SK0-005 Practice Questions

Question 1

A technician is installing a new server in a data center. To prevent electrostatic discharge (ESD) damage, which of the following should the technician do FIRST?

Accepted Answer

Attach an ESD wrist strap to a grounded surface. Option C is correct because using an ESD wrist strap connected to a grounded surface is the primary method to prevent ESD damage. Option A is wrong because wearing rubber-soled shoes alone does not provide a path to ground. Option B is wrong because an anti-static mat must be used with a ground connection. Option D is wrong because spraying anti-static spray on the floor is not a standard ESD prevention method and may create a slip hazard.

Answer

Place an anti-static mat on the floor

Answer

Spray anti-static solution on the server rack

Answer

Wear rubber-soled shoes

Question 2

A server administrator is tasked with ensuring that a critical database server remains available in the event of a hardware failure. The solution must provide automatic failover with minimal administrative overhead. Which of the following should be implemented?

Accepted Answer

Server clustering. Server clustering provides automatic failover between nodes, ensuring high availability with minimal administrative overhead. RAID 1 offers disk redundancy but not server-level failover. Load balancing distributes traffic but does not automatically redirect if a server fails. Scheduled backups restore data after a failure but do not prevent downtime.

Answer

Load balancing

Answer

Scheduled backups

Answer

RAID 1 mirroring

Question 3

A server with a RAID 5 array of four disks reports a degraded logical drive. The technician replaces the failed disk and rebuilds the array. After the rebuild completes, the array is still degraded. Which of the following is the most likely cause?

Accepted Answer

The replacement disk has a different rotational speed than the other disks. Option B is correct because if the replacement disk is of a different speed (e.g., 10k vs 15k), the RAID controller may not accept it or the rebuild may fail, leaving the array degraded. Option A is wrong because missing a partition would not cause the array to remain degraded after rebuild; the array is at a lower level. Option C is wrong because if the firmware were outdated, the controller would likely not recognize the drive at all. Option D is wrong because the disk name in Windows would not affect the RAID status.

Answer

The replacement disk is assigned a different drive letter in the OS

Answer

The RAID controller firmware is outdated

Answer

The replacement disk is missing a partition table

Question 4

Which TWO of the following are considered best practices for securing a server's remote management access?

Accepted Answer

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

Enable default administrative shares

Answer

Allow all inbound ICMP

Answer

Use telnet for remote CLI

Question 5

A server logged the warning shown in the exhibit. Which of the following should the technician check first?

Accepted Answer

The processor cooling fan. Option C is correct because the warning indicates high processor temperature, which is often caused by a failed or inadequate cooling fan for the CPU. Option A is wrong because the thermal paste would not cause a sudden temperature change; it's a more gradual issue. Option B is wrong while power supply issues can cause overheating, the more direct cause is the CPU fan. Option D is wrong because ambient temperature might be a factor but checking the CPU fan is a more immediate and likely cause.

Answer

The power supply voltage to the processor

Answer

The ambient temperature of the data center

Answer

The thermal paste between the heatsink and processor

Question 6

A technician is replacing a failed hard drive in a hot-swap RAID 5 array. After inserting the new drive, the RAID controller does not automatically rebuild. What should the technician do first?

Accepted Answer

Manually initiate a rebuild from the RAID controller utility. Many RAID controllers require manual initiation of the rebuild process. Rebooting may not trigger it. Replacing with a different model is unnecessary. Checking cabling is less likely since the drive is detected. The technician should use the controller utility to start the rebuild.

Answer

Check the SAS cable connection

Answer

Reboot the server

Answer

Replace the drive with a different model

Question 7

Your organization is migrating a Windows Server 2019 file server with 2 TB of shared data to a new server running Windows Server 2022. The migration must minimize user downtime and ensure file permissions are preserved. Users access files during business hours (8 AM to 6 PM) and the migration must be completed within a four-hour window starting at 10 PM on Saturday. You plan to use DFS Replication (DFSR) for initial data copy and then perform a final synchronization during the cutover. After setting up DFSR between the old and new servers, you realize that the initial replication will take approximately 12 hours due to the large number of files. What should you do to complete the migration within the allowed window?

Accepted Answer

Use robocopy to pre-stage the data from old to new server during off-hours before the cutover, then enable DFSR to replicate only changes made after pre-staging; during the cutover window, do a final DFSR sync. Option C is correct because pre-staging data using robocopy with appropriate flags (copying security and attributes) and then enabling DFSR for the delta changes is a best practice for large migrations. Option A is wrong because simply increasing DFSR bandwidth does not reduce the time needed for initial replication of 2 TB. Option B is wrong because using robocopy alone during the cutover window may not complete within four hours if you need to copy all data; pre-staging is required. Option D is wrong because performing a full backup and restore during the window is too time-consuming for 2 TB.

