EMC E20-885 Online Practice Questions and Exam Preparation

EMC E20-885 Online Questions & Answers

• Question 231:

  You are setting up Perfmon to record the number of I/O per second for a customer's clustered SQL Server prior to a migration to an EMC VNX. Which Perfmon counter should you add to the log view to obtain this information?

  A. Logical Disk\Disk Reads/sec and Logical Disk\Disk Writes/sec of the database and log LUNs
  B. Physical Disk\Disk Reads/sec and Physical Disk\Disk Writes/sec of the database and log LUNs
  C. Logical Disk\Disk Reads/sec and Logical Disk\Disk Writes/sec of the database LUNs
  D. Physical Disk\Disk Reads/sec and Physical Disk\Disk Writes/sec of the database LUNs
  A. Logical Disk\Disk Reads/sec and Logical Disk\Disk Writes/sec of the database and log LUNs

• Question 232:

  You are implementing a VNX using AVM, and you cannot create any more dvols from their remaining classic LUNS to create a stripe volume. What could be a reason for this?

  A. LUNs must come from different RAID Groups.
  B. LUNs must have different RAID configurations.
  C. LUNs must not exceed 18 TB in size.
  D. LUNs must come from the same RAID Group.
  A. LUNs must come from different RAID Groups.

• Question 233:

  A healthcare company uses MirrorView replication between VNX located at their two data centers. They use the Write Intent Log (WIL) feature on both VNX. There was an outage at the production data center and production workload was transferred to the DR data center. When then production workload was failed back to the production data center, the customer found all MirrorView LUNs completed a full re- synchronization. What caused this situation?

  A. The WIL information is stored on the SP Cache and was lost during the outage of the production data center.
  B. The WIL information was lost during the production data center outage and a full re- synchronization of all the LUNs was required.
  C. The WIL information was not transferred from the production data center to the DR data center after the outage.
  D. The WIL information is non-relevant after the MirrorView secondary images have been promoted to primary image.
  D. The WIL information is non-relevant after the MirrorView secondary images have been promoted to primary image.

• Question 234:

  Six months ago, you implemented an SQL 2008 database and followed EMC best practices for sizing and layout. The database is now experiencing performance slowdowns. You configure Perfmon to capture "disk bytes per second",

  "average disk queue length", and "percent disk time" in a log view for the database volumes. The log shows the disk bytes per second remained steady but there was an increase in the average disk queue length.

  Which action should you take to solve this problem?

  A. Increase the number of spindles servicing this database.
  B. Use SQL Activity Monitor to identify rogue queries that may be affecting performance.
  C. Migrate the database to lower latency spindles.
  D. Decrease the queue length setting on the HBA.
  A. Increase the number of spindles servicing this database.

• Question 235:

  A staffing company runs their employee payroll on an Oracle 11g environment on an EMC VNX. While the weekly payroll is running against Oracle, they also run reports. Which Oracle and VNX features would combine to handle hot-spots?

  A. FAST Cache and ASM
  B. FAST Cache and FAST VP
  C. ASM and Thin Provisioning
  D. FAST VP and Thick LUNs
  A. FAST Cache and ASM

• Question 236:

  You are planning a CIFS DR solution for two existing EMC VNX. Each VNX has dual Control Stations. Each VNX is also configured for a RecoverPoint protection solution on other VNX LUNs that are non-file related. What recommendation would you give the customer concerning the CIFS DR solution?

  A. Configure IP aliasing on the Control Stations for both source and destination VNX systems before configuring VNX Replicator
  B. Configure IP aliasing on the Control Stations for both source and destination VNX systems after configuring VNX Replicator
  C. Configure IP aliasing on the source VNX system Control Stations before configuring VNX Replicator, and then configure IP aliasing on the destination VNX system Control Stations after configuring VNX Replicator.
  D. Configure IP aliasing on the source VNX system Control Stations before configuring VNX Replicator and use RecoverPoint to provide protection of the source VNX Control Stations to the destination VNX.
  A. Configure IP aliasing on the Control Stations for both source and destination VNX systems before configuring VNX Replicator

• Question 237:

  A customer has implemented RecoverPoint/CDP to replicate their Oracle database environment. They must be able to recover the database in the event corruption occurs during replication. What action do you recommend to ensure a point-in-time recoverability of the database?

  A. Back up the control file to trace
  B. Copy the control file to a different LUN
  C. Use SnapView snapshots to protect the control files
  D. Copy the redo logs to a different LUN
  A. Back up the control file to trace

• Question 238:

  A customer wants to replicate a CIFS environment from a legacy EMC Celerra to a new EMC VNX. Users are able to access CIFS shares from both arrays. The CIFS shares are on different networks and replication is not running. The customer wants to make sure there will be no network restrictions preventing replication between the data movers on two different networks. What TCP ports should they ask the network team to open?

  A. 8888, 8887, 5081
  B. 80, 443, 8080
  C. 5057, 445, 5087
  D. 23, 25, 22
  A. 8888, 8887, 5081

• Question 239:

  A customer plans to migrate from an EMC CLARiiON to a new EMC VNX. They want to migrate some of the CLARiiON LUNs to thin LUNs on the VNX. Which SAN Copy configuration will allow them to avoid a fully provisioned thin LUN?

  A. Push from thin LUN to thin LUN
  B. Pull from thin LUN to thin LUN
  C. Push from traditional LUN to thin LUN
  D. Pull from traditional LUN to thin LUN
  A. Push from thin LUN to thin LUN

• Question 240:

  A customer plans a CIFS DR solution for a Windows-only environment connected to an EMC VNX for File. The customer has the VNX antivirus solution implemented on the source site. The customer asks you if there are additional

  considerations regarding antivirus they need to account for in their CIFS DR solution.

  What do you advise the customer?

  A. A global CIFS server will need to be configured on the VDMs CIFS server that is replicated to the destination site to provide antivirus protection during failover.
  B. A global CIFS server will need to be configured on a physical Data Mover on the destination site to provide antivirus protection during failover.
  C. The CIFS DR solution is not compatible with the VNX antivirus feature at either the source or destination site.
  D. The destination site is protected by the source site VNX antivirus feature during failover events.
  B. A global CIFS server will need to be configured on a physical Data Mover on the destination site to provide antivirus protection during failover.