CompTIA Updated 220-1102 Exam Questions and Answers by oren

Linux is the most commonly used operating system in embedded systems because it is open source, free, customizable, and supports a wide range of architectures and devices. Linux also offers many advantages for embedded development, such as real-time capabilities, modularity, security, scalability, and reliability. Linux can run on embedded systems with limited resources, such as memory, storage, or power, and can be tailored to the specific needs of the application. Linux also has a large and active community of developers and users who contribute to its improvement and innovation. Some examples of embedded systems that use Linux are smart TVs, routers, drones, robots, smart watches, and IoT devices

A VPN (Virtual Private Network) is a service that allows remote employees to access the company’s network resources securely over the internet as if they were on premises. A VPN encrypts the data traffic between the employee’s device and the VPN server, and assigns the employee a virtual IP address that belongs to the company’s network. This way, the employee can access the local servers, files, printers, and other resources without exposing them to the public internet. A VPN also protects the employee’s privacy and identity by masking their real IP address and location.

The most effective clarifying question for the help desk technician to ask the user in order to understand the issue is A. What is the error message? This question will help the technician to identify the possible cause and solution of the problem, as the error message will provide specific information about the nature and location of the error, such as the server name, the port number, the protocol, the authentication method, or the network status. The error message will also help the technician to troubleshoot the issue by following the suggested steps or searching for the error code online.

This question is more effective than the other choices because:

• B. Does the program work on another computer? is not a very helpful question, as it will not reveal the source of the error or how to fix it. The program may work on another computer for various reasons, such as different network settings, firewall rules, permissions, or software versions. However, this question will not tell the technician what is wrong with the user’s computer or the remote server, or what needs to be changed or updated to make the program work.
• C. Did the program ever work? is not a very relevant question, as it will not address the current issue or how to resolve it. The program may have worked in the past, but it may have stopped working due to changes in the network configuration, the server status, the software updates, or the user credentials. However, this question will not tell the technician what has changed or how to restore the program functionality.
• D. Is anyone else having this issue? is not a very useful question, as it will not explain the reason or the solution for the error. The issue may affect only the user, or multiple users, depending on the scope and the impact of the error. However, this question will not tell the technician what is causing the error or how to fix it for the user or the others.

References:

How to Troubleshoot Terminal Emulation Problems - Techwalla : How to Read and Understand Windows Error Messages - Lifewire : How to Troubleshoot Network Connectivity Problems - How-To Geek : How to Troubleshoot Software Problems - dummies : How to Troubleshoot Common PC Issues For Users - MakeUseOf

Mobile device multifactor authentication (MFA) is a method of verifying a user’s identity by requiring two or more factors, such as something the user knows (e.g., password, PIN, security question), something the user has (e.g., smartphone, OTP app, security key), or something the user is (e.g., fingerprint, face, iris)12. The combination of fingerprint and password meets the requirements for mobile device MFA because it uses two different factors: something the user is (fingerprint) and something the user knows (password). The other combinations do not meet the requirements because they use only one factor: something the user knows (password or PIN) or something the user does (swipe).

References1: Set up the Microsoft Authenticator app as your verification method2: What is Multi-Factor Authentication (MFA)? | OneLogin