CompTIA A+ Practice Exam Questions and Answers

What is the benefit of thermal paste? a. Thermal paste has no benefits in modern processors b. Reduces fire hazards by eliminating heat sink scorching c. Acts as a cooling gel to reduce CPU temperature d. Facilitates ...

What is the benefit of thermal paste? a. Thermal paste has no benefits in modern processors b. Reduces fire hazards by eliminating heat sink scorching c. Acts as a cooling gel to reduce CPU temperature d. Facilitates heat transfer between the heat sink and CPU - ANSWER Facilitates heat transfer between the heat sink and CPU Which type of Ethernet cable can be used for connecting two PCs without the use of a router? a. RJ-45 b. RJ-11 c. Crossover Cable d. Rollover Cable - ANSWER Crossover Cable Which of the following is a wireless communication that requires devices to be within 2 inches of each other to transfer information? a. Infrared b. NFC c. Bluetooth d. WiFi - ANSWER NFC What cooling mechanism provides the lowest temperatures for internal PC components? a. Fans b. Heat Sinks c. Thermal Paste d. Liquid Cooling - ANSWER Liquid Cooling What is the function of a digitizer in a modern smartphone? a. Allows mobile devices to support analog printing devices b. Translates touches on a device's screen into computer readable input c. Converts digital wireless signals into analog for WiFi use d. Used by the headphone jack to accept input from headphones with buttons, typically used to pause music or change the system volume - ANSWER Translates touches on a device's screen into computer readable input Due to a recent increase in cellular data usage your employer has released a new policy that says company owned mobile devices are not to be connected to other mobile devices for the purposes of sharing the device's cellular data service. What feature is the policy referring to? a. NFC b. Hotspot c. AirDrop d. WiFi Splitting - ANSWER Hotspot What type of cabling uses plastic or glass to transmit data using light? a. Etheroptic b. Fiber c. Category 8e d. Lightning - ANSWER Fiber Which video cable can send both digital and analog signals? a. VGA b. DVI-D c. Mini-HDMI d. DVI-I - ANSWER DVI-I Your employer requires all mobile devices have a VPN client installed. The VPN client should be enabled whenever public or otherwise untrusted wireless networks are used. What is the benefit of using a VPN? a. VPNs provide an encrypted tunnel that protects data transmitted wireless from being read by malicious actors b. VPNs upgrade any HTTP traffic to HTTPS automatically c. VPNs provide a packet scanning service that ensures the untrusted wireless network is safe to use d. VPNs are a client only application that scans network traffic for possible viruses and worms - ANSWER VPNs provide an encrypted tunnel that protects data transmitted wireless from being read by malicious actors Which option is a reversible connector based on an open specification? a. Micro-USB b. Mini-USB c. USB-C d. Lightning - ANSWER USB-C What type of display technology is most commonly found on eReaders? a. LED b. LCD c. E Ink d. eNote - ANSWER E Ink Your manager has asked you to purchase new hard drives for the Media Department. They often open large files like high resolution images and video files. You need to choose a drive type that balances performance with costs. Which type would be best? a. HDD b. Hybrid c. None of these d. SSD - ANSWER Hybrid A technician has been asked to assign an IP address to a new desktop computer. Which of the following is a valid IP address the technician should assign? a. 127.0.0.1 b. 172.16.2.189 c. 192.168.257.1 - ANSWER 172.16.2.189 How many pins are present in SATA data and power cables? a. 40 for data and 4 for power b. 8 for data and 12 for power c. 15 for power and 7 for data d. 15 for both power and data - ANSWER 15 for power and 7 for data Your employer offers company owned cellphones to some employees. A ticket has been created by an employee stating their cellphone is not connecting to the company WiFi. What troubleshooting step should be done first? a. Replace the PCIe WiFi card b. Restart the device c. Verify WiFi is enabled d. Submit it ti the OEM vendor for review - ANSWER Verify WiFi is enabled What option is the most common display technology used in laptop computers? a. LCD b. CRT c. E Ink d. Plasma - ANSWER LCD What type of battery is most common for use in mobile devices like laptops and smart devices? a. Alkaline b. Lithium Ion c. Silver Oxide d. Lead Acid - ANSWER Lithium Ion Which of the following is a network protocol used to download emails onto a mobile phone? a. SMTP b. POP3 c. Yahoo Mail d. IMEI - ANSWER POP3 A technician is called to replace a display for a workstation. Which of the following would MOST likely be used to connect the display to the workstation? a. USB b. NFC c. DSL d. DVI - ANSWER DVI What technology provides a physical access control when logging into a laptop? a. DIMM b. TPM c. Smart Card d. Security Cable - ANSWER Smart Card True or False: Laptops use an Alternating