[Jan-2022] 5V0-21.21 Dumps Full Questions - VMware Certified Master Specialist Exam Study Guide
Exam Questions and Answers for 5V0-21.21 Study Guide
NEW QUESTION 27
An architect is working with vSAN and setting the fault domains to support FTT=1.
How many fault domains will be needed?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 28
An administrator is tasked with setting up Kerberos authentication only for the vSAN File services.
Which version of Kerberos must be selected if the NFS version is v4.1?
- A. krb5p
- B. krb5
- C. krb5i
- D. krb4
Answer: C
NEW QUESTION 29
An administrator managing a vSAN cluster of six-nodes with policy FTT-2/RAID-6 decided to put one of the nodes in maintenance mode using the "Full-data migration" option.
What will happen after this action is taken?
- A. The host will enter in maintenance mode and only data with no redundancy will remain accessible.
- B. The host will enter in maintenance mode and the data will remain accessible until the host exits maintenance mode.
- C. The system will prompt to add an additional host to the cluster in order to preserve the policy compliance.
- D. The host will enter into maintenance mode if both components of a certain object are residing on that host, then one of the components will be moved to another available host.
Answer: B
NEW QUESTION 30
After a vSAN Witness Appliance network configuration, the vSAN administrator notices that vSAN traffic flows from vmk0 (Management Traffic) rather than vmk1 (vSAN Traffic).
Which step should be taken to resolve this issue?
- A. Tag the vmk0 for vSAN traffic.
- B. Configure vmk0 with IP address on the same range as that of vmk1.
- C. Configure vmk1 with IP address on the different network than that of vmk0.
- D. Tag the vmk1 for Witness traffic.
Answer: C
NEW QUESTION 31
An administrator has been tasked with enabling encryption for existing virtual machines on a vSAN cluster.
Which three prerequisites must be satisfied before completing the task? (Choose three.)
- A. Establish a trusted connection with the KMS
- B. Enable Data-In-Transit encryption first
- C. Create an encryption storage policy
- D. Verify if a role with privilege "Cryptographic operations.Migrate" is assigned
- E. Verify if a role with privilege "Cryptographic operations.Encrypt new" is assigned
- F. Enable that the virtual machines are powered on
Answer: A,C,E
Explanation:
Because Before you can create encrypted virtual machines, you must create an encryption storage policy. You create the storage policy once, and assign it each time you encrypt a virtual machine or virtual disk. https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.security.doc/GUID-7DE1ED8F-880B-421E-B27B-5AAA58454AFA.html
NEW QUESTION 32
An architect is tasked to design a VMware Horizon Solution with vSAN. The architect needs to use a solution to host the user's profile shares in a highly available manner, and it must be guest OS independent.
Which solution will match these requirements?
- A. Cluster in a box
- B. iSCSI on vSAN
- C. Cluster out of the box
- D. NFS on vSAN
Answer: B
NEW QUESTION 33
A customer has upgraded to vSAN 7, but there is still an existing legacy host which must be removed from the vSAN cluster.
Which three steps must an administrator take to successfully remove this host from the vSAN cluster? (Choose three.)
- A. Disconnect from vCenter Server
- B. Place the host in maintenance mode with Full Data migration
- C. Delete the disk group(s) on the legacy host
- D. Remove from vSAN cluster
- E. Place the host in maintenance mode with Ensure Accessibility
- F. Place the host in maintenance mode with no data migration
Answer: B,C,D
NEW QUESTION 34
A company has engaged a consultant to upgrade an existing vSAN cluster to vSAN 7.0 U1. The company wants to ensure that the same vSAN process can be used in the future.
During the discovery phase, the consultant found the following information about the existing environment:
* The vCenter Server is currently version 7.0.
* The vSAN Cluster has the following configuration:
- vSAN version: 7.0
- Number of vSAN nodes: 6
- Encryption: enabled
- Deduplication and Compression: enabled
- Fault Domains: 1
- vSAN Capacity Utilization: 60%
* Each vSAN node has the following configuration:
- ESXi version: VMware vSphere 7.0
- CPU: 2 processors, 20 cores
- RAM: 1024GB RAM.
- Disk: 2 Cache SSDs and 6 Capacity SSDs
- Network: 4 x 10GbE
* All current hardware (which is from a single vendor) is listed on the vSAN Compatibility Guide for vSAN 7.
