Final Exam Practice – Flashcards
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You are setting up a broadband connection for your home computer. A UTP cable is used to connect to the cable modem. What does the other end of the UTP cable connect to?
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Network interface card (NIC)
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Which software enables multiple connections to the Internet to go through one protected PC?
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Proxy server
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What kind of cable does broadband cable use to provide high-speed Internet access?
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Regular cable TV cables
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How many lines does the Basic Rate Interface (BRI) setup use?
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One
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What is the unit of measurement, also known as one cycle per second, that expresses the speed of phone lines?
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Baud
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What component in the computer converts individual serial bits of data into 8-bit parallel data that the PC can understand?
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Universal Asynchronous Receiver/Transmitter (UART)
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What port number is used by HTTPS?
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443
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Tier 1 and Tier2 providers lease their Internet connections to ____.
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Internet service providers (ISPs)
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What is the amount of time a packet takes to get to its destination called?
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Latency
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What should you check if your Web browser refuses to run a Java program?
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Security settings
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Dial-up links to the Internet use PPP. What is PPP?
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A protocol
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What are encrypted tunnels that create private networks through the Internet called?
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VPNs
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What port number is used for sending e-mail?
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25
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The Internet was designed to survive failures. What model does it use to achieve this?
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Decentralized
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What allows you to give anyone control of your desktop through an e-mail invitation?
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Remote Assistance
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What allows you to make voice calls over a computer network?
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VoIP
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What port numbers are used by FTP?
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20 and 21
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The Integrated Services Digital Network (ISDN) sends telephone transmissions across what type of lines?
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Digital
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What special protocol do news servers use?
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NNTP
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What service provides the structure for the World Wide Web?
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Hypertext Transfer Protocol (HTTP)
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The Internet consists of millions of computers all over the world interwoven together through long-distance, high-speed, fiber-optic networks. What are these called?
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Backbones
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Almost all ____ modems connect to a PCI or PCI Express expansion bus slot inside the PC.
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Internal
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Broadband cable typically offers speeds of 1-10 Mbps for upload. What is the typical speed for download?
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6-50+ Mbps
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What device converts analog signals to digital and vice versa, enabling computers to talk to each other via standard commercial telephone lines?
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Modem
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Which of the following transfers data via analog signals?
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Telephone wire
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What is the router to which you connect at the ISP called?
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Default gateway
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What tool enables multiple computers to use the Internet connection provided by one computer on the network?
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Internet Connection Sharing (ICS)
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What provides the basic software structure for communication on the Internet?
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TCP/IP
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What effectively hides all of your computers and makes them appear invisible to other computers on the Internet?
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NAT
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What type of signal does a computer use to communicate?
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Digital
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Which servers provide Web sites and Web pages that users can access?
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Web
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What is the most widely used standard for receiving e-mail?
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POP3
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You want to allow ActiveX controls to run when you visit a Web site. What would you configure?
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Security settings of your web browser
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At what frequency range do the 802.11b- and 802.11g-based wireless technologies operate?
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2.4 GHz
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What is the speed at which the 802.11g wireless technology transfers data?
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54 Mbps
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Which of the following provides a security improvement in WPA addresses over WEP?
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EAP
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What allows you to specifically allow or deny access to a WAP?
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MAC filtering
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Where should you look for WAP firmware updates?
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Manufacturer's Web site
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What is the maximum capacity for data transfer between infrared devices?
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4 Mbps
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At what frequency range does the 802.11a-based wireless technology operate?
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5 GHz
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What type of wireless network can quickly be used to share files, folders, and printers without a WAP?
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Ad hoc
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What wireless technology is often used to connect headsets to smartphones?
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Bluetooth
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Which of the following wireless networking standards supports data throughput of up to 11 Mbps?
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802.11b
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What WPA/WPA2 encryption version uses a RADIUS server for secure authentication?
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WPA/WPA2-Enterprise
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What device centrally connects wireless network nodes in the same way that a hub or switch connects wired Ethernet PCs?
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Wireless access point
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What is the maximum distance of a Class 3 Bluetooth device?
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1 meter
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What is the theoretical maximum range of the 802.11a wireless networking standard?
