[2024年08月]更新のDEE-1111問題集本日限定！無料アクセス可能に！Fast2testで試そう
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EMC DEE-1111認定は、ストレージ業界で高く評価され、世界の主要な組織に認められています。この認定は、個人がPowerMaxやVMAXストレージシステムを深く理解し、彼らの組織のニーズに合わせたソリューションを設計および実装できる能力があることを示しています。この認定は、ストレージ業界でキャリアアップを望む専門家や、ストレージソリューションの管理と最適化の専門知識を証明したいと考えている人に最適です。
EMC DEE-1111試験は、PowerMaxおよびVMAXファミリーのソリューションに焦点を当てています。この試験は、エンタープライズ環境でこれらのソリューションを設計、管理、実装する責任を持つプロフェッショナルを対象としています。試験は、アーキテクチャ、管理、ベストプラクティス、他のテクノロジーとの統合を含むPowerMaxおよびVMAXファミリーのソリューションについての個人の知識を試験します。
質問 # 15
An administrator is trying to view the SLO Compliance Report but is unable to find data for an issue that occurred 7 months ago.
What is the maximum retention period?
- A. 6 months
- B. 3 months
- C. Last month
- D. Last 2 weeks
正解：A
解説：
The maximum retention period for the SLO Compliance Report is 6 months. This means that data older than 6 months will not be available in the report
質問 # 16
A user can create, manage, and delete PowerMax SRDF device pairs. They can also view the array information, masking objects, device information, and the defined RBAC rules. However, they are unable to create and delete SRDF groups.
Which RBAC profile has been assigned to the user's profile?
- A. SecuritvAdmin only
- B. Auditor and
- C. RemoteRep Only
- D. LocalRep and Monitor
正解：C
解説：
The user has been assigned the RemoteRep role only. The RemoteRep role allows users to create, manage, and delete SRDF device pairs, as well as view array information, masking objects, device information, and RBAC rules2. However, it does not allow users to create and delete SRDF groups, which requires the StorageAdmin role. Therefore, answer C is correct.
A, B, and D are incorrect because they do not match the user's profile. SecurityAdmin (A) role allows users to manage security settings such as authentication methods, certificates, RBAC rules, and audit logs2. Auditor (B) role allows users to view array information and audit logs only2. LocalRep (D) role allows users to create, manage, and delete TimeFinder SnapVX sessions from a source device2. None of these roles allow users to create and delete SRDF device pairs.
質問 # 17
A company plans to implement SRDF/Star. It is currently using SRDF/S between their two data centers. It is setting up a third data center and wants to have at least two identical copies of its data in case of a primary site failure.
What condition is needed for the connection between the first two sites and the third site?
- A. Latency cannot exceed 40 ms
- B. Any link capable of transporting data with a maximum latency of 15 seconds
- C. Distance cannot exceed 200 kilometers
- D. The link must be able to transport the delta set of the RPO within the company's RTO
正解：D
解説：
A company plans to implement SRDF/Star, which is a three-site replication solution that provides continuous data protection and disaster recovery capabilities. It is currently using SRDF/S between their two data centers, which are located within 200 kilometers and use synchronous replication. It is setting up a third data center and wants to have at least two identical copies of its data in case of a primary site failure. The third site can be located anywhere in the world and use asynchronous replication. The condition that is needed for the connection between the first two sites and the third site is that the link must be able to transport the delta set of the Recovery Point Objective (RPO) within the company's Recovery Time Objective (RTO). The delta set is the amount of data that has changed since the last successful replication cycle. The RPO is the maximum acceptable amount of data loss measured in time. The RTO is the maximum acceptable amount of time to restore normal operations after a disaster. The link must have enough bandwidth and latency to ensure that the delta set can be transferred within the RTO without exceeding the RPO.
Reference:
SRDF Star software uses and best practices
SRDF/STAR
Remote replication using SRDF
質問 # 18
Which two factors define Capacity Management?
- A. Number of FE ports and number of SCM drives
B Number of BE ports and I/O capacity - B. I/O capacity and storage capacity
- C. Storage capacity and number of SCM drives
正解：B
解説：
The two factors that define Capacity Management are I/O capacity and storage capacity. I/O capacity refers to the ability of the system to handle the incoming and outgoing data traffic from the hosts or applications. Storage capacity refers to the amount of disk space available to store the data. Capacity Management is the process of planning, monitoring, and optimizing the use of these resources to ensure optimal performance, availability, and efficiency of the system.
