SELinux Security Policies and Mechanisms
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Questions and Answers

What is the main purpose of the Access Vector Cache (AVC) in Security Enhanced Linux?

  • To improve performance by caching access control decisions (correct)
  • To store security contexts of persistent entities
  • To map inodes to security contexts
  • To integrate security contexts into policy-independent inodes

What is the role of the Object Manager in Security Enhanced Linux?

  • To map PSIDs to SIDs (correct)
  • To implement security policies
  • To cache security contexts
  • To manage persistent entities

What is a persistent SID (PSID) in Security Enhanced Linux?

  • A security context of a file system
  • An object manager-local persistent security identifier (correct)
  • A bijective mapping of an inode to a security context
  • A policy-independent security context

What is the purpose of the inode/PSID map in Security Enhanced Linux?

<p>To map inodes to persistent SIDs (D)</p> Signup and view all the answers

What is the role of the Security Server in Security Enhanced Linux?

<p>To provide access control decisions (D)</p> Signup and view all the answers

What is the benefit of using the Access Vector Cache (AVC) in Security Enhanced Linux?

<p>Improved performance (B)</p> Signup and view all the answers

What is the relationship between an inode and a PSID in Security Enhanced Linux?

<p>Bijective mapping (C)</p> Signup and view all the answers

What is the purpose of the PSID/security context mapping in Security Enhanced Linux?

<p>To map a PSID to a security context (B)</p> Signup and view all the answers

Where is the Access Vector Cache (AVC) located in Security Enhanced Linux?

<p>In the Object Manager (B)</p> Signup and view all the answers

What is the role of the Policy Manager in Security Enhanced Linux?

<p>To implement security policies (C)</p> Signup and view all the answers

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