SPLK-2002 Data Lifecycle Management — Timed 15 Questions

Question 1

A Splunk architect notices that Data Model Acceleration summaries are consuming excessive disk space. Which configuration setting in datamodels.conf should be adjusted to limit the storage impact of these summaries?

15 minute time limit — choose an answer to begin.

Accepted Answer

acceleration.max_time. acceleration.max_time defines the retention period for the accelerated summaries.

Answer

acceleration.earliest_time

Answer

acceleration.backfill

Answer

acceleration.cron_schedule

Question 2

A large-scale Splunk deployment is experiencing 'bucket rolling' latency. Upon investigation, you determine that the indexer is waiting for the indexer cluster manager to acknowledge the bucket status. Which indexer clustering setting directly impacts the speed of bucket replication during the rolling process?

Accepted Answer

max_replication_streams. max_replication_streams controls how many concurrent replication streams an indexer can open when copying bucket data to peer indexers during bucket rolling and replication. Raising this value increases parallelism and speeds up replication, directly reducing the time the cluster manager waits to acknowledge bucket status. It is the clustering setting that most directly governs replication throughput during rolling.

Answer

search_factor

Answer

service_interval

Answer

heartbeat_timeout

Question 3

In a multisite indexer cluster, a bucket with replication factor 3 has its primary copy in Site 1 and secondary copies in Site 2. A network partition occurs. Which setting determines if the indexer will accept new data if it cannot reach the Site 2 indexers?

Accepted Answer

site_replication_factor. site_replication_factor determines the behavior for bucket replication across sites.

Answer

min_replication_factor

Answer

search_factor_per_site

Answer

cluster_replication_queue

Question 4

When designing an index strategy for high-frequency search performance, which component of the bucket lifecycle has the highest impact on disk I/O performance?

Accepted Answer

Hot/Warm buckets. Hot and Warm buckets are actively being written to and searched, so they reside on fast storage and generate the highest disk I/O. Their constant read/write activity makes them the most performance-critical part of the bucket lifecycle. Cold buckets are read-only and less frequently accessed, while summary and frozen buckets have minimal I/O impact.

Answer

Summary buckets

Answer

Cold buckets

Answer

Frozen buckets

Question 5

You are troubleshooting a performance issue where cold buckets are being moved to frozen storage too slowly. You find that the indexer is saturated with I/O operations. Which setting can be used to throttle the migration of cold buckets to frozen to improve system responsiveness?

Accepted Answer

coldToFrozenScript. There is no native 'throttle' setting for bucket freezing; however, the correct architectural approach for bucket lifecycle management often involves offloading the freezing process or managing throughput through indexer settings.

Answer

maxHotBuckets

Answer

rotatePeriodInSecs

Answer

maxTotalDataSizeMB

Question 6

An architect needs to implement a data retention policy that keeps data for 30 days in hot/warm and then moves it to cold storage for 60 days before deletion. Which attribute in indexes.conf controls the transition from warm to cold?

Accepted Answer

maxWarmDBCount. The homePath.maxDataSize is for sizing, but the movement of buckets is controlled by the MaxHotSpanSecs or more directly the frozenTimePeriodInSecs for deletion, while warm/cold transition is determined by the maxWarmDBCount or maxTotalDataSizeMB.

Answer

frozenTimePeriodInSecs

Answer

maxHotSpanSecs

Answer

coldPath.maxDataSizeMB

Question 7

Which path is used to define where Splunk stores the actual indexed data for a specific index?

Accepted Answer

homePath. The homePath in Splunk's indexes.conf defines the directory where the indexer stores the hot and warm buckets for a specific index. These buckets contain the most recent, searchable data. The homePath is the primary storage location for an index's data, making A the correct answer.

Answer

coldPath

Answer

frozenPath

Answer

thawedPath

Question 8

You are configuring Data Model Acceleration on a heavy forwarder. Why is this not a recommended architectural practice?

Accepted Answer

Acceleration requires the indexer components for summary storage. Data Model Acceleration (DMA) works by pre-computing and storing summarized results in TSIDX (time-series index) files, which are written to indexer buckets. Heavy forwarders lack the indexer storage layer and bucket management components needed to persist these summaries, so DMA cannot function on them. Splunk officially supports DMA only on indexers and search heads (with the appropriate search head clustering or indexer clustering configuration).

Answer

Heavy forwarders do not support accelerated datamodels

Answer

The license will be consumed incorrectly

Answer

CPU resources on the forwarder are too high

Question 9

Which command would you use to verify the current bucket status and size on a Splunk indexer?

Accepted Answer

splunk list buckets. splunk cmd splunkd bucket-info is a valid tool, but standard CLI is 'splunk show-buckets' or inspecting the filesystem.

Answer

splunk inspect data

Answer

splunk show-indexes

Answer

splunk check-storage

Question 10

What is the consequence of setting 'maxDataSize' to 'auto_high_volume' for an index?

Accepted Answer

It sets the bucket size to 10GB. The 'maxDataSize' setting in indexes.conf controls the maximum size a bucket can reach before it rolls from hot to warm. Setting it to 'auto_high_volume' tells Splunk to use a predefined bucket size of 10GB, which is optimized for high-volume indexing environments. This is a special keyword rather than a numeric value, and Splunk internally maps it to 10GB.

Answer

It disables data compression

Answer

It automatically enables bucket replication

Answer

It forces buckets to roll every 1 hour

Question 11

If you have a search head cluster and you want to accelerate a data model, where are the resulting summary files stored?

Accepted Answer

On the indexers. When a data model is accelerated in a search head cluster, the resulting summary files (tsidx files) are stored on the indexers, not on the search head members. This is because the acceleration search runs across the indexers, and the summary data is written back to the indexers' buckets so that subsequent accelerated searches can read the precomputed results directly from the indexers. This design distributes the storage and retrieval load across the indexer tier.

Answer

In the KV Store

Answer

On each search head member

Answer

On the deployer node

Question 12

Which setting in 'indexes.conf' controls the total amount of disk space occupied by the 'warm' buckets for a specific index?

Accepted Answer

maxWarmDBCount. maxWarmDBCount or maxTotalDataSizeMB are the standard ways to limit bucket growth.

Answer

maxDataSize

Answer

coldPath.maxDataSizeMB

Answer

maxHotSpanSecs

Question 13

When planning storage, which file type within an index bucket contains the actual raw log data?

Accepted Answer

journal.gz. The journal.gz file contains the compressed raw data.

Answer

rawdata

Answer

tsidx

Answer