CCNA Deployment Architecture And Clustering Questions

MCQhard

If you need to move a bucket from one peer to another in an indexer cluster manually, how should you proceed?

A.Edit the bucket.json file on the peer

B.Use the Cluster Master to trigger a rebalance

C.Delete the bucket directory from the peer

D.Use the 'mv' command on the filesystem

AnswerB

The CM handles data movement automatically.

Why this answer

You should not move buckets manually; the CM manages bucket placement. If you need to remove a node, you use the proper removal command, which triggers the CM to migrate the data.

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MCQmedium

A search head cluster is currently running in a degraded state because the 'captain' has failed. What is the expected behavior?

A.The cluster stops processing all searches

B.The cluster automatically reverts to standalone mode

C.A new captain is elected automatically

D.Manual intervention is required to elect a new captain

AnswerC

The SHC is designed to be self-healing.

Why this answer

In an SHC, if the captain fails, the remaining members will automatically perform an election to choose a new captain, allowing the cluster to continue operating.

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MCQeasy

When configuring a Search Head Cluster, what is the purpose of the 'replication_factor' setting in server.conf?

A.To limit the number of users

B.To specify the number of search nodes in the cluster

C.To balance the search load across nodes

D.To define the number of copies of search artifacts

AnswerD

This ensures configuration redundancy among search heads.

Why this answer

In an SHC, the replication_factor defines how many copies of the search-related configurations are replicated across members.

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MCQhard

You want to move an indexer peer to a different site in an existing multisite cluster. What is the procedure to ensure the cluster recognizes the new site mapping?

A.Run a rebalance command on the CM

B.Change the site value in server.conf and restart the indexer

C.Delete the indexer and re-add it

D.Modify the indexer's hostname

AnswerB

This is the correct way to reassign a site tag.

Why this answer

You must update the 'site' parameter in server.conf and restart the indexer; the CM will then recognize the new site mapping.

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MCQmedium

You are troubleshooting a Search Head Cluster where a member node cannot join the cluster. Which log file on the node is the most useful for diagnosing the communication issue?

A.web_access.log

B.audit.log

C.splunkd.log

D.metrics.log

AnswerC

This is the primary log for troubleshooting SHC connectivity.

Why this answer

The 'splunkd.log' file contains detailed information about search head cluster communication, heartbeat, and member joining processes.

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MCQeasy

When planning a deployment, which component is required to act as the primary communication hub for managing configuration bundles in an Indexer Cluster?

A.Cluster Master

B.License Master

C.Deployment Server

D.Search Head

AnswerA

The CM is responsible for distributing configuration bundles to peers.

Why this answer

The Cluster Master (CM) manages the configuration bundles that are pushed to all indexer peers in the cluster.

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MCQmedium

When implementing a multisite indexer cluster, what happens if the cluster master becomes unreachable for a short duration?

A.All indexing stops immediately

B.Search heads stop returning results

C.Data replication across sites is forced immediately

D.Indexer peers continue to accept and index data

AnswerD

Peers maintain local autonomy for data ingestion during CM downtime.

Why this answer

In an indexer cluster, search heads and indexer peers can continue to operate and process data even if the CM is offline, though bucket replication might be paused.

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MCQmedium

You are tasked with upgrading an Indexer Cluster. Which order of operations is recommended by Splunk best practices?

A.Upgrade the Cluster Master first, then the indexer peers

B.Upgrade the search heads first

C.Upgrade all components simultaneously

D.Upgrade the indexer peers first, then the Cluster Master

AnswerA

The CM should always be at the same or higher version than the peers.

Why this answer

You should always upgrade the Cluster Master first to ensure it can manage the upgraded peer nodes.

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MCQeasy

Which component in an Indexer Cluster is responsible for assigning buckets to peers?

A.The Search Head

B.The indexer peer itself

C.The Deployment Server

D.The Cluster Master

AnswerD

The CM maintains the bucket location map.