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150 feet
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What is a very small wireless network preconfigured to do a specific job called?
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PAN
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What 802.11n feature increases its range and speed?
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MIMO
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Most WAPs support filtering in which data packets that do not contain the appropriate address are rejected. What kind of address is filtered?
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MAC
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What is the central connection point for a wireless network working in infrastructure mode?
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WAP
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Today, which of the following is not considered a good security practice when setting up a WAP?
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Enable WEP encryption.
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Assuming the wireless NIC is able to pass packets, what would you check next to resolve connectivity issues?
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Wireless configuration utility
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Which of the following represents a security improvement in WPA2 over WEP and WPA?
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AES
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What is another name for the Service Set Identifier parameter?
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Network name
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What method do wireless networks use to determine if other nodes are currently broadcasting?
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CSMA/CA
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What WAP settings should be adjusted in an environment with overlapping Wi-Fi signals?
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Channel and frequency
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What is the gain from a typical WAP?
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2 dB
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What should you check first when troubleshooting wireless connectivity issues?
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Wireless NIC link light
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What is the standard straight-wire omnidirectional wireless antenna called?
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Dipole
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How many bits does WEP encryption use to scramble data packets?
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40
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What enables you to connect to the Internet through a PDA, cell phone, or smartphone?
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Cellular wireless network
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What frequencies does 802.11n use?
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2.4 and 5 GHz
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Which of the following provides data speeds up to 1 Gbps?
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CAT 5e
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What do most fiber Ethernet networks use?
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62.5/125 multimode cable
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What are the IP addresses 169.254.0.1 to 169.254.255.254 used for?
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APIPA link-local addresses
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What central connection box is used in Ethernet star bus networks?
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Switch
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What are the two TIA/EIA standards for connecting RJ-45 connectors to the UTP cable?
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568A and 568B
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What is the default subnet mask for Class C addresses?
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255.255.255.0
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What type of topologies are star ring and star bus considered?
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Hybrid
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What kind of cable is most commonly used in 10/100/1000BaseT Ethernet star bus topology networks?
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UTP
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What box would you check in the Windows Vista Map Network Drive dialog box to reconnect a mapped network folder at logon?
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Reconnect at logon
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Of the following, which standard uses UTP cabling?
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1000BaseT
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What should you enter at a command prompt to see all of your TCP/IP settings?
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IPCONFIG /ALL
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What is the standard connector used for UTP Ethernet installations?
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RJ-45
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Which operating systems install both IPv4 and IPv6 by default?
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Windows Vista and Windows 7
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What connector is used to connect 10Base5 to a PC's network card?
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15-pin DB
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Which type of cable is shielded to protect from EMI?
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STP
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How many host nodes are supported on a single Class C network?
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254
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What type of cable can be used to connect two systems together without using a hub or switch?
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Crossover
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What is the default subnet mask for Class A addresses?
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255.0.0.0
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How many bits make up a complete MAC address?
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48
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What command would you use to map a share to a drive letter on a computer?
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NET USE
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At what layer of the OSI model does the IP protocol handle IP addressing?
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Network
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What identifies a PC on a network?
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IP address
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Which device is used to perform a loopback test on a NIC?
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Loopback plug
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Which of the following utilities shows the route that a packet takes to get to its destination?
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TRACERT
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Which of the following utilities enables a machine to check whether or not it can communicate with another machine?
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Ping
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What is used to map IP addresses to corresponding domain names?
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DNS
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What is the full UNC path for a machine named SERVER2 sharing its C: drive as HOMEBASE?
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SERVER2HOMEBASE
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After entering IPCONFIG at a command prompt, you notice you are using an IP address in the 169.254.0.1 to 169.254.255.254 address range. What is most likely the reason you were assigned one of these addresses?
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The DHCP server is down.
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Which is not a fiber connector?
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BNC-T
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Which Ethernet technology supports speeds up to 1 Gbps?
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1000BaseT
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The dye-sublimation printing technique is an example of what method of color printing?
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CMYK
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What Control Panel applet is used to manage printers and faxes in Windows XP?
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Printers and Hardware
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When a thermal printhead passes over the film ribbon, what melts onto the paper?