Reference:
Dell EMC PowerMax: Family Overview
System Resource Usage
質問 # 19
What is the maximum number of SCM RAID groups that can be added to a two-engine PowerMax 2000?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
the maximum number of SCM RAID groups that can be added to a two-engine PowerMax 2000 would depend on various factors including the specific configuration of the system and the capacity requirements.
質問 # 20
During a Non-Disruptive Migration (NDM), what is the result of issuing the ReadyTgt SYMCLI command to the migrating Storage Group?
- A. Masking View is created on the target array using elements that are created during the create command
- B. Completes the migration by removing the migrated application resources from the source array
- C. Source Masking View is removed so the original source paths are in a dead state
- D. Confirms that both the source and target arrays can support IDM operations
正解：B
解説：
During a Non-Disruptive Migration (NDM), issuing the ReadyTgt SYMCLI command to the migrating Storage Group completes the migration by removing the migrated application resources from the source array2. This command is typically issued after all data has been synchronized from the source to the target array and application I/O has been switched to the target array2. Reference: NDM overview | Dell EMC PowerMax and VMAX: Non-Disruptive Migration Best Practices and Operational Guide | Dell Technologies Info Hub
質問 # 21
A company wants to implement a three-site disaster recovery solution. It is considering a Concurrent SRDF/Star environment where the production data on R11 devices are replicated to two R2 devices in two remote arrays. Site 2 will use SRDF/S links, and Site 3 will use SRDF/A links from Site 1.
What is the correct configuration for recovery links?
- A. SRDF/A links must be configured between Site 1 and Site 2
- B. SRDF/S links must be configured between Site 3 and Site 2
- C. SRDF/S links must be configured between Site 1 and Site 3
- D. SRDF/A links must be configured between Site 3 and Site 2
正解：B
解説：
In a Concurrent SRDF/Star environment where the production data on R11 devices are replicated to two R2 devices in two remote arrays, SRDF/S links must be configured between Site 3 and Site 2. This is because in a Concurrent SRDF/Star configuration, there are two target sites and one source site. If there's a failure, the source site can switch to either of the target sites based on the business continuity plan1. Reference: Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide, SRDF Star software uses and best practices - Dell
質問 # 22
During a Non-Disruptive Migration (NDM), what is the result of issuing the ReadyTgt SYMCLI command to the migrating Storage Group?
- A. Masking View is created on the target array using elements that are created during the create command
- B. Completes the migration by removing the migrated application resources from the source array
- C. Source Masking View is removed so the original source paths are in a dead state
- D. Confirms that both the source and target arrays can support IDM operations
正解：B
解説：
During a Non-Disruptive Migration (NDM), issuing the ReadyTgt SYMCLI command to the migrating Storage Group completes the migration by removing the migrated application resources from the source array2. This command is typically issued after all data has been synchronized from the source to the target array and application I/O has been switched to the target array2. Reference: NDM overview | Dell EMC PowerMax and VMAX: Non-Disruptive Migration Best Practices and Operational Guide | Dell Technologies Info Hub
質問 # 23
Refer to exhibit.
Refer to the exhibit.
SRDF device pairs are suspended by the administrator.
Which symrdf command was issued next?
- A. svmdrfhalf swap
- B. symrdf swap
- C. svmrdf split
- D. symrdf set bias
正解：C
解説：
The symrdf split command is used to suspend SRDF/A replication and make both R1 and R2 devices read/write enabled. This is useful for testing purposes or for creating point-in-time copies of data on both sides. The symrdf establish command can be used to resume SRDF/A replication after a split operation. The exhibit shows that both R1 and R2 devices are read/write enabled and have a Split status, which indicates that a symrdf split command was issued next2
質問 # 24
What is the correct sequence of actions that take place on a Write Miss?
正解：
解説：
1 - Host sends requests to FE director and no cache slots are found
2 - FE finds available slot by polling
3 - FE sends data from host to mirrored cache locations
4 - FE responds to host to acknowledge successful write
5 - BE destages data as a high-priority task to make slots available
6 - BF destages new data to disk at a later time
質問 # 25
Refer to the exhibit.
PowerMax A has a current utilization of 10%, and PowerMax B has a current utilization of 70%.