Which three recommendations should the consultant make to ensure that the vSAN cluster upgrade is completed? (Choose three.)
- A. Upgrade all vSAN nodes to VMware vSphere 7.0 U1 using the baselines capability within VMware Update Manager (VUM).
- B. Set VMware Distributed Resource Scheduling (DRS) to partially automated.
- C. Upgrade all vSAN nodes to VMware vSphere 7.0 U1 using the images capability within VMware Update Manager (VUM).
- D. Upgrade to VMware vCenter Server 7.0 U1.
- E. Choose the Allow reduced redundancy option.
- F. Disable vSAN Encryption before starting the upgrade process.
Answer: C,D,E
NEW QUESTION 35
An administrator is planning to deploy cloud-native workloads onto the vSAN Direct datastore.
Which storage policy structure rule is supported?
- A. Tag-based placement rules
- B. vVOL storage rules
- C. Host-based rules
- D. Storage performance-based rules
Answer: A
Explanation:
https://docs.vmware.com/en/VMware-vSphere/7.0/vmware-vsphere-with-tanzu/GUID-40E5FD5C-E9A0-4D6D-8429-0DD5FE5F0E9F.html
https://4sysops.com/archives/how-to-configure-vmware-vsan-direct-on-vsphere-7-u1/
NEW QUESTION 36
An architect is designing a vSAN cluster.
Which storage controller option will yield optimal performance?
- A. Hugh queue depth
- B. Enable battery write-back caching
- C. Set caching to 50% read on the controller
- D. RAID 0
Answer: A
NEW QUESTION 37
A 4-node vSAN cluster is configured with an erasure coding storage policy. The Ensure Accessibility maintenance mode was selected. While performing the maintenance, a second node fails.
What will be the impact on the vSAN cluster?
- A. The VMs will be in a suspended state.
- B. The VMs will no longer be accessible.
- C. There will be no impact on performance.
- D. The performance will be degraded.
Answer: C
NEW QUESTION 38
An administrator wants to check the performance metrics for the workloads and their virtual disks that are running on a vSAN cluster, but no statistical charts are displayed in the vSphere client.
Why is this behavior being seen?
- A. vSAN proactive tests haven't been run yet.
- B. vSAN network diagnostic mode is not enabled.
- C. vSAN performance verbose mode is not enabled.
- D. vSAN performance service is turned off.
Answer: D
Explanation:
Some tools allow for measuring latency peaks. This unfortunately isn't ideal, as it can unfairly represent statistical outliers, which may very well occur when there is little to no I/O activity. The best way to understand the actual behavior of VM and application latencies is to observe in time based performance graphs. Depending on the level of detail, you may need to measure at the individual VMDK level. Become familiar with these graphs to determine what is normal, and what is not for that given application. This is where you can use built-in functionality of vCenter and the vSAN performance service metrics to gather this information.
NEW QUESTION 39
A 30-minute power maintenance window has been approved on Sunday. Due to a delay, the maintenance took 20 minutes longer to finish.
During this time, the vSAN administrator noticed that one of the clusters nodes was affected by a power shortage, as it was connected to an affected power source. The default vSAN storage policy has been applied.
What will be the status of the vSAN objects on the affected host immediately after it is recovered?
- A. All objects will remain accessible.
- B. All objects on the affected host will be lost.
- C. A rebuild of the affected objects will occur.
- D. The cluster will be partitioned and the vSAN host will need to be rejoined.
Answer: C
NEW QUESTION 40
A cache disk failure marked a vSAN disk group as failed, and the data is being rebuilt on other disk groups.
Which action should the vSAN administrator take to reduce the negative impact on the VMs?
- A. Setting the vSAN policy's IOPS limit for object value to 0 (unlimited)
- B. Enabling Resync Throttling
- C. Enabling Maintenance mode with no data evacuation
- D. Enabling automatic rebalance
Answer: B
NEW QUESTION 41
An administrator of "vsan-prod" cluster noticed the witness components of VMs are flagged as absent after a failed attempt to replace the vSAN Witness Host.
Which action should the administrator take to resolve this issue?
- A. Using the RVC command: vsan.resync_dashboard ~/computers/vsan-prod
- B. Placing the vSAN Witness Host in Maintenance Mode and adding to the vSAN cluster
- C. Running the vSAN Skyline Health check to ensure there are vSAN Object Health errors and executing the Repair Object Immediately option
- D. Upgrading the vSAN on-disk format
Answer: C
NEW QUESTION 42
multiple data centers, the customer relayed the following information:
* Highest possible mitigation during a host failure in terms of capacity.
