AD0-E124 Practice Online

Question 1

AEM author instance has been unstable and unresponsive.

Restarting the instance resolves the issue temporarily

Server disk space and CPU utilization seems fine

Top and free command shows enough memory

The following error appears in the logs: "java.lang.OutOfMemoryError: gc overhead limit exceeded".

Which JVM parameter should the DevOps Engineer add to troubleshoot?

A : -XX:+HeapDumpOnOutOfMemoryError

B : -XX:-PrintConcurrentLocks

C : -XX:OnOutOfMemoryError='kill -3 %p'

D : -XX:+PrintGCDetails

Answer: A

Question 2

One week ago, a P3 ticket was closed. The ticket contains all pertinent information about the issue and the corresponding resolution.

Today, the exact issue is happening. The resolution is not working.

What should the DevOps engineer do?

A : Open a new ticket

B : Escalate via the Actions section

C : Reopen the same ticket

Answer: C

Question 3

A server has been provisioned with 32GB, 16 cores, and 1TB for use as an author instance to host AEM Assets.

Which operation should the DevOps engineer perform before starting AEM?

A : Set CQFILE_SIZE_LIMIT to 1TB

B : Set CQJVM_OPTS -Xmx to 32gb

C : Set CQJVM_OPTS -Xmx to 16gb

D : Set CQJVM_OPTS -XX:MaxPermSize to 16gb

Answer: C

Question 4

An АЕМ publish instance is running slower than expected. Overall page load time is high, and system performance degrades over time.

A DevOps Engineer narrowed down the following long running requests:

search query image.....

Which step should be taken to resolve this issue?

A : Create new Lucene Index definitions to include OOTB and custom properties

B : Integrate SOLR Search Index with AEM

C : Modify the search component to use the new Core Components and leverage Index definitions

D : Use /allowedClients in dispatcher.any to cache requests with URL parameter q

Answer: B

Question 5

The DevOps Engineer should copy users and groups from an existing environment to another one, except for the “admin” user.

What first action should be taken to build the users package?

A : Add an exclude pattern from "/home/users/admin”"

B : Run the query "/jcr:root/home/users//element(*,rep:User)[@rep:userName="admin"]"

C : Run the query "/jcr:root/home/users//element(*,rep:User)[@rep:principalName="admin"]"

D : Add a filter for "/home/users/admin"

Answer: C

Name:	Adobe Experience Manager DevOps Engineer Expert
Exam Code:	AD0-E124
Certification:	Adobe Experience Manager
Vendor:	Adobe
Total Questions:	154
Last Updated:	Oct 22, 2026

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