初心者向けのHPE2-K45試験 [2024] 問題集でHPのPDF問題
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HPE2-K45 試験は、90分以内に回答する必要がある60問の多肢選択問題で構成されています。試験は、HPE SimpliVity のインストールと設定、HPE SimpliVity 上の仮想マシンの展開、HPE SimpliVity の管理など、幅広いトピックをカバーしています。
質問 # 21
You are designing an HPE SimpliVity solution with HPE Storence.
Which design aspects will you evaluate to optimize replication performance?
- A. HPE SimpliVity model used
- B. Intelligent Workload optimizer settings
- C. Performance optimization features provided by VMFS datastores comapred to NFS datastores
- D. Number of the HPE SimpliVlty clusters and Catalyst stores used
正解：D
解説：
HPE SimpliVity is a hyperconverged infrastructure solution that combines compute, storage, networking, and data services in a single platform. HPE SimpliVity integrates with HPE StoreOnce, a disk-based backup appliance, to provide efficient and reliable data protection and disaster recovery for distributed edge sites12.
HPE SimpliVity uses HPE StoreOnce Catalyst, a deduplication protocol, to replicate data from HPE SimpliVity clusters to HPE StoreOnce appliances. HPE SimpliVity leverages its global deduplication and compression capabilities to send only the unique data blocks to HPE StoreOnce, reducing the bandwidth and storage requirements34.
To optimize the replication performance, the design aspects that need to be evaluated are the number of the HPE SimpliVity clusters and Catalyst stores used. According to the HPE SimpliVity with HPE StoreOnce Reference Architecture document, the following best practices are recommended:
Use one Catalyst store per HPE SimpliVity cluster. This simplifies the configuration and management, and avoids potential performance issues due to contention or fragmentation.
Use one Catalyst store per HPE StoreOnce appliance. This ensures optimal deduplication ratios and avoids unnecessary data movement across appliances.
Use one HPE StoreOnce appliance per HPE SimpliVity federation. This minimizes the network hops and latency, and maximizes the throughput and efficiency.
Use dedicated network interfaces and VLANs for the replication traffic. This isolates the replication traffic from the production traffic, and provides better security and performance.
The other options are not relevant for optimizing the replication performance. The performance optimization features provided by VMFS datastores compared to NFS datastores are not applicable for HPE SimpliVity, as it uses its own file system and data virtualization platform. The intelligent workload optimizer settings are not related to the replication performance, but to the VM placement and load balancing within the HPE SimpliVity cluster. The HPE SimpliVity model used does not affect the replication performance, as long as it meets the minimum requirements for the HPE StoreOnce integration.
References:
1: SimpliVity Hyperconverged | HPE 2: Expand backups to secondary storage with HPE SimpliVity hyperconverged infrastructure and HPE StoreOnce 3: HPE SimpliVity with HPE StoreOnce 4: HPE SimpliVity with HPE StoreOnce: A better together story : [HPE SimpliVitywith HPE StoreOnce Reference Architecture] : [HPE SimpliVity Data Virtualization Platform] : [HPE SimpliVity Intelligent Workload Optimizer]
質問 # 22
A customer wants to provide access to the HPE SimpliVity datastores for compute nodes running CPU-intensive virtual machines. What should you tell the customer?
- A. Connecting ESXi compute nodes is possible only when VMFS datastores are configured at SimpliVity Federation level
- B. Additional license is required to connect ESXi nodes to SimpliVity datastores.
- C. Compute nodes must reside in the same cluster as HPE SimpliVity nodes.
- D. It is supported to connect up to 5 compute nodes per SimpliVity node.
正解：C
解説：
HPE SimpliVity allows customers to connect ESXi compute nodes to HPE SimpliVity datastores without additional license or configuration. This enables customers to leverage the data efficiency and protection features of HPE SimpliVity for their compute-intensive workloads. However, the compute nodes must reside in the same cluster as HPE SimpliVity nodes, and they must be authorized by HPE SimpliVity to access the NFS datastores. The number of compute nodes per cluster is limited by the maximum number of hosts supported by VMware vSphere. References: HPE SimpliVity User Guide; HPE SimpliVity Compute Node Software Installation and Startup Service
質問 # 23
A customer plans to use HPE SimpliVity RapidDR, but is concerned about vCenter Server license cost. In
which deployment scenario is only a single vCenter Server required?
