DELL EMC D-PDPS4400-A-01 Practice Exams
Last updated on Oct 21,2026- Exam Code: D-PDPS4400-A-01
- Exam Name: Dell PowerProtect DP Series Appliances DP4400 Achievement
- Certification Provider: DELL EMC
- Latest update: Oct 21,2026
Which step must be completed before deploying Avamar and Data Domain virtual machines on a DP4400?
- A . Installing DD Boost plugin
- B . Completing the ESXi installation
- C . Formatting the data domain disks
- D . Resetting BIOS to factory defaults
B
Explanation:
VMware ESXi must be installed on the DP4400 host in order to create and run the Avamar and Data Domain virtual machines.
You’ve just completed the deployment of the Avamar and Data Domain virtual appliances on DP4400. However, during the backup job, Avamar throws an error stating “DD Boost connection failed.”
What is the MOST LIKELY root cause?
- A . Avamar services are not fully started
- B . The DD Boost user was not created or registered in Avamar
- C . The file system was not mounted in ESXi
- D . DNS resolution for vCenter failed
B
Explanation:
For Avamar to communicate with Data Domain via DD Boost, a valid Boost user must be configured on DD and added into Avamar with appropriate permissions.
What is the recommended frequency for running Avamar Garbage Collection to maintain system performance?
- A . Daily
- B . Weekly
- C . Monthly
- D . Quarterly
B. Weekly
Explanation:
Running garbage collection weekly helps reclaim storage space and maintain optimal backup performance.
Where can you obtain the compatibility matrix to verify supported upgrade versions for DP4400 components?
- A . Avamar GUI
- B . Data Domain OS CLI
- C . Dell EMC support portal
- D . ESXi Web Console
C
Explanation:
The Dell EMC support portal provides official documentation, including the compatibility matrix, to validate version compatibility during upgrades.
A customer is auditing their backup system. They ask for a report summarizing job success and failure rates over the past 7 days.
What is the recommended way to generate this?
- A . Manually review backup logs from /var/log
- B . Use avtar –report=summary to export historical job data
- C . Run avmaint purge –expired
- D . Query the ESXi job status table via vSphere Web Client
B
Explanation:
The avtar report option is designed to generate job summaries including successes, failures, durations, and statuses ― ideal for audits and operational reviews.
Before upgrading the DP4400, which of the following steps is essential to prevent data loss?
- A . Powering off the entire system
- B . Backing up all critical system data
- C . Disabling iDRAC access
- D . Formatting the storage drives
B
Explanation:
Backing up system configurations, Avamar settings, and Data Domain snapshots is crucial to ensure recovery in case of upgrade failure.
After deploying the Avamar virtual appliance, what command should be used to begin the network configuration wizard?
- A . dpnctl start
- B . dpnnetutil
- C . dpnsetup
- D . netconfig
B
Explanation:
dpnnetutil launches the configuration wizard to set hostname, IP, DNS, NTP, and optional SMTP settings for the Avamar appliance.
During network setup of the DP4400, which ports should be connected to support backup and replication traffic?
- A . Only 1GbE Port 1
- B . iDRAC and 1GbE Port 2
- C . 10GbE Ports 1C4
- D . 1GbE Ports 1C2 only
C
Explanation:
10GbE Ports are used for high-performance backup data, replication, and cloud-tier traffic. At least one should be connected for data operations.
You are on-site to install a DP4400 appliance. After powering it on and connecting all cables, you attempt to access the iDRAC interface using the default IP address (192.168.0.120) but receive no response.
What is the MOST appropriate next step?
- A . Perform a hard reset on the appliance
- B . Reboot the appliance into BIOS mode
- C . Connect a monitor and keyboard locally to configure the iDRAC network settings
- D . Proceed with Avamar installation without iDRAC
C
Explanation:
If iDRAC is unreachable via the default IP, local console access allows you to manually assign the correct IP address and troubleshoot networking issues.
You are deploying replication between two DP4400 systems in different data centers. The configuration appears successful, but no data is being transferred.
What is the MOST LIKELY cause?
- A . Cloud Tier is enabled on the source system
- B . Replication schedule has not been created
- C . Deduplication is not enabled
- D . Data Domain file system is not mounted
B. Replication schedule has not been created
Explanation:
Even if replication context and connection are configured, no data will move until a replication schedule is set in the DD System Manager.