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Wax
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A laser printer creates an image of dots and holds it in memory before printing it. What is this image of dots called?
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Raster
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How are dots put onto the surface of paper from a direct thermal printer?
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Burned
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You are printing from a dot-matrix printer and notice the characters look chopped off at the top. What should you try adjusting?
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Printhead
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In laser printers, what component applies a positive charge to the paper, drawing the negatively charged toner particles to the paper?
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Transfer corona
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What causes dark ghosting on printed pages?
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A damaged drum
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What is heated by tiny resistors or electroconductive plates at the end of each tube in an inkjet printer?
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Ink
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During the laser printer process, after the erase lamp exposes the entire surface of the photosensitive drum to light, what happens to the photosensitive coating?
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It becomes conductive.
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What's the standard that defines backward-compatible, high-speed, bidirectional parallel ports?
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IEEE 1284
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Assuming a printer is in good working order and online, what should check next if nothing prints?
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Print spooler
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How is laser printer resolution measured?
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Dots per inch
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What does the primary corona wire charge?
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Drum
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In a laser printer, what must be done to the drum to make it receptive to new images?
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Charged
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Toner particles are composed mostly of ____, allowing them to be melted to the page.
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plastic
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What are 9-pin dot-matrix printers generically called?
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Draft
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What kind of printing usually results from an empty toner cartridge?
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Blank
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What charges the paper in a laser printer?
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Transfer corona
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What kind of printer creates an image on paper by physically striking an ink ribbon against the paper's surface?
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Impact
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A standard parallel cable used for older printers has a DB-25 connector on one end. What type of connector is on the other end?
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Centronics
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Which of the following printers transfer data to the printer one character or one line at a time?
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Impact
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Why do laser printers usually use a laser as the light source?
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Because of the precision
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What kind of printer is used with multipart forms such as with point-of-sale machines?
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Dot-matrix
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The toner in a laser printer is a fine powder. This powder is made up of plastic particles bonded to what other types of particles?
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Iron
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What type of printer works by ejecting ink through tiny tubes?
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Inkjet
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What needs to be vacuumed or replaced periodically in a laser printer?
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Ozone filter
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In a laser printer, what are the pressure roller and heated roller used for?
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To fuse the toner to the paper
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What kind of printer uses a grid of tiny pins, also known as printwires, to strike an inked printer ribbon and produce images on paper?
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Dot-matrix
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In a laser printer, what is used to write a positive image on the surface of the drum?
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Laser
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What kind of chip is used by a laser printer to translate the raster image sent to the printer into commands for the laser?
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RIP
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How many separate power supplies do laser printers typically have?
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At least two
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What is the fuser assembly in a laser printer almost always separate from?
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Toner cartridge
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Which of the following printers use heat or a mechanical method to move ink onto paper?
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Inkjet
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What should be added to a laser printer to resolve a memory overflow problem?
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RAM
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What kind of printer relies on a photoconductive process?
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Laser
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What should you do if your dot-matrix printer output is covered with dots and small smudges?
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Clean the platen.
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At the beginning of the laser printing process, what is cleaned?
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Photosensitive drum
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The term sublimation means to cause something to change from a solid into a(n) ____ form and then back into a solid.
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vapor
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What kind of printers tend to have problems with ink drying out inside the nozzles when the printer is not used for a period?
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Inkjet
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How much data can the highest capacity Blu-ray Disc store?
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50 GB
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An 8x4x32x CD-RW drive reads at a speed of ____.
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32x
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What is the storage capacity of a single-layer Blu-ray Disc?
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25 GB
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If the floppy drive is installed on the middle connector, which drive letter is it assigned?
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B:
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What is the storage capacity of a DVD-18 DVD-ROM?
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15.90 GB
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Which of the following is a group of compression standards for both audio and video?
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Moving Picture Experts Group (MPEG)
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Be sure to orient the colored stripe on the side of the floppy cable to ____ on the motherboard floppy controller.
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pin 1
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Which of the following is not a valid standard for recordable DVD?
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DVD-RAM
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What is the device that is used to read a floppy disk?
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Floppy drive
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What is the speed of High-Speed USB 2.0?
