EMC E20-555 Online Practice Questions and Exam Preparation

EMC E20-555 Online Questions & Answers

• Question 161:

  You meet with the IT Director of a large single site campus. The IT department has recently taken over Physical Security from the facilities department and plans a complete overhaul of the surveillance solution. They are looking to you as a storage architecture expert to provide the correct amount of storage needed. The IT Director asks you what items they need to provide in order to size this solution.

  What data do you require from the customer?

  A. Resolution CODEC Frames Per Second (fps) Number of Devices Retention Time
  B. Pixel Count CODEC Color Sampling Frames Per Second (fps) Number of Devices Retention Time
  C. Pixel Count CODEC Color Sampling Frames Per Second (fps) Number of Devices Video Management System Evidence Collection Period
  D. Bit rate per camera Camera Manufacturer Video Management System Retention Time
  A. Resolution CODEC Frames Per Second (fps) Number of Devices Retention Time

• Question 162:

  There is a need to carry out a tech refresh of an Isilon cluster. Old nodes must be removed because of space constrains in the data center. What methodology is least disruptive and will retain the file system structure, configuration, data, and DNS information?

  A. Install the new nodes as a new cluster and use SyncIQ to replicate the data to the new nodes
  B. Add the new nodes to the cluster and use SmartFail to move the data to the new nodes
  C. Install new nodes into the cluster and use SyncIQ to replicate the data from the old to the new nodes
  D. Install the new modes into the cluster and migrate using a host-based utility
  C. Install new nodes into the cluster and use SyncIQ to replicate the data from the old to the new nodes

• Question 163:

  Which SmartConnect policies are used for workloads that have short lived connections such as HTTP and FTP?

  A. Connection count and round robin
  B. Round robin and CPU usage
  C. Throughput and CPU usage
  D. Throughput and connection count
  C. Throughput and CPU usage

• Question 164:

  A customer has 10 files that are each 10 MB in size. They created two clones of each file on their source cluster. They now want to use SyncIQ to replicate the original files and the cloned files to a target cluster. Excluding protection overhead, how much disk space will the files use on the target cluster?

  A. 100 MB
  B. 200 MB
  C. 300 MB
  D. 600 MB
  C. 300 MB

• Question 165:

  Refer to the exhibit.

  

  A large hospital chain has approached you to redesign their storage infrastructure. The head of IT believes their requirement is for 100 TB of RAW capacity. They want to consolidate their PACS, file shares and home directories onto one cluster and require very fast enumeration of the directories. The following are the notes from meetings with the department heads.

  Which is the best cluster configuration that meets the customer's requirements?

  A. 4 x X-Series nodes using SynqIQ to 4 x NL-Series nodes
  B. 3 x S-Series nodes using SmartPools and 3 x NL-Series nodes for Archive
  C. 5 x S-Series nodes
  D. 3 x NL-Series nodes using SynqIQ to 3 x NL-Series nodes
  A. 4 x X-Series nodes using SynqIQ to 4 x NL-Series nodes

• Question 166:

  At a minimum, how many connected and available nodes are required to maintain quorum in a 25-node cluster?

  A. 10
  B. 12
  C. 13
  D. 17
  C. 13

• Question 167:

  How many file systems are present in a 20-node Isilon X200 cluster?

  A. 1
  B. 2
  C. 3
  D. 4
  A. 1

• Question 168:

  How much space is consumed by a 4 KB file when the file data is written to the Isilon cluster?

  A. 4 KB
  B. 8 KB
  C. 16 KB
  D. 32 KB
  B. 8 KB

• Question 169:

  Your customer is moving from a Restaurant/Bar business model to a Restaurant/Casino business model. You are helping architect the upgrade of a current 4-node X200 48 TB Isilon cluster, with 65% utilized for their video surveillance operations.

  They wish to achieve the following:

  Upgrade from 1280 x 720 resolution, with a 15 days retention policy, to 2048 x 1536 resolution with a 30 days retention policy.

  What is the minimum number of nodes of the same type will you need to add in order to meet the required changes and not exceed 70% raw capacity?

  A. 6 nodes
  B. 10 nodes
  C. 14 nodes
  D. 18 nodes
  A. 6 nodes

• Question 170:

  You are asked to size a cluster for a file sharing environment. nfsstat indicates that no more than 10% of the requests are namespace operations (e.g. GETADDR, SETADDR). There will be 10,000 active Linux users, connecting over NFS.

  Which cluster configuration would you recommend?

  A. Ten X200 (27 TB) 48 GB RAM, 600 GB SSD, N+2:1
  B. Five X400 (120 TB) 96 GB RAM, 2.4 TB SSD, N+2
  C. Ten X400 (60 TB) 48 GB RAM, 2.4 TB SSD, N+2:1
  D. Eight X200 (36 TB) 24 GB RAM, no SSD, N+2:1
  A. Ten X200 (27 TB) 48 GB RAM, 600 GB SSD, N+2:1