20+ practice questions focused on security-disaster-recovery — one of the most tested topics on the CompTIA Server+ SK0-005 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start security-disaster-recovery PracticeRefer to the exhibit. A backup job to a network share failed. The administrator reviews the backup log. What is the most likely cause of the failure?
Explanation: When a backup job to a network share fails, the most common and specific cause is that the account running the backup service lacks the necessary share and NTFS permissions on the destination. Backup logs typically show 'Access Denied' or 'Permission Denied' errors when the service account cannot write to the target path. Since the job reached the point of attempting to write, connectivity and server availability are already established, leaving permissions as the likely culprit.
A system administrator needs to configure secure remote access to servers in the data center. The current setup uses password-based SSH, but the security policy mandates multifactor authentication and prevention of brute-force attacks. Which solution best meets these requirements?
Explanation: It directly satisfies both the multifactor authentication (MFA) mandate and brute-force prevention. A VPN with certificate-based authentication provides a strong first factor (something you have), and enabling MFA adds a second factor (e.g., something you know or are), fully meeting the policy. Additionally, the VPN concentrator typically includes built-in brute-force protections like rate limiting and lockout, and it encrypts all traffic, which is ideal for secure remote access to data center servers.
A small accounting firm has a single server that hosts their client database and financial applications. The server is backed up nightly using a full backup to an external USB hard drive, which is stored on a shelf next to the server. Last month, a fire broke out in the office, completely destroying the server and the backup drive. The company lost all data since their last offsite backup, which was six months old because they occasionally took a copy home. The business owner wants to prevent such a catastrophic data loss in the future but is concerned about cost and complexity. They have a limited IT budget and no dedicated IT staff. The firm operates 9-5 Monday to Friday, and can tolerate up to 24 hours of downtime and up to one day of data loss. After the fire, they had to rebuild their client records from paper files, which took weeks. The owner realizes the importance of an offsite backup routine but cannot afford an expensive cloud service or a second server. The firm's internet connection is a basic DSL line with limited upload bandwidth, making large cloud backups slow. The server has a single internal drive with enough free space to store additional copies. Which of the following backup strategies would best meet the firm’s recovery objectives while minimizing cost and complexity?
Explanation: The firm needs an offsite copy to survive site-wide disasters, a maximum 24-hour RPO, and minimal cost/complexity with no IT staff. Having an employee take the nightly full backup drive home every evening ensures an offsite copy is created daily, meeting the 24-hour RPO, while reusing the existing USB drive and process — no new hardware, cloud subscription, or technical expertise required.
A regional hospital operates two data centers located 10 miles apart, with synchronous replication of critical patient record systems between them. The replication ensures that any write to the primary storage is immediately mirrored to the secondary site. The hospital also maintains weekly full backups to LTO-8 tapes, which are stored in a fireproof safe at an offsite warehouse 30 miles away. The IT team has not implemented storage snapshots or continuous data protection due to budget constraints. Last week, a ransomware attack encrypted all files on the primary site. The replication process promptly mirrored the encrypted data to the secondary site, rendering both copies inaccessible. The attackers demanded $500,000 in Bitcoin. The hospital's disaster recovery plan specifies an RPO of 1 hour and an RTO of 4 hours. The IT director must now choose a restoration strategy that minimizes data loss and downtime while ensuring a clean, malware-free environment. The backup tapes are confirmed to be unencrypted and free of ransomware. Which of the following actions should the IT director take first?
Explanation: The correct first action is to wipe the secondary data center storage, restore from the latest clean tape backup at the secondary site, and then reverse replication to the primary. This ensures a clean, malware-free environment because the tapes are confirmed unencrypted and free of ransomware, and it minimizes downtime by using the secondary site as the recovery point. Reversing replication after restoration prevents the re-infection of the primary site from the compromised secondary data.
Refer to the exhibit. A backup administrator scheduled a nightly backup to a network share. The backup job fails with the error shown in the log. What is the most likely cause?
Explanation: The “Access denied” message indicates a permissions issue, likely that the service account running the backup lacks write access to the share. The share being offline would likely show “network path not found,” a full disk would show “insufficient space,” and the software not installed would prevent the job from running at all.
+15 more security-disaster-recovery questions available
Practice all security-disaster-recovery questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of security-disaster-recovery. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
security-disaster-recovery questions on the SK0-005 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. security-disaster-recovery is tested as part of the CompTIA Server+ SK0-005 blueprint. Practicing with targeted security-disaster-recovery questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but security-disaster-recovery is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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