CND Practice Question: Network Security Controls Protocols And Devices
A network administrator is setting up a secure remote management channel for Linux servers across the public internet. The security policy mandates that Telnet must not be used. Which protocol should be implemented?
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
✓
SSH (Secure Shell)
SSH (Secure Shell) provides a secure, encrypted channel for remote administrative access, replacing insecure legacy protocols like Telnet, rlogin, and rsh.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
SSH (Secure Shell)
Why this is correct
SSH provides strong cryptographic authentication and encryption for remote command-line administration.
- ✗
HTTP
Why it's wrong here
HTTP is an unencrypted web protocol and is not designed for command-line remote server management.
- ✗
SNMPv1
Why it's wrong here
SNMPv1 is a network management protocol that transmits community strings in cleartext and is not used for interactive remote shell management.
- ✗
FTP
Why it's wrong here
FTP is used for file transfers and transmits credentials and data in cleartext unless wrapped in TLS (FTPS).
About these practice questions
Courseiva writes every CND question from scratch — 323 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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 EC-Council exam blueprint
This CND practice question is part of Courseiva's free EC-Council 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 CND exam.