ISC Security Planning And Engineering Practice Question
An ISSEP must secure a server-to-server connection that currently uses plaintext LDAP. What is the recommended secure alternative?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Migrate to LDAPS (LDAP over TLS) on port 636.
LDAPS (LDAP over TLS/SSL) on port 636 is the industry-standard way to encrypt LDAP traffic.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use LDAP with Kerberos binding only.
Why it's wrong here
Kerberos provides authentication, but not necessarily transport encryption.
- ✗
Use IPsec to encrypt traffic between servers.
Why it's wrong here
While IPsec works, it is an infrastructure-level fix, not an application-specific configuration.
- ✓
Migrate to LDAPS (LDAP over TLS) on port 636.
Why this is correct
LDAPS provides encryption for LDAP traffic.
- ✗
Use a VPN tunnel.
Why it's wrong here
A VPN adds unnecessary complexity and overhead compared to native LDAPS.
About these practice questions
One of 209 original ISC practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official (ISC)² exam blueprint
This ISC practice question is part of Courseiva's free (ISC)² certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the ISC exam.