* A constraint in this year's IT budget.
What should the architect recommend?
- A. Enable IOInsight Metrics.
A minimum cluster of 2 vSAN ROBO nodes. - B. Enable performance services.
A minimum cluster of 6 vSAN nodes. - C. Enable host build reserve.
A minimum cluster of 4 vSAN nodes. - D. Enable operations reserve.
A minimum cluster of 3 vSAN nodes.
Answer: C
Explanation:
Performance services and IOinsight Metrics used for performance analysis. Operation reserve for internal VSAN operations. https://blogs.vmware.com/virtualblocks/2020/09/24/effective-capacity-management-with-vsan-7-update-1/
NEW QUESTION 43
An architect collected the below technical requirements from the customer during a vSAN cluster design workshop:
* Maximize the vSAN datastore usable capacity.
* Deduplication and compression are required to help utilize available capacity efficiency.
* Ensure the highest level of resiliency wherever possible.
Which disk group configuration should the architect include in the design?
- A. Two disk groups per host, each with one cache tier flash disk and six capacity tier magnetic disks.
- B. Two disk groups per host, each with one cache tier flash disk and four capacity tier flash disks.
- C. One disk group per host, with one cache tier flash disk and four capacity tier flash disks.
- D. Two disk groups per host, each with one cache tier flash disk and six capacity tier flash disks.
Answer: A
NEW QUESTION 44
An administrator wants to enable encryption on an existing vSAN cluster that already contains virtual machines.
Which additional step should the administrator take to ensure no data is lost during the encryption process?
- A. Disable vSphere Distributed Resources Schedule (DRS) on the vSAN cluster.
- B. Ensure that the vSAN Encryption is enabled by default on the existing cluster to encrypt old and new data.
- C. Make vCenter Server trust the KMS, either by trusting the KMS or by uploading a KMS certificate.
- D. Select 'Erase disks before use' check box when enabling encryption on a vSAN cluster.
Answer: D
NEW QUESTION 45
In a vSAN stretched cluster, which value must be set in the vSAN policy if there is no requirement for data mirroring across sites?
- A. PFTT = 1
- B. PFTT = 0
- C. SFTT = 1
- D. SFTT = 0
Answer: B
Explanation:
PFTT can be seen as "site failures", and you can always only tolerate 1 at most. SFTT can be seen as host failures, and you can define this between 0 and 3 https://www.yellow-bricks.com/2018/03/19/vsan-stretched-cluster-pftt-and-sftt-what-happens-when-a-full-site-fails-and-multiple-hosts-fail/
NEW QUESTION 46
An architect is working with an All-Flash vSAN configuration and will be using the Flash Caching Devices in vSAN.
Which requirement is specifically needed for these devices?
- A. Read endurance
- B. IOPS
- C. Write endurance
- D. Capacity
Answer: C
Explanation:
Reference:
In all-flash configurations, vSAN uses the cache layer for write caching only. The write cache must be able to handle high write activities. https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-planning.doc/GUID-1D6AD25A-459A-43D6-8FF5-52475499D6A2.html
NEW QUESTION 47
An administrator is setting up vSAN file services on a vSAN cluster.
Which two security policies on the distributed port groups are automatically enabled in the process? (Choose two.)
- A. Promiscuous Mode
- B. MacLearning
- C. Jumbo Frames
- D. DVFiltering
- E. Forged Transmits
Answer: B,E
Explanation:
https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan.doc/GUID-CA9CF043-9434-454E-86E7-DCA9AD9B0C09.html MacLearning and Forged Transmits are enabled as part of the vSAN File Services enablement process for a provided DVS port group.
NEW QUESTION 48
Upon checking the latency goal under vSAN performance diagnostics, the vSAN Administrator sees this message displayed:
The increase in latency in the vSAN stack might be beyond expected limits.
Which two root causes can be identified to help remediate the issue? (Choose two.)
- A. vSAN encryption is enabled
- B. Large packet losses and retransmissions on the network layer
- C. One or more disk groups are congested
- D. Incorrect sizing of the disk groups capacity disks
- E. vSAN VMKemel portgroup is configured with the "Route based on IP hash" teaming policy
Answer: B,C
NEW QUESTION 49
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