Apache Nifi MCQ Interview Questions and Answers 2021
Apache NiFi is an open source software for automating and managing the data flow between systems. It is a powerful and reliable system to process and distribute data. Apache Nifi provides web-based User Interface to create, monitor, and control data flows. Apache Nifi has a highly configurable and modifiable data flow process to modify data at runtime.
1) Where does NiFi keep a record of the status of what it perceives about a given FlowFile that is active in the flow?
Pick the best answer from given options :
a) FlowFile Repository
b) Content Repository
c) Provenance Repository
d) All the options
Correct answer of the above question is : a) FlowFile Repository
2) ____________ is a set of processes and their associations which receive data through input ports and sends data through output ports.
Pick the best answer from given options :
a) All the options
b) Connection
c) Process Group
d) Flow Controller
Correct answer of the above question is : c) Process Group
3) ____________ is/are the linkage between processors.
Pick the best answer from given options :
a) Flow Controller
b) Connections
c) All the options
d) Process Group
Correct answer of the above question is : b) Connections
4) ____________ is considered as the mastermind of the operation.
Pick the best answer from given options :
a) Web Server
b) Extensions
c) All the options
d) Flow Controller
Correct answer of the above question is : d) Flow Controller
5) Apache NiFi has support for Multi-tenant Authorization.
Pick the best answer from given options :
a) False
b) True
Correct answer of the above question is : b) True
6) ____________ is a key feature of the NiFi Flow Management.
Pick the best answer from given options :
a) Flow Specific QoS
b) Guaranteed Delivery
c) Prioritized Queuing
d) All the options
Correct answer of the above question is : d) All the options
7) NiFi’s fundamental design concepts relate closely to the main ideas of Flow-based Programming (FBP).
Pick the best answer from given options :
a) False
b) True
Correct answer of the above question is : b) True
8) _____________ is an element of NiFi User Interface.
Pick the best answer from given options :
a) All the options
b) Status Bar
c) Components ToolBar
d) Global Menu
Correct answer of the above question is : a) All the options
9) Flow-based Programming defines applications using the metaphor of a "data factory".
Pick the best answer from given options :
a) True
b) False
Correct answer of the above question is : a) True
10) _________ is utilized to receive data that is not present in a particular Process Group from the processor.
Pick the best answer from given options :
a) Output Port
b) None of the options
c) All the options
d) Input Port
Correct answer of the above question is : d) Input Port
11) NiFi is designed to run in _________.
Pick the best answer from given options :
a) YARN Cluster
b) Cloud
c) Local Machine
d) All the options
Correct answer of the above question is : d) All the options
12) NiFi automatically _____________ the possible provenance data as objects flow into the system.
Pick the best answer from given options :
a) All the options
b) forms
c) indexes
d) records
Correct answer of the above question is : a) All the options
13) Which is the default HTTP Port for Apache NiFi?
Pick the best answer from given options :
a) 8082
b) 8081
c) 8080
d) 8084
Correct answer of the above question is : c) 8080
14) ____________ is a function of Processor in NiFi.
Pick the best answer from given options :
a) Publishing data to outside sources
b) Transforming, or extracting data from FlowFiles
c) All the options
d) Monitoring incoming data
Correct answer of the above question is : c) All the options
15) ____________ is a Universal Unique Identifier that identifies a particular FlowFile from another FlowFile in the system.
Pick the best answer from given options :
a) uname
b) user
c) uuid
d) All the options
Correct answer of the above question is : c) uuid
16) ____________ is the NiFi element that is utilized to monitor incoming data, pull data from outside sources, publish data to outside sources, and route, transform, or extract data from FlowFiles.
Pick the best answer from given options :
a) None of the options
b) Connection
c) Processor
d) Relationship
Correct answer of the above question is : c) Processor
17) Which among the following are the challenges of DataFlow?
Pick the best answer from given options :
a) System failure
b) All the options
c) Data access exceeds the capacity available for use
d) None of the options
Correct answer of the above question is : b) All the options
18) _____________ work/works in the background to provide analytical reports of what is occurring in the NiFi instance.
Pick the best answer from given options :
a) Controller Service
b) Funnel
c) Reporting Tasks
Correct answer of the above question is : c) Reporting Tasks
19) _______________ are the causes for compliance and security challenge in DataFlow.
Pick the best answer from given options :
a) Laws
b) Doctrine Changes
c) All the options
d) Ordinances
Correct answer of the above question is : c) All the options
20) What is the minimum Java version required for NiFi?
Pick the best answer from given options :
a) Java 7
b) All the options
c) Java 8 or newer
d) Java 8
Correct answer of the above question is : c) Java 8 or newer
21) _____________ is the favored communication protocol among NiFi instances.
Pick the best answer from given options :
a) NiFi Peer-to-Peer (P2P) Protocol
b) NiFi Site-to-Site (S2S) Protocol
c) None of the options
d) All the options
Correct answer of the above question is : b) NiFi Site-to-Site (S2S) Protocol
22) NiFi provides DFMs to pick a portion of the dataflow (or the entire dataflow) and build a ____________.
Pick the best answer from given options :
a) Controller Service
b) Funnel
c) Template
d) All the options
Correct answer of the above question is : c) Template
23) ____________ is an expansion point which, after being attached and configured by a DFM in the user interface, will light up while NiFi starts and provides the data required by the additional components.
Pick the best answer from given options :
a) All the options
b) Funnel
c) None of the options
d) Controller Service
Correct answer of the above question is : d) Controller Service
24) _____________ is a cause of system failure.
Pick the best answer from given options :
a) Disk failure
b) Network failure
c) Software crash
d) All the options
Correct answer of the above question is : d) All the options
25) _________________ is the file which stores the NiFi User Interface canvas is recorded.
Pick the best answer from given options :
a) None of the options
b) nifi.log
c) All of the options
d) flow.xml.gz
Correct answer of the above question is : d) flow.xml.gz
26) NiFi can scale up and down in a very flexible manner.
Pick the best answer from given options :
a) False
b) True
Correct answer of the above question is : b) True
27) What is the default Remote Input Socket Port for Apache NiFi?
Pick the best answer from given options :
a) All the options
b) 10443
c) 8081
d) 8001
Correct answer of the above question is : b) 10443
28) ____________ chooses NiFi Term for FBP term Black Box.
Pick the best answer from given options :
a) All the options
b) Connection
c) FlowFile
d) FlowFile Processor
Correct answer of the above question is : d) FlowFile Processor
29) ______________ is used to transport data from a Process Group to targets outside the Process Group.
Pick the best answer from given options :
a) None of the options
b) All the options
c) Output Port
d) Input Port
Correct answer of the above question is : c) Output Port
30) ____________ retains data about how processes combine and manage threads and allocations which they use.
Pick the best answer from given options :
a) Flow File
b) Connection
c) Flow Controller
Correct answer of the above question is : c) Flow Controller
31) Increasing the amount of TCP socket ports accessible is the best practice in NiFi configuration.
Pick the best answer from given options :
a) True
b) False
Correct answer of the above question is : a) True
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32) _________ is a NiFi user who has the permit to add, remove, and modify elements in a NiFi dataflow.
Pick the best answer from given options :
a) DataFlow Manager
b) System User
c) All the options
d) DataFlow Admin
Correct answer of the above question is : a) DataFlow Manager