Current (AC) jack to charge their battery. True; Laptops use AC directly False; Laptops use Direct Current (DC) - ANSWER False Your supervisor has asked you to bring her a DE-15 connector. Which of the following is she referring to? a. DVI-A b. CD-ROM c. HDMI d. VGA - ANSWER VGA What special operating system level configuration is necessary when running Windows 10 as a virtual machine? a. Windows 10 does not support installation as a virtual machine b. Install the Microsoft Generic Processor (MGP) driver c. Install Windows 10 using HyperHost mode d. No special configuration is needed - ANSWER No special configuration is needed A technician is working on a PC that utilizes a RAID array. The user of the system has reported that random files are becoming corrupted on creation with no pattern to the activity. One drive in the array is likely failing and causing the read/write failures. Which of the following types of RAID is MOST likely in use? a. RAID 10 b. RAID 0 c. RAID 1 d. RAID 5 e. Password age - ANSWER RAID 0 A technician needs to install a wireless router for a client that supports speeds up to 11 Mbps and operates on the 2.4 GHz band. Which of the following should the technician select? a. 802.11a b. 802.11b c. 802.11g d. 802.11n - ANSWER 802.11b Which of the following network protocols will MOST likely be used when sending and receiving Internet email? (Select TWO.) a. SMTP b. POP3 c. SNMP d. DHCP e. ICMP f. SFTP - ANSWER SMTP; POP3 After installing the OS on a workstation, a technician notices that everything is displayed in large windows and the viewing area is limited. Which of the following will the technician need to adjust to resolve this issue? a. Color depth b. Orientation c. DPI Settings d. Resolution - ANSWER Resolution A user wants to use a laptop outside the house and still remain connected to the Internet. Which of the following would be the BEST choice to accomplish this task? a. Thunderbolt cable b. Bluetooth cable c. Infrared port d. WLAN card - ANSWER WLAN card In a virtualized environment, what technology is used to run the virtual machines? a. Hypervisor b. vHost c. Sandbox d. Virtual Host Machine - ANSWER Hypervisor What is the maximum transmission speed of Cat 6 cabling at 100 meters? a. 1500 Mbps b. 10 Gbpos c. 1 Gbps d. 10 Mbps - ANSWER 1 Gbps What wireless technology is used by contactless payment services? a. Bluetooth b. NFC c. WiFi d. IR - ANSWER NFC Which USB standard supports up to 5 Gigabit per second transfer speeds? a. 2.6 b. 3.0 c. 5.0 d. 2.0 - ANSWER 3.0 True or False: Data may be recovered after a drive failure in a RAID 0 configuration. True False - ANSWER False You are helping a friend build a new gaming PC. To save on costs they have opted to buy a new motherboard but keep their existing DDR2 memory from their previous PC. After having some trouble getting the memory to fit into the motherboard you check the motherboard manufacturer's documentation and find they recommend their own DDR3 memory. How should you proceed? a. Purchase DDR3 memory from any manufacturer b. Buy the recommended memory from the same manufacturer as the motherboard c. Purchase a DDR2 to DDR3 slot adapter d. Enable the DDR downgrade feature using a jumper on the motherboard's pins - ANSWER Purchase DDR3 memory from any manufacturer Which type of cabling is immune to electromagnetic interference? a. STP b. Fiber c. UTP d. USB - ANSWER Fiber Which type of motherboard expansion slot has various speeds such as x16 and x32? a. AGP b. PCI c. CNR d. PCIe - ANSWER PCIe Which of the following protocols is used for secure web browsing? a. SFTP b. HTTPS c. L2TP d. IMAP - ANSWER HTTPS Your employer has a large team of developers that focus on developing an important set of internal business applications. In an effort to speed up time to market of bugfixes and new features you have been asked to find a developer focused cloud platform. What type of cloud computing model has a focus on software development? a. PaaS(Platform as a Service) b. IaaS(Infrastructure as a service) c. DaaS(Data as a Service) d. SaaS(Software as a Service) - ANSWER PaaS What is the maximum transmission speed of Cat 6 cabling at 55 meters? a. 1,000 Mbps b. 10,000 Mbps c. 100 Mbps d. 1 Tbps - ANSWER 10,000 Mbps What wireless protocol is most likely to be used to create a WPAN? a. 5G b. 802.11 c. LTE d. Bluetooth - ANSWER Bluetooth What connector type is usually used to provide power from a PCs power supply to an internal hard drive, CD or DVD drive? a. USB-C b. USB 3.0 c. DB-9 d. Molex e. This computer has a virus - ANSWER Molex Which of the following is a type of internal data storage device found in laptops? a. Magnetic disk b. Volatile c. Flash drive d. USB - ANSWER Magnetic disk A technician is tasked with replacing a Wi-Fi antenna in a laptop computer. Which of the following places would the antenna MOST likely to be located? a. Around the laptop keyboard b. Under the laptop's bezel c. Next to the laptop battery d. Around the laptop's bezel - ANSWER Around the laptop keyboard