CompTIA Network+ Practice Tests. Craig Zacker. Читать онлайн. Newlib. NEWLIB.NET

Автор: Craig Zacker
Издательство: John Wiley & Sons Limited
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Жанр произведения: Зарубежная компьютерная литература
Год издания: 0
isbn: 9781119807315
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      16 A Simple Network Management Protocol (SNMP) console can inform administrators when a managed device requires attention. For this to occur, the agent in the device first has to send a message to the console. What is the term used for a message sent by an SNMP agent to the central console?PingAlertNotificationTrap

      17 Which of the following metrics would you typically not find displayed by an interface monitor?Error rateBandwidth utilizationPacket dropsRollbacks

      18 Which of the following are reasons contributing to the number of packet drops displayed by an interface monitor? (Choose all that apply.)ResetsDiscardsErrorsOverflows

      19 Which of the following is not a statistic that you would typically find in a server performance baseline?CPU utilizationDisk transfer rateNetwork transmissions speedOS update historyMemory utilization

      20 Log management typically consists of which of the following tasks? (Choose all that apply.)RollbackUtilizationSecurityCycling

      21 Which of the following Security Information and Event Management (SIEM) processes performs searches for specific criteria, during specific time frames, in logs located on different computers?Data aggregationForensic analysisCorrelationRetention

      22 Which of the following terms best describes the Security Information and Event Management (SIEM) process of consolidating log information from multiple sources?Data aggregationForensic analysisCorrelationRetention

      23 Which of the following terms best describes a connectivity problem on wired networks that is caused by individual packets that are delayed due to network congestion, different routing, or queuing problems?LatencyAttenuationJitterBottleneck

      24 Which of the following network interface occurrences are considered to be malfunctions on a full-duplex Ethernet network? (Choose all that apply.)RuntsGiantsCollisionsLate collisions

      25 Which of the following network applications are most likely to be obviously affected by the wired network connectivity problem known as jitter? (Choose all that apply.)EmailVoIPStreaming videoInstant messaging

      26 Which of the following, originally created for the UNIX sendmail program, is now a standard for message logging that enables tools that generate, store, and analyze log information to work together?SyslogNetmonNetstatTop

      27 Which of the following log types is the first place that a Windows administrator should look for information about a server's activities?System logSetup logApplication logSecurity log

      28 When a service fails to start on a Windows server, an entry is typically created in which of the following event logs?ApplicationSecuritySetupSystem

      29 Which of the following Windows applications would you most likely use to create a baseline of system or network performance?Performance MonitorEvent ViewerSyslogNetwork Monitor

      30 At what humidity level do electronic components become vulnerable to damage from electrostatic shock?Below 30 percentBelow 50 percentAbove 70 percentAbove 90 percent

      31 Which of the following event logs on a Windows server can record information about both successful and failed access attempts?SystemApplicationSecuritySetup

      32 Which of the following is the database used by the Simple Network Management Protocol (SNMP) to store information gathered from agents distributed about the network?TrapSyslogMIBSIEM

      33 Which of the following is the most likely cause of runt and giant frames on an Ethernet network interface?A network adapter malfunctionHalf-duplex communicationExcessive cable lengthElectromagnetic interference

      34 Which of the following is the most likely cause of Cyclic Redundancy Check (CRC) errors on an Ethernet network interface?Half-duplex communicationA network adapter malfunctionElectromagnetic interferenceExcessive cable length

      35 Which of the following utilities can display the number of packets sent and received for a specific network interface on a Unix, Linux, MacOS or Windows computer?TopIfconfigNetstatNbtstat

      36 Which of the following is a feature included in some routers that collects and analyzes network traffic data sent or received through a network interface?NetmonNetflowNetstatNbtstat

      37 Which of the following is not a type of error typically found in network interface statistics?RuntEncapsulationGiantCRCJumbo

      38 Which of the following is not an SNMP component?MIBsTrapsOIDsCRCs

      39 Ralph is designing the HVAC implementation for his company's new central datacenter, which will house all of the equipment for the corporate headquarters and the company's manufacturing facility. The datacenter must adhere to the Tier III standard defined by the Uptime Institute, which calls for at least 99.9 percent uptime. As part of the environmental infrastructure for the datacenter, Ralph plans to install sensors to monitor environmental factors that can affect computer equipment and generate alerts when conditions exceed accepted thresholds. Which of the following environmental factors is not one of those that Ralph should arrange to monitor to protect the equipment specific to a datacenter?FloodHumidityRadonStatic electricityTemperature

      40 Routers using link states and Dijkstra's algorithm to calculate the lowest cost route to a specific destination can conceivably be running which of the following interior gateway routing protocols? (Choose all that apply.)OSPFRIPEIGRPIS-ISBGP

      41 Which of the following is the term usually applied to a representation of network devices, automatically compiled, and containing information such as IP addresses and connection speeds?Network mapNetwork diagramCable diagramManagement information base

      42 Which of the following types of network documentation is often overlaid on an architectural drawing or blueprint?Network mapNetwork diagramCable diagramManagement information base

      43 Which of the following is not one of the typical heights for devices mounted in IT equipment racks?1 unit2 units3 units4 units

      44 The cable plant for your company network was installed several years ago by an outside contractor. Now, some of the paper labels have fallen off your patch panels, and you do not know which wall plate is connected to each port. Assuming that you are working on a properly maintained and documented network installation, which of the following is the easiest way to determine which port is connected to which wall plate?Consult the cable diagram provided by the cabling contractor at the time of the installation.Call the cable installation contractor and see if he or she can remember which ports go with which wall plates.Attach a tone generator to a patch panel port and then test each wall plate with a locator until you find the correct one. Repeat this for each port that needs labeling.Use a cable certifier to locate the patch panel port associated with each wall plate port.

      45 Which of the following IT asset management documents published by the International Organization for Standardization (ISO) defines a standard for Software Identification Tags (SWIDs) containing inventory information about the software running on a computer or other device?ISO 19770-1ISO 19770-2ISO 19770-3ISO 19770-4ISO 19770-5

      46 Which of the following are places where network wiring connections are found? (Choose all that apply.)MDFMTBFIDFRDP

      47 A rack diagram is typically ruled vertically using which of the following measurements?InchesCentimetersUnitsGrids

      48 In a standard Cisco network diagram, what component does the symbol in the figure represent?A switchA routerA hubA gateway

      49 Which of the following statements are true about the differences between a diagram of a patch panel installation organized physically and one that is organized logically? (Choose all that apply.)A physical diagram is organized according to the floors and rooms where the cable drops are located.A physical diagram is precisely scaled to represent the actual patch panel hardware.A logical diagram is organized according to the divisions within the company, such as departments and workgroups.A logical diagram uses an organization that represents company divisions but does not physically resemble the actual patch panels.

      50 A diagram of a telecommunications room or Intermediate Distribution Frame (IDF) for an office building is typically based on which of the following?A hand-drawn sketchA series of photographsAn architect's planA 3D modelA site survey report

      51 The documentation