Why this answer

The Cluster Master (CM) manages the mapping of buckets to peer nodes.

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MCQmedium

When configuring a Search Head Cluster, what does the 'captain' role do that other members do not?

A.It acts as the primary user interface node

B.It manages the cluster membership and configuration replication

C.It stores all the search results

D.It performs all the searches for the cluster

AnswerB

The captain acts as the master for the cluster.

Why this answer

The captain is responsible for coordinating the cluster, including replication management, job scheduling, and configuration updates.

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MCQmedium

When configuring a Search Head Cluster, what is the purpose of the 'deployer'?

A.To coordinate the election of the captain

B.To manage the replication of search configurations

C.To act as a load balancer for users

D.To store the search results for the cluster

AnswerB

The deployer pushes configuration updates to all SHC members.

Why this answer

The deployer is used to distribute configuration bundles (apps) to all search heads in the cluster.

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MCQeasy

In a multisite indexer cluster, what does the 'site' designation in server.conf specifically control?

A.The load balancing algorithm

B.The replication policy and bucket placement

C.The user access rights

D.The search head affinity

AnswerB

Site tags drive the multisite bucket replication logic.

Why this answer

The site designation determines which data replication policies are applied to the bucket copies based on the physical location of the indexer.

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MCQmedium

When configuring a Search Head Cluster, what is the best practice for managing the 'shcluster-bundle' directory?

A.Version control the bundle in a separate directory

B.Delete it after every deployment

C.Keep it in the /opt/splunk/etc/system/local directory

D.Automatically sync it to the Cluster Master

AnswerA

Version control is the standard practice for managing configurations.

Why this answer

The 'shcluster-bundle' directory should be kept in a version control system (like Git) to ensure configuration changes can be tracked and reverted.

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MCQhard

What is the primary function of the 'search_factor' in an indexer cluster?

A.The number of searchable copies of each bucket

B.The maximum number of concurrent searches

C.The number of indexer peers in the cluster

D.The number of search heads allowed in the cluster

AnswerA

Search factor determines availability of data for searches.

Why this answer

The search_factor dictates how many copies of the searchable data are maintained in the cluster to ensure high availability for search queries.

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MCQeasy

In an Indexer Cluster, which component stores the 'bucket' index files?

A.Search Head

B.Indexer Peer

C.Cluster Master

D.Deployment Server

AnswerB

Indexers store the actual data buckets.

Why this answer

The indexer peers are the nodes that perform the indexing and store the data in buckets.

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Multi-Selectmedium

Which TWO are common causes of 'Search Head Cluster' configuration replication failures?

Select 2 answers

A.Incorrect pass4SymmKey on one of the nodes

B.Too many concurrent searches

C.Incorrect license master configuration

D.Mismatch in server names

E.Network firewall blocking port 8089

AnswersA, E

Breaks authentication.

Why this answer

Authentication issues and connectivity problems are the most common reasons replication fails between cluster members.

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MCQmedium

You are configuring a Search Head Cluster and need to ensure that local user configurations are not overwritten by cluster-wide bundles. What is the correct way to handle these local configurations?

A.Use the local/ directory for configuration files that should not be replicated

B.Move files to the var/run directory

C.Set the configuration to immutable in server.conf

D.Use the shcluster/ directory

AnswerA

The local directory is specifically ignored by the SHC replication mechanism.

Why this answer

Local configurations should be placed in the 'local' directory of the application, which is ignored by the SHC replication process for cluster-wide bundles.

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MCQmedium

A new indexer is added to a cluster. How does the cluster handle the historical data that already exists on other indexers?

A.The new node only receives new data

B.The cluster forces a reindex of all historical data

C.The cluster redistributes buckets only if necessary to meet factors

D.All historical data is immediately copied to the new node

AnswerC

The CM determines if buckets need to be moved to the new node.

