ExamGecko
Search Search Login
Home Home / CompTIA / XK0-005
Question list
Search
Search

List of questions

Search
Open VPLUS File
Convert VPLUS to PDF

Related questions

A systems administrator is enabling LUKS on a USB storage device with an ext4 filesystem format. The administrator runs dmesg and notices the following output: Given this scenario, which of the following should the administrator perform to meet these requirements? (Select three).
A Linux administrator needs to harden a system and guarantee that the Postfix service will not run, even after a restart or system upgrade. Which of the following commands allows the administrator to fulfill the requirement?
A Linux systems administrator is updating code. After completing the update, the administrator wants to publish the updated code without including the configuration files. Which of the following should the administrator use to accomplish this task?
A Linux engineer set up two local DNS servers (10.10.10.10 and 10.10.10.20) and was testing email connectivity to the local mail server using the mail command on a local machine when the following error appeared: The local machine DNS settings are: Which of the following commands could the engineer use to query the DNS server to get mail server information?
Junior system administrator had trouble installing and running an Apache web server on a Linux server. You have been tasked with installing the Apache web server on the Linux server and resolving the issue that prevented the junior administrator from running Apache. INSTRUCTIONS Install Apache and start the service. Verify that the Apache service is running with the defaults. Typing "help" in the terminal will show a list of relevant event commands. If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
A new application container was built with an incorrect version number. Which of the following commands should be used to rename the image to match the correct version 2.1.2?
Which of the following options describes the purpose of YAML?
A Linux administrator needs to analyze a failing application that is running inside a container. Which of the following commands allows the Linux administrator to enter the running container and analyze the logs that are stored inside?
A Linux system fails to start and delivers the following error message: Which of the following commands can be used to address this issue?
A Linux administrator is scheduling a system job that runs a script to check available disk space every hour. The Linux administrator does not want users to be able to start the job. Given the following: The Linux administrator attempts to start the timer service but receives the following error message: Which of the following is MOST likely the reason the timer will not start?

Question 268 - XK0-005 discussion

Report
Export

A systems administrator notices the process list on a mission-critical server has a large number of processes that are in state 'Z' and marked as 'defunct.' Which of the following should the administrator do in an attempt to safely remove these entries from the process list?

A.
Kill the process with PID 1.
Answers
A.
Kill the process with PID 1.
B.
Kill the PID of the processes.
Answers
B.
Kill the PID of the processes.
C.
Kill the parent PID of the processes.
Answers
C.
Kill the parent PID of the processes.
D.
Reboot the server.
Answers
D.
Reboot the server.
Suggested answer: C

Explanation:

As the web search results show, processes in state Z are defunct or zombie processes, which means they have terminated but their parent process has not reaped them properly. They do not consume any resources, but they occupy a slot in the process table. To remove them from the process list, the administrator needs to kill the parent process of the zombies, which will cause them to be reaped by the init process (PID 1). Killing the zombies themselves or the init process will not have any effect, as they are already dead. Rebooting the server may work, but it is not a safe or efficient option, as it may cause unnecessary downtime or data loss for a mission-critical server.

Reference

Processes in a Zombie (Z) or Defunct State | Support | SUSE, paragraph 3

linux - Zombie vs Defunct processes? - Stack Overflow, answer by admirableadmin

How To Kill Zombie Processes on Linux | Linux Journal, paragraph 4

Show Answer
asked 02/10/2024
Vadym Popov
39 questions
PreviousPreviousNextNext
User
Your answer:
0 comments
Sorted by

Leave a comment first

ExamGecko

Copyright @2023 ExamGecko | All right reserved

Mail us: [email protected]
About us
Contact us
Twitter X
Facebook
Medium
Convert VPLUS to PDF
Open VPLUS files Easily and Quickly
Privacy Policy
Disclaimer
Terms