Explanation
The most basic version of Windows that includes BitLocker is Windows Pro. BitLocker is a feature of Windows Pro that provides full disk encryption for all data on a storage drive [1]. It helps protect data from unauthorized access or theft and can help secure data from malicious attacks. Pro for Workstations includes this feature, as well as other features such as support for up to 6 TB of RAM and ReFS.

Explanation
This would ensure that the support documentation reflects the current state of the network and prevents any confusion or mismatch during a network outage. Updating the network diagrams is also one of the best practices for network documentation, as stated in the Official CompTIA A+ Core 2 Study Guide1. The other options are not as effective or feasible as option B. Performing annual network topology reviews is too infrequent and may not capture recent changes. Allowing network changes once per year is too restrictive and may not meet the business needs. Routinely backing up switch configuration files is important, but it does not help with identifying new switches or devices on the network.

Explanation
A keylogger is a type of malware that captures user input, such as keystrokes, mouse clicks, and clipboard data, and sends it to a malicious actor. Keyloggers can be used to steal passwords, credit card numbers, personal information, and other sensitive data.

The first thing that a support technician should check to resolve the issue of not being able to receive emails or browse the internet from a smartphone while traveling is the data plan coverage. The data plan coverage determines how much data and where the user can use on the smartphone's cellular network. The data plan coverage may vary depending on the user's location, carrier and subscription. The data plan coverage may not include or support certain areas or countries that the user is traveling to, or may charge extra fees or limit the speed or amount of data that the user can use. The data plan coverage does not affect text messages and phone calls, which use different network services and protocols. User account status is not likely to cause the issue of not being able to receive emails or browse the internet from a smartphone while traveling, unless the user account has been suspended or terminated by the carrier or the email provider. Mobile OS version is not likely to cause the issue of not being able to receive emails or browse the internet from a smartphone while traveling, unless the mobile OS has a major bug or compatibility problem with the network or the email app. Network traffic outages may cause the issue of not being able to receive emails or browse the internet from a smartphone while traveling, but they are less likely and less common than data plan coverage issues, and they should also affect text messages and phone calls. References: CompTIA A+ Core 2 (220-1002) Certification Exam Objectives Version 4.0, Domain 1.5

Explanation
An equipment lock is a physical security device that attaches a laptop to a fixed object, such as a desk or a table, with a cable and a lock. This can prevent the laptop from being stolen by unauthorized persons.
Encryption, LoJack, multifactor authentication and bollards are other security measures, but they do not physically prevent theft. Verified References: https://www.comptia.org/blog/physical-security
https://www.comptia.org/certifications/a