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VMware vSphere 8.x Advanced Design Sample Questions (Q91-Q96):

NEW QUESTION # 91
An architect is responsible for the design of a greenfield vSphere-based solution for hosting a new web-based application. The customer has provided the following high-level information:
The solution will host a highly transactional web application that is spread across multiple workloads within a vSphere cluster.
The workloads should be distributed evenly across the hosts to maximize the performance and availability of the web application.
The architect has made various design decisions, including:
The solution will deploy vSphere distributed switches for all virtual networking.
Which network load balancing method should the architect document in the physical design to meet the requirements?

A. Route Based on IP Hash
B. Route Based on Physical NIC Load
C. Route Based on Originating Virtual Port
D. Route Based on Source MAC Hash

Answer: B

Explanation:
Based on VMware vSphere 8.x Advanced documentation and the customer requirements, the architect is designing a greenfield vSphere-based solution for a highly transactional web application hosted across multiple workloads in a vSphere cluster. The workloads must be distributed evenly across hosts to maximize performance and availability, and the solution will use vSphere Distributed Switches (vDS) for virtual networking. The architect must select a network load balancing method for the physical design that aligns with these requirements.
Requirements Analysis:
* Highly transactional web application: The application requires high network performance and low latency, as transactional workloads are sensitive to network bottlenecks.
* Workloads spread across multiple workloads in a vSphere cluster: The application runs on multiple VMs, implying a need for balanced resource utilization across hosts.
* Workloads distributed evenly across hosts: This suggests the use of vSphere features like Distributed Resource Scheduler (DRS) for compute load balancing and a network load balancing method to ensure even distribution of network traffic across NICs.
* Maximize performance and availability: The network design must avoid bottlenecks, ensure redundancy, and dynamically adapt to traffic demands to maintain application performance and uptime.
* vSphere Distributed Switches: vDS provides advanced networking features like Network I/O Control (NIOC), Link Aggregation Control Protocol (LACP), and dynamic load balancing, which are critical for meeting performance and availability goals.
Evaluation of Network Load Balancing Methods:
The load balancing method determines how traffic from VMs is distributed across the physical NICs (uplinks) in a vDS. The options are:
* A. Route Based on IP Hash:
* Description: Distributes traffic based on a hash of the source and destination IP addresses, requiring Link Aggregation Control Protocol (LACP) or EtherChannel configuration on the physical switch.
* Why incorrect: While IP Hash can distribute traffic across NICs, it requires complex switch configuration and is less effective for dynamic load balancing in a highly transactional environment. It does not adapt to real-time NIC load, which could lead to uneven traffic distribution and potential bottlenecks, failing to maximize performance. It also increases complexity without clear benefits for this use case.
* B. Route Based on Physical NIC Load:
* Description: Also known as Load-Based Teaming (LBT), this method dynamically balances traffic across uplinks based on the actual load of each physical NIC, reassigning VM traffic if a NIC becomes congested (e.g., exceeds 75% utilization over a 30-second window).
* Why correct: LBT is ideal for a highly transactional web application, as it ensures even distribution of network traffic across NICs, maximizing performance by preventing any single NIC from becoming a bottleneck. It supports availability by leveraging multiple NICs for redundancy and dynamically adapting to traffic patterns, aligning with the requirement to distribute workloads evenly. LBT works seamlessly with vDS and does not require complex switch configurations, making it suitable for a greenfield design. Combined with features like NIOC, it ensures optimal network resource utilization for the application.: VMware vSphere 8 networking documentation recommends Route Based on Physical NIC Load for dynamic load balancing in performance-sensitive environments.
C: Route Based on Originating Virtual Port:
Description: Assigns each VM's traffic to a physical NIC based on the VM's virtual port ID on the vDS, distributing traffic statically across uplinks.
Why incorrect: This method is simple and requires no switch configuration, but it does not account for actual NIC load, potentially leading to uneven traffic distribution if some VMs (e.g., transactional workloads) generate more traffic than others. It fails to maximize performance for a highly transactional application, as it cannot dynamically adapt to traffic spikes or ensure even NIC utilization.
D: Route Based on Source MAC Hash:
Description: Distributes traffic based on a hash of the VM's source MAC address, statically assigning traffic to uplinks.
Why incorrect: Similar to Originating Virtual Port, this method is static and does not consider real-time NIC load, risking uneven traffic distribution and potential bottlenecks. It is less effective for a highly transactional application where dynamic load balancing is needed to ensure performance and availability.
Why B is the Best Choice:
Performance optimization: Route Based on Physical NIC Load dynamically balances traffic based on NIC utilization, ensuring no single NIC is overwhelmed, which is critical for a highly transactional web application with variable traffic patterns.
Even distribution: By monitoring and redistributing traffic, LBT aligns with the requirement to distribute workloads evenly across hosts, complementing DRS for compute resources with balanced network utilization.
Availability: LBT leverages multiple NICs for redundancy, ensuring traffic failover if a NIC fails, supporting the high availability needs of the application.
vDS compatibility: LBT is fully supported on vDS and integrates with features like NIOC to prioritize application traffic, enhancing performance and resilience.
Simplicity: Unlike IP Hash, LBT requires no complex switch configuration, making it ideal for a greenfield design.
Example Configuration:
vDS Setup: Configure a vDS with multiple uplink port groups for management, vMotion, and workload traffic (web application VMs).
Load Balancing: Set Route Based on Physical NIC Load for the workload port group to dynamically balance the application's transactional traffic across available NICs (e.g., 2-4 x 10 GbE NICs per host).
NIOC: Use Network I/O Control to prioritize web application traffic over other traffic types (e.g., vMotion) during contention.
Redundancy: Ensure at least two NICs per port group for failover, aligning with availability requirements.

