Explanation

Encrypting confidential data stored on the server and performing regular backup will not make the server fault tolerant.
Fault tolerance is the ability to continue work when a hardware failure occurs on a system. A fault-tolerant system is designed from the ground up for reliability by building multiples of all critical components, such as CPUs, memories, disks and power supplies into the same computer. In the event one component fails, another takes over without skipping a beat.
Answer options A, C, and D are incorrect. The following steps will make the server fault tolerant:
Adding a second power supply unit
Adding one more same sized disk as a mirror on the server implementing cluster servers facility

In information security, security risks are considered an indicator of threats coupled with vulnerability. In other words, security risk is a probabilistic function of a given threat agent exercising a particular vulnerability and the impact of that risk on the organization. Security risks can be mitigated by reviewing and taking responsible actions based on possible risks. These risks can be analyzed and measured by the risk analysis process.
Answer option B is incorrect. Security risks can never be removed completely but can be mitigated by taking proper actions.

The LogLevel directive is used in server Error log of the Apache Web server log. This directive is used to control the types of errors that are sent to the error log by constraining the severity level. Eight different levels are present in the LogLevel directive, which are shown below in order of their descending significance:

Note: When a certain level is specified, the messages from all other levels of higher significance will also be reported. For example, when LogLevel crit is specified, then messages with log levels of alert and emerg will also be reported.
Answer option B is incorrect. The ErrorLog directive is used to set the name and location of the file to which the server will log any errors it encounters. If the file-path does not begin with a slash sign (/), it is assumed to be relative to the ServerRoot. If the file-path begins with a pipe sign (|), then it is assumed to be a command that handles the error log.
Answer option A is incorrect. The CustomLog directive is used to log requests to the server. The format of the log is specified and the logging can be made conditional on request characteristics with the help of environment variables. Environment variables can be adjusted on a per-request basis with the help of the mod_setenvif or mod_rewrite module.
Answer option C is incorrect. The LogFormat directive can exist in one of the two forms. In the first form, only one argument is specified; and in the second form explicit format with a nickname is associated. This directive specifies the log format that is used by logs specified in subsequent TransferLog directives.

Incident response is a process that detects a problem, determines the cause of an issue, minimizes the damages, resolves the problem, and documents each step of process for future reference. To perform all these roles, an incident response team is needed. The incident response team includes the following representatives who are involved in the incident response process: Lead investigator: The lead investigator is the manager of an incident response team. He is always involved in the creation of an incident response plan. The duties of a lead investigator are as follows:Keep the management updated.Ensure that the incident response moves smoothly and efficiently.Interview and interrogate the suspects and witnesses. Information security representative: The information security representative is a member of the incident response team who alerts the team about possible security safeguards that can impact their ability to respond to an incident. Legal representative: The legal representative is a member of the incident response team who ensures that the process follows all the laws during the response to an incident. Technical representative: Technical representative is a representative of the incident response team. More than one technician can be deployed to an incident. The duties of a technical representative are as follows:Perform forensic backups of the systems that are involved in an incident. Provide more information about the configuration of the network or system. Human resources: Human resources personnel ensure that the policies of the organization are enforced during the incident response process. They suspend access to a suspect if it is needed. Human resources personnel are closely related with the legal representatives and cover up the organization's legal responsibility.