CPT -101 FINAL EXAM WITH ANSWERS Peer-to-Peer Network - A network arrangement where each computer is of equal status✔✔Client -Server Network - A network where several computers are connected to one or more servers ✔✔Node - What each device connected to a network is known as (i.e. computer or game console) ✔✔Peripheral Devices - Used to expand the computer's input, output, and storage capabilities. ✔✔Piggy -backing - using a network without the network owner's permission ✔✔NOS ( network operating system) - specialized piece of software client/server networks' central server program ✔✔Service Set Identifier (SSID) - A network name that wireless routers use to identify themselves. ✔✔Network Navigation Device - device on a network (i.e . router or switch) that moves data signals around the network ✔✔Network Components of a P2P Network - -Computer and/or tablets + the software running on the computers and tablets -Network interface card (inside each node) -Printer -Transmission media (w ired or wireless internet) connecting the nodes -the radio waves that connect them all ✔✔Default Password - password that automatically comes with a router, best to change as soon as possible ✔✔Security Protocols - WEP (wired equivalent Privacy), WPA (WiFi Protected access); WPA is stronger ✔✔Firmware upgrades - Firmware is read-only memory software on your router. As bugs and other viruses continue being developed, manufacturers of the router come up with patches. It is important to update your firmware so that you can keep your internet connection safe ✔✔Network Adapter - device that enables the node to communicate with the network using a common data language or protocol ✔✔Network Interface Card (NIC) - Expansion card that enables a computer to connect to ot her computers or a cable modem to facilitate a high -speed Interface, Internet connection ✔✔Broadband Modem - Broadband connection requires a modem, which connects your network to the internet. The type of modem you have depends on your own broadband service ✔✔Network - group of two or more nodes that are configured to share information and resources such as printers, files, and databases ✔✔Client -
Server Network Software - nodes do not communicate with each other but instead through a centralized server called the NOS that handles requests for information, internet access, and the use of peripheral nodes ✔✔P2P Network Software - nodes that support P2P networks (Windows, Linux, & OS X) where they all communicate with each other ✔✔Packets - data that is sent in bund les through a network; for computers to communicate, they must flow between the network and the nodes ✔✔Router - device that transfers packets of data between 2+ networks (i.e. in a home network, your router connects your home network to the Internet) ✔✔Switch - device that transmitts data on a network; makes decisions based on media access control of the data to where the data should be sent. Works as a traffic signal on a network ✔✔Home Area Network (HAN) - P2P network that is a specific type of LAN (HAN) th at is located in the home that shares an internet connection ✔✔ISP - Specialized providers that you must purchase internet from; can also provide other services (i.e. cable, home phone, etc.) ✔✔Broadband - High -speed internet connection (i.e. cable, satellit e, or digital subscriber line [DSL]) ✔✔Cellular Internet / Wireless ISP - ISP that provides service to wireless devices such as smartphones; connects to 3G/4G. ✔✔Cable Internet - Broadband service that transmits data over coaxial cables, the same cables as c able television; however cable TV is a separate service ✔✔DSL (digital subscriber line) - Copper wire phone line; type of connection that uses telephone lines to connect the Internet and allow both phone and data transmissions to share the same line ✔✔Fiber -Optic Service - Strands of optically pure glass/plastic that trasmits data at the speed of light; arranged in bundles such as optical cables✔✔Satellite Internet - Connects to the internet using a small satellite dish that's placed outside the home and conn ected to a computer with a coaxial cable (the same cables used in cable internet). The difference is the satellite sends the data to another satellite orbiting Earth, where they communicate with each other ✔✔Mobile Broadband - Connects to the Internet using the same cellular network that a cell phone uses to get 3G/4G ✔✔Twisted -pair Cable - Cables made of copper wires that are twisted around each other are surrounded by a plastic jacket (i.e. a traditional home wire) ✔✔Unsheilded twisted -pair (UTP) Cable - Most popular transmission media option for Ethernet networks; composed of four pairs of wires that are twisted around each other to reduce electrical interference ✔✔Types of UTP Cables - Cat 5E (slow): cheapest; designed for 100Mbps -wired Ethernet networks pre vious to gigabit Ethernet; basically outdated Cat 6 (medium): more than 1GB/s of throughput; designed to achieve data transfer rates that support a gigabit Ethernet network (best for home networks) Cat 6a (fast): ultra -fast Ethernet (as fast as 10Gbps); not necessary in a home network because it isn't needed ✔✔Decreased Throughput in Wireless Networks - Throughput varies depending on distance between the wireless nodes;signs include signals susceptible to magnetic/electrical interference, building material s (concrete and cinder -block)✔✔Wireless In -Flight Network - wireless, broadband network that provides coverage on flights ✔✔WiFi hotspot - Public places (i.e. Libraries, Hotels, Airports, food places, Coffee shops) that offer free WiFi ✔✔3G & 4G - Refer to t hird and fourth generations; 4G is the latest mobile communication standard with faster data transfer rates than 3G ✔✔4G LTE - early 4G system released in the market that support less than the required 1 Gbps rate; still faster than 3G ✔✔Digital Living Netwo rk Alliance (DNLA) - organization working to standardize different kinds of appliances and network devices used in homes (i.e. cars, appliances, homes) ✔✔Telephony - use of equipment to provide voice communications over a distance; gone from analog to digit al✔✔Cellular Network - set of connected cells where each cell is a geographic area centered on a base transceiver station (cell tower)✔✔Base Transceiver Station - Large communications tower with antennas, amplifiers, and receivers/transmitters ✔✔Mobile Swit ching Center - Central location that receives cell phone requests for service from a base station ✔✔Analog -to-Digital Converter Chip (ADC) - Chip that converts analog signals into digital signals in Digital Processing; also used in recording and vocals✔✔Digital Signal Processor - specialized chip that processes digital information and transmits signals very quickly in Digital Convergence ✔✔OS Read -Only Memory - where your
Server Network Software - nodes do not communicate with each other but instead through a centralized server called the NOS that handles requests for information, internet access, and the use of peripheral nodes ✔✔P2P Network Software - nodes that support P2P networks (Windows, Linux, & OS X) where they all communicate with each other ✔✔Packets - data that is sent in bund les through a network; for computers to communicate, they must flow between the network and the nodes ✔✔Router - device that transfers packets of data between 2+ networks (i.e. in a home network, your router connects your home network to the Internet) ✔✔Switch - device that transmitts data on a network; makes decisions based on media access control of the data to where the data should be sent. Works as a traffic signal on a network ✔✔Home Area Network (HAN) - P2P network that is a specific type of LAN (HAN) th at is located in the home that shares an internet connection ✔✔ISP - Specialized providers that you must purchase internet from; can also provide other services (i.e. cable, home phone, etc.) ✔✔Broadband - High -speed internet connection (i.e. cable, satellit e, or digital subscriber line [DSL]) ✔✔Cellular Internet / Wireless ISP - ISP that provides service to wireless devices such as smartphones; connects to 3G/4G. ✔✔Cable Internet - Broadband service that transmits data over coaxial cables, the same cables as c able television; however cable TV is a separate service ✔✔DSL (digital subscriber line) - Copper wire phone line; type of connection that uses telephone lines to connect the Internet and allow both phone and data transmissions to share the same line ✔✔Fiber -Optic Service - Strands of optically pure glass/plastic that trasmits data at the speed of light; arranged in bundles such as optical cables✔✔Satellite Internet - Connects to the internet using a small satellite dish that's placed outside the home and conn ected to a computer with a coaxial cable (the same cables used in cable internet). The difference is the satellite sends the data to another satellite orbiting Earth, where they communicate with each other ✔✔Mobile Broadband - Connects to the Internet using the same cellular network that a cell phone uses to get 3G/4G ✔✔Twisted -pair Cable - Cables made of copper wires that are twisted around each other are surrounded by a plastic jacket (i.e. a traditional home wire) ✔✔Unsheilded twisted -pair (UTP) Cable - Most popular transmission media option for Ethernet networks; composed of four pairs of wires that are twisted around each other to reduce electrical interference ✔✔Types of UTP Cables - Cat 5E (slow): cheapest; designed for 100Mbps -wired Ethernet networks pre vious to gigabit Ethernet; basically outdated Cat 6 (medium): more than 1GB/s of throughput; designed to achieve data transfer rates that support a gigabit Ethernet network (best for home networks) Cat 6a (fast): ultra -fast Ethernet (as fast as 10Gbps); not necessary in a home network because it isn't needed ✔✔Decreased Throughput in Wireless Networks - Throughput varies depending on distance between the wireless nodes;signs include signals susceptible to magnetic/electrical interference, building material s (concrete and cinder -block)✔✔Wireless In -Flight Network - wireless, broadband network that provides coverage on flights ✔✔WiFi hotspot - Public places (i.e. Libraries, Hotels, Airports, food places, Coffee shops) that offer free WiFi ✔✔3G & 4G - Refer to t hird and fourth generations; 4G is the latest mobile communication standard with faster data transfer rates than 3G ✔✔4G LTE - early 4G system released in the market that support less than the required 1 Gbps rate; still faster than 3G ✔✔Digital Living Netwo rk Alliance (DNLA) - organization working to standardize different kinds of appliances and network devices used in homes (i.e. cars, appliances, homes) ✔✔Telephony - use of equipment to provide voice communications over a distance; gone from analog to digit al✔✔Cellular Network - set of connected cells where each cell is a geographic area centered on a base transceiver station (cell tower)✔✔Base Transceiver Station - Large communications tower with antennas, amplifiers, and receivers/transmitters ✔✔Mobile Swit ching Center - Central location that receives cell phone requests for service from a base station ✔✔Analog -to-Digital Converter Chip (ADC) - Chip that converts analog signals into digital signals in Digital Processing; also used in recording and vocals✔✔Digital Signal Processor - specialized chip that processes digital information and transmits signals very quickly in Digital Convergence ✔✔OS Read -Only Memory - where your
