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A technician is troubleshooting a lack of outgoing audio on a third-party Windows 10 VoIP application, The PC uses a USB microphone connected to a powered hub. The technician verifies the microphone works on the PC using Voice Recorder. Which of the following should the technician do to solve the issue?
In Windows 10, there are privacy settings that control access to certain devices, such as microphones, cameras, and other input devices. If the microphone is not enabled under these privacy settings, the VoIP application may not have access to it, causing a lack of outgoing audio.
The technician can go to the Windows 10 Settings menu, select the Privacy submenu, and under App permissions, select Microphone. The technician should then turn on the toggle switch for the VoIP application to allow it to access the microphone.
Removing the microphone from the USB hub and plugging it directly into a USB port on the PC may or may not solve the issue, as the issue could be related to the privacy settings. Deleting the microphone from Device Manager and scanning for new hardware may also not solve the issue, as the issue could be related to the privacy settings. Replacing the USB microphone with one that uses a traditional 3.5mm plug is not recommended, as it would require purchasing a new microphone and may not solve the issue.
A systems administrator notices that a server on the company network has extremely high CPU utilization. Upon further inspection, the administrator sees that the server Is consistently communicating with an IP address that is traced back to a company that awards digital currency for solving hash algorithms. Which of the following was MOST likely used to compromise the server?
Cryptomining malware is a type of malicious program that uses the CPU resources of a compromised server to generate cryptocurrency, such as Bitcoin or Ethereum. It can cause extremely high CPU utilization and network traffic to the IP address of the cryptocurrency service. Keylogger, ransomware and boot sector virus are other types of malware, but they do not cause the same symptoms as cryptomining malware. Verified Reference: https://www.comptia.org/blog/what-is-cryptomining https://www.comptia.org/certifications/a
A suite of security applications was installed a few days ago on a user's home computer. The user reports that the
computer has been running slowly since the installation. The user notices the hard drive activity light is constantly solid. Which of the following should be checked FIRST?
System File Checker to check for modified Windows files. System File Checker (SFC) is a Windows utility that can be used to scan for and restore corrupt Windows system files. SFC can be used to detect and fix any modified or corrupted system files on a computer, and thus should be checked first when a user reports that their computer has been running slowly since the installation of security applications[1][2]. By checking SFC, any modified or corrupted system files can be identified and fixed, potentially improving the overall performance of the computer.
An office is experiencing constant connection attempts to the corporate Wi-Fi. Which of the following should be disabled to mitigate connection attempts?
SSID
The SSID (Service Set Identifier) is the name of a wireless network that is broadcasted by the router or the Wi-Fi base station. The SSID helps nearby devices to identify and connect to the available networks. However, broadcasting the SSID also exposes the network to potential connection attempts from unauthorized or malicious users. Therefore, disabling the SSID can mitigate connection attempts by making the network invisible or hidden to the devices that are not already connected to it. To connect to a hidden network, the user would need to know the exact SSID and enter it manually.
The other options are not related to mitigating connection attempts to the corporate Wi-Fi. DHCP (Dynamic Host Configuration Protocol) is a protocol that assigns IP addresses to the devices on a network. Firewall is a software or hardware device that filters the incoming and outgoing network traffic based on predefined rules. SSD (Solid State Drive) is a type of storage device that uses flash memory to store data. Disabling any of these options would not prevent connection attempts to the Wi-Fi network, and may cause other problems or issues for the network functionality and performance.
What is SSID + how to find (and change) it1
Choosing an SSID2
SSID Meaning: Finding Your Network's Name3
A user reports that a PC seems to be running more slowly than usual. A technician checks system resources, but disk, CPU, and memory usage seem to be fine. The technician sees that GPU temperature is extremely high. Which of the following types of malware is MOST likely to blame?
The type of malware that is most likely to blame for a PC running more slowly than usual and having an extremely high GPU temperature is a ''cryptominer''. Cryptominers are a type of malware that use the resources of a computer to mine cryptocurrency. This can cause the computer to run more slowly than usual and can cause the GPU temperature to rise. Spyware is a type of malware that is used to spy on a user's activities, but it does not typically cause high GPU temperatures. Ransomware is a type of malware that encrypts a user's files and demands payment to unlock them, but it does not typically cause high GPU temperatures.Boot sector viruses are a type of malware that infects the boot sector of a hard drive, but they do not typically cause high GPU temperatures12
