Free CompTIA A+ Practice Test Take the A+ course with us here. Buy the 101 Labs – CompTIA A+ workbook. Back to free exams page. 1. Which of the following allows multiple USB devices to be connected to a computer?USB hubDocking stationUSB cableKVM switchQuestion 1 of 50 2. Which feature turns off all wireless connections on a mobile device. It's common on phones and tablets, and some laptops have this feature as well?Silent modeAirplane modeHotspot modeVibrate modeQuestion 2 of 50 3. You have purchased a new laptop and you noticed that the speakers are not working. You plugged in the headphones, but you can't hear any sound. How should you correct this problem?Update audio device driverUnmute the soundSet speakers as the default audio deviceConnect an external speakerQuestion 3 of 50 4. The recommended way to remove the USB drive is to use the 'Safely Remove Hardware' icon in the system tray, stop the drive and then unplug itTrueFalseQuestion 4 of 50 5. Which device is normally worn on the wrist, and it tracks a user's movements, heart rate and it may be able to track sleep patterns and have a clock and an alarm?Smart glassesFitness monitorSmartwatchSmart headsetQuestion 5 of 50 6. Which technology represents a discovery and authentication process that validates the communication link?Bluetooth Infrared HotspotTetheringQuestion 6 of 50 7. Which of the following components are most likely replaceable in a laptop motherboard? HDDRAMVideo cardNetwork cardQuestion 7 of 50 8. Bluetooth can be used for battery charging and it can also be used to connect to speakers, headsets, game pads, and other input/output devices.TrueFalseQuestion 8 of 50 9. Which of the following can be given to the provider to block the phone from being used by unauthorized people, in case the phone is lost?Mobile numberInternational Mobile Equipment Identity (IMEI) numberSimSSIDQuestion 9 of 50 10. All tablets come equipped with which of the following capabilities?WiFiBuilt-in cameraBluetoothR-45 JackQuestion 10 of 50 11. You want to retrieve e-mails from an internet service provider’s email server. Which of the following protocols can be used for this action?SSHPOP3/IMAPUDPFTPQuestion 11 of 50 12. A web browser expects that the webserver is using TCP port 80. If that web server is using a port other then port 80, by default a browser will not be able to communicate to that server. In such a case, how can you get a browser to connect to the webserver?Use a proxy serverUse a firewallSpecify inside the browser to use a different port on a web serverUse a different browserQuestion 12 of 50 13. Which of the following are the functions of the SMTP protocol?Providing name resolution servicesSending email messages from a client deviceServing web pagesSMTP only works for outgoing messagesQuestion 13 of 50 14. Which of the following protocols is used by Microsoft Windows to transfer files from one system to another?SMBAFPTFTPDNSQuestion 14 of 50 15. From the following types of switches, which switch type allows to have both switching and routing functionality within the same device?Managed switchVirtual switchLayer 2 switchMulti-layer switchQuestion 15 of 50 16. You are given a network subnet 121.101.61.252/30 from your ISP. When you configure your router, what subnet mask should you assign?255.255.255.248255.255.255.0255.255.255.252255.255.255.240Question 16 of 50 17. Of the following wireless encryption methods, which one is the newest and most secure?WPAWEPWPA2802.11aQuestion 17 of 50 18. You work as a system administrator for a company. One of the users is working from home and complains that he is not able to connect to his work machine in the office via RDP. Which port needs to be opened on the firewall to grant him RDP access?80338944322Question 18 of 50 19. Which of the following technologies allows you to power a device (such as a VoIP phone), through one of the ethernet ports on a switch?Ethernet over powerPowerboardWireless access pointPower over ethernetQuestion 19 of 50 20. Which type of server hosts files for easy access, allowing users to browse, transfer and upload the files?WebserverApplication serverFTP serverRADIUS serverQuestion 20 of 50 21. The access control, caching, URL filtering and high level of privacy are the useful features of which one of the following server?Proxy serverFile serverMail serverDNS serverQuestion 21 of 50 22. Which of the following tools is used for crimping RJ45 to connect to the Ethernet cable?WirecutterCable stripperCrimperNetwork cable testerQuestion 22 of 50 23. Which of the following cable you would use, If you are going to make a connection from the hub to hub, switch to switch, router to router, the hub to switch, or a computer directly to a router?Regular patch cableConsole cableStraight-through cableCrossover cableQuestion 23 of 50 24. Which of the following cable can transmit data at speeds up to 100 Mbps, for a distance of 100 meters?CAT1CAT5CAT3CAT4Question 24 of 50 25. Which RAID array type combines mirroring for data protection and striping for speed?RAID 10RAID 5RAID 1RAID 6Question 25 of 50 26. DVI-D cable sends both analog and digital. A DVI-I cable, however, is only capable of sending digital signalsTrueFalseQuestion 26 of 50 27. You are replacing a hard drive and noticed a 15-pin connector on the motherboard. What type of drive is needed?Serial ATAIDEUSBFlash driveQuestion 27 of 50 28. An onboard Graphics Processing Unit (GPU) uses what kind of storage medium?RAMInternal HDDUSB External HDDQuestion 28 of 50 29. You work as a system administrator for a company. Few users complain that they are not able to connect to the wired network. You checked and found out that their PCs are not receiving the IP addresses from the DHCP server. What could be the possible cause that you should look at first?PCs network adapter is faultyDHCP IP pool is exhausted Ethernet cable is faultyInternet