EMC E20-885 Online Practice Questions and Exam Preparation

EMC E20-885 Online Questions & Answers

• Question 171:

  During file system replication, which VDM information is replicated to ensure CIFS data will be user accessible?

  A. CIFS share database
  B. Global groups database
  C. DNS information
  D. Usermapper database
  A. CIFS share database

• Question 172:

  A customer has several legacy servers running different Oracle versions. The legacy servers are not connected to shared storage. The customer wants to consolidate the legacy servers onto one new server to increase manageability, utilize the benefits of shared storage and replicate all database instances to a disaster recovery site.

  What Oracle key benefit can be used to accomplish this?

  A. OFA with RecoverPoint
  B. OFA with SnapView
  C. ASM with VNX Replicator
  D. ASM with RecoverPoint
  A. OFA with RecoverPoint

• Question 173:

  A customer plans to replicate the active database copy of an Exchange Server 2010 DAG (Database Availability Group) to their warm DR site using RecoverPoint/CRR. The Exchange server hosts a total of seven databases, and the sites are within eight km of each other. Which guideline must be followed for the solution to function as expected?

  A. "Database Reads (Recovery) Average Latency" should be below 50 ms.
  B. "Database\Log Record Stalls per second" should be below 10 per second
  C. "Database\Log Record Stalls per second" spikes should be below 50 per second
  D. "Database Reads (Recovery) Average Latency" spikes should be below 500 ms.
  B. "Database\Log Record Stalls per second" should be below 10 per second

• Question 174:

  You are managing protection using Unisphere for RecoverPoint. What is the result of disabling a Consistency Group?

  A. Copy journal will be cleared.
  B. Production journal will be cleared.
  C. Group will be deleted.
  D. Primary RPA will need to be re-assigned.
  A. Copy journal will be cleared.

• Question 175:

  A customer has a Windows-only environment connected to an EMC VNX for File at their main campus site. The customer plans to install a new EMC VNX at a remote branch office site. The new VNX will be used to implement a DR solution

  for their main campus VNX using VDMs and several quota-enabled file systems shared and available to clients via CIFS.

  Which solution do you recommend to the customer?

  A. Use VNX Replicator to replicate the VNX VDMs and associated file systems from the main campus site to the VNX system at the branch office site to provide an asynchronous DR solution.
  B. Use VNX Replicator to replicate the VNX VDMs and associated file systems from the main campus site to the VNX system at the branch office site to provide a synchronous DR solution.
  C. Use VNX SnapView Clones to copy the VNX block devices associated with the VNX file systems from the main campus site to the VNX system at the branch office site to provide a synchronous DR solution.
  D. Use VNX MirrorView/A to copy the VNX block devices associated with the VNX file systems from the main campus site to the VNX system at the branch office site to provide an asynchronous DR solution.
  A. Use VNX Replicator to replicate the VNX VDMs and associated file systems from the main campus site to the VNX system at the branch office site to provide an asynchronous DR solution.

• Question 176:

  A customer wants to deploy a high performance OLTP environment doing 10,000 IOPS with a R/W ratio of 3/2. They want to make use of VNX Snapshots. The total amount of space this database needs is 700 GB in two LUNs, which is sufficiently sized for the next two years. They want to deploy as few drives as possible.

  What would you recommend the storage configuration to be?

  A. A pool consisting of five 200 GB SLC Flash drives, in RAID 5 (4+1), with FAST-VP enabled
  B. A traditional RAID Group consisting of five 200 GB SLC Flash drives, in RAID 5 (4+1)
  C. A pool consisting of ten 200 GB eMLC Flash drives, in RAID5 (4+1), with FAST-VP enabled
  D. Two traditional RAID Groups of five 200 GB eMLC Flash drives each, in RAID 5 (4+1), with two striped metaLUNs
  A. A pool consisting of five 200 GB SLC Flash drives, in RAID 5 (4+1), with FAST-VP enabled

• Question 177:

  A customer configures SnapView clones on their EMC VNX. A 256 GB clone is fractured for 10 minutes. The source LUN performs fifty 32 KB random writes per second. The clone resynchronization is configured to 6 MB/s. How long will it take to resynchronize the clone?

  A. 10.5 minutes
  B. 21.0 minutes
  C. 35.0 minutes
  D. 60.0 minutes
  A. 10.5 minutes

• Question 178:

  A customer requests a performance review of their EMC VNX before FAST Cache is implemented. You notice a dedicated LUN has a read size of 4 KB, and the disks are performing reads of 4 KB and 16 KB. What is causing this behavior?

  A. Coalescing
  B. Pre-fetching
  C. Flushing
  D. Promotion
  B. Pre-fetching

• Question 179:

  A heterogeneous Pool is created as follows:

  5 x 200 GB FAST VP optimized Flash drives, configured as 4+1 R5 10 x 600 GB 10K rpm SAS drives, configured as 4+1 R5 16 x 2 TB NL-SAS drives, configured as 6+2 R6

  Ten equal-sized thick LUNs are created on the pool at 5 minute intervals. No space is left in the pool. All parameters are left at the default value. Testing is started at 9:00 A.M. on the 10 LUNs using IOmeter. The R/W ratio for the testing is set at 3:1, and 4 kB random I/Os are performed. What throughput do you expect to see from the LUN that was created second?

  A. 480 IOPS
  B. 960 IOPS
  C. 4,100 IOPS
  D. 5,600 IOPS
  A. 480 IOPS

• Question 180:

  Two new EMC VNX were implemented at a customer's primary and backup sites. Each VNX has a single active Data Mover. Multiple VDMs are configured on both VNX, each with a CIFS file system. The default mapping solution was implemented in a primary-secondary configuration.

  The customer completes a security audit and then observes new user authentication fails on the secondary site. Which TCP/UDP port is being blocked by the firewall?

  A. 12345
  B. 443
  C. 23
  D. 8088
  A. 12345