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Dell Avamar Deploy Free Sample Questions

Covers Avamar use cases and architecture, deploying the Avamar Virtual Edition, Avamar Data Store installation, system monitoring, backup and restore operations, and replication and Cloud Tier.

20 free sample questions200 in the full practice test

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D-AV-DY-23 Sample Questions

  1. Question 1

    A financial services company is deploying a new multi-node Avamar Data Store Gen4T. During the network planning phase, the administrator is configuring DNS. Which record type is mandatory for the utility node to ensure proper internal and external communication for management and replication tasks?

    Answer and explanation

    Correct answer: A

    For proper operation, Avamar requires both forward (A) and reverse (PTR) DNS records for the utility node and all data nodes. The reverse lookup is critical for many internal services, replication, and system health checks to correctly identify nodes by their IP addresses. Missing PTR records is a common cause of post-installation issues.

  2. Question 2

    An administrator is reviewing the daily maintenance activities on an Avamar server. They notice that the garbage collection process is taking significantly longer than usual, impacting the backup window. What is the MOST likely cause for the extended garbage collection duration?

    Answer and explanation

    Correct answer: A

    Garbage collection (GC) is responsible for deleting data chunks that are no longer referenced by any backup. A high rate of data change means that a large number of existing data chunks become unreferenced with each new backup. This increases the workload for the GC process as it has more expired data to identify and remove, leading to longer run times.

  3. Question 3

    A consultant is designing an Avamar solution for a company with a central data center and 50 remote offices with slow, high-latency WAN links. The primary requirement is to minimize backup traffic over the WAN. Which Avamar feature is most critical to meeting this requirement?

    Answer and explanation

    Correct answer: A

    Avamar's key differentiator is its source-side, variable-length deduplication. The Avamar client agent on each remote office machine analyzes data, divides it into variable-sized chunks, and sends only new, unique chunks to the central Avamar server. This drastically reduces the amount of data transmitted over the slow WAN links, making it ideal for Remote Office/Branch Office (ROBO) scenarios.

  4. Question 4

    Multiple answers

    A new Avamar Virtual Edition (AVE) v19.4 instance is being deployed on VMware vSphere. The implementation engineer needs to ensure optimal performance and stability. Which two of the following are mandatory prerequisites for the virtual machine's storage? (Select TWO)

    Answer and explanation

    Correct answers: A, C

    Dell mandates the use of Thick Provision Eager Zeroed for AVE virtual disks to guarantee performance. This format pre-allocates all disk space and zeroes it out upon creation, which eliminates I/O overhead associated with on-demand allocation and zeroing that occurs with other formats, preventing performance bottlenecks during heavy I/O operations like garbage collection.

    It is a best practice and strong recommendation to disable Storage I/O Control (SIOC) on the datastore where the AVE resides. SIOC can throttle I/O, which may interfere with Avamar's own I/O-intensive internal processes like checkpoints and garbage collection, leading to performance degradation and potential system instability.

  5. Question 5

    True or False: After adding a new data node to an existing Avamar Data Store Gen4T grid, a full data rebalancing process must be manually initiated by the administrator to distribute existing data to the new node.

    Answer and explanation

    Correct answer: A

    False. After a new node is successfully added to an Avamar grid, the system automatically begins to rebalance the data. New data chunks are preferentially written to the new, emptier node. Over time, garbage collection and stripe re-silvering processes will gradually migrate and redistribute existing data across all nodes, including the new one. No manual intervention is required to start this process.

  6. Question 6

    A backup administrator at a retail company is configuring a new backup policy in the Avamar Web User Interface (AUI) for a group of Microsoft SQL servers. The requirement is to perform full backups weekly and log backups every hour, with logs retained for 14 days and fulls retained for 30 days. How should this be configured in a single policy?

    Answer and explanation

    Correct answer: A

    The Avamar policy framework is designed to handle this scenario efficiently. A single policy can contain multiple schedules, each with its own backup type (e.g., full, incremental, log), frequency, and retention period. This allows for the complete protection scheme for an application like SQL Server to be managed centrally within one policy.

  7. Question 7

    A hospital needs to implement a disaster recovery solution for their Avamar grid. The primary site has an ADS Gen4T, and the DR site will also have an ADS Gen4T. The RPO must be less than 4 hours, and the solution must be managed within the AUI. Which Avamar feature should be implemented?

    Answer and explanation

    Correct answer: A

    Standard asynchronous replication is Avamar's native feature for replicating backup data from a source grid to a destination grid. It can be scheduled to run frequently (e.g., every hour or more), easily meeting the RPO of less than 4 hours. The entire configuration and monitoring process is handled within the Avamar Web User Interface (AUI).

  8. Question 8

    The utility node in an Avamar Data Store grid is responsible for which of the following core functions?

    Answer and explanation

    Correct answer: C

    The utility node is the brain of the Avamar grid. It hosts critical services like the Management Console Server (MCS), provides the web UI, coordinates all maintenance tasks (checkpoints, garbage collection, HFS checks), manages metadata, and serves as the central point of administration.

  9. Question 9

    A deployment engineer is performing an initial physical installation of a multi-node Avamar Data Store Gen4T. After racking and cabling the hardware, what is the immediate next step before powering on the system for the first time?

    Answer and explanation

    Correct answer: A

    Before powering on the ADS nodes, it is critical to verify that the customer's network switches are correctly configured. This includes ensuring the correct VLANs are assigned to the ports, and that speed and duplex settings are correctly configured (typically auto-negotiate, but must match requirements). Incorrect network settings are a primary cause of installation failures, and verifying them beforehand prevents lengthy troubleshooting.

  10. Question 10

    An administrator is using the Avamar Fitness Analyzer tool to evaluate the health and performance of their Avamar grid. Which type of information is primarily gathered and analyzed by this tool?

    Answer and explanation

    Correct answer: A

    The Avamar Fitness Analyzer is a script-based tool that collects a comprehensive set of historical data from the Avamar server. This includes system logs, performance statistics (CPU, memory, I/O), capacity utilization trends, and configuration data. It then analyzes this information to produce a detailed report on the system's health, identify potential issues, and provide recommendations for optimization.