Why this answer

Existing data is not automatically replicated to the new node unless it is required to satisfy the replication factor or search factor settings.

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MCQmedium

You are designing an Indexer Cluster with three sites. To ensure data availability during a site failure, you have configured multisite replication. Which setting must be explicitly defined in server.conf on the cluster master to ensure that buckets are replicated across sites according to your policy?

A.replication_factor

B.multisite_replication_factor

C.site_replication_policy

D.cluster_replication_mode

AnswerB

This setting defines the specific bucket replication requirements for multisite deployments.

Why this answer

The multisite_replication_factor in server.conf determines how many copies of a bucket are kept and across which sites, which is essential for multisite cluster data integrity.

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MCQeasy

Which component in Splunk is required to be the central point for managing licenses in a clustered environment?

A.The License Master

B.The Deployment Server

C.The Search Head

D.The Cluster Master

AnswerA

The LM manages all license entitlements.

Why this answer

The License Master (LM) is the central authority for all license entitlements in a cluster.

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MCQmedium

When adding a new indexer to a multisite cluster, which attribute must be correctly set in the configuration before joining the cluster?

A.The indexer's role

B.The license server path

C.The search head affinity index

D.The site assignment

AnswerD

Critical for multisite replication logic.

Why this answer

The site attribute must be configured to ensure the CM knows where to place the new node within the multisite replication scheme.

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MCQeasy

Which of the following is a key advantage of using a Search Head Cluster over a single search head?

A.Faster indexing performance

B.Reduced license costs

C.Smaller storage footprint

D.High availability of search and user interface

AnswerD

SHC provides redundancy for user searches and UI.

Why this answer

High availability is the primary design goal for SHC, allowing queries to be answered even if one node fails.

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MCQhard

When designing a large-scale multisite cluster, which factor most significantly impacts the search performance when running searches across all sites?

A.The number of buckets per indexer

B.The number of users

C.Network latency between sites

D.The number of search heads

AnswerC

Latency directly affects the speed of distributed search results.

Why this answer

Cross-site network latency is the biggest bottleneck for search performance in multisite indexer clusters.

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Multi-Selectmedium

Which TWO of the following are true regarding the Splunk 'Deployment Server' (DS) in a clustered environment?

Select 2 answers

A.The DS is a mandatory component for indexer clusters

B.The DS should be used to update indexer cluster configurations

C.The DS is used to distribute apps to indexers

D.The DS manages the search head cluster captain election

E.The DS is used to distribute apps to search heads

AnswersC, E

Yes, for general apps, though not the cluster-wide bundles.

Why this answer

The DS manages apps for all components, but for indexer clusters, the CM manages the indexer-specific configuration bundles.

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MCQmedium

You are deploying a Search Head Cluster across multiple data centers. Which feature allows you to prioritize searches performed by users in the same site as the indexers?

A.Site-aware routing

B.Data locality

C.Load balancing

D.Search affinity

AnswerD

Search affinity minimizes cross-site search traffic.

Why this answer

Search affinity allows you to configure search heads to prioritize indexers within their own site to minimize cross-site traffic.

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MCQeasy

What is the primary function of the 'Cluster Master' in an Indexer Cluster?

A.To handle incoming data from universal forwarders

B.To manage the indexer cluster's configuration and bucket state

C.To serve the Splunk user interface

D.To search across all indexers

AnswerB

This is the primary role of the CM.

Why this answer

The CM coordinates the cluster, including bucket replication, managing peers, and distributing configuration.

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MCQeasy

What must be installed on all Search Head Cluster members before they can join the cluster?

A.A shared SSL certificate

B.A dedicated storage partition

C.A specialized Splunk App

D.The same security key

AnswerD

The pass4SymmKey must match across all members.

Why this answer

All members must have the same security key (configured in server.conf) to communicate securely within the cluster.

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MCQmedium

You notice that your indexer cluster has buckets in a 'Searchable' state but some are marked as 'Streaming'. What does this indicate?

