VMware VMware Certifications 3V0-624 Questions & Answers

• Question 81:

  A customer is deploying a mission-critical Oracle database with high SLA requirements, including high performance and high availability. The customer has chosen to purchase an All-Flash vSAN solution.

  Which three storage policies should be used? (Choose three.)

  A. RAID5/6 for data disk and RAID1 for OS disk with FTT=2

  B. IOPS limit and checksum should be enabled.

  C. RAID5/6 for OS disk and RAID1 for data disk with FTT=2

  D. Configure multiple disk stripes.

  E. Deduplication and Compression should be disabled.

  Correct Answer: ABE

  A) RAID 5/6 should be used for capacity, not performance (good for normal use case, but here high performance are required); B) IOPS limit should be enabled as switching path every few IO improve performance and reduce downtime should a path fail; C) RAID 1 preferred over RAID 5/6 for performance D) While having multiple disk stripes might generally improve performance, this is not the case with Oracle E) Dedup and compression are good for capacity, but impact performance

  The link provided by Todd adds some more info, although his answer can't be correct (it can't be both A and C).Some extra info here: https://storagehub.vmware.com/t/vmware-vsan/oracle-database-on-vmware-vsan-6-7/

• Question 82:

  A customer has storage arrays from two different storage vendors at two different sites. The customer warts to restore operations at the secondary site in the event of a disaster.

  Which VMware technology must be used to meet this requirement?

  A. vSphere replication

  B. vSphere Data Protection

  C. array-based replication

  D. vSphere Fault Tolerance

  Correct Answer: A

• Question 83:

  A solution architect has been tasked with designing a new environment that meets the needs of a growing company, and has obtained this information:

  1.

  The current capacity will be exhausted in 180 days, and the new infrastructure must be deployed and in production prior to that.

  2.

  The new servers have a 90-day delivery time.

  3.

  A data center for disaster recovery has been selected, and it is 20 miles away and connected by MPLS.

  4.

  The security team will continue to utilize its current investments and VM Encryption for the new environment.

  5.

  The backup team currently uses Data Domain, and reports show an 8:1 compression and deduplication ratio for backups.

  Based on the information obtained, which two statements are risks for the new design? (Choose two.)

  A. MPLS will be used to connect the two data centers.

  B. The Change Advisory Board will approve all changes.

  C. Current back up space will not be sufficient if using VM Encryption.

  D. The current firewalls will support the additional workloads.

  Correct Answer: CD

  They mention using existing security investments (i.e. Firewalls)

• Question 84:

  The system administrator team is planning to upgrade its vCenter Server 5.5 environments to version 6.5.

  1.

  Each vCenter 5.5 is pointing to a Single Sign On (SSO) server that has a dedicated virtual machine.

  2.

  The SSO servers are currently in independent SSO domains.

  3.

  During the upgrade process, the administrators would like to combine their two SSO domains into a single one.

  View the exhibit.

  

  Referring to the exhibit, which upgrade scenario would accomplish this?

  A. 1. Upgrade the Denver SSO server to a 6.5 PSC.

  2.

  Upgrade the Denver vCenter Server 5.5 to version 6.5.

  3.

  Use the migration utility to upgrade the New York vCenter Server to 6.5.

  4.

  Choose to join it to the Denver PSC.

  B. 1. Upgrade the Denver SSO server to a 6.5 PSC.

  2.

  Use the migration utility to upgrade the New York SSO server.

  3.

  Choose to join the existing SSO domain during the second upgrade.

  4.

  Upgrade both of the vCenter Servers to 6.5.

  C. 1. Upgrade both of the SSO servers to 6.5 PSCs.

  2.

  Upgrade both of the vCenter Servers to 6.5.

  3.

  Install a new 6.5 PSC in the same SSO domain as the Denver 6.5 PSC.

  4.

  Repoint the New York vCenter Server to the newly-installed PSC.

  D. 1. Install a new New York SSO 5.5 server in the same SSO domain as the Denver SSO server.

  2.

  Repoint the New York vCenter Server to the newly-installed SSO server.

  3.

  Upgrade both SSO servers to 6.5 PSCs.

  4.

  Upgrade both vCenter Servers to 6.5.

  Correct Answer: D

• Question 85:

  A company has requested assistance with a new cross-site failover design to support business-critical applications.

  1.

  It has two sites when are very well-connected, and latency is less than 5ms round trip.

  2.

  The customer requires that its applications be restarted even in the event of a total site failure.

  3.

  The applications must be kept online even when migrated during maintenance.

  4.

  Storage arrays at either site support both synchronous and asynchronous replication.

  Which two options are accurate application requirements for this scenario? (Choose two.)

