Which is a benefit of using vSAN stretched clusters in VMware Cloud Foundation?
Correct : A
To enable high availability of virtual machines across different availability zones.
vSAN stretched clusters provide high availability by replicating virtual machine data across two geographically separated sites (or availability zones). This ensures that in the event of a failure at one site, the virtual machines can continue running from the other site, minimizing downtime and ensuring business continuity. The solution is particularly useful for disaster recovery and fault tolerance across multiple sites, meeting the requirement for high availability across different availability zones.
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An architect is documenting the logical design for a new vSphere solution. The following requirements have been provided to the architect by the customer for the design:
The solution must be deployed in two locations: DC1 and DC2
The solution must limit the impact radius of accidental changes by administrators
The solution must meet a recovery time objective (RTO) of four (4) hours and recovery point objective (RPO) of 24hours
The solution must allow workloads to run in both DC1 and DC2 during normal operations
The solution must allow workloads to be moved bi-directionally between DC1 and DC2
The solution must use hyper-converged infrastructure for the virtual machine storage
The customer has also confirmed that the network connection between DC1 and DC2 has a 10Gbps bandwidth with a maximum round trip latency of 4ms.
The architect recommends the following design decision:
Use separate clusters in DC1 and DC2 to form a multi-region design
What should the architect include as justification for this design decision?
Correct : B
Separate clusters in DC1 and DC2 provide logical isolation between the two data centers. This means that an accidental change or misconfiguration in one cluster (e.g., DC1) will not affect the other cluster (e.g., DC2). This isolation meets the customer's requirement to limit the impact radius of accidental changes by administrators. By having separate clusters, the risk of cross-site or cross-cluster disruptions is minimized, ensuring better fault tolerance and administrative control.
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What is an example of a performance design quality?
Correct : A
Performance design quality refers to ensuring that the system can handle the expected load and operate efficiently under varying conditions. This includes the ability to handle spikes in demand, such as CPU usage, without degradation in service. The statement 'The solution must scale to meet spikes in CPU demand' addresses how the system will handle sudden increases in workload, ensuring that the solution meets performance expectations even under peak conditions.
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An architect is responsible for designing a vSphere-based solution for a customer. The customer has the following requirements:
The solution must provide redundancy and load balancing for storage traffic
The solution must tolerate at least one failure
There must be no single point of failure in the solution
Which three considerations regarding physical host design should the architect analyze when making storage related design decisions? (Choose three.)
Correct : C, D, E
Use an active-active array for Fibre Channel storage-based VMFS datastores
An active-active array provides redundancy and load balancing by allowing multiple paths to be active at the same time, ensuring better performance and fault tolerance. This supports the requirement for redundancy and no single point of failure by ensuring that storage traffic can be distributed across multiple paths to different storage controllers.
Configure a minimum of two paths to every LUN or datastore
Having multiple paths to every LUN or datastore is essential for ensuring redundancy in the storage path. In case one path fails, the system can continue to function by using the other path, meeting the requirement for tolerance to at least one failure.
Configure a minimum of four paths to every LUN or datastore
Configuring four paths further increases redundancy, ensuring that the storage system can tolerate multiple path failures while still maintaining access to the LUN or datastore. This improves load balancing and provides greater fault tolerance.
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Which two vSphere cluster-related design details would an architect document in a physical design? (Choose two.)
Correct : B, D
The solution will set the das.isolationaddress advanced setting to 192.168.100.2.
The das.isolationaddress setting is used to specify an address for use in VMware HA (High Availability) to detect isolation. This setting ensures that the cluster can determine if a host is isolated from the network. The architect would document this setting as part of the cluster's network configuration, particularly to handle the isolation detection for the HA configuration.
The solution will configure vSphere High Availability (HA).
vSphere HA provides high availability for virtual machines by monitoring the health of hosts in the cluster and automatically restarting VMs on other hosts in the event of a host failure. Configuring HA is a key part of designing a resilient vSphere cluster, and this would be documented as a critical part of the physical design to ensure the availability of workloads.
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