EMC E20-885 Online Practice Questions and Exam Preparation

EMC E20-885 Online Questions & Answers

• Question 191:

  You are planning for fracture granularity.

  What granularity should you use to track updates to a 1 TB clone source LUN?

  A. 64 KB
  B. 128 KB
  C. 256 KB
  D. 512 KB
  A. 64 KB

• Question 192:

  An implementation engineer installs a DR solution to protect ten CIFS servers at site A. VNX Replicator will be used to replicate these servers and their shares from Site A to Site B. How many Virtual Data Movers should be configured for the servers to be protected on Site A to ensure maximum portability?

  A. 5
  B. 10
  C. 20
  D. 1
  B. 10

• Question 193:

  A customer requests a performance review of their EMC VNX before FAST Cache is implemented. You notice a dedicated LUN has a write size of 4 KB, and the disks are performing writes of 8 KB. What is causing this behavior?

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

• Question 194:

  A storage pool used for FAST VP has the following configuration:

  Flash drives: 1,000 GB, with 500 GB free SAS drives: 5,000 GB, with 1,500 GB free NL-SAS drives: 19,000 GB, with 3,000 GB free The tiering policy is set to Auto. An additional 250 GB of new data is written to the storage pool. What is the data distribution after the data is written?

  A. Flash drives: 475 GB free; SAS drives: 1,425 GB free; NL-SAS drives: 2,850 GB free
  B. Flash drives: 250 GB free; SAS drives: 1,000 GB free; NL-SAS drives: 3,000 GB free
  C. Flash drives: 500 GB free; SAS drives: 750 GB free; NL-SAS drives: 3,000 GB free
  D. Flash drives: 490 GB free; SAS drives: 950 GB free; NL-SAS drives: 2,810 GB free
  A. Flash drives: 475 GB free; SAS drives: 1,425 GB free; NL-SAS drives: 2,850 GB free

• Question 195:

  Which method of connectivity can be used for storage access from a vRPA to the replication volumes on the VNX?

  A. iSCSI
  B. Fibre Channel via a SAN
  C. Fibre Channel via Direct Connect
  D. FCoE
  A. iSCSI

• Question 196:

  A System Administrator is configuring Data Mover interfaces. They want to keep the same IP addresses on both sites, but also want to reduce the risk of having duplicate IPs on the same network. How can this be accomplished?

  A. The non-production site interface must be manually configured to be off-line. During a failover, the interface must be manually configured to be on-line.
  B. The non-production site interface must be manually configured to be off-line. During a failover, the interface will automatically go on-line.
  C. There is no need for manual manipulation of the interfaces during a failover operation.
  D. Interfaces on both sites can be up but DNS cache must be flushed during a failover.
  A. The non-production site interface must be manually configured to be off-line. During a failover, the interface must be manually configured to be on-line.

• Question 197:

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

  A SQL database requires 1,000 I/O per second with 85% reads and 15% writes. If RAID 1/0 is used, what is the total number of spindles required to generate the required I/O per second?

  A. Ten 10K drives
  B. Four 15K drives
  C. One Flash drive
  D. Fourteen 7.2K drives
  A. Ten 10K drives

• Question 198:

  A customer's EMC VNX supports several Windows and UNIX application servers. The customer is concerned about VNX performance. By monitoring their switches, they notice there is heavy traffic between the servers and the VNX. On the VNX, the hard disks seem to be heavily accessed.

  The customer wants to identify which application server workload type may be causing the observed behavior. What compound server_stats command do you suggest?

  A. cifs-std and nfs-std
  B. cifsOps-std and nfsOps-std
  C. diskVolumes-std and netDevices-std
  D. cifs and nfs
  A. cifs-std and nfs-std

• Question 199:

  A customer is running Exchange 2010 on an EMC VNX. The customer recovery SLA mandates they cannot lose more than 10 MB of mail data, and the mail system cannot be down for more than five minutes. What should you implement to meet these recovery objectives without impacting Exchange performance or the recovery SLA?

  A. Use a DAG with three database copies
  B. Use Replication Manager with Clones
  C. Use Replication Manager with snapshots
  D. Use log shipping with MirrorView/A
  B. Use Replication Manager with Clones

• Question 200:

  You implement a CIFS DR solution for a customer using a One-to-Many replication topology. The customer asks you to explain replication behavior under the following conditions: Production site failover or switchover to a DR site

  

  Replication start and reverse is performed

  

  What do you advise the customer?

  A. The original production site remains a One-to-Many replication source for the other remaining DR sites.
  B. The original production site goes into cascade mode to remain a source of replication for the remaining DR sites.
  C. All remaining replications sessions to the other DR sites are suspended.
  D. The DR site becomes a source of replication for the remainder of the other DR sites and the original production site is marked as invalid.
  B. The original production site goes into cascade mode to remain a source of replication for the remaining DR sites.