SDSI Secure Infrastructure Design Practice Question
Which protocol is recommended for secure network time synchronization across security devices?
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
✓
NTP with Authentication
NTP with authentication is the industry standard for secure time synchronization.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
SNMP
Why it's wrong here
SNMP is for management, not time sync.
- ✗
HTTP
Why it's wrong here
HTTP is not a time protocol.
- ✓
NTP with Authentication
Why this is correct
Authenticated NTP prevents time-spoofing attacks.
- ✗
DHCP
Why it's wrong here
DHCP is for IP assignment.
About these practice questions
This SDSI question is part of Courseiva's 299-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. 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 Cisco exam blueprint
This SDSI practice question is part of Courseiva's free Cisco 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 SDSI exam.