ITN 101 exam 1 nvcc fully solved &updated

Which of the following is a basic function a computer performs? (Choose all that - answer-Processing Input Output The executes instructions provided by computer programs. - answer-CPU When a CPU has two or more processors, each one is referred to as a(n) - answer-b. Core Which of the following is considered long-term storage? (Choose all that apply.) - answer-USB or flash drive Hard drive Which motherboard component controls data transfers between memory, expansion slots, I/O devices, and the CPU? - answer-Chipset You want to purchase a high-performance graphics card for your computer. Which type of connector should it have? - answer-d. PCI-Express 7. The time it takes for read/write heads to move to the correct spot on the platter is the - answer-Seek time 8 Which of the following is a task usually performed by the BIOS? (Choose all that apply.) - answer-Perform a POST. Begin the boot procedure. 9. Place the following steps of the boot procedure in order. - answer-1. Power is applied. 2. CPU starts. 3. The Post is executed 4.Boot devices are searched. 5. The OS is loaded into RAM 6. OS services are started. You have just installed a new NIC in your PC to replace the old one that had started malfunctioning. What additional software must be installed to allow the OS to communicate with the new NIC? - answer-b. Device driver Which of the following requests information stored on another computer? - answer-b. Network client Choose the correct order for the process of a user attempting to access network resources: - answer-2, 3, 1, 4 TCP/IP is an example of which of the following? - answer-Network protocol In network communication, the______address is used to deliver a frame the correct computer on the network. (Choose all that apply.) - answer-MAC Physical A(n) ___message is used to determine whether a computer is listening on the network. - answer-Ping ТСР/IP uses _____to look up a computer's IP address, given its name. - answer-DNS The unit of information containing MAC addresses and an error-checking code that's processed by the network interface layer is called a - answer-Frame Data is processed from the time an application creates it to the time it reaches the network medium. This process includes adding information such as addresses and is called which of the following? - answer-Encapsulation You're the network administrator for a company that has just expanded from one floor to two floors of a large building, and the number of workstations you need has doubled from 50 to 100. You're concerned that network performance will suffer if you add computers to the existing LAN. In addition, new users will be working in a separate business unit, and there are reasons to logically separate the two groups of computers. What type of network should you configure? - answer-Internetwork Which of the following best describes a client? - answer-A computer's primary role in the network is to run user applications and access network resources, You work for a small company with four users who need to share information on their computers. The budget is tight, so the network must be as inexpensive as possible. What type of network should you install? - answer-Peer-to-peer network Which of the following characteristics is associated with a peer-to-peer network? (Choose all that apply.) - answer-Decentralized data storage. Inexpensive. User-managed resources A device interconnects five computers and a printer in a single office so that users can share the printer. This configuration is an example of which of the following? - answer-LAN A company has just made an agreement with another organization to share their two networks' resources by using TCP/IP protocols. What best describes this arrangement? - answer-Extranet You have installed Windows Server 2012 on a new server and want to centralize user logons and security policies. What type of software should you install and configure on this server? - answer-Directory services Peer to peer networks arent suitable in which of the following situations - answer-Tight security is required Which of the following is a limitation of garly networks that used a daisy-chain method of connecting computers? (Choose all that apply) - answer-Total number of computers that could be connected. Cable length Which of the following is true of a repeater? - answer-Receives bit signals and strengthens them Which of the following is true of a hub? (Choose all that apply.) - answer-Transmits regenerated signals to all connected ports. Usually has four or more ports Which of the following is the unit of measurement by which a hub's bandwidth is usually specified? - answer-Bits per second Which of the following describes how devices connected to a hub use the speed at which the hub can transmit data? - answer-Bandwidth sharing Which of the following is a likely indicator light on a hub? (Choose all that apply.) - answer-Link status. Connection speed. Activity Which of the following describes how devices connected to a switch use the speed at which the switch can transmit data? - answer-Dedicated bandwidth What does a switch use to create its switching table? - answer-Source MAC addresses What purpose does the timestamp serve in a switching table? - answer-Tells the switch when to delete an entry What feature of a switch allows devices to effectively communicate at 200 Mbps on a 100 Mbps switch? - answer-Full-duplex mode To which device is a wireless access point most similar in how it operates? - answer-Hub What's the purpose of an RTS signal in wireless networking? - answer-It allows a client to notify the AP that it's ready to send data. Which of the following is a common operational speed of a wireless network? - answer-11 Mbps Which of the following is a task performed by a NIC and its driver? (Choose all that apply.) - answer-Provides a connection to the network medium. Receives packets from the network protocol and creates frames Which of the following best describes a MAC address? - answer-Two 24-bit numbers, in which one is the OUI Under which circumstances does a NIC allow inbound communications to pass through the interface? (Choose all that apply.) - answer-The destination MAC address matches the built-in MAC address. The destination MAC address is all binary 1s. How does a protocol analyzer capture all frames? - answer-It configures the NIC to operate in promiscuous mode. In Windows 10, which of the following displays information about currently installed NICS? - answer-Network Connections d. Which of the following is the purpose of an SSID? - answer-Identifies a wireless network Which of the following describe the function of routers? (Choose all that apply.) - answer-Connect LANS. Work with packets and IP addresses What information is found in a routing table? - answer-Network addresses and interfaces other in a single LAN. You have been detecting a high percentage of broadcast frames on this switches are connected to one another so that all 300 computers can communicate with each You currently have 15 switches with an average of 20 stations connected to