ElasticSearch – Search Raptors Interview Question-Answer Part – 1

Q.1 For identification, a node is assigned with an ________.

       A. MMID

       B. Uniform Resource Locator

       C. Uniform Resource Indicator

       D. Universally Unique Identifier

Ans : MMID


Q.2 Elasticsearch is a/an ________.

       A. Search Engine

       B. Analytics Engine

       C. Both the options

       D. None of the options

Ans : Both the options


Q.3 What is an Index?

       A. Collection of types

       B. Collection of documents having similar characteristics

       C. Collection of documents having non-similar characteristics

       D. Collection of nodes

Ans : Collection of documents having similar characteristics


Q.4 Elasticsearch is based on _______ architecture and provides __________ endpoint.

       A. REST, API

       B. API, REST

       C. API, Modern

       D. Modern, API

Ans : REST, API


Q.5 What is the upper limit of an index that can be defined in a cluster?

       A. There is no upper limit

       B. 1000

       C. 99

       D. 10000

Ans : There is no upper limit


Q.6 Near-Real-Time means __________.

       A. Exactly at the same time

       B. Few minutes of wait time

       C. Slight time lag

Ans : Slight time lag


Q.7 A node is ___________.

       A. Machines having Elastic family

       B. A single server running the instance of Elasticsearch

       C. A group of clusters running the instance of Elasticsearch

       D. Servers combined together with instances of Elasticsearch

Ans : A single server running the instance of Elasticsearch


Q.8 A cluster is ____________.

       A. Servers connected with each other

       B. A collection of nodes

       C. Both the options

       D. None of the options

Ans : Both the options


Q.9 Replicas is a ___________

       A. Copy of the cluster

       B. Carbon copy of the data living in a shard

       C. Carbon copy of the Index

       D. Replacement of the Index

Ans : Carbon copy of the data living in a shard


Q.10 A Shard is the subdivision of the ____________

       A. Document

       B. Index

       C. Nodes

Ans : Index


Q.11 Can we use uppercase to describe an index name?

       A. Yes, we can

       B. No, we cannot

Ans : No, we cannot


Q.12 Elasticsearch ___________.

       A. Exposes complexity

       B. Hides complexity

Ans : Hides complexity


Q.13 Elasticsearch may have thousands of nodes.

       A. True

       B. False

Ans : True


Q.14 Elasticsearch is _____________.

       A. Partially scalable

       B. Highly scalable

Ans : Highly scalable


Q.15 Elasticsearch is built on the top of __________.

       A. Lucene

       B. Elastic

       C. Python

       D. Java

Ans : Lucene


Q.16 Elasticsearch uses _________ as the response.

       A. JSON objects

       B. XML objects

       C. Java objects

       D. Avro objects

Ans : JSON objects


Q.17 Who is the key person for the development of Elasticsearch?

       A. Ryan Dahl

       B. James Gosling

       C. Shay Banon

       D. Guido van Rossum

Ans : Shay Banon


Q.18 A document is a/an ________.

       A. JSON object

       B. JavaScript

       C. XML object

Ans : JSON object


Q.19 Is a single node cluster possible? If yes, what would be its default name?

       A. Yes, Elasticsearch

       B. No, not possible

       C. Yes, External

       D. None of the options

Ans : Yes, Elasticsearch


Q.20 _________ is the default name given to a cluster.

       A. Elastic

       B. External

       C. Elasticsearch1

       D. Elasticsearch

Ans : Elasticsearch


Q.21 You can delete an Index using ________.

       A. SUDO -XDEL ‘localhost:9200/aliens?pretty&pretty’

       B. curl -XDELETE ‘localhost:9200/aliens?pretty&pretty’

       C. curl -XDEL ‘localhost:9200/aliens?pretty&pretty’

Ans : curl -XDELETE ‘localhost:9200/aliens?pretty&pretty’


Q.22 Elasticsearch is schemaless.

       A. True

       B. False

Ans : True


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