless.
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False
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An extranet essentially is a small version of the Internet that exists within an organization.
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False
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A WLAN cannot communicate with a wired LAN.
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False
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A MAN usually is managed by a consortium of users or by a single network provider that sells the service to the users.
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False
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On a client/server network, the client sometimes is called a host computer.
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False
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Although it can connect any number of computers, a client/server network typically provides an efficient means to connect 10 or fewer computers.
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False
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When users log off a P2P network, other users still can access their hard disks.
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False
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A star network consists of a single central cable, to which all computers and other devices connect.
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False
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Bus networks are unpopular on LANs because they are expensive and difficult to install.
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False
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The star topology is primarily used for LANs but it is also used in WANs.
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False
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Data transmitted on a ring network travels from device to device around the entire ring, in both directions.
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False
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On a ring network, if the hub fails the entire network is inoperable until the hub is repaired.
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False
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As data move through a network from one program to another, it can use at most one kind of network standard.
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False
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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.
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False
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Each token ring network has several tokens.
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False
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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.
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False
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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.
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True
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Wi-Fi networks easily can be integrated with wired Ethernet networks.
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False
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Hot spots offer mobile users the ability to connect to the Internet with their Wi-Fi enabled wireless computers and devices.
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True
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One advantage of Bluetooth is its high bandwidth.
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False
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Contactless payment is a popular use of UWB technology.
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False
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Communications software usually is bundled with the operating system or communications devices.
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True
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Consumers can purchase blank NFC tags at a reasonable cost and easily program them to perform certain actions.
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True
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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.
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True
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ADSL is ideal for Internet access because most users upload more information than they download from the Internet.
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False
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ISDN is more widely used now than in the past.
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False
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Data, instructions, and information travel along transmission media in either analog or digital form, depending on the transmission media.
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True
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With FTTP service, an optical terminal at your location receives the signals and transfers them to a router connected to a computer.
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True
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Phone networks, the Internet, and other networks with large amounts of traffic use ATM.
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True
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ISDN and DSL are more widely used than cable.
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False
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A dial-up modem connected to a sending computer converts the computer's digital signals into analog signals.
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True
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A DSL modem converts digital signals to analog signals and vice versa so that data can travel along an analog phone line.
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False
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Some smartphones can function as a wireless modem, called a mobile hot spot, when tethered to a personal computer.
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True
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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.
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True
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Wireless access points have high-quality antennas for optimal signals.
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True
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Only small networks use routers.
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False
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IP hijacking is one of the largest Internet security threats.
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True
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One of the more widely used transmission media for network cabling and landline phone systems is twisted-pair cable.
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True
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Most of today's computer networks use coaxial cable.
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False
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In a fiber-optic cable, each strand, called an optical fiber, is as thin as a human hair.
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True
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Fiber-optic cables have the capability of carrying significantly more signals than wire cables.
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True
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Wireless transmission media are used when it is impossible to install cables.
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True
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Infrared (IR) is a wireless transmission medium that sends signals using infrared light waves.
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True
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For radio transmissions, a transmitter is needed to send the broadcast radio signal and a receiver to accept it.
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True
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The fifth generation of cellular transmissions is expected to provide artificial intelligence capabilities on wearable devices.
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True
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Transmission from a satellite to an earth-based station is called an uplink.
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False
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A GPS receiver is a handheld, mountable, or embedded device that contains an antenna, a radio receiver, and a processor.
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True
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