Hadoop security practice questions


Set of questions & answers to test your introductory knowledge on HDFS concepts

1. If one has to define the 4 key pillars of Hadoop security, which one would you pick?

    a. Authentication, Authorization, Accountability and Data protection
    b. Authentication, Authorization, Accountability and Sensitivity
    c. Real time Access, Token Delegation, Data masking and Access Control
    d. Accountability, Token Delegation, Data masking and Access Control

1. If one has to define the 4 key pillars of Hadoop security, which one would you pick?

Answer: a.
Authentication, Authorization, Accountability and Data protection


Explanation: 4 Security Pillars & Rings of Defense considered in today's Hadoop system include: Authentication, Authorization, Audit, Data Protection

2. Which is the most common form of authentication used in Hadoop?

    a. ACL
    b. Kerberos
    c. LDAP
    d. Proxy

2. Which is the most common form of authentication used in Hadoop?

Answer: b.
Kerberos


Explanation: Kerberos in Hadoop:(a)establishes identity for clients, hosts and services; (b)prevents impersonation/passwords are never sent over the wire; (c) Integrates w/ enterprise identity management tools such as LDAP/AD;(d)More granular auditing of data access/job execution

3. Which product among the following is not used for Hadoop Security?

    a. Sentry
    b. Knox
    c. Rhino
    d. Tez

3. Which product among the following is not used for Hadoop Security?

Answer: d.
Tez


Explanation: Sentry, Knox and Rhino are used for Hadoop Security solutions. Tez is for SQL on Hadoop.

4. What is a delegation token?

    a. Data masking token
    b. Two party authentication protocol
    c. Firewall entry code
    d. All of the above

4. What is a delegation token?

Answer: b.
Two party authentication protocol


Explanation: A delegation token is a two-party authentication protocol that lets users authenticate themselves with the Namenode (using Kerberos); on receipt of the delegation token, users can provide the token to the JobTracker.
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