CompTIA A+ Review

While implementing a non-carrier-grade wireless backhaul, a technician notices the current channel selection is extremely polluted with various RF signals. Upon performing a spectral analysis, the technician discovers a channel containing almost no RF pollution. Unfortunately, the technician is unable to select that channel. Which of the following is the MOST likely reason for this issue?

A user connects a smartphone to a laptop. Which of the following types of networks has the user created?

A technician replaced a motherboard on a server, and now the 64-bit hypervisor is not loading correctly. Which of the following needs to be enabled for the hypervisor to run?

An engineer is experiencing unexpected reboots on a graphics workstation when rendering complex 3-D models. The workstation is configured with a 115V power supply that is rated at 200W and connected to a UPS. The central processing unit contains 16 hyperthreaded cores, and a discrete graphics solution utilizing an 8-pin power connector is installed in a PCI Express x16 slot. Which of the following indicates where the technician should begin troubleshooting?

A user submitted a ticket to report an issue with a new printer that is no longer accepting new print jobs. The technician verifies the printer is on and notices the printer LCD screen has the following error message: Paper Jam, Jam in fuser. Which of the following is the MOST efficient next step the technician should complete?

Client-side virtualization guest machines have security requirements similar to physical machines, but they also need to ensure separation from other guest machines. Which of the following BEST describes this client-side guest security requirement?

Which of the following would MOST likely be used to obtain electronic images of a large number of printed documents?

A technician is upgrading a faulty motherboard that was ordered by an end user for an old, high-end desktop computer. However, the technician is unable to install the CPU into the socket. Upon closer inspection, the technician notices the pins on the CPU do not line up with the socket. Which of the following would be the best course of action for the technician to take NEXT?

Which of the following describes metered utilization of cloud resources?

A technician is setting up a device to use two-factor authentication. Which of the following meets this requirement?

A user reports that a PC occasionally falls to boot. The user reboots the PC. But the performance is degrading. The technician hears a strange, repetitive, ticking noise coming from the PC. Which of the following should the technician do FIRST?

A technician is setting up a new desktop computer and will be installing the hard drive directly on the motherboard without using cables to connect it. Which of the following will the technician be installing?

An organization has some computers running macOS and some computers running Windows. The computers running macOS also need to run a piece of software that is only available on Windows. Which of the following BEST describes the solution for running Windows software on a computer running macOS?

Which of the following standards supports MIMO technology?

A technician is upgrading a legacy wireless router for a home user. After installing the new router and configuring the SSID to be the same, none of the devices will connect to the network. Which of the following should the technician check NEXT?

A technician is installing new software on a macOS computer. Which of the following file types will the technician MOST likely use?

A technician is asked to resize a partition on the internal storage drive of a computer running macOS. Which of the followings tools should the technician use to accomplish this task?

Someone who is fraudulently claiming to be from a reputable bank calls a company employee. Which of the following describes this incident?

A technician suspects a rootkit has been installed and needs to be removed. Which of the following would BEST resolve the issue?

A user is experiencing frequent malware symptoms on a Windows workstation. The user has tried several times to roll back the state but the malware persists. Which of the following would MOST likely resolve the issue?

Which of the following Wi-Fi protocols is the MOST secure?

A technician installed a known-good, compatible motherboard on a new laptop. However, the motherboard is not working on the laptop. Which of the following should the technician MOST likely have done to prevent damage?

When a user calls in to report an issue, a technician submits a ticket on the user's behalf. Which of the following practices should the technician use to make sure the ticket is associated with the correct user?

A technician is configuring a new Windows laptop Corporate policy requires that mobile devices make use of full disk encryption at all limes Which of the following encryption solutions should the technician choose?

Which of the following provide the BEST way to secure physical access to a data cento server room? (Choose two.)