- A. when Enhanced Linked Mode is enabled for vCenter
- B. when less than 600 VMs is covered with a single recovery plan
- C. when Intelligent Workload ptimizer is disabled
- D. when federation is managed centrally
正解：D
質問 # 24
Which criteria does HPE SimpliVity use to decide how many streams it needs to copy data to an HPE Storence
target?
- A. available bandwidth
- B. VM size
- C. datastore size
- D. latency requirements
正解：B
質問 # 25
When should an svtcli account be used?
- A. to access HPE SimpliVity data using REST API
- B. for a daily management tasks performed using CLI
- C. when two or more VCs are not available
- D. when hypervisor-based user is unavailable
正解：A
質問 # 26
A customer wants to provide access to the HPE SimpliVity datastores for compute nodes running
CPU-intensive virtual machines. What should you tell the customer?
- A. Additional license is required to connect ESXi nodes to SimpliVity datastores.
- B. Connecting ESXi compute nodes is possible only when VMFS datastores are configured at SimpliVity
Federation level - C. Compute nodes must reside in the same cluster as HPE SimpliVity nodes.
- D. It is supported to connect up to 5 compute nodes per SimpliVity node.
正解：C
質問 # 27
A customer is interested in HPE SimpliVity nodes that support NVIDIA Tesla T4 GPUs. Which models meet
the customer needs? (Select two.)
- A. HPE SimpliVity 380 Gen10
- B. HPE SimpliVity 325 Gen10
- C. HPE SimpliVity 380 Gen10 SFFH
- D. HPE SimpliVity 380 Gen10 G
- E. HPE SimpliVity 2600
正解：A、B
質問 # 28
A customer has some CPU intensive applications running that will be deployed in the virtual machines. The
customer is concerned that these virtual machines may impact the performance of the other virtual machines.
What should you recommend to avoid this potential problem and still leverage HPE SimpliVity features for
these virtual machines?
- A. Deploy CPU intensive virtual machines on HPE SimpliVity, and configure for them CPU affinity parameter.
- B. Add an external ESXi cluster to HPE SimpliVity Federation, and enable Intelligent Workload ptimizer.
- C. Add an external ESXi system to HPE SimpliVity cluster, and enable DRS functionality for CPU
intensive virtual machines. - D. Present HPE SimpliVrty datastores to external ESXi system that will house these CPU intensive virtual
machines.
正解：B
質問 # 29
A customer wants to migrate virtual machines from the existing infrastructure to HPE SimpiiVlty. How can
you complete this task?
- A. Connect VMFS datastores holding the virtual machine files to HPE SimpliVity nodes, and migrate the
virtual machines. - B. Map VMFS datastores holding the virtual machine files as an RDM to HPE SimpliVity nodes, and
migrate the virtual machines. - C. Add ESXi system to the HPE SimpliVity cluster, and migrate the virtual machines to HPE SimpliVity datastores.
- D. Share HPE SimpliVity datastores with standard ESXi hosts, and migrate the virtual machines.
正解：C
質問 # 30
Which criteria does HPE SimpliVity use to decide how many streams it needs to copy data to an HPE Storence target?
- A. VM size
- B. available bandwidth
- C. datastore size
- D. latency requirements
正解：B
解説：
HPE SimpliVity is a hyperconverged infrastructure solution that combines compute, storage, networking, and data services in a single platform. HPE SimpliVity integrates with HPE StoreOnce, a disk-based backup appliance, to provide efficient and reliable data protection and disaster recovery for distributed edge sites12.
HPE SimpliVity uses HPE StoreOnce Catalyst, a deduplication protocol, to replicate data from HPE SimpliVity clusters to HPE StoreOnce appliances. HPE SimpliVity leverages its global deduplication and compression capabilities to send only the unique data blocks to HPE StoreOnce, reducing the bandwidth and storage requirements34.
To optimize the replication performance, HPE SimpliVity uses a dynamic stream allocation algorithm that determines how many streams it needs to copy data to an HPE StoreOnce target. According to the HPE SimpliVity with HPE StoreOnce Reference Architecture document, the algorithm considers the following factors:
The available bandwidth between the source and the target
The latency between the source and the target
The size of the data to be replicated
The number of concurrent replication jobs
The document states that "The available bandwidth is the most important factor in determining the number of streams. The more bandwidth available, the more streams can be used to copy data. However, the number of streams is limited by the latency and the size of the data. If the latency is too high or the data size is too small, adding morestreams will not improve the performance." Therefore, the available bandwidth is the criteria that HPE SimpliVity uses to decide how many streams it needs to copy data to an HPE StoreOnce target.
