[Free] 2018(May) Dumps4cert Examcollection VMware VCI510 Dumps with VCE and PDF Download 141-150

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VMware Certified Professional 5 – Data Center Virtualization for Instructors

Question No: 141 – (Topic 3)

A database administrator has requested that a virtual disk attached to a virtual machine running an I/O intensive database application be fully provisioned. The virtual disk was initially thin provisioned. Which two methods would accomplish this task? (Choose two.)

  1. Use Storage vMotion and change the disk type to Flat.

  2. Use the Inflate option in the Datastore Properties.

  3. Use Storage vMotion and change the disk type to Thick Provisioned Lazy Zeroed.

  4. Use Storage vMotion and change the disk type to Thick Provisioned Eager Zeroed.

Answer: B,D

Reference: vsphere-esxi-vcenter-server-50-storage-guide.pdf (page 130)

Question No: 142 – (Topic 3)

Which two solutions require Raw Device Mapping using virtual compatibility mode? (Choose two.)

  1. Array-based snapshots

  2. virtual machine snapshots

  3. Move the data using Storage vMotion

  4. SAN management agents

Answer: B,C

Reference: http://www.vmware.com/pdf/esx25_rawdevicemapping.pdf

Question No: 143 – (Topic 3)

How can you verify vStorage APIs for Array Integration (VAAI) is enabled?

  1. quot;VAAIquot; listed on the Hard Disk properties page for any VMDK stored on a compliant array

  2. quot;Hardware Accelerationquot; listed on the Hard Disk properties page for any VMDK stored on a compliant array

  3. quot;VAAIquot; column for any datastore created on a compliant array

  4. quot;Hardware Accelerationquot; column for any datastore created on a compliant array

Answer: D Explanation:

If you go to Host gt; Configuration gt; Storage, you can see the Hardware Acceleration Status in the panel on the right side.

For each storage device and datastore, the vSphere Client displays the hardware acceleration support status in the Hardware Acceleration column of the Devices view and the Datastores view.

Reference: http://kb.vmware.com/selfservice/microsites/search.do?language=en_USamp;cmd=displayKC


Question No: 144 – (Topic 3)

What are two consequences of deleting an VMFS datastore from an ESXi host? (Choose two.)

  1. The datastore is inaccessible from all connected ESX/ESXi hosts.

  2. The datastore and all virtual machines are removed from the storage device.

  3. The datastore and all virtual machines remain on the storage device.

  4. The datastore is only removed from that specific ESX/ESXi host.

Answer: A,B Explanation:

When you delete a VMFS datastore from an ESXi host, the datastore will be inaccessible from all connected ESXi hosts. The datastore and all the virtual machines residing in it will be removed from the storage device altogether.

Question No: 145 – (Topic 3)

Click the Exhibit button.

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Based on the exhibit, what is the reason that two of the paths are marked as standby?

  1. The other two paths were set to active.

  2. That is a characteristic of the storage array used.

  3. The active paths were set to preferred.

  4. The storage adapters need to be rescanned before those paths will be set to active.

Answer: B Explanation:

These paths are in standby mode because this is the characteristic of the storage array in use.

Topic 4, Deploy and Administer Virtual Machines and vApps

Question No: 146 – (Topic 4)

An administrator is editing the IP allocation policy for a vApp. Which three options are available? (Choose three.)

  1. Automatic

  2. Roaming

  3. Transient

  4. DHCP

  5. Fixed

Answer: C,D,E

Question No: 147 – (Topic 4)

Users are experiencing performance issues when updating their database hosted on a virtual machine. The administrator determines that disk I/O is high across one of the HBAs on the ESXi host containing the virtual machine.

What is the action will most likely correct the issue without significantly impacting other users or datastores?

  1. Manually configure the disk multipathing policy to Round Robin for the datastore

  2. Migrate the virtual machine to an NFS datastore using Storage vMotion

  3. Use Storage vMotion to migrate the virtual machine to a new VMFS5 datastore

  4. Map additional LUNs to the ESXi host and extend the datastores

Answer: A




Question No: 148 – (Topic 4)

Click the Exhibit button.

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ACME Catering Services is using esxtop to troubleshoot a performance problem with one of their ESXi 5.x hosts. Host disconnections from vCenter Server as well as sluggish performance when performing tasks on the host have been observed. Based on the output in the exhibit, how many vCPU#39;s have been assigned to FileServer01?

  1. 1

  2. 2

  3. 4

  4. 8

Answer: D Explanation:

As we can see at the top we have 14vCPUs, 7VMs. So we have 14 vCPUs to distribute between the 7 VMs. I’ve broken down my thought process into several steps after looking for hints:

->Hint 1. Fileserver01 has a huge %RDY value (113.49). This means

overprovisioning of vCPUs, excessive usage of vSMP or a limit (check %MLMTD) has been set.

->Hint 2. %MLMTD is 0.00. That means that the VM is not throttled. %MLMTD

definition: the percentage of time the vCPU was ready to run but deliberately wasn’t scheduled because that would violate the “CPU limit” settings. If larger than 0 the world is being throttled due to the limit on CPU.

->Hint 3. Check %CSTP. It is 9.28, when the others are zero. %CSTP definition:

Excessive usage of vSMP. Decrease amount of vCPUs for this particular VM. This should lead to increased scheduling opportunities.

Now, seeing how high RDY is we definately get a hint that FileSever01 is overprovisioned.

Add a value of 9.28 of %CSTP to the equation and that is definitely the case. In fact, with such a huge %CSTP I would guess that it is overprovisioned 8:1, meaning that it probably has a 8vcpus.

Both scenarios 1 and 2 have a total of 14 vCPUs. However, due to the fact of %CSTP of being 9.28 I’d probably go with scenario 01 and say 8 vCPUs instead of 4vCPUs.

Question No: 149 – (Topic 4)

Which of these factors indicates a high likelihood that the performance of a virtual machine disk is being constrained by disk I/O?

  1. A large number of commands issued

  2. A high device latency value

  3. A high disk used value

  4. A large number of kilobytes read and written

Answer: B Explanation:

Disk performance bottlenecks are usually due to either Disk queue length or Disk Latency

Question No: 150 – (Topic 4)

It appears that a single vCPU virtual machine in a resource pool called Production is having performance problems because it does not have enough CPU resources available.

Which two methods can be used to improve performance and reduce CPU contention of this virtual machine while maintaining compatibility with DRS? (Choose two.)

  1. Configure a CPU reservation for this virtual machine.

  2. Increase the CPU shares for the resource pool.

  3. Increase the CPU shares for the virtual machine.

  4. Increase the share priority setting for the Production resource pool.

Answer: A,C Explanation:

To improve performance and reduce CPU contention of this virtual machine, you need to configure a CPU reservation and increase CPU shares for this virtual machine.

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