  A. The design must ensure continuous application uptime even during a total site failure.

  B. The design must prioritize application availability.

  C. The design must ensure application recoverability at the second site.

  D. The applications are latency-sensitive.

  Correct Answer: BC

  Requirements are: The customer requires that its applications be restarted even in the event of a total site failure; The applications must be kept online even when migrated during maintenance. Therefore: A) No customer requires the application to be restarted in an event of site failure. A restart implies a short downtime, while answer A states "continuous availability", which is not true if a restart is involved (and false since the customer doesn't require 100% uptime and it's fine with a restart) B) Yes - 2 of the requirements are about having the application available during maintenance or after failover C) Yes - Same as A, application must be restarted on the secondary site if primary fails D) No - There are no info supporting this

• Question 86:

  After the vSAN iSCSI Target service is enabled, which statement about iSCSI networks is true?

  A. A separate VMkernel interface may be configured per target.

  B. A single VMkernel interface must be selected for all iSCSI targets.

  C. The vSAN iSCSI Target service always uses all Management VMkernel interfaces.

  D. The vSAN iSCSI Target service always uses the vMotion network.

  Correct Answer: A

  When you enable iSCSI target on VSAN, it will ask which vmk to use, and tells you that you can override it per target: http://www.virtualizationblog.com/creating-iscsi-target-in-vsan-6-5/

• Question 87:

  What topics need to be considered when creating a storage design?

  A. Application I/O requirements

  B. Growth rate

  C. Latency

  D. All of the above

  Correct Answer: D

• Question 88:

  A company is in the process of deploying a modern video-streaming application.

  1.

  The application is able to scale (expand and collapse) its steaming nodes in the form of CentOS 7.x 64bit virtual machines, based on demand.

  2.

  This IO-Intensive application has a high CPU demand and generates a significant number of disk operations (IOPS).

  3.

  To host the application, the company decided to implement a brand-new VMware cluster with vSphere 6.5

  4.

  The company would like a significant reduction in CPU utilization as well as a possible increase in throughput.

  Which virtual disk adapter should be recommended for the company's physical design?

  A. LSI Logic Parallel

  B. VMware Paravirtual

  C. BusLogic Parallel

  D. LSI Logic SAS

  Correct Answer: B

  "PVSCSI adapters are high-performance storage adapters that can provide greater throughput and lower CPU utilization. They are best suited for environments where hardware or applications drive a very high amount of I/O throughput, such as SAN environments."

• Question 89:

  A customer runs a vSphere cluster for hosted desktops with these capabilities:

  1.

  It allows end users to use any device to access the environment and to have access to all internal applications.

  2.

  The cluster hosts image-processing applications, and the images are processed during off hours.

  3.

  The architecture maximized the use of server hardware around the clock.

  4.

  The Active Directory default Group Policy for desktops is set to turn on the screensaver with animation after minutes of inactivity.

  5.

  The Active Directory default Group Policy is applied after a newly-deployed Window 10 desktop is joined to the Active Directory domain.

  6.

  The performance data show that during off hours, the virtual desktops are still consuming a significant number of CPU cycles.

  Minimize the CPU cycles, what would be VMware's recommendation for screensaver usage in the virtual machine?

  A. Replace Windows Animation with X-Server because it's a more efficient way of utilizing physical CPU cycles.

  B. Adjust the Active Directory policy so that the screensaver is not using any sort of animation.

  C. Keep the settings as they are enforced by Active Directory, because screensavers save GPU cycles on the ESXi host.

  D. Screensavers don't affect CPU usage, so the customer must ask the users to avoid using desktops during off-hours because they are taking CPU cycles from the image-processing application.

  E. Disable the screensaver when extra physical CPU cycles are consumed.

  Correct Answer: E

• Question 90:

  A customer wants to make its data available with a RPO of 10 minutes. Replication to the second data center will be done using the network.

  Which type of storage configuration should be used?

  A. NFS datastore on ESXi 6.0 with vSphere replication appliance 6.0

  B. VMFS datastore on ESXi 6.0 with vSphere replication appliance 6.5

  C. vSAN datastore on ESXi 6.0 with vSphere replication appliance 6.5

  D. VMFS datastore on ESXi 6.0 with vSphere replication appliance 6.0

  Correct Answer: C

  vSphere Replication 6.5 is supported on previous ESXi versions (such as 6.0). Only constraint is vCenter is running 6.5 as well (which can be assumed as it is not mentioned). vSphere Replication 6.5 release notes announce the 5 minute RPO (improved from 15 minutes previously) and specifically calls out the limitation of ESXi 6.0 only being supported for vSAN.

  https://docs.vmware.com/en/vSphere-Replication/6.5/rn/vsphere-replication-65-release-notes.html

  1.

  5-minute Recovery Point Objective (RPO) support for additional data store types