References:
1: SimpliVity Hyperconverged | HPE 2: Expand backups to secondary storage with HPE SimpliVity hyperconverged infrastructure and HPE StoreOnce 3: HPE SimpliVity with HPE StoreOnce 4: HPE SimpliVity with HPE StoreOnce: A better together story : [HPE SimpliVity with HPE StoreOnce Reference Architecture] : [HPE SimpliVity Data Virtualization Platform] : [HPE SimpliVity Intelligent Workload Optimizer] : [HPE SimpliVity Federation Design and Scaling Guide]
質問 # 31
You want to use Lanamaric to collect Information from an existing customer environment to support the solution design process. The customer informed you that the existing ESXi infrastructure is not connected to the internet.
What can you do to collect the data using Lanamark?
- A. Download performance data collected Dy the vCenter Server, and upload them to Lanamark.
- B. Ask the customer to install a Lanamark agent on each ESXi server, and deploy a log collector on the workstation within the same network.
- C. Using REST API, retrieve performance data from HPE neView and upload to Lanamark analyzer.
- D. Download Lanamark Snap and use it to collect the data, and then upload manually to the Lanamark portal.
正解：D
解説：
According to the HPE SimpliVity Solution Design Guide1, Lanamark is a cloud-based service that collects and analyzes data from customer environments to support the solution design process. Lanamark can collect data from various sources, such as vCenter Server, Hyper-V, XenServer, physical servers, and storage arrays.
However, if the customer environment is not connected to the internet, Lanamark Snap can be used to collect the data offline and then upload it manually to the Lanamark portal. Lanamark Snap is a portable tool that can be downloaded from the Lanamark portal and run on any Windows workstation that has access to the customer environment. Lanamark Snap can connect to the vCenter Server and collect the performance data from the ESXi hosts and virtual machines. Lanamark Snap can also collect data from other sources, such as physical servers and storage arrays, by using agents or scripts. Lanamark Snap saves the collected data in a compressed file that can be uploaded to the Lanamark portal for analysis and reporting.
Therefore, the correct answer is D. Download Lanamark Snap and use it to collect the data, and then upload manually to the Lanamark portal, as this is the best option to collect data from an ESXi infrastructure that is not connected to the internet. References:
1: HPE SimpliVity Solution Design Guide,
https://h20195.www2.hpe.com/v2/getdocument.aspx?docname=a00019351enw, page 15-16
質問 # 32
In an HPE SimpliVity 10-node cluster, a simultaneous increase of 10 requests across several VM caused a
surge in 10 traffic in a single node. Which HPE SimpliVity feature can evenly distribute the 10s across the
cluster?
- A. Resource Balancer
- B. Management Virtual Appliance
- C. Arbiter
- D. Intelligent Workload optimizer
正解：C
質問 # 33
A user deleted a file from Linux based virtual machine.
Which HPE SimpliVity data protection feature can be leveraged to recover the flie?
- A. Moving a virtual machine from DR site to the primary site
- B. Using file level restore option
- C. Reverting to the SimpliVity snapshot
- D. Restoring a virtual machine from the backup
正解：D
質問 # 34
How is each datastore presented to HPE SimpliVity nodes?
- A. as a vVol
- B. as an NFS datastore
- C. as a VMFS datastore
- D. as a part of vSAN
正解：C
解説：
According to the HPE SimpliVity documents and learning resources, each datastore in an HPE SimpliVity cluster is presented to the HPE SimpliVity nodes as a VMFS datastore. A VMFS datastore is a VMware-specific file system that allows multiple ESXi hosts to access the same storage device concurrently.
HPE SimpliVity uses VMFS datastores to store virtual machine files and provide shared storage to all virtual machines on the hosts. HPE SimpliVity does not use vSAN, NFS, or vVol as the datastore type. References: Using HPE SimpliVity Official Certification Study Guide, page 41; SimpliVity Video - How to Create a HPE SimpliVity Datastore
質問 # 35
At which level you can apply a backup policy?
