The correct answer is that the datastore is a vSAN datastore, and the VMFS version 3.61 is shown purely for compatibility with VMFS tools like vmkfstools. This happens because vSAN uses its own distributed object store, not VMFS, but the vmkfstools utility reports the version as 3.61 to allow standard VMFS commands to interact with the datastore without errors. On the VCP-DCV exam, this concept tests your understanding that vSAN datastores are not actually formatted with VMFS—the version number is a compatibility layer. A common trap is assuming the datastore is a standard VMFS volume with an unusual version, but the 2.0 TB capacity cap is another clue, as vSAN datastores often show this limit in vmkfstools output. Remember the memory tip: “3.61 is just a mask—vSAN’s real store is not VMFS, so don’t ask.”
VCP-DCV Configure and Manage vSphere Storage Practice Question
This VCP-DCV practice question tests your understanding of configure and manage vsphere storage. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
vmkfstools -Ph /vmfs/volumes/VSAN-DS
VMFS version 3.61
Number of extents: 1
Capacity 2.0 TB (2199023255552 bytes)
Free space 123.5 GB (132542701568 bytes)
Max file size 2.0 TB (2199023255552 bytes)
Max file name length: 255 characters
Number of files: 1542
Number of directories: 12
Number of links: 0
Number of VMFS pointer blocks: 0
Number of resource maps: 0
Refer to the exhibit. An administrator runs vmkfstools -Ph on a VSAN datastore. The output shows VMFS version 3.61 and a capacity of 2.0 TB. Which statement is true about this datastore?
vmkfstools -Ph /vmfs/volumes/VSAN-DS
VMFS version 3.61
Number of extents: 1
Capacity 2.0 TB (2199023255552 bytes)
Free space 123.5 GB (132542701568 bytes)
Max file size 2.0 TB (2199023255552 bytes)
Max file name length: 255 characters
Number of files: 1542
Number of directories: 12
Number of links: 0
Number of VMFS pointer blocks: 0
Number of resource maps: 0
A
The datastore is a VMFS datastore that has been upgraded to version 3.61.
Why wrong: vSAN datastores are not VMFS; they are vSAN object stores displayed as VMFS 3.61 for compatibility.
B
The datastore is a Virtual Volumes datastore, which uses VMFS 3.61.
Why wrong: Virtual Volumes datastores do not show VMFS version.
C
The datastore is an NFS datastore mounted as VMFS 3.61.
Why wrong: NFS datastores do not show VMFS version.
D
The datastore is a vSAN datastore, and the VMFS version shown is for compatibility with VMFS tools.
vSAN datastores appear as VMFS 3.61 to allow tools like vmkfstools to read them.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The datastore is a vSAN datastore, and the VMFS version shown is for compatibility with VMFS tools.
The exhibit shows a VSAN datastore displayed as VMFS version 3.61. vSAN datastores are presented as VMFS version 3.61 to maintain compatibility with VMFS tools. The actual vSAN object store is not formatted with VMFS, but vmkfstools reports this version for compatibility.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The datastore is a VMFS datastore that has been upgraded to version 3.61.
Why it's wrong here
vSAN datastores are not VMFS; they are vSAN object stores displayed as VMFS 3.61 for compatibility.
✗
The datastore is a Virtual Volumes datastore, which uses VMFS 3.61.
Why it's wrong here
Virtual Volumes datastores do not show VMFS version.
✗
The datastore is an NFS datastore mounted as VMFS 3.61.
Why it's wrong here
NFS datastores do not show VMFS version.
✓
The datastore is a vSAN datastore, and the VMFS version shown is for compatibility with VMFS tools.
Why this is correct
vSAN datastores appear as VMFS 3.61 to allow tools like vmkfstools to read them.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Trap categories for this question
Command / output trap
Virtual Volumes datastores do not show VMFS version.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related VCP-DCV NAT questions on configuration and troubleshooting.
Configure and Manage vSphere Storage — This question tests Configure and Manage vSphere Storage — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: The datastore is a vSAN datastore, and the VMFS version shown is for compatibility with VMFS tools. — The exhibit shows a VSAN datastore displayed as VMFS version 3.61. vSAN datastores are presented as VMFS version 3.61 to maintain compatibility with VMFS tools. The actual vSAN object store is not formatted with VMFS, but vmkfstools reports this version for compatibility.
What should I do if I get this VCP-DCV question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related VCP-DCV NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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