is downQuestion 29 of 50 30. Refer to the exhibit. Identify the component displayed belowSound cardVideo cardGraphics cardeSATA cardQuestion 30 of 50 31. Match the type of memory with its descriptionECC It does not maintain parity information and therefore, cannot perform error checkingUnselectShort-term memory used to store working dataUnselectThis type of memory can continue to work even if it contains corrupt dataUnselectIt is a file that is used as virtual memory on the systemUnselectPaging It does not maintain parity information and therefore, cannot perform error checkingUnselectShort-term memory used to store working dataUnselectThis type of memory can continue to work even if it contains corrupt dataUnselectIt is a file that is used as virtual memory on the systemUnselectRAM It does not maintain parity information and therefore, cannot perform error checkingUnselectShort-term memory used to store working dataUnselectThis type of memory can continue to work even if it contains corrupt dataUnselectIt is a file that is used as virtual memory on the systemUnselectNon-parity It does not maintain parity information and therefore, cannot perform error checkingUnselectShort-term memory used to store working dataUnselectThis type of memory can continue to work even if it contains corrupt dataUnselectIt is a file that is used as virtual memory on the systemUnselectQuestion 31 of 50 32. Which of the following service refers to the use of a complete cloud-based software development environment?Platform as a Service (PaaS)Software as a Service (SaaS) Infrastructure as a service (IaaS)Cloud as a service (CaaS)Question 32 of 50 33. Which type of cloud service handles the task of managing software, its deployment, and it includes the platform and infrastructure as well?PaaSIaaSAWSSaaSQuestion 33 of 50 34. Which Windows management utility allows you to configure an application to run automatically or at any regular interval?Task ManagerTask SchedulerEven ViewerMSCONFIGQuestion 34 of 50 35. Which of the cloud service is based on the monitored use of resources such as storage, CPU utilization, or network bandwidth? On-demandEC2ElasticityMeasured serviceQuestion 35 of 50 36. A user reports that his PC keeps booting to an incorrect device. Put the following steps in the correct order to fix the issue Restart the system Enter BIOS setup Change the boot sequence to include the correct device Remove non-bootable disc or USB flash drive Question 36 of 50 37. In RAID 0 the data is striped across both drives to improve performance but does not include any redundancyTrueFalseQuestion 37 of 50 38. Which feature of cloud computing allows computing resources to be automatically allocated in response to demand?On-demand self-serviceMeasured serviceRapid elasticityResource poolingQuestion 38 of 50 39. IP addresses starting with 169. are assigned automatically when an IP address cannot be received from which of the following servers?DNS serverDHCP serverTFTP serverProxy serverQuestion 39 of 50 40. To avoid low RF signal issues, which of the following non-overlapping channels should be used?16511Question 40 of 50 41. One Windows 10 user has a yellow exclamation mark on the network icon. What does it indicate?No Internet connectivitySystem files are corruptNetwork adaptor is not installedWindows need to be reinstalledQuestion 41 of 50 42. A Windows system has suffered a Blue Screen of Death (BSOD). The system indicates the NTFS_FILE_SYSTEM error. What does this error mean?The hard drive is corruptFault device driverMemory leakRegistry errorQuestion 42 of 50 43. Which command is used for querying the Domain Name System (DNS) server to obtain a domain name or IP address mapping?tracertipconfigpingnslookupQuestion 43 of 50 44. Match the command with its usageipconfig Used to track the pathway taken by a packet UnselectUsed to display TCP and UDP connectionsUnselectUsed to check the IP address of a systemUnselectUsed to test the reachability of a host Unselectnetstat Used to track the pathway taken by a packet UnselectUsed to display TCP and UDP connectionsUnselectUsed to check the IP address of a systemUnselectUsed to test the reachability of a host Unselecttracert Used to track the pathway taken by a packet UnselectUsed to display TCP and UDP connectionsUnselectUsed to check the IP address of a systemUnselectUsed to test the reachability of a host Unselectping Used to track the pathway taken by a packet UnselectUsed to display TCP and UDP connectionsUnselectUsed to check the IP address of a systemUnselectUsed to test the reachability of a host UnselectQuestion 44 of 50 45. Which of the following protocols is used to encrypt and digitally sign the E-mails?IMAPS/MIMESMTPPOP3Question 45 of 50 46. In which of the following method, the cloud service provider provides all resources in a resource pool while you have an option to select the specific resources, such as network bandwidth or storage?Measured serviceElasticityResource poolingOn-demandQuestion 46 of 50 47. You work as a system administrator for a company. Few users complain that they are not able to open any website on their Windows 10 machines. You need to make sure their PCs are getting a correct DNS IP. Which of the following command you should use?ipconfigipconfig /allipconfig /showallifconfigQuestion 47 of 50 48. Few users, using the Linux operating system report a network connectivity issue. Which command should you use to check their machine's IP address and subnet mask?ipconfig /allipconfigtracertifconfigQuestion 48 of 50 49. Which of the following cloud model provides benefits of both public and private clouds?IaaSCommunityHybridPaaSQuestion 49 of 50 50. Which of the following statements are true about Solid State Drives (SSDs)?Non-volatile memoryVery fast performanceHigher capacity in comparison to magnetic drivesLower power consumptionQuestion 50 of 50 Loading...