Which two storage virtualization technologies can be used to mitigate the effects of latency during peak
load periods? (Choose two.)
A.
Virtual Volumes
B.
Virtual SAN
C.
Storage I/O Control
D.
Storage Distributed Resource Scheduler
Which two storage virtualization technologies can be used to mitigate the effects of latency during peak load periods?
Which two storage virtualization technologies can be used to mitigate the effects of latency during peak
load periods? (Choose two.)
Its A + C
I think it’s C and D
Storage I/O Control enables storage traffic shaping and priority within a vSphere environment. This is feature similar to Network I/O Control (NIOC) and compute resource pools. A congestion threshold can be enabled to guarantee storage traffic priority. A latency threshold can be configured to ensure a datastore is always achieving below a configured millisecond response time. If the datastore goes above that number, vSphere attempts to limit the I/O from all hosts to that particular datastore in an effort to lessen the latency. This setting can also be set to a dynamic percent threshold to better calculate the appropriate millisecond response type dependent on the type of storage used.
SDRS also provides affinity/anti-affinity rules for VMDKs; this means you can specify disk files that should reside together or apart. In general, it is best to leave them together unless you have a specific reason to separate them.
Once enabled, many features are available to be configured for how to automate your storage environment. Those options are as follows:
Free space threshold
Latency threshold
VM affinity/anti-affinity rules
Ok, C and D
C D
Passed 1V0-621 Exam Today,come to share some questions in my test:
QUESTION
What are two benefits that virtual machines provide over physical machines? (Choose two.)
A. virtual machines are encapsulate ,imporving options for disaster recovery.
B. virtual machies can access storage area network (san)
C. virtual machies can be provisioned faster than physical machines.
D. virtual machines can be isolated can be isolated from one another on the same network siwitch .
Answer: AC
QUESTION
The vRealize Suite provides high availability and business continuity disaster recovery for which of these three components? (Choose three)
A. Routers
B. Switches
C. Clusters
D. servers
E. Applications
Answer: CDE
QUESTION
Which solution monitors an organizations infrastructure for efficiency and performance across both the virtual and physical infrastructure .
A. V realize operations manager
B. V realize automation
C. Horizon (with view)
D. V cloud director
Answer: B
QUESTION 206
In which two situations should data collection level 4 be used for performance monitoring within vcenter server ? (choose two ).
A. For short term performance monitoring
B. For long term performance monitoring
C. when collecting all available metrics
D. when collecting the least number of metrics
Answer: AC
QUESTION
What are two mam components of a vSphere virtual network? (Choose two.)
A. Logical Router
B. Distributed Virtual Switch
C. Virtual Network Interface
D. Distributed Firewall
Answer: BC
QUESTION
What defines virtualization?
A. It is the process of scaling applications and licenses to support multiple hosts.
B. It is the process of moving virtual machines from one place to another.
C. It is the process of migrating physical components to virtual versions.
D. It Is the process of creating virtual versions of physical components.
Answer: C
QUESTION
What is the unit of storage management when virtualizing storage using virtual volumes
A. Raw device mapping
B. Lun
C. Vmfs datastore
D. Virtual machine and its disk
Answer: D
QUESTION
Which vSphere feature allows network traffic management in virtualized data center?
A. vMotion
B. Link aggregation
C. Network I/O Control
D. Storage I/O Control
Answer: C
QUESTION
What is the option to increase CPU resources for a virtual machine (VM)?
A. decreases the CPU Share value on the VM.
B. Move the VM into a different folder
C. vMotion the VM to an ESXi host with greater CPU capacity.
D. Add a vCPU to the VM using hot add where supported
Answer: A
QUESTION
Which challenge can vsphere help resolve by using snapshots?
A. Low utilization of drive c inside the virtual machine
B. Incompatibility between mtu settings
C. Disjointed dns namespace
D. Faulty windows update crashing server
Answer: C
QUESTION
What are two ways vsphere cluster, enabled with high availability HA and distributed resource scheduler DRS , differs from traditional failover solution? (Choose two)
A. After a vsphere HA cluster is set up, all virtual machines in the cluster get failover support without additional configuration.
B. Vsphere HA requires special software and drivers to be installed within the application or virtual machine.
C. If a host fails, vsphere DRS can migrate virtual machines to optimize for increased workloads.
D. Vsphere HA only protects availability of virtual machines installed on a stand alone esxi host.
Answer: AC
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