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LFCS · Question #198

LFCS Question #198: Real Exam Question with Answer & Explanation

The correct answer is A: It has a smaller set of operations.. LDAP is considered lightweight compared to X.500 primarily because it has a smaller set of operations and utilizes the TCP/IP protocol stack.

Submitted by eva_at· Apr 18, 2026Networking

Question

LDAP is considered "lightweight" in comparison to X.500 because (Choose TWO correct answers.)

Options

  • AIt has a smaller set of operations.
  • BThe client and server communicate using the TCP/IP protocol stack.
  • CThe client and server communicate using the OSI protocol stack.
  • DLDAP supports Access Control Lists and X.500 does not.

Explanation

LDAP is considered lightweight compared to X.500 primarily because it has a smaller set of operations and utilizes the TCP/IP protocol stack.

Common mistakes.

  • C. LDAP's lightweight nature stems from not using the complex OSI protocol stack, but rather the simpler TCP/IP.
  • D. Both LDAP and X.500 support Access Control Lists (ACLs); therefore, this is not a distinguishing factor for LDAP being lightweight.

Concept tested. LDAP vs X.500 differences

Reference. https://www.openldap.org/faq/data/cache/200.html

Topics

#LDAP#X.500#Directory Services#Network Protocols

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