SK0-005 practice questions

Q: Is this SK0-005 practice test free?

Yes. All 15 SK0-005 practice questions on this page are free, with instant scoring and a written explanation for each answer. You do not need an account and there is no time limit.

Q: How much does the real SK0-005 exam cost?

The official price is $399. Cyber VK sells the same official SK0-005 voucher for $224.99 — a saving of $174.01. The voucher is identical to one bought direct and is emailed within minutes of payment.

Q: Are these questions the same as the real SK0-005 exam?

No. These are original practice questions written to match the published exam objectives and difficulty. They are not real exam questions — sharing or reproducing live exam content breaches every certification body's candidate agreement and can void your certification.

Q: How should I use this practice test?

Use it as a readiness check rather than a study tool. Work through the questions without notes, read the explanation for every answer including the ones you got right, and treat any domain where you miss more than a third as the area to revise before booking your exam.

Question 1

Which RAID level provides disk striping with no redundancy or parity?

Accepted Answer

RAID 0 stripes data across all member disks for maximum performance and capacity but stores no parity or mirrored copy, so a single drive failure destroys the entire array.

Question 2

A technician is asked to install a server in a rack. The chassis is described as 4U. How much vertical rack space will it consume?

Accepted Answer

One rack unit (1U) equals 1.75 inches, so a 4U chassis occupies 4 x 1.75 = 7 inches of vertical rack space.

Question 3

Which backup type copies only the data that has changed since the last full backup and does NOT clear the archive bit?

Accepted Answer

A differential backup captures all changes since the last full backup and leaves the archive bit set, so each differential grows until the next full backup is taken.

Question 4

Which port must be open on a firewall to allow standard RDP administration traffic to a Windows server?

Accepted Answer

Remote Desktop Protocol listens on TCP 3389 by default; 22 is SSH, 443 is HTTPS, and 5900 is VNC.

Question 5

Which practice best prevents unauthorized physical access to servers in a shared colocation cage?

Accepted Answer

Physical threats require physical controls, and locking racks with badge readers restrict and log who can touch the hardware in a shared facility.

Question 6

An administrator needs an array of six 2 TB drives that can survive the loss of any two drives while maximizing usable capacity. Which configuration should be used?

Accepted Answer

RAID 6 uses dual distributed parity to tolerate any two simultaneous drive failures and yields 8 TB usable, whereas RAID 10 survives two failures only if they are in different mirrors and yields just 6 TB.

Question 7

A server has two power supplies, but both are plugged into the same rack PDU. Which risk does this configuration fail to mitigate?

Accepted Answer

Redundant PSUs only protect against a PSU failure; connecting both to one PDU leaves that PDU as a single point of failure, so each supply should feed from a separate power path.

Question 8

A company defines that no more than 30 minutes of transactional data may be lost during an outage. Which metric does this statement define?

Accepted Answer

Recovery point objective specifies the maximum acceptable amount of data loss measured in time, which drives how frequently backups or replication must run.

Question 9

Users report that a newly deployed application server is unreachable by hostname, but it responds normally when its IP address is used. Which item should the technician verify first?

Accepted Answer

Successful connectivity by IP but not by name isolates the fault to name resolution, so the missing or incorrect DNS A record is the first thing to check.

Question 10

Which action best enforces the principle of least privilege when a database administrator also needs occasional access to a file server?

Accepted Answer

Least privilege grants only the specific rights needed for the task, and a separate scoped account avoids the broad, permanent privileges the other options would confer.

Question 11

A RAID 5 array on a battery-backed cache controller shows sharply degraded write performance after a power event, and the controller log reports the write policy changed. What is the most likely cause?

Accepted Answer

Controllers drop from write-back to write-through when the BBU or capacitor cannot guarantee cache contents survive a power loss, and committing every write directly to disk causes the sharp write slowdown.

Question 12

After adding a second CPU to a dual-socket server, an administrator finds that memory-intensive workloads run slower than with one CPU. Which cause should be investigated first?

Accepted Answer

In a NUMA system each CPU owns its local memory channels, so leaving all DIMMs on socket 1 forces the second CPU to reach memory across the interconnect, adding latency that can outweigh the extra cores.

Question 13

An organization runs weekly full backups on Sunday and incremental backups every other night. A failure occurs Thursday afternoon. What is required to restore the server to Wednesday night's state?

Accepted Answer

Each incremental contains only the changes since the previous backup of any type, so every incremental between the last full and the target point must be restored in chronological order.

Question 14

A virtualization host with four teamed NICs shows heavy traffic on only one adapter while the others sit nearly idle, even under load from many VMs. What is the most likely cause?

Accepted Answer

Active-passive teaming keeps standby adapters idle until the active one fails, which matches traffic concentrating on a single NIC regardless of load.

Question 15

A decommissioned server holds SSDs containing regulated data, and the drives will be returned to the vendor under warranty. Which sanitization method is most appropriate?

Accepted Answer

Cryptographic or secure erase destroys the SSD's encryption key and reaches wear-leveled cells that overwrites miss, and it leaves the drives intact for warranty return, unlike degaussing which does not affect flash memory.

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