Answer

Disable DFSR and use robocopy with /MIR /COPYALL during the cutover window to copy all data

Answer

Perform a full backup of the old server and restore to the new server during the cutover window using Windows Backup

Answer

Increase the DFSR staging quota and bandwidth throttling to accelerate initial replication

Question 8

A server has four memory slots on two channels (A and B). Currently, DIMM_A1 and DIMM_A2 are populated with 8 GB DDR4-2666 modules each. To maximize performance and capacity, which memory configuration should be added?

Accepted Answer

Add two 8 GB DDR4-2666 modules to DIMM_B1 and DIMM_B2. To achieve dual-channel performance, populate both slots on channel B with identical modules. Adding two 8 GB modules to channel B will enable dual-channel operation and increase capacity to 32 GB symmetrically.

Answer

Add two 8 GB DDR4-2400 modules to channel B

Answer

Add one 8 GB DDR4-2666 module to DIMM_B1

Answer

Add one 16 GB DDR4-2666 module to DIMM_B1

Question 9

A technician is installing a new server for a department. The server will run a single application that requires high reliability. The operating system should be protected against a single disk failure without sacrificing read performance. Which RAID configuration is MOST appropriate?

Accepted Answer

RAID 1. Option D is correct because RAID 1 mirrors the OS drive, providing fault tolerance and good read performance. Option A (RAID 0) has no redundancy. Option B (RAID 5) requires at least three disks and has write penalty. Option C (RAID 6) requires at least four disks and is overkill for a simple OS mirror.

Answer

RAID 5

Answer

RAID 6

Answer

RAID 0

Question 10

A company has a virtualized server environment with two physical hosts running VMware vSphere. Each host has 2 CPUs, 128GB RAM, and 6x 600GB SAS drives in RAID 10. Recently, host A experienced a power surge that caused it to shut down abruptly. After restarting, the host boots but the RAID controller reports that one of the drives in the RAID 10 array is missing. The administrator has a replacement drive of the same model. What should the administrator do first?

Accepted Answer

Check the RAID controller logs to determine if the drive is faulty or if it's a connection issue, and then reseat the drive or replace cables before replacing. The most appropriate first step is to troubleshoot the connection. The drive might be loose or the cable damaged due to the surge. Option C is correct because reseating or checking cables is non-invasive and could resolve the issue without replacing a working drive. Option A is incorrect because replacing immediately might be unnecessary if the drive is fine. Option B is incorrect because setting as hot spare won't help if the drive is not detected. Option D is incorrect because rebuilding the entire array is drastic and risks data loss.

Answer

Use the RAID controller utility to set the new drive as a hot spare and then reboot

Answer

Replace the missing drive with the new one and allow the RAID controller to automatically rebuild

Answer

Rebuild the entire RAID array after backing up data from the surviving drives

Question 11

A SQL Server database administrator wants to backup a large database (500 GB) with minimal impact on transaction log growth and recovery time. Which TWO backup strategies should the administrator implement? (Choose two.)

Accepted Answer

Perform weekly full backups. Options A and D are correct. A: A full backup copies the entire database, and is needed as a base. D: Transaction log backups control log growth and allow point-in-time recovery. Option B is wrong because differential backups depend on a recent full backup. Option C is wrong because copy-only backups do not affect the log sequence, but they don't control log growth. Option E is wrong because tail-log backups are taken just before disaster recovery, not regularly.

Answer

Perform a tail-log backup before each full backup

Answer

Perform daily differential backups

Answer

Perform hourly copy-only backups

Question 12

You are a server administrator at a mid-sized company that hosts its own on-premises Exchange server and file server. The infrastructure consists of three racks: Rack A contains the core switches and firewalls, Rack B contains the Exchange server (Dell PowerEdge R740) and the file server (HP ProLiant DL380 Gen10), and Rack C contains backup devices and a tape library. The data center cooling is provided by a raised-floor system with perforated tiles. Recently, the file server has been experiencing random shutdowns during peak usage hours (10 AM to 2 PM). The shutdowns are preceded by system event log warnings indicating that the CPU temperature has exceeded the threshold. The ambient temperature around the rack is 20°C (68°F) as measured by a handheld thermometer. Other servers in Rack B do not exhibit this behavior. The file server is a 2U server with two Xeon processors, 128 GB RAM, and six hot-swap SATA drives. It runs Windows Server 2019. The server has been in service for three years with no prior issues. The data center manager has noted that the perforated tiles are clear of obstructions. You have verified that the fans in the file server are spinning and the internal air filters are clean. Which of the following is the MOST likely cause of the overheating issue?

