SK0-005 Practice Test 3 — 10 Questions

Question 1

A server administrator is troubleshooting a Windows Server 2022 host that presents a RAID 10 array to the operating system as a single 2 TB volume. Users report that write performance to a database on this volume has degraded sharply over the past week, and the array's management utility shows all member drives as online with no rebuild in progress. Which of the following should the administrator check FIRST to identify the cause?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

The RAID controller's write cache policy and battery/capacitor health status.. With all RAID 10 member drives online and no rebuild activity, the sudden write slowdown most likely originates at the controller level. A failed cache battery or capacitor causes the controller to switch from write-back to write-through, which removes the performance benefit of the cache and sharply increases write latency. The cache policy and module health are therefore the first things to verify.

Answer

The NTFS cluster size of the volume presented to the operating system.

Answer

The number of spare drives assigned to the array.

Answer

The stripe size configured on the RAID 10 array.

Question 2

A small accounting firm runs a single physical server that hosts all of its line-of-business applications. The owner wants a backup strategy that allows the entire server, including the operating system, applications, and data, to be restored to dissimilar hardware after a catastrophic failure. Which backup type should the administrator implement?

Accepted Answer

Bare-metal backup. A bare-metal backup is the only listed method that captures the full server, including the OS, applications, and data, in a form that can be restored to dissimilar hardware. File-level, differential, and database-specific backups each omit critical system components, so they cannot satisfy the requirement for a complete server recovery on different hardware.

Answer

Differential backup

Answer

Database dump

Answer

File-level incremental backup

Question 3

A security administrator is configuring a Linux server to allow only SSH and HTTPS traffic from a specific management subnet while blocking all other inbound traffic. The server has two network interfaces: eth0 (public) and eth1 (management). Which command should the administrator use to view the current iptables rules with line numbers to identify the rule positions before modifying them?

Accepted Answer

iptables -L --line-numbers. The administrator needs to view the current iptables rules with line numbers to identify rule positions before making changes. The iptables -L --line-numbers command lists all rules with line numbers, allowing precise insertion or deletion. This is critical when reordering rules to ensure management subnet traffic is permitted before any default deny rule. Other commands either lack line numbers or are destructive.

Answer

iptables -F

Answer

iptables -L -n -v

Answer

iptables -S

Question 4

A server administrator is troubleshooting a Windows Server 2022 host that presents a RAID 10 array to the operating system as a single 2 TB volume. Users report that write performance to a database on this volume has degraded sharply over the past week, and the array's management utility shows all member drives as online with no rebuild in progress. Which of the following should the administrator check FIRST to identify the cause?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Verify the integrity of the structured cabling between the wall jack and the patch panel.. Intermittent link loss after replacing the patch cable points to the structured cabling or the switch port. Checking the permanent link between the wall jack and patch panel, and reviewing switch port statistics for errors or flapping, are the next logical diagnostic steps to isolate the fault.

Answer

Update the NIC driver to the latest version from the vendor's website.

Answer

Reconfigure the switch port to use a fixed speed and duplex instead of auto-negotiation.

Answer

Replace the server's network interface card with a known-good spare.

Question 5

A system administrator manages a Windows Server 2019 environment with multiple physical servers. The administrator needs to implement a remote management solution that provides out-of-band access to the servers' console even when the operating system is unresponsive or powered off. The solution must also allow mounting virtual media for OS installation and support remote power cycling. Which TWO of the following should the administrator implement? (Choose two.)

Accepted Answer

Configure the servers' baseboard management controllers (BMCs) with dedicated network access.. Out-of-band management requires a baseboard management controller (BMC) or an integrated lights-out interface like iLO or iDRAC. These components operate independently of the operating system, providing console access, virtual media mounting, and remote power cycling even when the server is off or unresponsive. Configuring dedicated network access for the BMC ensures reliable connectivity. Other options like RDP or VPNs do not provide the required out-of-band capabilities.

Answer

Set up a VPN connection for administrators to access the server management network.

Answer

Enable Remote Desktop Protocol (RDP) on all servers and restrict access via firewall rules.

Answer

Deploy a terminal server and use it as a jump host for administrative connections.

Question 6

A company is designing a disaster recovery plan for its primary datacenter. The plan must include a warm site that can take over production within four hours and must verify that the recovery procedures actually work. Which two elements should be included? (Choose two.)