A.The bucket is corrupt

B.The indexer is performing a hot-to-warm rollover

C.Bucket replication is in progress to other peers

D.The data is being archived to cold storage

AnswerC

Streaming indicates that the bucket is being synced across the cluster.

Why this answer

Streaming buckets are typically related to the replication of data from a primary to a secondary node; if they stay in this state, it may indicate replication lag.

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MCQmedium

In an indexer cluster, what happens if the cluster master is permanently lost and you do not have a backup of the 'master-apps' directory?

A.The data is permanently lost

B.The indexers continue to work normally indefinitely

C.You will be unable to distribute new configuration updates

D.You can restore the configuration from the peer nodes

AnswerC

The master-apps folder is the central repository for bundle distribution.

Why this answer

The master-apps directory contains the source of truth for the cluster configuration; without it, the cluster configuration cannot be easily managed or restored to a new master.

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MCQhard

In an indexer cluster, why might you use the 'splunk list cluster-peers' command?

A.To remove a node from the cluster

B.To update the license configuration

C.To verify the synchronization status of all indexer peers

D.To force a cluster rebalance

AnswerC

It displays peer status and health.

Why this answer

This command provides a status summary of all peers in the cluster, helping you verify that the cluster is healthy and all nodes are synchronized.

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MCQhard

A customer needs to decommission a single indexer peer from an Indexer Cluster without losing data. Which step is mandatory to ensure all data is safely migrated to other peers?

A.Force a cluster bundle update

B.Delete the indexer directory on the CM

C.Simply shut down the indexer service

D.Run 'splunk remove cluster-peers' on the CM

AnswerD

This command triggers the cluster to replicate data off the node.

Why this answer

Putting the indexer into 'maintenance_mode' or using the 'splunk remove cluster-peers' command allows the cluster to redistribute buckets.

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Multi-Selecthard

Which THREE features are provided by Splunk's multisite Indexer Clustering?

Select 3 answers

A.Site-specific bucket replication policies

B.Automatic load balancing across sites

C.Site-aware search affinity

D.Automatic user role migration between sites

E.Data availability in the event of site failure

AnswersA, C, E

Allows customized policies per site.

Why this answer

Multisite clusters provide site-aware search affinity, disaster recovery through site-specific replication, and high data availability.

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MCQhard

A Search Head Cluster (SHC) is experiencing frequent 'captain election' issues during high-load periods. Upon reviewing the logs, you notice network latency spikes between nodes. Which parameter in the SHC configuration should be adjusted to allow for more tolerance in node communication?

A.heartbeat_timeout

B.election_timeout

C.replication_factor

D.search_timeout

AnswerA

This is the primary setting to handle transient network issues in SHC.

Why this answer

The heartbeat_timeout setting in the SHC configuration controls how long a node can go without a heartbeat before it is considered down, which can be increased to mitigate network latency issues.

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Multi-Selecthard

Which THREE conditions must be met for an indexer to be successfully added to an Indexer Cluster?

Select 3 answers

A.The indexer must have network connectivity to the CM

B.The indexer must have the same security key (pass4SymmKey) as the CM

C.The indexer must be running on the same OS version as the CM

D.The indexer must be designated as a search head

E.The indexer must have zero existing buckets

AnswersA, B, E

Required for registration.

Why this answer

The indexer needs the same pass4SymmKey, network access to the CM, and to be in an uninitialized state.

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Multi-Selecthard

Which THREE factors should be considered when planning the hardware requirements for a multisite indexer cluster?

Select 3 answers

A.Disk I/O throughput

B.The color of the server chassis

C.Inter-site network latency and bandwidth

D.The total number of indexer peers

E.The number of concurrent web users

AnswersA, C, D

Essential for high-volume indexing.

Why this answer

Disk I/O, network bandwidth between sites, and CPU capacity for concurrent indexing/searching are all critical for cluster stability.

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