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Question 1

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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 follo

Question 2

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A Linux administrator wants to find out whether files from the wget package have been altered since they were installed. Which of the following commands will provide the correct information?

Question 3

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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 e

Question 4

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A Linux engineer has been notified about the possible deletion of logs from the file /opt/app/logs. The engineer needs to ensure the log file can only be written into without removing previous entr

Question 5

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A systems administrator needs to check if the service systemd-resolved.service is running without any errors. Which of the following commands will show this information?

Question 6

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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 th

Question 7

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A Linux administrator needs to remove software from the server. Which of the following RPM options should be used?

Question 8

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A Linux system fails to start and delivers the following error message: Which of the following commands can be used to address this issue?

Question 9

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Based on an organization's new cybersecurity policies, an administrator has been instructed to ensure that, by default, all new users and groups that are created fall within the specified values bel

Question 10

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A Linux administrator is trying to remove the ACL from the file /home/user/dat a. txt but receives the following error message: Given the following analysis: Which of the following is causing

Related questions

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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 108 - XK0-005 discussion

Which of the following technologies provides load balancing, encryption, and observability in containerized environments?

Virtual private network

Sidecar pod

Overlay network

Service mesh

Suggested answer: D

Explanation:

"A service mesh controls the delivery of service requests in an application. Common features provided by a service mesh include service discovery, load balancing, encryption and failure recovery."

The technology that provides load balancing, encryption, and observability in containerized environments is service mesh. A service mesh is a dedicated infrastructure layer that manages the communication and security between microservices in a distributed system. A service mesh consists of two components: a data plane and a control plane. The data plane is composed of proxies that are deployed alongside the microservices as sidecar pods. The proxies handle the network traffic between the microservices and provide features such as load balancing, encryption, authentication, authorization, routing, and observability. The control plane is responsible for configuring and managing the data plane and providing a unified interface for the administrators and developers. A service mesh can help improve the performance, reliability, and security of containerized applications and simplify the development and deployment process. A service mesh is the technology that provides load balancing, encryption, and observability in containerized environments. This is the correct answer to the question. The other options are incorrect because they either do not provide all the features of a service mesh (virtual private network or overlay network) or are not a technology but a component of a service mesh (sidecar pod). Reference: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 19: Managing Cloud and Virtualization Technologies, page 574.

https://www.techtarget.com/searchitoperations/definition/service-mesh

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asked 02/10/2024

John Johnson

29 questions

Your answer: A B C D

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