ExamGecko
Search Search Login
Home Home / Docker / DCA
Question list
Search
Search

List of questions

Search
Open VPLUS File
Convert VPLUS to PDF

Related questions

The Kubernetes yaml shown below describes a networkPolicy. Will the networkPolicy BLOCK this traffic? Solution: a request issued from a pod lacking the tier: api label, to a pod bearing the tier: backend label
Does this command create a swarm service that only listens on port 53 using the UDP protocol? Solution. 'docker service create -name dns-cache -p 53:53 -constraint networking.protocol.udp=true dns-cache'
Is this a supported user authentication method for Universal Control Plane? Solution. x.500
Will this command display a list of volumes for a specific container? Solution. 'docker container logs nginx --volumes'
Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate? Solution. Set INSECURE_REGISTRY in the' /etc/docker/default' configuration file.
The Kubernetes yaml shown below describes a clusterIP service. Is this a correct statement about how this service routes requests? Solution: Traffic sent to the IP of this service on port 8080 will be routed to port 80 in a random pod with the label aPP: nginx.
A Kubernetes node is allocated a /26 CIDR block (64 unique IPs) for its address space. If every pod on this node has exactly two containers in it, how many pods can this address space support on this node?
Will this command list all nodes in a swarm cluster from the command line? Solution. 'docker inspect nodes
A user's attempts to set the system time from inside a Docker container are unsuccessful. Could this be blocking this operation? Solution. SELinux
Will this command display a list of volumes for a specific container? Solution: docker volume inspect nginx'

Question 98 - DCA discussion

Report
Export

You created a new service named 'http' and discover it is not registering as healthy. Will this command enable you to view the list of historical tasks for this service?

Solution: 'docker service ps http'

A.

Yes

Answers
A.

Yes

B.

No

Answers
B.

No

Suggested answer: A

Explanation:

= The command 'docker service ps http' will list the tasks that are running as part of the 'http' service, as well as the task history1. The task history shows the previous states of the tasks, such as running, shutdown, rejected, etc.This can help you troubleshoot why the service is not registering as healthy, by looking at the current state, error, and ports of each task1.Reference:

docker service ps | Docker Docs

Docker Certified Associate Guide

DCA Prep Guide

Show Answer
asked 08/11/2024
MM rahn
41 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