220-1102 Exam Dumps - CompTIA A+ Certification Core 2 Exam

A PowerShell script is a plain text file that contains one or more PowerShell commands. Scripts have a .ps1 file extension and can be run on your computer or in a remote session. PowerShell scripts can be used to automate tasks and change settings on Windows devices. To create and run a PowerShell script, you need a text editor (such as Visual Studio Code or Notepad) and the PowerShell Integrated Scripting Environment (ISE) console. You also need to enable the correct execution policy to allow scripts to run on your system

The best course of action for the technician is to restore the defaults and reimage the corporate OS on the device. This will remove the jailbreak and any unauthorized or malicious apps that may have been installed on the device, as well as restore the security features and policies that the company has set for its devices. This will also ensure that the device can receive the latest updates and patches from the manufacturer and the company, and prevent any data leakage or compromise from the device.

Jailbreaking is a process of bypassing the built-in security features of a device to install software other than what the manufacturer has made available for that device1. Jailbreaking allows the device owner to gain full access to the root of the operating system and access all the features1. However, jailbreaking also exposes the device to various risks, such as:

The loss of warranty from the device manufacturers2.

Inability to update software until a jailbroken version becomes available2.

Increased security vulnerabilities32.

Decreased battery life2.

Increased volatility of the device2.

Some of the signs of a jailbroken device are:

A high number of ads, which may indicate the presence of adware or spyware on the device3.

Receiving data-usage limit notifications, which may indicate the device is sending or receiving data in the background without the user’s knowledge or consent3.

Experiencing slow response, which may indicate the device is running unauthorized or malicious apps that consume resources or interfere with the normal functioning of the device3.

Finding apps or icons that the user did not install or recognize, such as Cydia, which is a storefront for jailbroken iOS devices1.

The other options are not sufficient or appropriate for dealing with a jailbroken device. Running an antivirus and enabling encryption may not detect or remove all the threats or vulnerabilities that the jailbreak has introduced, and may not restore the device to its original state or functionality. Backing up the files and doing a system restore may not erase the jailbreak or the unauthorized apps, and may also backup the infected or compromised files. Undoing the jailbreak and enabling an antivirus may not be possible or effective, as the jailbreak may prevent the device from updating or installing security software, and may also leave traces of the jailbreak or the unauthorized apps on the device.

The scenario described in the question suggests that the workstation has been infected by a ransomware, which is a type of malware that encrypts the files on the target system and demands a ransom for the decryption key12. The file extension .enc is commonly used by some ransomware variants to mark the encrypted files34. The developer is unable to open the database files manually because they are encrypted and require the decryption key, which is usually held by the attacker.

The best option for recovering the data is to utilize the backups, assuming that the backups are recent, valid, and not affected by the ransomware. Backups are copies of the data that are stored in a separate location or device, and can be used to restore the data in case of a disaster, such as a ransomware attack . By restoring the data from the backups, the developer can avoid paying the ransom and losing the data permanently.

Accessing a restore point is not a good option, because restore points are snapshots of the system settings and configuration, not the data files. Restore points can help to undo some system changes, such as installing a faulty driver or software, but they cannot recover the encrypted data files .

Rebooting into safe mode is also not a good option, because safe mode is a diagnostic mode that allows the system to run with minimal drivers and services, but it does not affect the data files. Safe mode can help to troubleshoot some system issues, such as malware infections, but it cannot decrypt the data files .

Using an AV to scan the affected files is also not a good option, because an AV is a software that can detect and remove some malware, but it cannot decrypt the data files. An AV can help to prevent or remove some ransomware infections, but it cannot recover the encrypted data files .

References1: CompTIA A+ Certification Exam Core 2 Objectives, page 10 2: CompTIA A+ Core 2 (220-1102) Complete Video Course, Lesson 26 Documentation 3: How to remove .enc file virus (Ransomware virus removal guide) 4: Enc File Extension - What is an .enc file and how do I open it? : CompTIA A+ Certification Exam Core 2 Objectives, page 13 : CompTIA A+ Core 2 (220-1102) Complete Video Course, Lesson 26 Documentation : What is a restore point? : How to use System Restore on Windows 10 : [What is Safe Mode?] : [How to boot into Safe Mode on Windows 10] : CompTIA A+ Certification Exam Core 2 Objectives, page 10 : [Can antivirus software remove ransomware?]

