Download New Updated (June) VMWare VDCD510 Practice Test 111-120

Ensurepass

 

QUESTION 111

Options for running the vCenter Server include _____________.

 

A.

installed on a physical server.

B.

installed on a virtual machine.

C.

deploying the vCenter Virtual Appliance

D.

all of the above

 

Answer: D

Explanation:All of the listed options are supported.

 

 

QUESTION 112

Which of the following is a good way to set a memory reservation?

 

A.

Use reservations on all virtual machines to ensure that they are all guaranteed memory.

B.

Set a reservation to a virtual machine’s available memory to avoid creating a swap file.

C.

Never set a reservation on a virtual machine.

D.

Set a reservation only on a critical virtual machine, with the reservation set to the minimum amount of memory needed for acceptable performance.

 

Answer: D

Explanation:Setting reservations should be the exception and not the rule. The reservation should be set to the minimum amount required for acceptable performance.

 

 

QUESTION 113

vCenter Server Linked mode allows you to view up to 10 vCenter Servers in a single

 

 

 

VMware VDCD510 : Practice Test

window.

 

A.

True

B.

False

 

Answer: A

Explanation:vCenter Server will allow you to view up to 10 vCenter Servers and up to 30,000 virtual machines in a single view.

 

 

QUESTION 114

You have been asked to review a vSphere HA design. The admission control policy is set to “The number of host failures tolerated.” The virtual machines vary in size, and use of VM-based reservations is common. Which of the following should be recommended? (Choose three)

 

A.

The platform has reservations removed unless specifically required by an application vendor verified or workload verified requirement.

B.

The platform should be configured with reservations based on resource pools

C.

The platform should be configured with an appropriate slot size or the admission control policy changed to a percentage based policy.

D.

The platform should not be configured with reservations based on resource pools

 

Answer: ABC

Explanation:An admission control policy tells VMware HA how to calculate the resources it needs to reserve for a cluster. It uses a combination of memory and CPU reservation configuration or, if no configuration exists, a default low reservation. Chapter 4, The Importance of vMotion, VMware HA, and Fault Tolerance

 

 

QUESTION 115

When considering incorporating redundancy into design, which of the following should be

 

 

 

VMware VDCD510 : Practice Test

considered?

 

A.

The impact of the failure

B.

The likelihood of the failure

C.

RTO and RPO values

D.

All of these are correct

 

Answer: D

Explanation:The recovery time objective (RTO)–also known as the return to operation–is the amount of time it takes to restore a service after a failure has taken place. The recovery point objective (RPO) is the point in time to which the system needs to be restored following a failure. In some cases a business may be interested in functionality and just assume items such as redundancy. The infrastructure qualities help consider aspects considered as good design.

 

 

QUESTION 116

You are a virtualization consultant at a company that develops its own inhouse website trading systems. The new website will be deployed in a vSphere 5 platform, which consists of two clusters and four ESXi hosts (one for each project–the SDLC hosts–for all levels of testing and development prior to production deployment).

 

The production cluster has been configured for fully automated DRS and VMware HA. During the SDLC, the website platform was developed on a single development ESXi host inside a single VLAN. The system was successfully tested within the SDLC ESXi hosts and then deployed to the production cluster in a single vApp and a single VLAN.

 

Following a successful midweek, the new application starts to show signs of latency. Suddenly several applications across the cluster are being impacted by network latency issues. Metrics are collected and show that the amount of network traffic between the database and application servers of the new website platform are at 96% utilization on the physical switch links between ESXi hosts in the production cluster. What should you do?

 

A.

Recommend that the website platform be fixed and removed from the production system.

B.

Create a DRS affinity rule to ensure that the database and applications servers stay on the same ESXi host and do not traverse the physical network when communicating.

C.

Configure Network I/O Control to ensure that the network latency is alleviated between the database and applications servers.

 

 

 

VMware VDCD510 : Practice Test

 

Answer: B

 

 

QUESTION 117

It is a best practice to give a virtual machine a single virtual CPU unless there is a compelling reason to give a virtual machine more than one virtual CPU.

 

A.

True

B.

False

 

Answer: A

Explanation:A majority of your virtual machines can run with a single vCPU. Unless the application specifically requires multiple vCPUs, try to start with one.

 

 

QUESTION 118

When selecting a storage device, you do not need to consider _______ metrics.

 

A.

vendor

B.

throughput

C.

IOPS

D.

capacity

 

Answer: A

Explanation:IOPS, throughput, and capacity all have profound effects on how workloads will perform on a storage array. Although vendor is an important decision, it typically has no effect on workload performance.

 

 

QUESTION 119

VMware VDCD510 : Practice Test

You are working on a virtual guest design for the deployment of a critical business application. The software vendor has provided you with detailed application requirements for the projected workloads. Which of the following scaling approaches does this describe?

 

A.

Adaptive

B.

Predictive

 

Answer: B

Explanation:There are two types of scaling approaches in virtual platforms: adaptive and predictive. Both approaches are usable; however, a designer must work out which is the best approach for each project.

The adaptive approach to guest virtual machine design is a major advantage that virtualization technology brings to a datacenter. It allows a guest virtual machine to be created initially on a few metrics or high-level requirements (such as a limited budget) and scaled (that is, grown, not shrunk) through the virtual machine life cycle. In many cases, this scaling can be performed hot/live without outage/downtime to the running applications. The predictive approach, on the other hand, requires more planning and research, and you must know the metrics before deployment. The advantage here is that once the virtual machine has been deployed, only application maintenance is required. The application requirements are known.

 

 

QUESTION 120

A current state analysis is a project phase that is carried out to ensure that an architect understands the complete environment at the beginning of a project.

 

A.

True

B.

False

 

Answer: A

Explanation:A current state analysis gives an architect a way to examine the road ahead. Any oversights at this stage could have major implications for the project later on. By ensuring that the current state analysis is completed thoroughly, you can prevent many potential problems.

 

 

 

VMware VDCD510 : Practice Test

 

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