NEW QUESTION # 92
An architect is designing a vSphere-based application hosting solution in a brownfield site.
The following information has been provided during the requirements gathering workshop:
The solution should support 5,000 compute workloads across two physical sites.
The CFO has approved budget for the purchase of new server and network hardware only.
The existing storage array is currently Fibre Channel connected with 2 x 8 Gbps interfaces to a dedicated Storage Area Network (SAN) fabric.
The existing storage array does not support integration with vSphere API for Storage Awareness.
The existing storage array can be configured to support NFS storage.
The existing vSphere administration team will responsible for operational management of the new solution.
Which storage technology should the architect recommend based on these requirements?

A. iSCSI
B. VMware vSAN
C. Fibre Channel
D. vSphere Virtual Volumes (vVols)

Answer: C

Explanation:
Fibre Channel is the Recommended Storage Technology for the Brownfield vSphere Deployment Given the constraints of the brownfield site, the existing infrastructure, and the approved budget, the architect should recommend leveraging the existing Fibre Channel storage technology.
Here's the reasoning based on the provided requirements:
Utilize Existing Storage Array:The crucial constraint is that the budget is only for new server and network hardware, explicitly excluding the purchase of a new storage array. The solutionmustutilize the existing storage array.
Existing Fibre Channel Connectivity:The current storage array is already connected via Fibre Channel with a dedicated SAN fabric (2 x 8 Gbps interfaces). This existing infrastructure can be directly leveraged with new servers equipped with Fibre Channel HBAs.
Budget Alignment:Reusing the existing Fibre Channel SAN aligns with the budget approval for only new server and network hardware (to connect the servers to the existing SAN). Introducing a different storage technology like iSCSI or NFS as the primary method would likely require significant network infrastructure changes or additions beyond standard server networking, which may not be covered by the approved budget for "new server and network hardware only." While the arraycansupport NFS, the existing high-speed, dedicated storage connectivity is Fibre Channel.
Incompatibility with vVols:The existing storage array does not support vSphere API for Storage Awareness (VASA), which is a mandatory requirement for implementing vSphere Virtual Volumes (vVols). Therefore, vVols is not a viable option with the current storage hardware.
vSAN Not Applicable to Existing Array:VMware vSAN is a software-defined storage solution that pools local storage from ESXi hosts. It does not directly utilize external Fibre Channel SAN arrays as its primary storage pool in the standard configuration. Implementing vSAN would require a significant investment in server local storage, which falls outside the scope of using theexisting storage array.
Manageability:The existing vSphere administration team is responsible for operational management. Fibre Channel storage is a mature and commonly used storage technology in vSphere environments, meaning the existing team is likely to have the necessary skills to manage it.
While the existing arraycanbe configured for NFS, leveraging the existing Fibre Channel connectivity is the most direct and budget-aligned approach given that the SAN fabric and FC interfaces are already in place and the budget is restricted to server and network hardware for connectivity.

NEW QUESTION # 93
What do capacity requirements help determine?

A. The network bandwidth and data transfer speeds.
B. The number of system administrators needed to manage the system.
C. The storage and compute resources needed for the system.
D. The expected maximum load the system can handle.

Answer: D

NEW QUESTION # 94
An architect is tasked with creating a design for a vSphere-based solution.
Reviewing requirements with the security team, the architect makes the following design decision:
ESXi hosts in the environment will enable shell sandbox for SSH connections and the local ESXi shell What is an implication of the design decision to enable shell sandboxing?

A. All commands executed in the sandbox shell will be logged
B. Only administrative accounts can access the sandbox shell
C. The vSphere 8 hosts will operate in strict lockdown mode
D. Only certain commands can be executed in the sandboxed shell

Answer: D

Explanation:
When the shell sandbox is enabled on ESXi hosts, it restricts the execution of commands within the shell to ensure that only authorized or safe commands are allowed. This provides a level of isolation that limits the potential for accidental or malicious commands to be run in the shell, enhancing security while still providing necessary administrative access.

NEW QUESTION # 95
Refer to the exhibit.

An architect is assigned a new project to design a VMware hybrid cloud solution.
The project is following a proven design methodology following the V-Model of systems engineering and verification. The selected methodology follows these phases: Assess, Design, Deploy and Validate.
Which activity would be conducted during the Design phase?

A. The architect resolves configuration issues and addresses concerns
B. The architect defines the scope of the project
C. The architect helps stakeholders learn the mechanics of the solution
D. The architect conducts a series of group interviews with stakeholders

Answer: D

Explanation:
Design phase: The purpose of the Design phase is to define how the solution will meet the specific requirements. During this phase, the architect works closely with stakeholders to understand their needs and translate those needs into a technical design. A key activity in this phase often involves refining the solution details through interviews and discussions with key stakeholders to ensure that the design aligns with the business and technical requirements.

NEW QUESTION # 96
......

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Highly Authoritative 3V0-21.23 Exam Prep Easy for You to Pass 3V0-21.23 Exam

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VMware vSphere 8.x Advanced Design Sample Questions (Q91-Q96):

3V0-21.23 Latest Exam Question - Pass Guaranteed 3V0-21.23 - First-grade Certification VMware vSphere 8.x Advanced Design Exam Dumps

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