Exam4Training

Adobe 9A0-397 Adobe Experience Manager Developer/Operations Engineer Online Training

Question #1

Multiple OSGi configurations exist in multiple locations within the Java Content Repository (JCR).

In which order do these configurations apply?

  • A . configurations with the prod runmode and then /etc/config./apps
  • B . /configurations with the most matching runmodes and then /apps/confisg, /jcr/configs
  • C . configurations with the prod runmode and then /libs/configs, /apps/configs
  • D . /apps./libs and then configurations with the most matching runmodes

Reveal Solution Hide Solution

Correct Answer: D
Question #2

When configuring the dispatcher module, what setting is required to make sure the dispatcher is used?

  • A . SetHandler dispatcher-handler
  • B . SetHandler dispatcher-module
  • C . SetModule module-dispatcher
  • D . SetModule handler-dispatcher

Reveal Solution Hide Solution

Correct Answer: A
Question #3

Which three regular maintenance tasks should be executed and scheduled regularly? (Choose three.)

  • A . Audit log purge
  • B . User cache purge
  • C . Workflow purge
  • D . Version purging

Reveal Solution Hide Solution

Correct Answer: ABC
Question #4

A DevOps engineer needs to install bundles via content packages for a continuous deployment setup. In which two ways should this be configured? (Choose two.)

  • A . The JCR installer will only update the bundle if the filename changes; always use a unique bundle version in the filename
  • B . For an out-of-the-box installation, bundles can be installed from /apps./libs and /etc
  • C . To install bundles for a certain runmode only, the folder name can be used to limit environments where a bundle is installed
  • D . Before the deployment of the new bundle, remove the old bundle from JCR as first deployment step to make sure the bundle is updated
  • E . Whenever the JCR installer detects a change of a bundle file, it will install it to the Felix runtime
  • F . The JCR installer detects bundle changes at arbitrary depths in the JCR tree and automatically deploys those changes bundles

Reveal Solution Hide Solution

Correct Answer: AB
Question #5

A DevOps engineer needs to install a package to a remote AEM staging system using continuous deployment.

Which two tools and methods should the DevOps engineer use? (Choose two.)

  • A . curl based script with package manager REST API
  • B . make file with aem-deploy plugin
  • C . content package maven plugin
  • D . apache ant aem-deploy plugin

Reveal Solution Hide Solution

Correct Answer: AC
Question #6

A DevOps engineer checks the OSGI console after deployment of a bundle. The OSGI bundle is in the installed state and is not starting.

Where should the DevOps engineer look for issues?

  • A . The install log
  • B . The bundle install log within the OSGI console
  • C . The error log
  • D . The OSGI install log within the CRX

Reveal Solution Hide Solution

Correct Answer: A
Question #7

From which three locations can CRX packages be installed using an out-of-the-box configuration? (Choose three.)

  • A . /apps
  • B . /content/dam
  • C . /home/groups
  • D . /var
  • E . /libs/system
  • F . /etc/packages

Reveal Solution Hide Solution

Correct Answer: BEF
Question #8

When running an AEM instance in Production Ready Mode, which two security measures are applied? (Choose two.)

  • A . WebDAV Access to repositories will only be available on author instances.
  • B . Author user account is disabled on publish instances.
  • C . The CRXDE Support bundle (com.adobe.granite.crxde-support) is disabled.
  • D . HTTPS transport layer is enabled.

Reveal Solution Hide Solution

Correct Answer: AD
AD

Explanation:

Reference https://helpx.adobe.com/experience-manager/6-3/sites/administering/using/security­checklist.html

Question #9

How should a DevOps engineer increase offline tar compaction performance?

  • A . Set "> /dev/nul 2>&1"
  • B . Increase memory allocated to the Java container
  • C . Set -Dcompaction-progress-log to 1
  • D . Set -Dtar.memoryMapped to true

Reveal Solution Hide Solution

Correct Answer: D
D

Explanation:

Reference http://www.aemcq5tutorials.com/tutorials/online-offline-tar-compaction-in-aem/ #performance_tar_compact

Question #10

How should the run mode be configured to set it to "UAT"?

  • A . Rename the quickstart.jar filename to contain the run mode before the initial UAT installation.
  • B . Set the run mode in the system properties in the start script on all systems of the UAT environment and restart the system.
  • C . Configure the run mode on the Felix console of all systems in the UAT environment.
  • D . Create a configuration package that contains this run mode, deploy it on the author of the UAT environment, and replicate the package.

