Explore topic-wise InterviewSolutions in .

Apache Druid is a ______ ORIENTED DISTRIBUTED data store.
Choose the correct option from below list
(1)Graph
(2)COLUMN
(3)Key-Value
(4)Document

Answer:-(2)Column

Predict the output.
Hi {{name}}.
is USED with the CONTEXT variable:
var context = {
"name" : "< b>Jane Roe< /b>"
}
Choose the CORRECT option from below list
(1)Jane Roe without any style
(2)Nothing to display
(3)< b>Jane Roe< /b>
(4)< b>Jane Roe< /b>

Answer:-(3)< b>Jane Roe< /b>

A time range in Druid is CONSIDERED a _______.
Choose the correct option from below LIST
(1)Datasource
(2)SEGMENT
(3)CHUNK

Answer:-(3)Chunk

Which of the following are common application areas for Apache Druid?
Choose the correct option from below list
(1)Clickstream analytics
(2)NETWORK flow analytics
(3)All the options
(4)Digital MARKETING analytics
(5)Application performance metrics

Answer:-(3)All the options

Templates can CONTAIN HTML and TEXT, mixed with Handlebars expressions.
Choose the correct option from below LIST
(1)TRUE
(2)False

Answer:-(1)True

Choose the available queries in Apache Druid.
Choose the correct OPTION from below list
(1)All the options
(2)Aggregation Queries
(3)SEARCH Queries
(4)Metadata Queries

Answer:-(1)All the options

The __________ provides unified API gateway to the Druid BROKERS, overlords, and coordinators.
Choose the correct option from below LIST
(1)Overlord process
(2)Coordinator process
(3)Broker process
(4)Router process

Answer:-(4)Router process

What is the alternative to MERGE in Git?
Choose the CORRECT option from below list
(1)Rebase
(2)Fetch
(3)PULL
(4)Push

Answer:-(1)Rebase

The ___________ controls the flow of data to Druid.
Choose the CORRECT option from below LIST
(1)Broker PROCESS
(2)Overlord process
(3)Coordinator process
(4)Router process

Answer:-(2)Overlord process

Which of the following servers are USED in Druid for easy deployment?
Choose the correct option from below list
(1)Query Server
(2)All the OPTIONS
(3)Data Server
(4)MASTER Server

Answer:-(2)All the options

The __________ downloads segments from Deep Storage, and responds to queries about these segments.
Choose the CORRECT option from below list
(1)MiddleManager PROCESS
(2)Broker process
(3)Historical process
(4)ROUTER process

Answer:-(3)Historical process

_____are organized into TIME chunks.
Choose the correct OPTION from below list
(1)Columns
(2)Segments
(3)FILES
(4)FOLDERS
(5)None of the options

Answer:-(2)Segments

Which of the following servers in DRUID are responsible for PROVIDING endpoints?
Choose the correct option from below list
(1)Data Server
(2)Query Server
(3)Master Server
(4)All the options

Answer:-(2)Query Server

Select the two main parts to a Data Source Metadata query.
Choose the correct OPTION from below list
(1)context & queryType
(2)dataSource & context
(3)queryType & dataSource
(4)NONE of the options

Answer:-(3)queryType & dataSource

Datasources are RESPONSIBLE for storing data in Druid.
Choose the correct OPTION from below list
(1)False
(2)True

Answer:-(2)True

Select the correct statement in Apache Druid.
Choose the correct option from below list
(1)All the options
(2)Druid must have ENOUGH disk space available in deep storage and across the historical processes for the data you plan to load.
(3)Deep Storage ALSO called Shared FILE storage, is accessible by every Druid server.
(4)To respond to QUERIES, Historical processes do not read from deep storage.

