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VCAP 6.5 Design - 3V0-624. Q 7-13

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QUESTION 7

A customer has these requirements for storage:

 

- Protocol used must have a file based access.

- Protocol used must have built in native multipathing.

- protocol used must support authentication.

 

To meet these requirements, which protocol should be used for storage?

 

A. NFS v3

B. NFS v4.l

C. FCoE

D. iSCSI

 

Answer B

 

Question 8 has a picture, we will do those at the end

 

QUESTION 9

A solution architect has been tasked with designing a new environment for a company's growing needs, and has obtained this information:

 

- Uptime is critical during regular business hours when 95% of the transactions occur. Application uptime must be 99.9% during those hours.

- In a true Disaster, the business can withstand a day of data loss and half a day of downtime.

- The company is one year into a 5-year contact with the co-lo data center.

- The building that is currently occupied no hanger has any floor space available, but the company has 3 empty racks of space. The co-lo can provide up to 11KVA of power per rack.

- There are current contacts with Dell to provide servers and with Cisco to provide the network components.

- The network team has standardized on an end-to-end 10Gb network.

 

Based on this information, what are two requirementsfor the new design? (Choose two.)

 

A. RTO of 24 hours.

B. RTO of 12 hours.

C. The application must be available 99.9% during business hours.

D. 11KVA of power is available per rack.

 

Answer: BC

 

 

QUESTION 10

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

 

 

Answer: B

Replication appliance 6.5 supports 5 minutes RPO, vSAN 6.5 is required.

 

 

QUESTION 11

When implementing update policies for the vSphere environment, which would be the VMware- recommended way to update the vCenter Server Appliance (VCSA) when an underlying operating system (OS) patch is released?

 

A. Introduce a policy that requires a system administrator to check if a new appliance update (which might include an OS update) is available from the downloads section of MyVMware portal, and follow the VCSA documentation to apply the update.

B. Do nothing - the VCSA applies all OS updates automatically without any human interaction.

C. Introduce a policy that requires a system administrator to go online and check with the OS vendor to see if a new version is available. If it is,download it manually, log in to the VCSA with the root credentials, and proceed with the OS update.

D. Configure VMware Update Manager to download the OS update and apply it on a scheduled basis.

 

Answer A

 

QUESTION 12

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.

 

 

Answer: A

 

Question 13 has a picture, we will do those at the end

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7

B

 

9

B,C

- Uptime is critical during regular business hours when 95% of the transactions occur. Application uptime must be 99.9% during those hours.

- In a true Disaster, the business can withstand a day of data loss (24 H RPO) and half a day of downtime (12 H RTO).

 

The co-lo can provide up to 11KVA of power per rack =i could'nt careless about power as design factor.

 

10

C

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but answer B are make sense to because =

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If you set an RPO of x minutes, and the RPO is not violated, the latest available replication instance can never reflect a state that is older than x minutes. A replication instance reflects the state of a virtual machine at the time the synchronization starts.

Assume that during replication configuration you set the RPO to 15 minutes. If the synchronization starts at 12:00 and it takes five minutes to transfer to the target site, the instance becomes available on the target site at 12:05, but it reflects the state of the virtual machine at 12:00. The next synchronization can start no later than 12:10. This replication instance is then available at 12:15 when the first replication instance that started at 12:00 expires.

If you set the RPO to 15 minutes and the replication takes 7.5 minutes to transfer an instance, vSphere Replication transfers an instance all the time. If the replication takes more than 7.5 minutes, the replication encounters periodic RPO violations. For example, if the replication starts at 12:00 and takes 10 minutes to transfer an instance, the replication finishes at 12:10. You can start another replication immediately, but it finishes at 12:20. During the time interval 12:15-12:20, an RPO violation occurs because the latest available instance started at 12:00 and is too old.

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Great job offside ! Splitting the anwers in serval posts is much more efficient to answer and search for answers and complaint on them than before.

