Elastic Engineer Certification Study Notes

(based on the breakdown here: https://www.elastic.co/training/elastic-certified-engineer-exam) Elastic Certified Engineer is based on 7.13 as of June 29, 2022 according to https://www.elastic.co/training/certification/faq Here is a link to the documentation for that version: https://www.elastic.co/guide/en/elasticsearch/reference/7.13/index.html

Data Management

• Define an index that satisfies a given set of requirements
  • Index Modules
• Use the Data Visualizer to upload a text file into Elasticsearch
  • Upload Data Kibana
• Define and use an index template for a given pattern that satisfies a given set of requirements
  • Index Templates
• Define and use a dynamic template that satisfies a given set of requirements
  • Dynamic Templates
• Define an Index Lifecycle Management policy for a time-series index
  • Index Lifecycle Management
• Define an index template that creates a new data stream
  • Data Stream Index Template Step

Searching Data

• Write and execute a search query for terms and/or phrases in one or more fields of an index
  • Search Your Data
• Write and execute a search query that is a Boolean combination of multiple queries and filters
  • Boolean Compound Query
• Write an asynchronous search
  • Async Search
• Write and execute metric and bucket aggregations
  • Metric Aggregations
  • Bucket Aggregations
• Write and execute aggregations that contain sub-aggregations
  • Pipeline Aggregations
• Write and execute a query that searches across multiple clusters
  • Cross-cluster Search
• Write and execute a search that utilizes a runtime field
  • Runtime Search Request

Developing Search Applications

• Highlight the search terms in the response of a query
  • Highlighting
• Sort the results of a query by a given set of requirements
  • Sort Search Results
• Implement pagination of the results of a search query
  • Paginate Search Results
• Define and use index aliases
  • Add Index Alias
• Define and use a search template
  • Search Templates

Data Processing

• Define a mapping that satisfies a given set of requirements
  • Mapping
• Define and use a custom analyzer that satisfies a given set of requirements
  • Custom Analyzer
• Define and use multi-fields with different data types and/or analyzers
  • Multi-fields
• Use the Reindex API and Update By Query API to reindex and/or update documents
  • Reindex API
  • Update By Query API
• Define and use an ingest pipeline that satisfies a given set of requirements, including the use of Painless to modify documents
  • Ingest
• Configure an index so that it properly maintains the relationships of nested arrays of objects
  • Nested Field Type

Cluster Management

• Diagnose shard issues and repair a cluster's health
  • Red or Yellow Cluster Status
• Backup and restore a cluster and/or specific indices
  • Snapshot and Restore
• Configure a snapshot to be searchable
  • How Searchable Snapshots Work
  • Mount Snapshot API
• Configure a cluster for cross-cluster search
  • Cross-cluster Search
• Implement cross-cluster replication
  • Cross-cluster Replication
• Define role-based access control using Elasticsearch Security
  • Authorization