- A. vCenter Server
- B. cluster
- C. datastore
- D. datacenter
正解：C
解説：
You can apply a backup policy at the datastore level, as this is the level at which HPE SimpliVity manages the virtual machines and their backups1. A backup policy consists of one or more rules that specify the destination, frequency, and retention of the backups. You can assign a backup policy to a datastore, and all the virtual machines in that datastore will inherit the backup policy. You can also override the backup policy for individual virtual machines, if needed2. Applying a backup policy at the cluster level (option A), the datacenter level (option B), or the vCenter Server level (option C) is not possible, as these are not the levels at which HPE SimpliVity manages the virtual machines and their backups. These levels are used for organizing and managing the ESXi hosts and the HPE SimpliVity nodes, but not for applying backup policies.
References:
1: Using HPE SimpliVity Official Certification Study Guide (HPE2-K45), HPE Press, 2019, p. 28.
2: HPE SimpliVity OmniStack Interoperability Guide 4.2.0, HPE, 2021, p. 8.
質問 # 36
Which HPE SimpliVity model can be equipped with the HPE mniStack Accelerator card?
- A. HPE SimpliVity 380 Gen10 H
- B. HPE SimpliVity 380 Genl0
- C. HPE SimpliVity 325 Gen10
- D. HPE SimpliVity 2600
正解：B
質問 # 37
During the troubleshooting process, HPE Support requested a Support Capture file from multiple HPE
SimpliVity hosts. The customer is concerned about security and wants to know what is included in this file.
What information is included in this file? (Select two.)
- A. System status information
- B. HPE InfoSight connection parameters
- C. Security token to access system remotely
- D. Log files
- E. License entitlement
正解：D、E
質問 # 38
A customer wants to migrate virtual machines from the existing infrastructure to HPE SimpiiVlty. How can you complete this task?
- A. Map VMFS datastores holding the virtual machine files as an RDM to HPE SimpliVity nodes, and migrate the virtual machines.
- B. Connect VMFS datastores holding the virtual machine files to HPE SimpliVity nodes, and migrate the virtual machines.
- C. Share HPE SimpliVity datastores with standard ESXi hosts, and migrate the virtual machines.
- D. Add ESXi system to the HPE SimpliVity cluster, and migrate the virtual machines to HPE SimpliVity datastores.
正解：C
解説：
The best way to migrate virtual machines from the existing infrastructure to HPE SimpliVity is to share HPE SimpliVity datastores with standard ESXi hosts, and migrate the virtual machines using VMware vSphere Storage vMotion1. This method allows the virtual machines to be moved to the HPE SimpliVity datastores without any downtime or impact on the performance. The HPE SimpliVity datastores are automatically created and managed by the HPE SimpliVity Virtual Controller, and they can be shared with any ESXi host that is in the same vCenter Server as the HPE SimpliVity cluster2. Connecting VMFS datastores holding the virtual machine files to HPE SimpliVity nodes, and migrating the virtual machines (option A) is not a supported method, as the HPE SimpliVity nodes do not have direct access to the VMFS datastores, and they can only use the HPE SimpliVity datastores3. Mapping VMFS datastores holding the virtual machine files as an RDM to HPE SimpliVity nodes, and migrating the virtual machines (option C) is not a supported method, as the HPE SimpliVity nodes do not support RDM devices, and they can only use the HPE SimpliVity datastores4. Adding ESXi system to the HPE SimpliVity cluster, and migrating the virtual machines to HPE SimpliVity datastores (option D) is not a recommended method, as it requires the ESXi system to be converted to an HPE SimpliVity node, which involves installing the HPE OmniStack software and the HPE SimpliVity Virtual Controller, and reconfiguring the network settings. This method may cause downtime and data loss, and it is only advised for specific scenarios, such as replacing a failed node or expanding the cluster.
References:
1: Using HPE SimpliVity Official Certification Study Guide (HPE2-K45), HPE Press, 2019, p. 29.
2: HPE SimpliVity OmniStack Interoperability Guide 4.2.0, HPE, 2021, p. 8.
3: HPE SimpliVity 380 Gen10 Node Data sheet, HPE, 2019, p. 5.
4: HPE SimpliVity OmniStack Interoperability Guide 4.2.0, HPE, 2021, p. 9.
[5]: HPE SimpliVity 380 Gen10 Node Installation and Startup Service, HPE, 2019, p. 3.
質問 # 39
You want to use the HPE SimpliVity move operation to move a virtual machine between clusters. What do you have to do prior to completing the move operation?
- A. Install VS5 agent in the virtual machine.
- B. Suspend the virtual machine.
- C. Take a virtual machine snapshot.
- D. Shut down the virtual machine.
