Splunk SPLK-2002 Practice Test - Questions Answers, Page 11

Searching for closed_txn=0 in this search filters results to situations where Splunk was started, but not stopped. This means that the transaction was not completed, and Splunk crashed before it could finish the pipelines.The closed_txn field is added by the transaction command, and it indicates whether the transaction was closed by an event that matches the endswith condition1.A value of 0 means that the transaction was not closed, and a value of 1 means that the transaction was closed1. Therefore, option D is the correct answer, and options A, B, and C are incorrect.

1: transaction command overview

The master node distributes configuration bundles to peer nodes in theslave-appsdirectory under$SPLUNK_HOME/etc. The configuration bundle method is the only supported method for managing common configurations and app deployment across the set of peers.It ensures that all peers use the same versions of these files1.Bundles typically contain a subset of files (configuration files and assets) from$SPLUNK_HOME/etc/system,$SPLUNK_HOME/etc/apps, and$SPLUNK_HOME/etc/users2.The process of distributing knowledge bundles means that peers by default receive nearly the entire contents of the search head's apps3.

According to the Splunk documentation1, metrics.log is a file that contains various metrics data for reviewing product behavior, such as pipeline, queue, thruput, and tcpout_connections.Metrics.log is stored in the _internal index by default2, which is a special index that contains internal logs and metrics for Splunk Enterprise. The other options are false because:

main is the default index for user data, not internal data3.

_telemetry is an index that contains data collected by the Splunk Telemetry feature, which sends anonymous usage and performance data to Splunk4.

_introspection is an index that contains data collected by the Splunk Monitoring Console, which monitors the health and performance of Splunk components.

A single-site indexer cluster is a group of Splunk Enterprise instances that index and replicate data across the cluster1.A bucket is a directory that contains indexed data, along with metadata and other information2.A replication factor is the number of copies of each bucket that the cluster maintains1.A search factor is the number of searchable copies of each bucket that the cluster maintains1.A searchable copy is a copy that contains both the raw data and the index files3.A search head is a Splunk Enterprise instance that coordinates the search activities across the peer nodes1.

Option D is the correct answer because it reflects the definitions of replication factor and search factor. The cluster will ensure that there are at least three copies of each bucket, one on each peer node, to satisfy the replication factor of 3. The cluster will also ensure that there are at least two searchable copies of each bucket, one primary and one searchable, to satisfy the search factor of 2.The primary copy is the one that the search head uses to run searches, and the searchable copy is the one that can be promoted to primary if the original primary copy becomes unavailable3.

Option A is incorrect because it confuses the replication factor and the search factor. The cluster will ensure there are at least three copies of each bucket, not two, to meet the replication factor of 3. The cluster will ensure there are at least two copies of searchable metadata, not three, to meet the search factor of 2.

Option B is incorrect because it uses the wrong terms. The cluster will ensure there are at least, not at most, three copies of each bucket, to meet the replication factor of 3. The cluster will ensure there are at least, not at most, two copies of searchable metadata, to meet the search factor of 2.

Option C is incorrect because it has nothing to do with the replication factor or the search factor. The cluster does not limit the number of search heads that can access the bucket at the same time.The search head can search across multiple clusters, and the cluster can serve multiple search heads1.

1:The basics of indexer cluster architecture - Splunk Documentation2:About buckets - Splunk Documentation3:Search factor - Splunk Documentation

The correct configuration attribute to set in server.conf on the cluster manager in a single-site indexer cluster ismaster_uri.This attribute specifies the URI of the cluster manager, which is required for the peer nodes and search heads to communicate with it1. The other attributes are not required for a single-site indexer cluster, but they are used for a multisite indexer cluster.The site attribute defines the site name for each node in a multisite indexer cluster2.The replication_factor attribute defines the number of copies of each bucket to maintain across the entire multisite indexer cluster3.The site_replication_factor attribute defines the number of copies of each bucket to maintain across each site in a multisite indexer cluster4. Therefore, option A is the correct answer, and options B, C, and D are incorrect.

1: Configure the cluster manager2: Configure the site attribute3: Configure the replication factor4: Configure the site replication factor

KV Store is a feature of Splunk Enterprise that allows apps to store and retrieve data within the context of an app1.

KV Store resides on search heads and replicates data across the members of a search head cluster1.

KV Store resiliency refers to the ability of KV Store to maintain data availability and consistency in the event of failures or disruptions2.

One of the factors that affects KV Store resiliency is the network latency between search heads, which can impact the speed and reliability of data replication2.

Decreasing latency between search heads can improve KV Store resiliency by reducing the chances of data loss, inconsistency, or corruption2.

The other options are not directly related to KV Store resiliency.Faster storage, indexer CPU and memory, and Operations Log size may affect other aspects of Splunk performance, but not KV Store345.

The correct Splunk deployment to have the recommended minimum components for a high-availability search head cluster is3 search heads, 1 deployer, 3 indexers.This configuration ensures that the search head cluster has at least three members, which is the minimum number required for a quorum and failover1.The deployer is a separate instance that manages the configuration updates for the search head cluster2.The indexers are the nodes that store and index the data, and having at least three of them provides redundancy and load balancing3. The other options are not recommended, as they either have less than three search heads or less than three indexers, which reduces the availability and reliability of the cluster. Therefore, option B is the correct answer, and options A, C, and D are incorrect.

1: About search head clusters2: Use the deployer to distribute apps and configuration updates3: About indexer clusters and index replication

To ensure that high-velocity sources will not have forwarding delays to the indexers, the default limit for maxKBps in limits.conf should be increased. This parameter controls the maximum bandwidth that a forwarder can use to send data to the indexers. By default, it is set to 256 KBps, which may not be sufficient for high-volume data sources. Increasing this limit can reduce the forwarding latency and improve the performance of the forwarders. However, this should be done with caution, as it may affect the network bandwidth and the indexer load. Option B is the correct answer. Option A is incorrect because the sessionTimeout parameter in server.conf controls the duration of a TCP connection between a forwarder and an indexer, not the bandwidth limit. Option C is incorrect because the forceTimebasedAutoLB parameter in outputs.conf controls the frequency of load balancing among the indexers, not the bandwidth limit.Option D is incorrect because the phoneHomelntervallnSecs parameter in deploymentclient.conf controls the interval at which a forwarder contacts the deployment server, not the bandwidth limit12

1: https://docs.splunk.com/Documentation/Splunk/9.1.2/Admin/Limitsconf#limits.conf.spec2: https://docs.splunk.com/Documentation/Splunk/9.1.2/Forwarding/Routeandfilterdatad#Set_the_maximum_bandwidth_usage_for_a_forwarder

According to the Splunk documentation1, the ''Unknown sid'' error message means that the search job associated with the link has expired or been deleted. The sid (search ID) is a unique identifier for each search job, and it is used to retrieve the results of the search. If the sid is not found, the search cannot be displayed. The other options are false because:

The users having insufficient permissions would result in a different error message, such as ''You do not have permission to view this page'' or 'You do not have permission to run this search'1.

An add-on needing to be updated would not affect the validity of the sid, unless the add-on changes the search syntax or the data source in a way that makes the search invalid or inaccessible1.

One or more indexers being down would not cause the ''Unknown sid'' error, as the sid is stored on the search head, not the indexers.However, it could cause other errors, such as ''Unable to distribute to peer'' or 'Search peer has the following message: not enough disk space'1.