Answer:-(1)All the options

Which processes manage data availability on the Server?
Choose the correct OPTION from below LIST
(1)MiddleManager
(2)OVERLORD
(3)Coordinator
(4)Broker

Answer:-(3)Coordinator

In Apache Druid , Select queries do not support pagination.
Choose the correct option from below LIST
(1)TRUE
(2)False

Answer:-(2)False

Which of the FOLLOWING statements is not correct in relation to GroupBy v1 and v2 strategies.
Choose the correct OPTION from below list
(1)The default strategy for a cluster is determined by the "druid.query.groupBy.defaultStrategy" runtime property on the Broker.
(2)GroupBy v1 controls resource usage USING a row-based limit (maxResults) whereas GroupBy v2 uses bytes-based limits.G
(3)GroupBy v2 supports using chunkPeriod to parallelize merging on the Broker whereas GroupBy v1 ignores chunkPeriod.

Answer:-(3)GroupBy v2 supports using chunkPeriod to parallelize merging on the Broker whereas GroupBy v1 ignores chunkPeriod.

Which of the following is the default GroupBy query strategy.
Choose the correct OPTION from below LIST
(1)v3
(2)v1
(3)v4
(4)V2

Answer:-(4)v2

The _____ MANAGES new data ingestion.
Choose the correct option from below list
(1)ROUTER process
(2)Overlord process
(3)MiddleManager process
(4)Coordinator process

Answer:-(3)MiddleManager process

Which of the FOLLOWING is a datasource TYPE in APACHE Druid?
Choose the correct option from below list
(1)Union data SOURCE
(2)All the options
(3)Query data source
(4)Table data source

Answer:-(2)All the options

Which of the following is the core element of a Druid INGESTION Spec?
Choose the CORRECT option from below LIST
(1)Time Column
(2)Datasource NAME
(3)dataSchema
(4)All the OPTIONS
(5)Parser

Answer:-(3)dataSchema

Denormalized data in Apache DRUID is ingested in _________ formats.
Choose the correct option from below LIST
(1)TSV
(2)All the Options
(3)JSON
(4)CSV

Answer:-(2)All the Options

Which of the following EXTERNAL DEPENDENCIES is used to backup and transfer data from DRUID PROCESSES in the BACKGROUND?
Choose the correct option from below list
(1)Zookeeper
(2)Deep storage
(3)Metadata storage
(4)All the options

Answer:-(2)Deep storage

The ____________ receives requests from OUTSIDE CUSTOMERS, and transmits these requests to DATA servers.
Choose the correct option from below list
(1)Coordinator process
(2)Broker process
(3)OVERLORD process
(4)Router process

Answer:-(2)Broker process

_____ is responsible for allocating segments to specific servers, and ensuring that segments are well BALANCED across Historicals.
Choose the CORRECT OPTION from below list
(1)Overlord PROCESS
(2)Broker process
(3)Coordinator process
(4)Router process

Answer:-(3)Coordinator process

Among the following options, which aggregation QUERY is the most flexible but has the poorest performance?
Choose the CORRECT OPTION from below list
(1)NONE of the options
(2)GroupBy
(3)Timeseries
(4)TopN

Answer:-(3)Timeseries

Zookeeper is used for _____.
CHOOSE the correct OPTION from below list
(1)leader ELECTION
(2)All the Options
(3)coordination and leader collection
(4)backup data
(5)coordination

Answer:-(3)coordination and leader collection

Which of the following concept in DRUID OPTIONALLY replaces dimensional VALUES with new values, enabling combined FUNCTIONALITY?
Choose the correct option from below list
(1)Lookups
(2)Both virtual columns and Lookups
(3)None of the OPTIONS
(4)Virtual Columns

Answer:-(1)Lookups

Which of the following GRANULARITY types are supported in APACHE Druid?
Choose the CORRECT option from below list
(1)ARBITRARY
(2)None of the options
(3)Uniform and Arbitrary
(4)Uniform

Answer:-(3)Uniform and Arbitrary

Which of the following is used to interpret INPUT data in DRUID?
Choose the correct OPTION from below list
(1)Datasource name
(2)Time Column
(3)dataSchema
(4)Parser

Answer:-(4)Parser

Which of the FOLLOWING query is not included in AGGREGATION query?
Choose the correct OPTION from below list
(1)Timeseries
(2)GroupBy
(3)TopN
(4)Time BOUNDARY

Answer:-(4)Time Boundary