Security In Hadoop — Part 1 MCQs with Explanations
Practice high-yield Computer Science & IT MCQs on Security In Hadoop — Part 1 with worked academic solutions for PPSC, FPSC, CSS, PMS, NTS.
Questions
40
Difficulty Level
Exam-Level
Target Exams
PPSC, FPSC, CSS...
Estimated Time
48 mins
Exam-Level PPSC FPSC CSS PMS NTS
Verified for Commission Syllabus • Oct 14, 2026
40
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Question 1 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the primary purpose of Hadoop's Kerberos authentication?
Correct Answer: Option A — Ensuring secure communication within the Hadoop cluster
Detailed Academic Explanation:
Ensuring secure communication within the Hadoop cluster is the correct answer to “What is the primary purpose of Hadoop's Kerberos authentication”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 2 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which Hadoop component is responsible for managing user authentication and access control?
Correct Answer: Option D — Hadoop Distributed File System (HDFS)
Detailed Academic Explanation:
Hadoop Distributed File System (HDFS) is the correct answer to “Which Hadoop component is responsible for managing user authentication and access control”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 3 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the significance of Hadoop's Access Control Lists (ACLs) in terms of security?
Correct Answer: Option C — Restricting access to specific Hadoop resources
Detailed Academic Explanation:
Restricting access to specific Hadoop resources is the correct answer to “What is the significance of Hadoop's Access Control Lists (ACLs) in terms of security”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 4 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop support encryption at rest for data stored in HDFS?
Correct Answer: Option B — Configuring transparent data encryption (TDE)
Detailed Academic Explanation:
Configuring transparent data encryption (TDE) is the correct answer to “How does Hadoop support encryption at rest for data stored in HDFS”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 5 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's Secure Shell (SSH) in a secure Hadoop environment?
Correct Answer: Option C — Authenticating users accessing the Hadoop cluster
Detailed Academic Explanation:
Authenticating users accessing the Hadoop cluster is the correct answer to “What is the purpose of Hadoop's Secure Shell (SSH) in a secure Hadoop environment”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 6 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can you secure data transmission between nodes in a Hadoop cluster?
Correct Answer: Option D — Enabling SSL/TLS encryption for Hadoop services
Detailed Academic Explanation:
Enabling SSL/TLS encryption for Hadoop services is the correct answer to “How can you secure data transmission between nodes in a Hadoop cluster”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 7 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's HDFS Encryption Zone?
Correct Answer: Option A — Encrypting specific directories in HDFS
Detailed Academic Explanation:
Encrypting specific directories in HDFS is the correct answer to “What is the purpose of Hadoop's HDFS Encryption Zone”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 8 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which Hadoop configuration property is used to define the location of the Kerberos keytab file?
Correct Answer: Option D — security.kerberos.keytab
Detailed Academic Explanation:
security.kerberos.keytab is the correct answer to “Which Hadoop configuration property is used to define the location of the Kerberos keytab file”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 9 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can you configure Hadoop to use LDAP for user authentication?
Correct Answer: Option C — Set the property "hadoop.security.authentication" to "LDAP"
Detailed Academic Explanation:
Set the property "hadoop.security.authentication" to "LDAP" is the correct answer to “How can you configure Hadoop to use LDAP for user authentication”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 10 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's Ranger in the context of security?
Correct Answer: Option B — Managing and enforcing security policies in Hadoop
Detailed Academic Explanation:
Managing and enforcing security policies in Hadoop is the correct answer to “What is the purpose of Hadoop's Ranger in the context of security”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 11 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop mitigate the risk of data exposure during network transmission?
Correct Answer: Option C — By using Secure Sockets Layer (SSL) encryption
Detailed Academic Explanation:
By using Secure Sockets Layer (SSL) encryption is the correct answer to “How does Hadoop mitigate the risk of data exposure during network transmission”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 12 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the role of Hadoop's HDFS snapshot feature in terms of security?
Correct Answer: Option D — Creating point-in-time copies of HDFS directories
Detailed Academic Explanation:
Creating point-in-time copies of HDFS directories is the correct answer to “What is the role of Hadoop's HDFS snapshot feature in terms of security”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 13 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can you secure the communication between a Hadoop client and the ResourceManager?
