EMC E20-885 Online Practice Questions and Exam Preparation

EMC E20-885 Online Questions & Answers

• Question 71:

  A storage administrator is finishing up some cabling in the production data center and notices that there is a flashing yellow LED light for a port on a Cisco IPS module. What does this indicate?

  A. There is a fault.
  B. The link is down.
  C. The link is disabled.
  D. Beaconing is enabled for the port.
  A. There is a fault.

• Question 72:

  Click on the calculator in the upper left-hand corner.

  A company plans to migrate their 10 TB Oracle 10g database to a new EMC VNX with FAST Suite and FAST Cache. What is the recommended minimum FAST Cache size that should be provisioned?

  A. 1 TB
  B. 500 GB
  C. 100 GB
  D. 200 GB
  B. 500 GB

• Question 73:

  Refer to the exhibit.

  

  LUN 30 is a 50 GB LUN on a 4+1 R5 group consisting of 300 GB drives. It is the only active LUN. I/O size is 4 kB. What can you infer about the I/O access pattern to LUN 30?

  A. I/O is bursty.
  B. Coalescing is occurring.
  C. LUN I/O is single-threaded.
  D. Full stripe writes are occurring.
  A. I/O is bursty.

• Question 74:

  A storage administrator creates a new file system on their EMC VNX. They observe that the new file system does not perform as well as the first set of file systems they created. AVM was used to create all file systems using pool LUNs. All disks in the VNX are the same size and speed SAS drives.

  When the storage administrator attempts to create another file system, using the same resources, the creation process fails. Why did the file system creation fail on the last attempt?

  A. AVM is unable to fulfill the file system creation request due to a lack of mapped pool resources.
  B. Thick and thin LUNs cannot be combined to fulfill the storage requirements.
  C. AVM requires that pool LUNs stripe five dvols together. Only four dvols were available.
  D. Thick and thin LUNs that were available to create the file system did not share the same service policy.
  A. AVM is unable to fulfill the file system creation request due to a lack of mapped pool resources.

• Question 75:

  A customer wants to create a file system for a highly sequential application. They plan to use the EMC VNX AVM feature to create the file system, using the clarsas_archive pool in a RAID 5 (4+1) configuration. They want to know how much data is being written to each dvol in the pool entry. Which property would they examine?

  A. stripe length
  B. block size
  C. queue depth
  D. stripe depth
  D. stripe depth

• Question 76:

  A DBA wants to create a replicated, recoverable copy of an Oracle 11g database environment that will reside on a number of EMC VNX target drives. The DBA performs the following:

  -Puts the required tablespaces in hot backup mode

  -Issues a checkpoint to the database

  -Synchronizes and fractures the Oracle device pairs

  -Ends hot backup mode

  -

  Brings the replicated copy online

  What action must the DBA take to enable the copy to start up successfully?

  A. Apply the Archive Logs
  B. Vary on the volume groups on the target volumes
  C. Copy the master Init.ora file to the target volume
  D. Copy the Oracle control file to the target
  A. Apply the Archive Logs

• Question 77:

  Your team is planning a DR test for a CIFS DR solution using VNX for File. You need to confirm that users will be able to access data at the DR site in the event of a source site disaster. The VNX at the source site will not be shut down during the DR test.

  How should you proceed with the test?

  A. Replication switchover from the source VNX
  B. Replication switchover from the DR site VNX
  C. Replication failover from the DR site VNX
  D. Replication failover from the source VNX
  A. Replication switchover from the source VNX

• Question 78:

  A customer is implementing an Oracle database on an EMC VNX. Due to cost constraints, the customer cannot dedicate physical disks for the redo logs. How can the disks be laid out to reduce the probability of hitting the VNX write pending limit?

  A. Use a striped metavolume
  B. Use concatenated disks
  C. Use a large RAID 5 LUN
  D. Use a large RAID 1/0 LUN
  A. Use a striped metavolume

• Question 79:

  A customer is testing their new MirrorView/A configuration between two EMC VNX. What will be the state of a newly created mirror after it is added to a previously synchronized Consistency Group?

  A. Quasi-consistent
  B. Out-of-sync
  C. Synchronized
  D. Consistent
  A. Quasi-consistent

• Question 80:

  A customer configured an EMC VNX to serve home directories to users. Users report intermittent timeouts accessing the home directories. While troubleshooting, you observe you can successfully connect to the file share, and can ping the VNX interfaces. What is the most likely cause of this performance issue?

  A. Duplex mismatch
  B. LACP speed mismatch
  C. Incorrect subnet mask
  D. Misconfigured authentication
  A. Duplex mismatch