What will the response times be for systems A and B if utilization increases by 10%?
- A. A=10, B=40
- B. B=40, A=10
- C. B=15.A=15
- D. A=15, B=50
正解：A
解説：
If utilization increases by 10% for both systems A and B, where system A has a current utilization of 10% and system B has a current utilization of 70%, the response times for systems A and B would not necessarily increase linearly with utilization. The exact impact on response times would depend on various factors including workload characteristics, system configuration, and resource contention among others34. However, without specific details on these factors, it's not possible to provide an accurate prediction for the new response times. Reference: PowerMax and VMAX All Flash: Storage Resource Pool (SRP) Effective Used Capacity threshold alert, Service levels and eNAS | Dell EMC PowerMax and VMAX All Flash: eNAS Best Practices
質問 # 26
A company has two PowerMax arrays located 100 km apart. The arrays are configured with SRDF/S over Fibre Channel.
Which Dell EMC technology improves FC replication between sites?
- A. SIRT
- B. Deduplication
- C. Fast Write
- D. Write Acceleration
正解：C
解説：
Fast Write is a Dell EMC technology that improves Fibre Channel (FC) replication between sites in a SRDF/S configuration. When a write I/O is issued by the host to the R1 device, SRDF with Fast Write acknowledges the write to the host as soon as the data is stored in the R1's cache and transmitted to the R2's cache. This results in reduced latency and improved performance for FC replication between sites.
https://www.delltechnologies.com/asset/en-us/products/storage/industry-market/h17118_dell_emc_powermax_family_overview.pdf
https://infohub.delltechnologies.com/l/dell-emc-powermax-and-vmax-all-flash-srdf-metro-overview-and-best-practices-1/srdf-metro-overview/
質問 # 27
What is the minimum number of samples that must be collected via a single Real Time Trace collection process in Unisphere for PowerMax?
- A. 0
- B. 1
- C. 2
- D. 3
正解：A
解説：
The minimum number of samples that must be collected via a single Real Time Trace collection process in Unisphere for PowerMax is 1040. This is because the Real Time Trace feature allows the user to collect performance data at 30-second intervals for up to 8 hours, which results in 1040 samples (8 x 60 x 60 / 30 = 1040). The Real Time Trace feature can be used to monitor the performance of storage groups, directors, ports, or devices at a granular level and identify any potential issues or bottlenecks.
Reference:
PowerMax Real Time SG Monitoring in Unisphere 9 0
VMAX Performance Troubleshooting with Unisphere - Run a real time trace at the system level
質問 # 28
What is the correct sequence of steps to configure and bring up an SRDF/Star environment?
正解：
解説：
1 - Verify SRDF/Star control host connectivity and array settings
2 - Enable SRDF/Star configuration
3 - Add BCV devices to the SRDF/Star configuration
4 - Create an SRDF/Star composite group and options file
5 - Perform the symstar setup operation and create composite groups on target sites Reference:
Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide
質問 # 29
Which feature of PowerMax and VMAX All Flash arrays provides ORM functionality?
- A. Write folding
- B. Write coalescing
- C. FlashBoost
- D. Parallel prefetch
正解：B
解説：
The feature of PowerMax and VMAX All Flash arrays that provides ORM functionality is write coalescing. ORM stands for Optimized Resource Management, which is a set of technologies that optimize the performance and efficiency of flash storage. Write coalescing is one of the ORM technologies that reduces the write amplification and extends the life of flash drives. Write coalescing combines multiple small writes into larger sequential writes before destaging them to the flash drives. This reduces the number of write operations and the amount of data that needs to be erased and rewritten on the flash drives, which improves the performance and endurance of the flash storage.
Reference:
Dell EMC PowerMax: Family Overview
Dell EMC PowerMax and VMAX All Flash: Data Reduction
Dell EMC PowerMax and VMAX All Flash: Embedded Management
質問 # 30
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EMC DEE-1111認定試験は、PowerMaxおよびVMAXストレージシステムに関連する様々なトピックをカバーしており、ストレージリソースの構成と管理、データ保護とレプリケーション、パフォーマンスの監視とチューニング、およびトラブルシューティングを含みます。試験は、候補者の基礎技術の理解と、その知識を実世界のシナリオに適用できる能力をテストするように設計されています。認定は、試験合格日から2年間有効であり、関連する再認証試験に合格することで更新することができます。
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