Question 153 of 144
SK0-005 server-administration Practice Question
Which TWO of the following are considered best practices for securing a server's remote management access?
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
✓
Use SSH key-based authentication
Using SSH key-based authentication provides strong encryption and eliminates password theft risks. Disabling unused services reduces the attack surface. Enabling default administrative shares increases exposure. Allowing all inbound ICMP can facilitate reconnaissance. Telnet sends data in plaintext and is insecure.
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 SSH key-based authentication
Why this is correct
SSH keys provide a more secure alternative to passwords, using cryptographic keys that are resistant to brute-force attacks.
- ✗
Enable default administrative shares
Why it's wrong here
Default administrative shares (such as ADMIN$) are often targeted by attackers; they should be disabled if not needed.
- ✗
Allow all inbound ICMP
Why it's wrong here
Allowing all ICMP traffic can expose the server to ping floods and help attackers map the network.
- ✓
Disable unused services
Why this is correct
Disabling services that are not required reduces the number of potential entry points for attackers.
- ✗
Use telnet for remote CLI
Why it's wrong here
Telnet transmits data, including credentials, in cleartext and is considered insecure; SSH should be used instead.
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Last reviewed: Jul 26, 2026
This SK0-005 practice question is part of Courseiva's free CompTIA 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 SK0-005 exam.
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