Correct Answer: Option A — Enabling SSL/TLS for communication
Detailed Academic Explanation:
Enabling SSL/TLS for communication is the correct answer to “How can you secure the communication between a Hadoop client and the ResourceManager”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 14 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's Impersonation in the context of security?
Correct Answer: Option D — Allowing users to perform actions on behalf of another user
Detailed Academic Explanation:
Allowing users to perform actions on behalf of another user is the correct answer to “What is the purpose of Hadoop's Impersonation in the context of security”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 15 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop's audit logging enhance security?
Correct Answer: Option C — Capturing and logging security-related events
Detailed Academic Explanation:
Capturing and logging security-related events is the correct answer to “How does Hadoop's audit logging enhance security”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 16 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop mitigate the risk of unauthorized data access in HDFS?
Correct Answer: Option B — Utilizing HDFS Encryption Zones
Detailed Academic Explanation:
Utilizing HDFS Encryption Zones is the correct answer to “How does Hadoop mitigate the risk of unauthorized data access in HDFS”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 17 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's Knox Gateway in a Hadoop security setup?
Correct Answer: Option C — Providing a single entry point for Hadoop cluster access
Detailed Academic Explanation:
Providing a single entry point for Hadoop cluster access is the correct answer to “What is the purpose of Hadoop's Knox Gateway in a Hadoop security setup”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 18 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can you secure the communication between nodes in a Hadoop cluster using IPsec?
Correct Answer: Option D — Configuring IPsec for secure communication
Detailed Academic Explanation:
Configuring IPsec for secure communication is the correct answer to “How can you secure the communication between nodes in a Hadoop cluster using IPsec”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 19 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's Key Management Server (KMS) in encryption?
Correct Answer: Option A — Managing encryption keys for Hadoop services
Detailed Academic Explanation:
Managing encryption keys for Hadoop services is the correct answer to “What is the purpose of Hadoop's Key Management Server (KMS) in encryption”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 20 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop's Transparent Data Encryption (TDE) enhance security in HDFS?
Correct Answer: Option D — Encrypting data at rest in HDFS
Detailed Academic Explanation:
Encrypting data at rest in HDFS is the correct answer to “How does Hadoop's Transparent Data Encryption (TDE) enhance security in HDFS”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 21 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the role of the Hadoop Security Manager in a Hadoop cluster?
Correct Answer: Option C — Managing user authentication and access control
Detailed Academic Explanation:
Managing user authentication and access control is the correct answer to “What is the role of the Hadoop Security Manager in a Hadoop cluster”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 22 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can Hadoop mitigate the risk of a Man-in-the-Middle (MITM) attack during data transmission?
Correct Answer: Option B — Enabling SSL/TLS for communication
Detailed Academic Explanation:
Enabling SSL/TLS for communication is the correct answer to “How can Hadoop mitigate the risk of a Man-in-the-Middle (MITM) attack during data transmission”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 23 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the significance of Hadoop's Secure DataNode Communication in HDFS security?
Correct Answer: Option C — Ensuring secure communication between DataNodes
Detailed Academic Explanation:
Ensuring secure communication between DataNodes is the correct answer to “What is the significance of Hadoop's Secure DataNode Communication in HDFS security”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 24 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop's HDFS Access Control Lists (ACLs) differ from traditional Unix file permissions?
Correct Answer: Option D — Provides more fine-grained access control
Detailed Academic Explanation:
Provides more fine-grained access control is the correct answer to “How does Hadoop's HDFS Access Control Lists (ACLs) differ from traditional Unix file permissions”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 25 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's Ranger KMS (Key Management Service) in a Hadoop security setup?
Correct Answer: Option A — Managing and securing encryption keys
Detailed Academic Explanation:
Managing and securing encryption keys is the correct answer to “What is the purpose of Hadoop's Ranger KMS (Key Management Service) in a Hadoop security setup”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 26 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can you secure the data stored in HDFS from unauthorized access?
Correct Answer: Option D — Set proper permissions using HDFS ACLs
Detailed Academic Explanation:
Set proper permissions using HDFS ACLs is the correct answer to “How can you secure the data stored in HDFS from unauthorized access”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 27 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the role of Hadoop's Authentication Proxy in a secure Hadoop environment?
