CompTIA Updated SK0-005 Exam Questions and Answers by orion

The cache is a temporary storage area that holds frequently accessed data or instructions for faster retrieval. The cache can improve the read times for accessing files by reducing the need to access the hard drive, which is slower than the cache memory1. Therefore, the first step the technician should take is to check if the cache is turned on for the new file server. If the cache is turned off, the technician should enable it and see if the read times improve. The other options are incorrect because they are not the first steps to take. Adding more memory, installing faster hard drives, or enabling link aggregation are possible ways to improve the performance of the file server, but they are more costly and time-consuming than checking the cache. Moreover, they may not address the root cause of the problem if the cache is turned off.

chmod is a command-line tool that changes the permissions of files and directories in Linux and Unix systems. chmod go-rwx means to remove read, write, and execute permissions for group and other users from a file or directory. This can ensure only the root user can modify and execute the script, since root user has full access to all files and directories regardless of their permissions. References: https://linux.die.net/man/1/chmod

This is the best command to find out which commands can be used by a user with sudo privileges because it lists the allowed and forbidden commands for a given user or role. The -l option stands for list, and the -U option specifies the user name. The output of this command will show what commands can be executed with sudo by that user on that server. References: https://www.sudo.ws/man/1.8.13/sudo.man.html

A mantrap is a security device that consists of two interlocking doors that allow only one person to enter at a time. A mantrap would prevent employees from blocking the door in the main data center and force them to enter properly using their credentials. The other options would not enforce proper entry to the data center