DEE-1111リアルな試験問題DEE-1111練習問題集 [Q13-Q32]

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DEE-1111リアルな試験問題DEE-1111練習問題集

厳密検証されたDEE-1111試験問題集と解答で無料提供のDEE-1111問題と正解付き


EMC DEE-1111試験の資格を取得するためには、候補者は、EMCストレージソリューションの展開と管理における最低2年の経験と、ファイバーチャネル、iSCSI、NASなどのストレージネットワーキング技術に関する包括的な理解を持っている必要があります。また、ストレージ仮想化、データ保護、災害復旧に関しても熟知している必要があります。


データボリュームと複雑性の指数関数的な成長に伴い、世界中の企業や組織は、PowerMaxやVMAXのような高度なストレージソリューションを展開し、データストレージと管理能力を最適化しています。そのため、これらのソリューションを効果的に分析、設計、実装するための知識とスキルを持つITプロフェッショナルへの需要が非常に高まっています。そのため、EMC DEE-1111試験は、ITインフラ管理の重要な分野で、ITプロフェッショナルのキャリアを推進する重要な役割を果たしています。

 

質問 # 13
A storage administrator migrated an AIX host using NDM.
When they commit the migration, how is host access to the source array removed?

  • A. Source volumes are deleted
  • B. Source volumes are set NR
  • C. Old host paths are set NR
  • D. Masking view is deleted

正解：D

解説：
During a Non-Disruptive Migration (NDM), when the migration is committed, the host access to the source array is removed by deleting the masking view. The masking view is a logical grouping of host initiators, storage ports, and a storage group (which contains volumes). Deleting the masking view removes the host's access to the volumes on the source array12. Reference: Dell EMC PowerMax and VMAX: Non-Disruptive Migration Best Practices and Operational Guide, VMAX/PowerMax Non-Disruptive Migration (NDM) for the IBMi host platform | Dell US Support Knowledge Base Article


質問 # 14
Which feature of PowerMax and VMAX All Flash arrays provides ORM functionality?

  • A. Parallel prefetch
  • B. Write folding
  • C. FlashBoost
  • D. Write coalescing

正解：D

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 # 15
A DG group is part of a snapshot schedule which runs each day at 9 am then linked to a set of targets for a full copy after termination. Additional volumes were added which increased the link to full copy time.
What course of action will prevent the issue?

  • A. Set copy to URGENT
  • B. Relink without the -copy option
  • C. Set copy pace 16
  • D. Relink with the -precopy option

正解：D

解説：
The -precopy option in the relink command can be used when you want to start copying data to the target devices immediately after the link operation. This can be useful in situations where additional volumes have been added, increasing the link to full copy time. By using -precopy, you ensure that the data starts copying immediately, preventing potential issues.


質問 # 16
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. Write Acceleration
  • C. Deduplication
  • D. Fast Write

正解：D

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 # 17
If the host is cross connected in an SRDF/Metro configuration, what happens if the R2 device becomes Not Ready?

  • A. Read-only access is available to only the R1 device
  • B. Read-only access is available to both devices
  • C. Loses read/write access to both devices
  • D. Continues to have read/write access to the R1 device

正解：D

解説：
In an SRDF/Metro configuration, if the host is cross-connected and the R2 device becomes Not Ready, the host continues to have read/write access to the R1 device12. This is because SRDF/Metro is designed to provide high availability and continuous data access. If one device becomes inaccessible, the host can still access the other device12. Reference: SRDF/Metro | SAP Landscape Consolidation with Dell Components, Understanding bias | Dell EMC PowerMax and VMAX All Flash: SRDF/Metro Overview and Best Practices


質問 # 18
Refer to exhibit.

The RDF-ECA timer has expired.
What is the state of all the RDF links?

  • A. failed over
  • B. suspend
  • C. online
  • D. split

正解：B

解説：
When the RDF-ECA timer expires, all RDF links will be in a 'Suspend' state. This is because the RDF-ECA timer is used to control how long SRDF waits for an acknowledgement from the remote array before it suspends the link. If an acknowledgement is not received within this time, SRDF assumes that there is a problem with the link or remote array and suspends the link to prevent data loss or corruption.