 

I have complaints

 

10- According to

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If you change the target site to a site that does not use Virtual SAN, you cannot set the RPO value to less than 15 minutes

 

So then the answer is C

 

11- B makes no sense (obviously) C also because we are talking about the vCSA not the windows one because of that VUM updates or patches vCSA so patches or updates apply to the whole appliance not just the undelying OS (SUSE Linux or Photon) In fact from 6.5 the underlying OS is VMware's photon (Like NSX Manager/Controllers from 6.3.4 it is also photon based) so then the correct answer is A. I am sure VUM can not update, upgrade or path the underlying photon OS but an update/upgrade or patch of VCSA which can affect the underlying OS. If I am wrong please confirm with a link evidencing my error. Reference doc

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does not mention to patch the underlying OS

 

Managing Packages in Photon OS

 

All of the packages with VCSA 6.5 are managed by VMware and updated with updates applied with VCSA 6.5 updates. Updating these or manipulating them manually isn’t supported. However, you can take a look at the installed packages which also is interesting to see the underlying packages installed with VCSA 6.5. Photon in the minimal installation doesn’t have a full package manager like yum installed. Instead it manages packages with an open source, yum-compatible package manager called tdnf, for Tiny DNF. Tdnf keeps the operating system as small as possible while preserving yum’s robust package-management capabilities. On Photon OS, tdnf is the default package manager for installing new packages. It is a C implementation of DNF package manager.

 

Source:

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12- Correct answer is A so offside is right.

 

@sagitarius2k: Take a look at this document and see how when you create a target you can choose a vmkernel interface from all the interfaces present in the host

 

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Edited by popyjos

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@popyjos

 

Regarding the below, my understanding is that vSAN 6.5 is required for a replication of less than 15 minutes, the hosts are on ESXI 6 therefore the vSAN version cannot be 6.5, please let me know what you think.

 

 

10- According to

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If you change the target site to a site that does not use Virtual SAN, you cannot set the RPO value to less than 15 minutes

 

So then the answer is C

Edited by offside

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@popyjos

 

Regarding the below, my understanding is that vSAN 6.5 is required for a replication of less than 15 minutes, the hosts are on ESXI 6 therefore the vSAN version cannot be 6.5, please let me know what you think.

 

 

10- According to

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If you change the target site to a site that does not use Virtual SAN, you cannot set the RPO value to less than 15 minutes

 

So then the answer is C

 

Nice for pointing that

 

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B

Edited by sagitarius2k

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@popyjos

 

Regarding the below, my understanding is that vSAN 6.5 is required for a replication of less than 15 minutes, the hosts are on ESXI 6 therefore the vSAN version cannot be 6.5, please let me know what you think.

 

 

10- According to

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If you change the target site to a site that does not use Virtual SAN, you cannot set the RPO value to less than 15 minutes

 

So then the answer is C

 

yeah i had C

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Good job people,

 

Thanks offside for your infomation You are totally right.

 

Thank you very much sagitarius2k for the KB article.

 

THE RIGHT ANSWER IS B !!! NOT C (I was wrong)

 

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Again great job team !

Edited by popyjos

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Good job people,

 

Thanks offside for your infomation You are totally right.

 

Thank you very much sagitarius2k for the KB article.

 

THE RIGHT ANSWER IS B !!! NOT C (I was wrong)

 

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Again great job team !

 

Hi,

 

Ans in my view should be C. As ESXi 6.5 is required for non VSAN datastore to achieve the RPO of 5 mins.

 

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Hi atk7

 

Yes you are right. The release notes states "The 5 minute RPO requires the source host to be ESXi 6.0 or later for VSAN, and ESXi 6.5 for other supported datastores" but the problem is C can not also be a solution because offside is right stating that "vSAN 6.5 is required for a replication of less than 15 minutes, the hosts are on ESXI 6 therefore the vSAN version cannot be 6.5"

 

So then what is the right answer ???

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Hi atk7

 

Yes you are right. The release notes states "The 5 minute RPO requires the source host to be ESXi 6.0 or later for VSAN, and ESXi 6.5 for other supported datastores" but the problem is C can not also be a solution because offside is right stating that "vSAN 6.5 is required for a replication of less than 15 minutes, the hosts are on ESXI 6 therefore the vSAN version cannot be 6.5"

 

So then what is the right answer ???

 

Hi,

 

Virtual SAN 6.0 storage and later is required to achieve 5 min RPO with vSphere Replication 6.5. Please refer the link. So the right ans in my view is C.

 

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Yes you are totally right ! The correct answer is C

 

Thank you very much for correcting our error

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Hi atk7

 

Yes you are right. The release notes states "The 5 minute RPO requires the source host to be ESXi 6.0 or later for VSAN, and ESXi 6.5 for other supported datastores" but the problem is C can not also be a solution because offside is right stating that "vSAN 6.5 is required for a replication of less than 15 minutes, the hosts are on ESXI 6 therefore the vSAN version cannot be 6.5"

 

So then what is the right answer ???

 

You're thinking to specifically about ESXi 6.0, does not mean vSAN 6.0, vSAN 6.2 supports 5 min RPO on ESXi 6.0... This is the only logical conclusion as all other DS types NEED ESXi 6.5.

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