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480 Mbps
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What is the storage capacity of the present day 3½-inch floppy disk?
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1.44 MB
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DVD-ROM is the DVD-equivalent of the standard ____ data format.
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CD-ROM
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Conventionally, if there is only one floppy drive, which drive letter should it be assigned?
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A:
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What can be used to read different USB cards?
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Card reader
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Which of the following is a complete copy of a CD that can be burned to another CD to make a duplicate?
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ISO file
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What kind of memory do USB drives use?
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Flash
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What will happen if the floppy drive cable is installed backward when installing a floppy drive?
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The floppy drive will not work.
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While booting, most PCs will first look for an operating system in the ____ drive.
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A:
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In Windows 2000, a user must edit the ____ to turn off the Autoplay option.
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Registry
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By default, which Windows version allows you to burn music and data directly to disc?
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Windows Vista
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What is USB flash memory typically known as?
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Thumb drives
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What are the two Blu-ray Disc writable formats?
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BD-R and BD-RE
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What is the DVD Region Code for the U.S.A. and Canada?
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Region 1
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CD-ROM drives use a ____ and mirrors to read the data off a CD-ROM.
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laser
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All modern CD-R drives allow you to burn additional data onto a CD-R disc until the disc is full. What are these called?
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Multisession drives
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CD-ROMs store data using ____ burned into a glass master CD-ROM with a powerful laser.
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microscopic pits
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ATAPI CD-ROMs have regular ____ PATA (IDE) connectors and master/slave jumpers.
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40-pin
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You may need to change the ____ in CMOS to install a new OS from the installation media.
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Boot order
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Which of the following would prove more damaging to a CD-RW?
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Scratching the top of a disc
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The inability of the source device to keep up with the burner is known as _____.
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buffer underrun
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Which is not a valid Secure Digital card type or form?
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SDLC
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The key preventive maintenance performed on floppy drives is ____.
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cleaning
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Sally is a member of multiple groups. A file has been granted different permissions to the different groups. What is Sally's effective permission?
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Combined permissions of all groups
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To make sure antivirus programs are as useful as possible, what should be updated regularly?
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Signatures
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What is it called when a hacker goes through the garbage looking for information?
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Dumpster diving
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What type of program runs in the background on your PC, sending information about your browsing habits to the company that installed it on your system?
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Spyware
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Which authentication method sends passwords in clear text?
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PAP
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To lock down security settings on a single computer in a workgroup, what would you use?
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Local Security Settings
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Together, what are viruses, Trojans, and worms called?
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Malware
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What is a piece of malicious software that gets passed from computer to computer by attaching itself to a program?
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Virus
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What could a computer use to determine a user's identity with the most authority?
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Biometric device
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A user has a credit card-sized card used to prove her identity with a PIN. What is this card called?
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Smart card
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What is a software program that looks like one thing (such as a utility or a game) but is actually doing something else (such as modifying CMOS settings)?
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Trojan
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What is it called when you move data from one PC to a newer PC?
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Migration
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What type of program isn't destructive by itself but leaches bandwidth in networks?
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Grayware
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What can be used to create entries in the Security log whenever a user logs on?
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Success logging
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Which of the following is not considered grayware?
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Phishing
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How does a computer determine who can or should access it?
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Authentication
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What is a complete program that travels from machine to machine through computer networks and has the capability to cause malicious problems?
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Worm
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What is the act of trying to get people to give their user names, passwords, or other security information by pretending to be someone else electronically called?
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Phishing
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What word describes the process of cleaning up after a virus infection?
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Remediation
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What type of virus attempts to change its signature to prevent detection by antivirus programs?
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Polymorph
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To lock down security settings on a single computer in a domain, what would you use?
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Group Policy
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What is Microsoft's encryption method of choice for providing transparent encryption between the server and the client?
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IPSec
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What is the process of using or manipulating people inside the networking environment to gain access to that network from the outside?
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Social engineering
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What is it called when a user accesses resources in an unauthorized way?
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Unauthorized access
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Physical security, authentication, the file system, users and groups, and security policies combine to make what?
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Access control
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Antivirus programs can passively monitor your computer's activity. In this mode, what are they called?
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Virus shields