質問 # 19
SRDF/A MSC has been configured between two sites. There are two PowerMax arrays at the source site and two PowerMax arrays at the target site. An SRDF/A MSC trip event has occurred.
What happens if the Receive Delta Set on one of the target arrays is incomplete?

  • A. Session is marked as No Cleanup required
  • B. Transmit Delta set is discarded
  • C. Receive Delta Set data is discarded
  • D. Session is marked as Cleanup required

正解：D

解説：
The correct answer is D. When an SRDF/A MSC trip event occurs, the Receive Delta Set on the target arrays is checked for completeness. If the Receive Delta Set is incomplete on any of the target arrays, the session is marked as Cleanup required. This means that the data on the target arrays is not consistent and needs to be cleaned up before resuming SRDF/A replication. The symstar cleanup command can be used to discard the incomplete Receive Delta Set data and resume SRDF/A replication from the last consistent point1


質問 # 20
An application server has the following data characteristics:
80% of the I/O is generated with 8 KB random small blocks
20% of the I/O is generated with 64 KB sequential large blocks
50% of all I/O is a write
What workload profile do these data characteristics represent?

  • A. OLTP
  • B. DCS
  • C. RWM
  • D. RRH

正解：A

解説：
The data characteristics represent an Online Transaction Processing (OLTP) workload profile. OLTP workloads typically consist of a high percentage of small, random I/O operations2. In this case, 80% of the I/O is generated with 8 KB random small blocks, which is characteristic of OLTP workloads2. Reference: Use DISKSPD to test workload storage performance - Azure Stack HCI | Microsoft Learn


質問 # 21
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：C

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 # 22
SRDF/Metro has been implemented with the bias setting. The R1 side of the pair is configured as the bias side.
How does the device bias work with the R2 device if the R1 array has a failure?

  • A. Device bias is unable to make the R2 device available to the host
  • B. R2 device automatically becomes the active device
  • C. R2 device automatically becomes the bias device
  • D. Device bias performs a half-swap, and the R2 device becomes the new R1 device

正解：B

解説：
In an SRDF/Metro configuration with bias setting, if there is a failure at the R1 array (which is configured as the bias side), the R2 device automatically becomes the active device. This means that even if there's a failure on the R1 side, operations can continue on the R2 side without interruption, ensuring high availability.
https://infohub.delltechnologies.com/l/dell-emc-powermax-and-vmax-all-flash-srdf-metro-overview-and-best-practices-1/understanding-bias


質問 # 23
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=15.A=15
  • C. A=15, B=50
  • D. B=40, A=10

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 # 24
An administrator is configuring SYMACL on a PowerMax array.
What are possible ways to get a unique ID for a host system?

  • A. Derived from host hardware configuration Randomly generated
  • B. Derived from storage array hardware configuration From a passphrase
  • C. Derived from SAN domain ID Derived from local disk configuration
  • D. Derived from host-based passphrase Randomly generated by Solutions Enabler lockbox file

正解：D

解説：
The SYMACL unique ID for a host system can be obtained in two ways: derived from a host-based passphrase or randomly generated by the Solutions Enabler lockbox file. The host-based passphrase is a string that the user can specify to generate a unique ID for the host. The passphrase can be entered interactively using the symacl -unique -passphrase command, or stored in a file and passed as an argument using the symacl -unique -passphrase -file command. The Solutions Enabler lockbox file is a secure file that stores encryption keys and other sensitive information. The lockbox file can also generate a random unique ID for the host using the symacl -unique command. The lockbox file must be created and initialized before using this method.
Reference:
symacl -unique : Unable to obtain unique ID for host - Dell
EMC - Symmetrix Access Control - symacl | SANSPIRE
How to identify hostname and host ID for license generation


質問 # 25
NDM is being used to migrate some Windows hosts to a new PowerMax. The client doesn't want the migration target volumes to retain the source volume external device identity following the migration.
What should be used to complete the migration and address the client's concern?