Accepted Answer

The perforated tile under the file server has insufficient airflow due to cable blockage below the raised floor.. Option B is correct because the file server's shutdowns occur during peak hours when cooling load is highest. If the server is located in a spot with inadequate underfloor airflow (e.g., a tile blocked by cables or a misaligned tile), it will not receive enough cool air, leading to CPU overheating despite the ambient reading. Option A is incorrect because the fans are verified to be spinning and filters clean. Option C is unlikely because the ambient is normal and other servers are fine. Option D is possible but not as specific to peak hours; a failing PSU usually causes power loss, not CPU thermal events.

Answer

The ambient temperature sensor in the data center is reporting incorrectly and the actual temperature is higher.

Answer

The internal fans are not operating at full speed due to a failed fan controller.

Answer

The file server's power supply is failing and causing voltage drops that affect fan performance.

Question 13

A company operates a Windows Server 2019 machine that functions as a domain controller and file server. Over the past week, the server has randomly rebooted several times, often during periods of heavy file access. The administrator reviews the System event log and finds multiple Event ID 41 (Kernel-Power) entries with no preceding critical errors. The server is connected to an uninterruptible power supply (UPS) that reports stable input voltage. The server room temperature sensors indicate normal ambient temperature (22°C / 72°F). The server hardware is three years old and has not had any recent changes. The administrator has already run a full antivirus scan with no threats found. Which of the following should the administrator do NEXT to diagnose the issue?

Accepted Answer

Inspect and clean the CPU and chassis fans, and check for dust buildup. Option C is correct because random reboots with Kernel-Power 41 often indicate overheating due to failing fans or dust buildup, even if ambient temperature is normal. Option A is wrong because the power supply is likely not the issue given the UPS stability. Option B is wrong because a BIOS update is unlikely to solve hardware overheating. Option D is wrong because disabling automatic restart only hides the symptom and does not prevent the reboots.

Answer

Update the server's BIOS to the latest version

Answer

Replace the power supply unit

Answer

Disable the automatic restart feature in System Properties

Question 14

A company is migrating a legacy line-of-business application from Windows Server 2012 R2 to a new Windows Server 2022 server that is a member of an Active Directory domain. The application runs as a Windows service under a domain service account named CORP\svc_app. The service account has been granted the 'Log on as a service' user right on the old server, and the application is configured to listen on a static TCP port 8443. After installing the application on the new server and configuring it with the same service account and port, the application fails to start. The administrator checks the Windows Event Viewer and sees two errors in the System log: 'The CORP\svc_app service failed to start due to the following error: The service did not start due to a logon failure' and 'The service cannot bind to the designated port 8443'. The administrator has already verified that the service account's password is correct and has not expired, that the account is enabled, that the port 8443 is not being used by another service, and that the Windows Firewall has an inbound rule allowing traffic on port 8443. The application's configuration file correctly points to port 8443. What should the administrator do to resolve the issue?

Accepted Answer

Grant the 'Log on as a service' user right to the CORP\svc_app account via Local Security Policy or Group Policy.. The correct answer is B. The 'Log on as a service' user right is a security policy setting that must be explicitly assigned to a service account on each individual server. Even though the account had this right on the old server, it does not automatically carry over to the new server. Without this right, the service cannot start, and the 'logon failure' error is a classic symptom. Option A is incorrect because the password was already verified as correct. Option C is incorrect because the application requires a static port (port 8443) and changing to a dynamic port would break client connectivity. Option D is incorrect because restarting the server does not assign the missing user right and will not resolve the logon failure.

Answer

Restart the Windows Server 2022 server to apply any pending policy changes.

Answer

Configure the application to use a dynamic port instead of the static port 8443.

Answer

Reset the service account password and update the service configuration.

Question 15

A server administrator is restoring a file server from a full backup taken 7 days ago and incremental backups taken daily. The restoration fails with an error about missing catalog files. What is the most likely cause?

Accepted Answer

The incremental backup chain is broken. Restoring from incremental backups requires a complete chain from the last full backup. If any incremental backup in the chain is missing or corrupted, the restore will fail. Corrupted full backup media would cause a different error. OS compatibility issues would likely appear earlier. Hard drive failure would be a hardware error.

Answer

The hard drive on the file server has failed

Answer

The backup software is not compatible with the current OS version

Answer

The full backup media is corrupted

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