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NEW QUESTION # 140
Application owners are reporting that their application stops responding after several days of running, and they need to restart it. A Linux administrator obtains the following details from the dmesgcommand:
The application owners mentioned that resources to the system have boon increased, and the error takes longer to appear. Which of the following best describes the reason the process is being terminated by OOM?
Answer: B
Explanation:
The OOM killer is terminating the application after it runs for several days, and adding system resources only delays the failure. That behavior indicates the application is gradually consuming more memory over time, which is consistent with a memory leak.
NEW QUESTION # 141
A systems technician needs to install a third-party software package. Which of the following commands would allow the technician to download this software package from a remote server?
Answer: D
Explanation:
wget is specifically designed to download files from remote servers using HTTP, HTTPS, or FTP protocols, making it the appropriate command for retrieving software packages.
NEW QUESTION # 142
A systems administrator is reconfiguring existing user accounts in a Linux system. Which of the following commands should the administrator use to include "myuser" in the finance group?
Answer: C
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
To add an existing user (myuser) to an existing group (finance) without removing them from other groups, the correct command is usermod -aG finance myuser. The -aG option appends the user to the supplementary group (s) specified.
Other options:
* A. groupadd is for creating new groups, not adding users to groups.
* B. groupmod is for modifying group properties, not user membership.
* C. useradd creates new users; not applicable to existing users.
Reference:
CompTIA Linux+ Study Guide: Exam XK0-006, Sybex, Chapter 6: "User and Group Management", Section:
"Modifying Group Membership"
CompTIA Linux+ XK0-006 Objectives, Domain 1.0: System Management
NEW QUESTION # 143
An administrator set up a new user account called " test " . However, the user is unable to change their password. Given the following output:
Which of the following is the most likely cause of this issue?
Answer: A
Explanation:
For normal users to change their own password, /bin/passwd must have the SUID bit set (permissions should be -rwsr-xr-x). The SUID bit allows users to run the program with the permissions of the file owner (root), which is required to update /etc/shadow. The provided output shows /bin/passwd does not have the SUID bit (no ' s ' in the owner's execute field). As a result, user " test " receives an " Authentication token manipulation error " . The password can be changed as root, which confirms it ' s a permissions/SUID issue.
Other options:
B). If the password didn't meet requirements, a different error would appear.
C). There is no minimum day limit preventing password change (see chage -l output).
D). The account and password are active (not disabled).
Reference:
CompTIA Linux+ Study Guide: Exam XK0-006, Sybex, Chapter 6: " User and Group Management " , Section: " Managing User Passwords and Policies " CompTIA Linux+ XK0-006 Objectives, Domain 1.0: System Management
NEW QUESTION # 144
A newly hired Linux administrator needs to grant access to the Linux servers by generating a password-protected RSA key of 4096 bytes. Which of the following commands will accomplish this task?
Answer: D
Explanation:
The ssh-keygencommand is used to generate SSH key pairs.
To generate an RSA key with a length of 4096 bits, the correct syntax is:
* -t rsa: Specifies the type of key to generate, which is RSA.
* -b 4096: Specifies the number of bits for the key, in this case 4096.
By running this command, the user will be prompted to enter a passphrase to password-protect the key, which satisfies the requirement for generating a password-protected RSA key of 4096 bits.
NEW QUESTION # 145
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