  • A. NDM Updates feature
  • B. NDM pass-through mode
  • C. NDM metro-based mode
  • D. NDM cancel revert function

正解：A

解説：
The NDM Updates feature should be used to complete the migration and address the client's concern. The NDM Updates feature is designed to help automate the process of moving applications across arrays requiring a short application downtime. It allows application migration from a VMAX (5876) array to a VMAX3 (5977), VMAX All Flash (5978), or PowerMax (5978) array1. It supports pre-sync data between arrays and then schedule downtime to do the cutover1. Reference: Dell EMC PowerMax and VMAX: Non-Disruptive Migration Best Practices and Operational Guide


質問 # 26
What environment includes R11 devices?

  • A. Concurrent SRDF
  • B. SRDF/CE
  • C. Cascaded SRDF
  • D. SRDF/AR

正解：C

解説：
R11 devices are included in a Cascaded SRDF environment. In a cascaded SRDF configuration, the R1 device at the primary site is paired with an R11 device at the secondary site, which is then paired with an R2 device at the tertiary site2. Reference: NDM overview | Dell EMC PowerMax and VMAX: Non-Disruptive Migration Best Practices and Operational Guide | Dell Technologies Info Hub


質問 # 27
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 3 and Site 2
  • B. SRDF/A links must be configured between Site 1 and Site 2
  • C. SRDF/S links must be configured between Site 1 and Site 3
  • D. SRDF/S links must be configured between Site 3 and Site 2

正解：D

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 # 28
An organization has PowerMax systems on three sites. They plan to implement SRDF/Star to provide remote protection.
What is a restriction for an SRDF/Star configuration?

  • A. All the SRDF Groups must be defined and in suspended state
  • B. SRDF Groups cannot be shared between SRDF/Star configurations
  • C. The asynchronous PowerMax requires twice the SRDF directors compared to the two synchronous arrays
  • D. All SRDF/Star device pairs must be of the same geometry and size

正解：D

解説：
In an SRDF/Star configuration, all SRDF/Star device pairs must be of the same geometry and size. This is because SRDF/Star uses concurrent SRDF to maintain synchronous and asynchronous SRDF sessions between three arrays. The devices in these sessions must have identical geometry to ensure data consistency56. Reference: Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide, SRDF/Metro overview | Dell EMC PowerMax and VMAX All Flash: SRDF/Metro Overview and Best Practices


質問 # 29
An SRDF/Metro Smart DR configuration experiences a service interruption.
What criteria will the Fault-Aware Witness give a higher priority to when selecting the winning array?

  • A. Bias
  • B. Director status
  • C. Synced SRDF/A leg
  • D. Presence of a DR leq

正解：A

解説：
In an SRDF/Metro Smart DR configuration, the Fault-Aware Witness gives a higher priority to Bias when selecting the winning array. The bias settings for the devices are used to determine the preferred winner in the event of a failure2. The preferred winner is the side that has priority when requesting the lock from the witness instance2. Reference: Dell EMC PowerMax and VMAX All Flash: SRDF/Metro Overview and Best Practices


質問 # 30
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. Auditor and
  • B. SecuritvAdmin only
  • C. LocalRep and Monitor
  • D. RemoteRep Only

正解：D

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 # 31
Alerts are required to track high I/O response times for a specific storage group. I/O Response times greater than 10 ms require next day analysis. I/O response times greater than 15 ms require immediate intervention.
Which alert settings are required?

  • A. 1st level - Informational, 10 ms. 2nd level - Warning, 15 ms
  • B. 1st level - informational, 9 ms 2nd level - Warning, 14 ms
  • C. 1st level - Warning, 10 ms 2nd level - Critical, 15 ms
  • D. 1st level-Warning, 11 ms 2nd level - Critical, 16 ms

正解：C

解説：
The alert settings required are a first level warning at 10 ms and a second level critical alert at 15 ms. These settings will ensure that high I/O response times for a specific storage group are tracked and appropriate actions are taken when the response times exceed the specified thresholds. Reference: Dell EMC PowerMax: Service Levels for PowerMaxOS


質問 # 32
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