正解：C
解説：
Before moving a virtual machine to another datastore, you need to take a snapshot of the virtual machine using the HPE SimpliVity plugin in vSphere. This ensures that the virtual machine is in a consistent state and that the data is protected. The snapshot also serves as a backup in case the move operation fails or is interrupted.
After taking the snapshot, you can use the HPE SimpliVity move operation to move the virtual machine to the desired datastore, either within the same cluster or across clusters. The move operation preserves the data efficiency and resiliency of the virtual machine, and does not require any downtime or reconfiguration12.
References: Move a virtual machine to another datastore - Hewlett Packard Enterprise, HPE SimpliVity frequently asked questions
質問 # 40
When should an svtcli account be used?
- A. to access HPE SimpliVity data using REST API
- B. for a daily management tasks performed using CLI
- C. when two or more VCs are not available
- D. when hypervisor-based user is unavailable
正解：A
解説：
According to the HPE SimpliVity REST API Reference Guide1, the svtcli account is a local emergency account that can be used to access HPE SimpliVity data using REST API whenthe hypervisor-based user is unavailable. This account can only perform a limited set of operations, such as getting information about hosts, clusters, backups, datastores, and virtual machines, and restoring backups of virtual machines. The svtcli account can request an authentication token using the emergency grant type, which is valid for 10 minutes of inactivity or 24 hours of continuous activity. The other options are not correct because:
The svtcli account is not used when two or more VCs are not available. In that case, the federation management is transferred to the remaining VCs2.
The svtcli account is not used when the hypervisor-based user is unavailable. In that case, the emergency grant type is used to access the REST API using the svtcli account1.
The svtcli account is not used for daily management tasks performed using CLI. For that purpose, the hypervisor-based user is used, which has full access to the CLI commands3. References: 1: HPE SimpliVity REST API Reference Guide (A00019351ENW), pages 9-10, 14-152: HPE SimpliVity Administration Guide (A00019350ENW), page 303: HPE SimpliVity CLI Reference Guide (A00019352ENW), page 9.
質問 # 41
Refer to exhibit:
You are using Restore Virtual Machine for a given virtual machine. Which result is achieved by thrs
operation?
- A. Virtual machine boot partition mapped as IS image to another VM
- B. New virtual machine created out of this backup
- C. New snapshot added to existing virtual machine
- D. New linked-clone created
正解：D
質問 # 42
A customer plans to mix nodes with different drive configuration in the same cluster. What should you explain
to this customer?
- A. Mixing nodes with different drive configuration requires an additional license.
- B. Mixing All-flash and hybrid nodes in the same cluster is supported.
- C. Mixing nodes with different drive configuration is available only for AMD-based nodes.
- D. Mixing different drive configurations within a cluster results in unbalanced 10 performance.
正解：C
質問 # 43
Hyper Protected refers to which HPE SimpliVity ability?
- A. Integrate with Veeam to provide an external backup solution.
- B. Backup or restore 1TB VM in less than 1 minute.
- C. Restore individual files from a VM backup.
- D. Define a storage policy using RAID 6 or RAID 60 to protect the VM.
正解：B
解説：
Hyper Protected is one of the four pillars of HPE SimpliVity's value proposition, along with Hyper Simple, Hyper Efficient, and Hyper Manageable. Hyper Protected refers to the ability of HPE SimpliVity to provide built-in data protection and disaster recovery for virtual machines (VMs) with unprecedented speed and efficiency. HPE SimpliVity can backup or restore 1TB VM in less than 1 minute, thanks to its unique data architecture that deduplicates, compresses, and optimizes data at inception, and its global federated management that enables policy-based automation across multiple sites. Restoring individual files from a VM backup, defining a storage policy using RAID 6 or RAID 60 to protect the VM, and integrating with Veeam to provide an external backup solution are not specific to HPE SimpliVity's Hyper Protected capability, and can be done by other solutions as well. References: Using HPE SimpliVity Official Certification Study Guide, page 11, section 1.2. SimpliVity Hyperconverged, section "Hyper Protected". HPE SimpliVity 380 Gen10 Node, section "Features". SimpliVity HyperGuarantee, section "Remain online and recoverable - always".
質問 # 44
What are the requirements for stretched cluster implementation?
- A. A direct-connected network configuration
- B. Arbiter located in the primary site
- C. Round trip latency below 50ms
- D. The same subnet for the storage network for both locations
正解：D
質問 # 45
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