E20-880 Exam Questions

A pair of VNX storage arrays is replicating between two data centers over an iSCSI connection. The SQL Admin has noticed that a small OLTP database with a write size of 4k periodic...

You are migrating a backup application that runs on physical servers to a VDC. The VDC storage is currently a VNX configured with NL-SAS drives only. Your customer is concerned abo...

Your customer is designing a Proof of Concept with SQL Server attached to a VNX. The storage design includes seven LUNs on a RAID Group. The system is generally very heavily loaded...

A customer is about to implement your VNX for File design for a file-sharing environment. The design specifies both NFS and Windows clients that access file systems in a multi-thre...

A VMware 5 customer is planning to upgrade their networking environment to 10 Gb Ethernet. They would also like to use real time vMotion to ensure balanced application load distrib...

Which protocol does VNX support for encrypted network management activities?

In order to ensure that role-based access is enforced, the VNX storage domain has implemented two administrative groups called Auditors and Storage Admins. One of the administrator...

A customer with a VNX configured with homogenous pools wants to upgrade the performance of their array. The customer has a limited budget. Which approach would you recommend?

Your customer has recently purchased a VNX to host their three Oracle RAC database environments and automated payment processing application. The RACs and application are different...

A customer needs to move data from a CLARiiON to a new VNX storage system. Attempts to configure a SAN Copy session with Unisphere fail. The customer uses Navisphere Secure CLI to...

A customer is experiencing performance degradation when accessing certain CIFS shares configured on a VNX for File storage system. To troubleshoot, they would like to create a repo...

Your customer has a 2,000 GiB traditional LUN containing a database of customer information. Data belonging to active customers is frequently accessed, but the majority of the data...

A customer has implemented a VNX array that hosts multiple SQL database applications, but there are significant performance issues with some of the applications. They have purchase...

A customer is designing an environment that utilizes thin LUNs on a pool. The customer makes capacity calculations before they create the thin LUNs, and determine that three thin L...

A customer has a mix of Windows 2003 and Windows 2008 virtualized guests deployed in their vSphere v4 environment. They have purchased a new VNX array and are also upgrading their...

A customer has deployed various applications on a VNX storage system. During a performance analysis, you notice several hot spots on different drives and enclosures. Upon further i...

You have designed an Auto-tiering solution using Flash, SAS, and NL-SAS disks in your storage pool. Your design was implemented and scheduling has been running daily. The customer...

A customer has a VNX system to provide storage for a VMware 4.1 Cluster with four ESX hosts. The ESX hosts are running Exchange servers and other application servers. The customer...

A customer implemented SAN Copy with default settings to create full copies of 60 DMX array volumes on a VNX storage system. After several hours, they determine that the process is...

A company has two data centers. They run multiple Exchange servers in each data center in a virtualized environment. The Exchange Admin would like the storage for each Exchange ser...

A customer has installed a VNX storage system for their VMware cluster based environment with six ESX hosts. The ESX will be dedicated for MS SQL servers supporting two heavy SQL o...

You have designed an Auto-tiering solution using Flash, SAS, and NL-SAS disks in your storage pool. Your design was implemented and scheduling has been running daily. The customer...

A customer is concerned about the VNX Unified storage performance. The VNX provides storage services for variety of Windows and UNIX application servers. When monitoring the switch...

You are designing a VNX storage solution for an Oracle database implementation. The VNX is populated with Flash, SAS and NL-SAS drives. The customer has asked you to recommend the...

Your customer has a Microsoft SQL installation on a VMware guest Windows 2008 Server using VMFS. The ESXi server uses a VNX system. The VMFS has been properly aligned with the phys...

A VMware Administrator has received numerous reports from his users about performance degradation. The administrator believes that your storage design on the VNX is the reason for...

Your customer wants to enable file deduplication on an existing data-populated VNX for File system, based on the following specifications: - Moderately busy file system scan rate:...

A VNX customer has several users on their CIFS share, which is also used for dedupe/compression. In addition, replication is in place with checkpoints on both ends to handle backup...

Your customer has a single threaded legacy application with a sequential write workload. They are currently performing a storage technology refresh. They ask you to architect a sol...

A VMware v4 customer is considering consolidation of their environment to support their cloud IAAS (Infrastructure as a Service) initiative on VNX storage. They have a number of cu...

A customer is planning to virtualize their current production Oracle environment. To obtain advice, they hired EMC Application Virtualization Assessment for Oracle. After assessing...

Which tool provides recommendations on how query processing performance can be improved by modifying physical design structures such as indexes, indexed views, and partitioning?

Exchange 2010 is being virtualized on a VNX storage array in a VMware environment. Array- based replicas will be used to provide data protection. Which best practice should be foll...

You are in a design session with a customer of an ESXi 5.0 cluster. One of the stakeholders inquires about vNUMA. By default, what is the minimum number of CPUs in a vNUMA enabled...

A VNX for File administrator using SnapSure has created a recurring monthly cycle of Checkpoints. The administrator has been tasked with changing this to a weekly cycle by deleting...

Your customer has a VNX array with FAST Cache licensed with a single storage pool created. They currently use the Storage Pool for their general production environment, but would l...

Your customer has a VNX array with FAST Cache licensed and two storage pools created. Only Storage Pool A has FAST Cache enabled. They currently use both Storage Pools for their ge...

Analyzer indicates that a LUN has a Queue Length of 2.3 and an Average Busy Queue Length of 5.1, and that Average Seek Distance is 25 GiB for the 300 GB disks used in the RAID Grou...

Replication Manager (RM) is being used to create replicas for a SQL server installed on VMFS residing on an ESX server. The operations are sent from a separate virtual RM proxy hos...

Your customer would like to replicate their Oracle database between their two data centers. The data centers are located approximately 1500 km apart. Which array-based solution is...

You have designed a VNX for File implementation for a customer data environment that involves a high level of data duplication. The customer is concerned with disk efficiency, and...

You are designing a VNX for Block solution for a customer. The application is a high throughput OLTP and will require the use of a volume manager to combine multiple LUNs across mu...

An Oracle database is stored on an EMC VNX storage array and replicated to a second VNX array at a DR location. EMC RecoverPoint is providing the replication. The customer is curre...

A customer has a mix of Windows 2003 and Windows 2008 virtualized guests deployed in their vSphere v4 environment. They have purchased a new VNX array and are also upgrading their...

A customer has deployed a legacy application on their VNX storage system that is configured with NL-SAS drives. They are considering adding an application to this array. They have...

Your customer has implemented FAST Cache and FAST VP in their application environment. They have been monitoring drive performance, and have noticed that their Flash drives display...

A clone source LUN is 1 TiB in size. It performs 450 random 8 KiB IOPs with a 2:1 R/W ratio. As part of ongoing testing, the clone is fractured for five minutes and then resynchron...

Your customer is operating a payment processing application on a Windows Server cluster with the back-end Oracle databases running on Oracle Enterprise Linux (OEL). Both the applic...

A customer's database resides on a RAID 5 Pool with SAS drives. Which best practice should be followed to optimize Reserved LUN Pool disk performance?

Your customer is designing a Proof of Concept with SQL Server attached to a VNX. The storage design includes seven LUNs on a RAID Group. The system is generally very heavily loaded...