The first step in troubleshooting a hardware issue is to identify the hardware device that is causing the problem. Asking the user for the model number of the hardware can help the help desk technician to find the specifications, manuals, drivers, and other relevant information for the device. This can also help the technician to determine if the device is compatible with the user’s system, if it has any known issues or defects, and if it is covered by warranty or support contract. Asking the user for the model number of the hardware is a help desk best practice that can save time and effort in resolving the issue

iOS and Android are the two most popular and widely used mobile operating systems for smartphones. They are both based on Unix-like kernels and provide a variety of features and applications for users and developers. iOS is developed by Apple and runs exclusively on Apple devices, such as iPhones and iPads. Android is developed by Google and runs on a range of devices from different manufacturers, such as Samsung, Huawei, and Motorola. The other options are not mobile operating systems for smartphones, but rather for other types of devices or platforms. macOS is a desktop operating system for Apple computers, such as MacBooks and iMacs. Windows is a desktop operating system for Microsoft computers, such as Surface and Dell. Chrome OS is a web-based operating system for Google devices, such as Chromebooks and Chromecast. Linux is a family of open-source operating systems for various devices and platforms, such as Ubuntu, Fedora, and Raspberry Pi.

Sandbox testing is a method of testing changes in a simulated environment that mimics the real one, without affecting the actual production system. Sandbox testing is useful for change management because it allows the testers to evaluate the change before deployment, and ensure that it works as intended, does not cause any errors or conflicts, and meets the requirements and expectations of the stakeholders. Sandbox testing also helps to protect the investment in the existing system, as it reduces the risk of introducing bugs or breaking functionality that could harm the customer experience or the business operations. Sandbox testing also gives the testers more control over the customer experience, as they can experiment with different scenarios and configurations, and optimize the change for the best possible outcome.

Classification: a) Phishing

This email is a phishing attempt, as it tries to trick the user into clicking on a malicious link that could compromise their account or personal information. Some suspicious items in this email are:

The email has a generic greeting and does not address the user by name.

The email has spelling errors, such as “unusal” and “Locaked”.

The email uses a sense of urgency and fear to pressure the user into clicking on the link.

The email does not match the official format or domain of the IT Help Desk at CompTIA.

The email has two black bat icons, which are not related to CompTIA or IT support.

The appropriate resolution for this email is A. Report email to Information Security. The user should not click on the link, reply to the email, or provide any personal or account information. The user should forward the email to the Information Security team or use a professional email form to report the phishing attempt. The user should also delete the email from their inbox and trash folder.

The suspicious items to select are:

b) From address

d) Hyperlinks

These items indicate that the email is not from a legitimate source and that the link is potentially malicious. The other items are not suspicious in this case, as the to address is the user’s own email and there are no attachments.

Classification: b) Spam

This email is a spam email, as it is an unsolicited and unwanted message that tries to persuade the user to participate in a survey and claim a reward. Some suspicious items in this email are:

The email offers a free wireless headphone as an incentive, which is too good to be true.

The email does not provide any details about the survey company, such as its name, address, or contact information.

The email contains an external survey link, which may lead to a malicious or fraudulent website.

The email does not have an unsubscribe option, which is required by law for commercial emails.

The appropriate resolution for this email is C. Unsubscribe. The user should look for an unsubscribe link or button at the bottom of the email and follow the instructions to opt out of receiving future emails from the sender. The user should also mark the email as spam or junk in their email client, which will help filter out similar emails in the future. The user should not click on the survey link, reply to the email, or provide any personal or financial information.

Classification: c) Legitimate

This email is a legitimate email, as it is from a trusted source and has a valid purpose. There are no suspicious items in this email, as the from address, the to address, the attachment, and the email body are all consistent and relevant. The appropriate resolution for this email is B. Perform no additional actions. The user can open the attachment and review the orientation material as instructed. The user does not need to report, unsubscribe, or delete this email.

Classification: a) Phishing

This email is a phishing attempt, as it tries to deceive the user into downloading and running a malicious attachment that could compromise their system or data. Some suspicious items in this email are:

The email has a generic greeting and does not address the user by name or username.

The email has an urgent tone and claims that a security patch needs to be installed immediately.

The email has an attachment named “patch1.exe”, which is an executable file that could contain malware or ransomware.

The email does not match the official format or domain of CompTIA Information Security.

The appropriate resolution for this email is A. Report email to Information Security. The user should not open the attachment, reply to the email, or provide any personal or account information. The user should forward the email to the Information Security team or use a professional email form to report the phishing attempt. The user should also delete the email from their inbox and trash folder.

Classification: c) Legitimate

This email is a legitimate email, as it is from a trusted source and has a valid purpose. There are no suspicious items in this email, as the from address, the to address, and the email body are all consistent and relevant. The appropriate resolution for this email is B. Perform no additional actions. The user can reply to the email and thank the sender for the interview opportunity. The user does not need to report, unsubscribe, or delete this email.

WPA2 is the only protocol among the options that supports fast roaming between networks. Fast roaming, also known as IEEE 802.11r or Fast BSS Transition (FT), enables a client device to roam quickly in environments implementing WPA2 Enterprise security, by ensuring that the client device does not need to re-authenticate to the RADIUS server every time it roams from one access point to another1. WEP, WPA, LEAP, and PEAP do not support fast roaming and require the client device to perform the full authentication process every time it roams, which can cause delays and interruptions in the network service.