Accepted Answer

A tabletop exercise that walks stakeholders through the recovery steps and identifies gaps in the plan.. A workable disaster recovery plan for a four-hour warm site takeover needs measurable objectives and validation. Documented RTO and RPO values define the acceptable downtime and data loss, guiding the warm site design and replication schedule. A tabletop exercise validates the plan by walking stakeholders through the procedures, revealing gaps without risking production. The other options either describe a real outage, an inadequate cold site, or backups stored in a single failure domain, none of which support the stated recovery targets.

Answer

Biweekly incremental backups to tape stored only in the primary datacenter.

Answer

A full-scale failover test that shuts down the primary datacenter during business hours without notifying users.

Answer

A cold site with no pre-installed hardware or data replication, relying on emergency procurement during a disaster.

Question 7

A company runs a critical application on a physical server with four 15,000 RPM SAS drives in a hardware RAID 5 array. Users report that write performance has degraded significantly during peak hours. Performance monitoring shows high disk queue length. The administrator wants to improve write performance without sacrificing redundancy or adding more drives. Which of the following should the administrator implement?

Accepted Answer

Configure the RAID controller to use write-back caching with a battery-backed cache module.. RAID 5 suffers from a write penalty because each write requires reading old data and parity, calculating new parity, and writing both. Write-back caching with a battery-backed module allows the controller to buffer writes and acknowledge them quickly, dramatically improving write throughput while preserving redundancy. The battery ensures data is not lost if power fails before the cache is flushed to disk.

Answer

Change the RAID level to RAID 0 to eliminate parity overhead.

Answer

Increase the RAID stripe size to 256 KB.

Answer

Enable disk defragmentation on the server's data volume.

Question 8

A company's file server is running low on disk space. The administrator notices that the volume hosting user home directories is nearly full, with only 10 GB free out of 2 TB. Users report that they cannot save new files. The administrator needs to free up space immediately without deleting any user data. Which of the following should the administrator do FIRST?

Accepted Answer

Use File Server Resource Manager to generate a storage report and identify large files.. The administrator should first identify what is consuming disk space before taking any action. File Server Resource Manager provides detailed storage reports that show large files, duplicates, and usage by owner, enabling targeted cleanup without risking user data. Other options either do not address the specific volume or are not immediate or effective enough.

Answer

Enable NTFS compression on the volume.

Answer

Move the pagefile to another volume.

Answer

Run Disk Cleanup to remove temporary files and system caches.

Question 9

A company's datacenter is in a region prone to flooding. Management requires that a copy of nightly backups be stored where a regional flood cannot destroy both the production data and the backup copy, and that the copy be retrievable within 24 hours. Which strategy BEST meets these requirements?

Accepted Answer

Ship encrypted backup copies to an offsite vault in a different geographic region.. The requirement is geographic separation of a backup copy so that a single regional flood cannot destroy production data and its backup, plus retrieval within 24 hours. Offsite vaulting in a different region satisfies both the survivability and recovery-time requirements, and encryption keeps the media safe while it is outside the organization's control.

Answer

Increase the RAID level on the production servers from RAID 5 to RAID 6.

Answer

Replicate the backups to a tape library in a hardened rack in the same datacenter.

Answer

Configure an on-site disk-to-disk backup target and enable snapshots every four hours.

Question 10

A server administrator is troubleshooting a Windows Server 2022 host that presents a RAID 10 array to the operating system as a single 2 TB volume. Users report that write performance to a database on this volume has degraded sharply over the past week, and the array's management utility shows all member drives as online with no rebuild in progress. Which of the following should the administrator check FIRST to identify the cause?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Identify the physical bay of the failing drive using the RAID controller management utility or locator LED before removal.. Replacing a member of a degraded RAID 5 array safely requires two things: a validated backup in case the rebuild fails or another drive dies, and positive identification of the correct physical bay so the wrong drive is never removed. Both steps directly reduce the risk of catastrophic data loss during the swap.

Answer

Delete the array and recreate it from scratch to ensure a clean rebuild.

Answer

Force the failing drive offline immediately so the controller begins rebuilding onto a spare.

Answer

Power down the server and remove the drive while the system is offline to avoid hot-swap risk.