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CIS 110 Chapter 10

Communications and Networks

Digital communications describes a process in which two or more computers or devices transfer ________, _________ and instructions data, information
_____ is a transmission media on which data, instructions, or information travel. communications channel
A __________ is a LAN that uses no physical wires. WLAN
A network that covers a large geographic area, such as a city, country, or the world, using a variety of wired and wireless transmission media? WAN
PANs use _____________ , Wi-Fi or a special usb connecter to connect devices. bluetooth
The design of computers, device and media in a network is referred to as ____________ and could be peer-to-peer or client/server network architecture.
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
___________ servers perform a specific task and can be placed with other servers to perform multiple tasks. What are these kind of servers call? dedicated
Ring ___________ can span a larger distance than a bus network, but it is more difficult to install. topology
Network ____________ 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 the wireless standards
____________ is a network standard that specifies no central computer or device on the network should control when data can be transmitted? ethernet
______________________ invented the Ethernet Robert Metcalfe
A data transfer rate equivalent to one million bits per second is known as ___________ Mbps
____________ is a family of wi-fi standards 802.11
With additional equipment, the range of ______ devices can be extended up to 325 feet Bluetooth
____________ software can detect problems—such as why traffic is flowing slowly—on networks that use the TCP/IP protocol packet sniffer software
Sven Mattisson and Jaap Haartsen invented ___________ technologies. Bluetooth
_____________ defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology NFC
__________ internet connection share the nodes with hundreds of other users, has widespread availability cable
____________is a popular alternative to cable internet connection. DSL
_____ has the fastest transfer rates. FTTP
__________ is defined as being capable of transmitting data, instructions, and information between a sending device and a receiving device communications
__________ modems send and receive digital data over and information to and from a digital line? broadband
________________ 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? wireless access point
____________ is a communications device that connects multiple computers together to share a single broadband Internet connection such as through a cable modem or DSL modem, and transmits data to its correct destination on a network? router
A router can roughly support up to ___________ or more computers in a network. 200
A __________ enables a computer or device that does not have built-in networking capability to access a network, but is not necessary if you have one built-in. NIC, network interface card
a ___________ network connects multiple computers and devices together at your house. home
For best performance of a communications channel, ________ should be high and ___________ should be low bandwidth, latency
_____________ refers to the amount of data, instructions, and information that can travel over a communications channel bandwidth
the time it takes a signal to travel from one location to another on a network is referred to as ________ latency
___________ refers to is an electrical disturbance that can degrade communications noise
This 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
_____________ is a wireless transmission medium that distributes radio signals through the air over long distances, is slower and more susceptible to noise. broadcast radio
the maximum transfer transmission rate for Bluetooth is 24 _____ Mbps
____________ are radio waves that provide a high-speed signal transmission, is an earth-based reflective dish that contains the antenna, transceivers, and other equipment necessary for communications microwave
___________ wireless transmission involves sending signals from one microwave station to another. fixed wireless
A _________ device is used to initiate an instruction, transmit data, or information sending
A _________ device that accepts the transmission of data, instructions, or information receiving
__________ are used to define how data transmits across transmission media. standards
__________ involves transferring funds electronically. EFT, electronic fund transfer
________ are a third-party business that provides additional services, such as EDI, secure data and information transfer, storage. VAN
Your smartphone, digital camera, and printer are all part of a network in your workspace. This is referred to as a _________ personal area network (PAN)
__________ is a set of wearable or implanted body sensors that turns the body into a human router BAN
another term for servers that control access to the hardware, software, and other network resources host
___________servers include network servers and web servers. dedicated servers
In a peer-to-peer network, each computer has ___________ responsibilities and capabilities, are simple, inexpensive networks, that allow each computer to store files on its own device and to share them. Requires special operating system equal
___________ network is another name for a peer-to-peer network. filesharing
Networks that have a central device that controls data flows employs a ___________ network topology star/host
The term used to describe a device connected to a network that has an IP address? node
___________ standards indicate that no central computer or device should control when data is transmitted ethernet
Wireless headsets are likely to use __________ technology blueTooth
_________ is a technology that tracks inventory for small businesses UWB
The remote control likely uses ________ connective technologies. IrDA
A tollbooth is likely to use ______ connective technologies. RFID
Wi-Fi connections uses ___________ as the network standard TCP/IP
When using Wi-Fi in open or outdoor areas free from interference, computers or devices should be within ____ feet of each other to be able to communicate. 300
33 feet is the approximate distance most _______ devices can be from each other to communicate, without using additional equipment? bluetooth
privacy advocates worry that this technology can destroy a person's anonymity RFID
__________ contains dozens or hundreds of thin strands of glass or plastic that use light to transmit signals fiber optic
_____ has the fastest maximum transfer transmission rate? UWB
The "G" in 2G, 3 G and 4G refers to generation
You want to use the UMB cellular transmission standard on your new mobile phone. Which standard will you use 4G
In a networked environment, it is not possible to access data and information stored on another's computer in the network false
An __________ essentially is a small version of the Internet that exists within an organization intranet
A _____ usually is managed by a consortium of users or by a single network provider that sells the service to the users MAN
When you log off from a P2P network, it is still possible for other's to access the shared hard drive false
Star topologies are frequently used for WANs false
_____ technologies are used to transmit data from device to device in one-way directions. bus
In a ________ network, if the hub fails, the entire network is rendered inoperable until the hub is repaired star
many network ______ are used to help move data around the internet. standards
With ______ each packet contains data as well as the recipient (destination), origin (sender), and the sequence information used to reassemble the data at the destination. tcp/ip
_________ offer mobile users the ability to connect to the Internet with their Wi-Fi enabled wireless computers and devices. hot spots
Communications software usually is ________ with the operating system or communications devices. bundled
With _____, 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 isdn
ADSL is ideal for Internet access because most users _______ more information than they ______ from the Internet. download, upload
With ____ service, an optical terminal at your location receives the signals and transfers them to a router connected to a computer. FTTP
Wireless access points have high-quality _______ for optimal signals. antennas
One of the more widely used transmission media for network cabling and landline phone systems is _________ twisted-pair cable.
In a fiber-optic cable, each strand, called an optical ____, is as thin as a human hair. fiber
Fiber-optic cables have the capability of carrying significantly more signals than ________ . twisted-wire pair
___________ is a wireless transmission medium that sends signals using infrared light waves Infrared (IR)
one or more computers act as a server and the other computers on the network request services from the server? client/server
EFT stands for __________ electronic funds transfer
device that initiates an instruction to transmit data, instructions, or information sending device
another term for servers that control access to the hardware, software, and other network resources? host
defines how a network uses close-range radio signals to communicate between two devices or objects equipped with this technology? NFC
_________ is a communications device that connects multiple computers together and transmits data to its correct destination on a network router
__________ is a simple, inexpensive network that typically connects fewer than 10 computers. Peer-to-peer,p2p
is a modem that sends and receives digital data over and information to and from a digital line? broadband
Created by: galvanl