ElasticSearch Professional Standards & Competencies 3

Question 1

Which Elasticsearch practice demonstrates competency in maintaining cluster health proactively?

Accepted Answer

Setting up Watcher alerts or Kibana alerting rules on key health metrics

Answer

Proactive monitoring with automated alerting on metrics like disk usage, JVM heap, and shard counts is a mark of operational competency.

Question 2

What is the professional standard for managing Elasticsearch credentials used by application services?

Accepted Answer

Store credentials in a secrets manager and rotate them on a defined schedule

Answer

Industry-standard credential hygiene requires using a secrets manager and scheduled rotation to limit the blast radius of a credential compromise.

Question 3

An Elasticsearch professional is asked to reduce search latency. Which competency-driven approach should be used FIRST?

Accepted Answer

Profile queries with the Profile API to identify bottlenecks before making changes

Answer

The Profile API reveals query execution details at the shard level, enabling data-driven optimization rather than speculative hardware spending.

Question 4

When performing a major Elasticsearch version upgrade in a professional environment, what is the recommended rollback strategy?

Accepted Answer

Take a full snapshot before the upgrade so the cluster can be restored if needed

Answer

A verified snapshot taken before upgrading provides a restore point, satisfying change management and business continuity requirements.

Question 5

A junior engineer asks why replica shards are required in a production Elasticsearch cluster. What is the professional explanation?

Accepted Answer

Replicas provide high availability and increase read throughput by serving parallel search requests

Answer

Replica shards provide fault tolerance (the cluster remains green if a node fails) and scale read throughput by allowing searches to be served from any shard copy.

ElasticSearch Practice Test

ElasticSearch Practice Test

ElasticSearch Professional Standards & Competencies 3