All Obstacles During XK0-006 Exam Preparation with XK0-006 Real Test Questions [Q41-Q57]

QUESTION 41
In the echo “profile-$num-$name”line of a shell script, the variable $numseems to not be expanding during execution. Which of the following notations ensures the value is expanded?

QUESTION 42
A systems administrator is preparing a Linux system for application setup. The administrator needs to create an environment variable with a persistent value in one of the user accounts. Which of the following commands should the administrator use for this task?

QUESTION 43
A Linux administrator needs to securely erase the contents of a hard disk. Which of the following commands is the best for this task?

QUESTION 44
A systems administrator wants to review the logs from an Apache 2 error.log file in real time and save the information to another file for later review. Which of the following commands should the administrator use?

QUESTION 45
Users cannot access a server after it has been restarted. At the server console, the administrator runs the following commands;

Which of the following is the cause of the issue?

QUESTION 46
Which of the following most accurately describes a webhook?

QUESTION 47
A Linux systems administrator is running an important maintenance task that consumes a large amount of CPU, causing other applications to slow. Which of the following actions should the administrator take to help alleviate the issue?

QUESTION 48
An administrator wants to search a file named myFile and look for all occurrences of strings containing at least five characters, where characters two and five are i, but character three is not b. Which of the following commands should the administrator execute to get the intended result?

QUESTION 49
A systems administrator needs to open the DNS TCP port on a Linux system from network
10.0.0.0/24. Which of the following commands should the administrator use for this task?

QUESTION 50
Which of the following commands should an administrator use to see a full hardware inventory of a Linux system?

QUESTION 51
A Linux user runs the following command:
nohup ping comptia.com &
Which of the following commands should the user execute to attach the process to the current terminal?

QUESTION 52
A DevOps engineer made some changes to files on a local repository. The engineer realizes that the changes broke the application and the changes need to be reverted back. Which of the following commands is the best way to accomplish this task?

QUESTION 53
A Linux administrator needs to analyze a compromised disk for traces of malware. To complete the analysis, the administrator wants to make an exact, block-level copy of the disk. Which of the following commands accomplishes this task?

QUESTION 54
A Linux administrator attempts to log in to a server over SSH as root and receives the following error message: Permission denied, please try again. The administrator is able to log in to the console of the server directly with root and confirms the password is correct. The administrator reviews the configuration of the SSH service and gets the following output:

Based on the above output, which of the following will most likely allow the administrator to log in over SSH to the server?

QUESTION 55
Which of the following commands should an administrator use to see a full hardware inventory of a Linux system?

QUESTION 56
Which of the following best describes journald?

QUESTION 57
A systems administrator needs to enable routing of IP packets between network interfaces.
Which of the following kernel parameters should the administrator change?