Reveal Solution Hide Solution

Correct Answer: B

Question #11

A DevOps engineer receives a blank page in the browser while the log file prints "No renderer for extension html".

What is a potential cause of this issue?

  • A . The path for the resource type as declared by the content node does not exist
  • B . The resource super type declaration is missing on the content node
  • C . The apache dispatcher does not send the correct format header
  • D . The content path is not configured to deliver HTML renderings

Reveal Solution Hide Solution

Correct Answer: A
Question #12

A DevOps engineer needs to verify that a bundle has been installed correctly. The DevOps engineer points to "system/console/bundles" and receives an "HTTP ERROR: 403".

What is the cause of this error?

  • A . The DevOps engineer needs to check the error.log file to find out what happened.
  • B . The bundle was not installed correctly.
  • C . An AEM restart is required to perform post-installation actions.
  • D . The DevOps engineer did not authenticate to the server.

Reveal Solution Hide Solution

Correct Answer: A
Question #13

What should a DevOps engineer do when installing Hotfixes, Feature Packs, Cumulative Fix Packs and Service packs? (Choose two.)

  • A . Test them before deploying to PROD on a PROD copy
  • B . Watch the request logs closely for any issues
  • C . Test them after deploying to PROD on the live PROD system
  • D . Watch the error logs closely for any issues

Reveal Solution Hide Solution

Correct Answer: AD
Question #14

You are configuring backup for the first time.

Which backup strategy should a DevOps engineer use?

  • A . Single complete repository backup on each AEM instance
  • B . One complete repository backup and one content package backup via CRX for quick restore on author AEM instance
  • C . One complete repository backup and one content package backup via CRX for quick restore on each AEM instance
  • D . Different backup packages for different content via the CRX package on each AEM instance

Reveal Solution Hide Solution

Correct Answer: B
Question #15

A DevOps engineer needs to obtain an already existing OSGi bundle from a running AEM instance.

Which method should the DevOps engineer use?

  • A . Identify the bundle name via the REST API and look for it on the filesystem within the datastore folder
  • B . Identify the bundle ID via the REST API and download it via curl
  • C . Identify the bundle ID via the OSGi console and create a content package for it to download
  • D . Identify the bundle ID via the OSGi console and look for it on the filesystem within the Launchpad folder

Reveal Solution Hide Solution

Correct Answer: D
Question #16

Which four can be deployed using a CRX Package? (Choose four.)

  • A . A repository data store configuration
  • B . A runmode configuration
  • C . The key for encrypting values in the repository (/etc/key)
  • D . A bundle with a non-standard start level
  • E . Cloud service configurations
  • F . Replication agents
  • G . Trust store certificates

Reveal Solution Hide Solution

Correct Answer: ACDF
Question #17

When configuring the Java Virtual Machine (JVM), which setting configures the JVM heap size?

  • A . xmx and jvmx
  • B . xss and jvms
  • C . xms and jhs
  • D . xms and xmx

Reveal Solution Hide Solution

Correct Answer: D
Question #18

Given the Sling log rotation configuration, which two controls should be used for the rotation of the log? (Choose two.)

  • A . A time/date schedule
  • B . A maximum file size
  • C . A system cron file
  • D . A system task

Reveal Solution Hide Solution

Correct Answer: AB
Question #19

When should a DevOps engineer schedule maintenance tasks? (Choose two.)

  • A . During other maintenance tasks
  • B . During planned "downtimes"
  • C . During out of office hours
  • D . During a backup window

Reveal Solution Hide Solution

Correct Answer: BC
Question #20

How should a DevOps engineer configure against Cross Site Request Forging attacks?

  • A . Create a filter to allow /libs/granite/csrf/token.json path and CSRF-Token header in dispatcher
  • B . Set Access-Control-Allow-Origin to wildcard
  • C . Send the proper X-Frame-Options HTTP response headers that instruct the browser to disallow framing from other domains

Reveal Solution Hide Solution

Correct Answer: A
A

Explanation:

Reference https://helpx.adobe.com/experience-manager/dispatcher/using/configuring-dispatcher-to­prevent-csrf.html

Exit mobile version