each switch. The LAN. You think the number of broadcasts might be having an impact on network performance. What should you do? - answer-Reorganize the network into smaller groups and connect each group to a router. Review the routing table in Figure 2-25. Based on this figure, where does the router send a packet with the source network number 1.0 and the destination network number 3.0? - answer-WAN B If a router receives a packet with a destination network address unknown to the router, what does the router do? - answer-Discard the packet. Which of the following is true about routers? (Choose all that apply.) - answer-Use default routes for unknown network addresses. Forward unicasts Which of the following describes the arrangement of network cabling between devices? - answer-Physical topology Which of the following is an advantage of a star topology? (Choose all that apply.) - answer-Allows faster technologies than a bus does. Centralized monitoring of network traffic Which topology is likely to be deployed branch offices, and you want all traffic from the branch offices to go through the central office in a WAN where there's a central office and three network? - answer-РМP Which technology is likely to be implemented as a point-to-point physical topology? - answer-Wireless bridge Which of the following describes a hub-based Ethernet network? - answer-Logical bus You're configuring a WLAN in a long narrow hallway. The only place you can put the AP is at the far end of the room. Which type of antenna should you use? - answer-Unidirectional Which best describes a typical wireless LAN? - answer-Logical bus topology Which of the following is a characteristic of a switched logical topology? (Choose all that apply.) - answer-Creates dynamic connections. Uses a physical star topology Which of the following is a characteristic of unshielded twisted-pair cabling? (Choose all that apply.) - answer-Has a distance limitation of 100 meters. Susceptible to electrical interference Which of the following is a characteristic of fiber-optic cabling? (Choose all that apply.) - answer-Can be used in electrically noisy environments. Carries data over longer distances than UTP Which topology most likely uses coaxial cabling? - answer-Physical bus Which of the following is true of a MAC address? - answer-c. A destination address of 12 hexadecimal Fs is a broadcast. Which type of Wi-Fi signal interference is most likely to be caused by leaves on trees? - answer-Scattering Which of the following is a field of the most common Ethernet frame type? (Choose all that apply.) - answer-FCS. Destination MAC Address. Data Which access method uses a "listen before sending" strategy - answer-CSMA/CD Which of the following is true about full-duplex Ethernet? (Choose all that apply.) - answer-Collision detection is turned off. It's possible only with switches. Which of the following is defined by the extent to which signals in an Ethernet bus topology network are propagated? - answer-Collision domain Which of the following is considered a property of Ethernet? (Choose all that apply.) - answer-Scalable. Best-effort delivery system Which of the following is true of IEEE 802.3an? - answer-Operates only in full-duplex mode Which of the following is a feature of 100BaseFX? (Choose all that apply.) - answer-Often used as backbone cabling. Uses two strands of fiber Which Wi-Fi standard can provide the highest bandwidth? - answer-802.11ac Which of the following is true about infrastructure mode in wireless networks? (Choose al that apply.) - answer-Uses a central device. Most like a logical bus and physical star How many channels can be used on an 802.11b network in North America? - answer-11 Which access method does Wi-Fi use? - answer-CSMA/CA Which Wi-Fi standard uses beamforming to allow an AP to send data to multiple devices simultaneously? - answer-802.11ac Which of the following is a commen characteristic of a networking medium? (Choose all that apply.) - answer-Bandwidth rating. Interference susceptibility. Maximum segment length Which of the following types of fiber-optic connectors provides high density and requires only one connector for two cables? - answer-MT-RJ Which of the following conditions requires cables not to exceed a recommended maximum length? - answer-Attenuation Which of the following is the process for representing bit signals on the medium? - answer-Encoding What happens to signals as they travel the length of the medium? - answer-They attenuate. Which of the following is UTP susceptible to? (Choose all that apply.) - answer-ЕМI. Crosstalk The space between a false ceiling and the true ceiling where heating and cooling air circulates is called the - answer-Plenum What type of connector is used most commonly with TP network wiring? - answer-RJ-45 You have been hired to install a network al a Jarge government agency that wants to reduce the likelihood of electronic eavesdropping on its network. What type of cable is most resistant to eavesdropping? - answer-Fiber optic Which of the following is characteristic of unshielded twisted-pair cable? (Choose all that apply.) - answer-Has a distance limitation of 100 meters. Is susceptible to electrical interference Which of the following is a characteristic of fiber-optic cabling? (Choose all that apply.) - answer-Can be used in electrically noisy environments. Carries data over longer distances than UTP does. You're preparing to install a conventional Ethernet network in your new office building, but your boss tells you to be ready to handle a switchover to 1 Gbps Ethernet next year. What types of cable could you install? (Choose all that apply.) - answer-Fiber optic. Cat 6 When two cables run side by side, signals traveling down one wire might interfere with signals traveling on the other wire. What is this phenomenon called? - answer-Crosstalk What characteristic of twisted-pair cabling helps mitigate the effects of crosstalk? - answer-Differential signals Which of the following is a wiring standard for twisted-pair cable connections? (Choose all that apply.) - answer-TIA/EIA 568A. TIA/EIA 568B Which of the following is a component of a structured cabling system? (Choose that apply.) - answer-Patch cables. Horizontal wiring Where are you most likely to find backbone cabling? (Choose all that apply.) - answer-MDF. Between IDFS Which of the following is a tool needed to make a patch cable? (Choose all that apply.) - answer-Cable stripper. Crimping tool Which type of connection is most likely to require a crossover cable? - answer-PC to router Which UTP limitations can be solved by fiber-optic cable? (Choose all that apply.) - answer-Bandwidth. EMI susceptibility. Segment length How many strands of fiber-optic cable are needed for a network connection? - answer-2 Which statement is true about fiber-optic cables? - answer-SMF uses lasers and has a thinner core. When might you want to use a rollover cable? - answer-To configure a Cisco device Which of the following wireless technologies does a 802.11 wireless network using the 2.4 GHz frequency range use? - answer-Direct-sequence spread spectrum