Correct Answer: Option C — Authenticating users accessing the Hadoop cluster
Detailed Academic Explanation:
Authenticating users accessing the Hadoop cluster is the correct answer to “What is the role of Hadoop's Authentication Proxy in a secure Hadoop environment”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 28 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop's Knox Gateway enhance security in a Hadoop cluster?
Correct Answer: Option B — Provides a secure gateway for external access
Detailed Academic Explanation:
Provides a secure gateway for external access is the correct answer to “How does Hadoop's Knox Gateway enhance security in a Hadoop cluster”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 29 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's HDFS Encryption Zones in terms of data security?
Correct Answer: Option C — Allows for selective encryption of specific directories
Detailed Academic Explanation:
Allows for selective encryption of specific directories is the correct answer to “What is the purpose of Hadoop's HDFS Encryption Zones in terms of data security”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 30 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can Hadoop's audit logging be useful in a security context?
Correct Answer: Option D — Capturing and logging security-related events
Detailed Academic Explanation:
Capturing and logging security-related events is the correct answer to “How can Hadoop's audit logging be useful in a security context”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 31 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's Secure DataNode?
Correct Answer: Option C — Ensuring secure communication between DataNodes
Detailed Academic Explanation:
Ensuring secure communication between DataNodes is the correct answer to “What is the purpose of Hadoop's Secure DataNode”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 32 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop's Ranger support security in Hadoop clusters?
Correct Answer: Option D — Managing and enforcing security policies in Hadoop
Detailed Academic Explanation:
Managing and enforcing security policies in Hadoop is the correct answer to “How does Hadoop's Ranger support security in Hadoop clusters”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 33 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the primary function of Hadoop's Audit Logging?
Correct Answer: Option A — Capturing and logging security-related events
Detailed Academic Explanation:
Capturing and logging security-related events is the correct answer to “What is the primary function of Hadoop's Audit Logging”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 34 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can you secure the communication between nodes in a Hadoop cluster using SASL?
Correct Answer: Option D — Enabling SASL for authentication and encryption
Detailed Academic Explanation:
Enabling SASL for authentication and encryption is the correct answer to “How can you secure the communication between nodes in a Hadoop cluster using SASL”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 35 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the purpose of Hadoop's HDFS Trash feature in a security context?
Correct Answer: Option C — Providing a temporary storage for deleted files
Detailed Academic Explanation:
Providing a temporary storage for deleted files is the correct answer to “What is the purpose of Hadoop's HDFS Trash feature in a security context”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 36 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop's HDFS Federation contribute to security in a Hadoop cluster?
Correct Answer: Option B — Ensuring secure communication between DataNodes
Detailed Academic Explanation:
Ensuring secure communication between DataNodes is the correct answer to “How does Hadoop's HDFS Federation contribute to security in a Hadoop cluster”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 37 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What role does the Hadoop CredentialProvider API play in securing Hadoop credentials?
Correct Answer: Option C — Safely managing and storing sensitive information
Detailed Academic Explanation:
Safely managing and storing sensitive information is the correct answer to “What role does the Hadoop CredentialProvider API play in securing Hadoop credentials”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 38 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How can you secure Hadoop's JobHistory Server?
Correct Answer: Option D — Enabling SSL/TLS for communication
Detailed Academic Explanation:
Enabling SSL/TLS for communication is the correct answer to “How can you secure Hadoop's JobHistory Server”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 39 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is the significance of Hadoop's Authentication Proxy in a secure Hadoop environment?
Correct Answer: Option A — Authenticating users accessing the Hadoop cluster
Detailed Academic Explanation:
Authenticating users accessing the Hadoop cluster is the correct answer to “What is the significance of Hadoop's Authentication Proxy in a secure Hadoop environment”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
Question 40 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
How does Hadoop's HDFS Trash feature contribute to security?
Correct Answer: Option D — Provides a temporary storage for deleted files
Detailed Academic Explanation:
Provides a temporary storage for deleted files is the correct answer to “How does Hadoop's HDFS Trash feature contribute to security”. This question is standard in competitive examination syllabi for Security In Hadoop.
💡Key Conceptual Anchor:Security In Hadoop
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In competitive commission exams (FPSC, PPSC, KPPSC, SPSC, CSS, PMS), questions are frequently phrased with distractor options designed to catch rote learners. Whenever you answer an MCQ, read the Detailed Academic Explanation and Conceptual Anchor to understand why the remaining options are incorrect.