Hadoop Questions and Answers – Knox with Hadoop

This set of Hadoop Multiple Choice Questions & Answers (MCQs) focuses on “Knox with Hadoop”.

1. A fully secure Hadoop cluster needs ___________
a) SSH
b) SSL
c) Kerberos
d) REST
View Answer

Answer: c
Explanation: Kerberos requires a client side library and complex client side configuration.

2. Point out the correct statement.
a) Knox is a stateless reverse proxy framework
b) Knox also intercepts REST/HTTP calls and provides authentication
c) Knox scales linearly by adding more Knox nodes as the load increases
d) All of the mentioned
View Answer

Answer: d
Explanation: Knox can be deployed as a cluster of Knox instances that route requests to Hadoop’s REST APIs.

3. A __________ can route requests to multiple Knox instances.
a) collector
b) load balancer
c) comparator
d) all of the mentioned
View Answer

Answer: b
Explanation: Knox is a stateless reverse proxy framework.

4. Knox provides perimeter _________ for Hadoop clusters.
a) reliability
b) security
c) flexibility
d) fault tolerant
View Answer

Answer: b
Explanation: Kerberos requires a client side library and complex client side configuration.

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5. Point out the wrong statement.
a) Knox eliminates the need for client software or client configuration and thus simplifies the access model
b) Simplified access entend Hadoop’s REST/HTTP services by encapsulating Kerberos within the cluster
c) Knox intercepts web vulnerability removal and other security services through a series of extensible interceptor pipelines
d) None of the mentioned
View Answer

Answer: d
Explanation: Knox aggregates REST/HTTP calls to various components within the Hadoop ecosystem.

6. Knox integrates with prevalent identity management and _______ systems.
a) SSL
b) SSO
c) SSH
d) Kerberos
View Answer

Answer: b
Explanation: Knox allows identities from those enterprise systems to be used for seamless, secure access to Hadoop clusters.

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7. The easiest way to have an HDP cluster is to download the _____________
a) Hadoop
b) Sandbox
c) Dashboard
d) None of the mentioned
View Answer

Answer: b
Explanation: The Apache Knox Gateway is a system that provides a single point of authentication and access for Apache™ Hadoop® services.

8. Apache Knox Eliminates _______ edge node risks.
a) SSL
b) SSO
c) SSH
d) All of the mentioned
View Answer

Answer: c
Explanation: Knox hides Network Topology.

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9. Apache Knox accesses Hadoop Cluster over _________
a) HTTP
b) TCP
c) ICMP
d) None of the mentioned
View Answer

Answer: a
Explanation: Knox supports LDAP/AD Authentication, Service Authorization and Audit.

10. Apache Knox provides __________ REST API Access Point.
a) Single
b) Double
c) Multiple
d) Zero
View Answer

Answer: a
Explanation: The Apache Knox Gateway is a system that provides a single point of authentication and access for Apache.

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If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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