EMC DES-1415 : Specialist - Technology Architect, PowerScale Solutions Exam

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EMC DES-1415 Exam Syllabus Topics:

EMC Specialist - Technology Architect, PowerScale Solutions Sample Questions:

1. A telecommunications company has a substantial amount of data. This data is being created by network elements within their environment. The company wants to change the way the network elements Call Detail Records (CDR) are stored and analyzed.
The existing infrastructure consolidates all of the CDRs into a table structure, and then ingests them into a large database. Once ingested, a query engine accesses the database and performs analysis on these files.
The system is functional; however, since the amount of CDRs generated will increase exponentially over the next year, the company is open to alternatives for storing and analyzing these records. In evaluating alternatives, the key requirements are to reduce cost, the amount of storage, and the amount of time to analyze the data.
The customer would like to use Hadoop to analyze the CDRs. After you have conducted an assessment of the workflow, you have recommended an Isilon Cluster to work within the Hadoop environment.
Which protocols would be the best fit when using Isilon for this customer's Hadoop workflow?
Response:

A) NDMP and SCP
B) SyncIQ and HTTP
C) NFS and HDFS
D) CIFS and FTP

2. Your customer has observed a degradation in response time while browsing for media files within the Production Media folder of the Isilon cluster. That directory now contains over five million files. It was confirmed that there are no network or edit station related causes.
What changes to the Isilon cluster will best accelerate the browsing performance?
Response:

A) Add A-Series Performance Accelerator nodes
B) Upgrade RAM on the nodes
C) Upgrade node access to 10 Gbps
D) Add Solid State Drives (SSDs) to the nodes

3. By default, which method is used by Isilon OneFS for SSDs?
Response:

A) Metadata read/write acceleration
B) Data on SSDs
C) Metadata read acceleration
D) Avoid SSDs

4. A customer has a 5 node Isilon cluster. The raw capacity of the cluster is 85% used. On average, the cluster has 4,000 users connected during office hours. The average CPU usage is 65%. The customer needs to delete some data to free up capacity. What should the customer do to minimize the effect of the deletion job?
Response:

A) Delete the data from a client directly connected to the cluster
B) Run the treedelete job with a high impact and high priority during office hours.
C) Run the treedelete job with the default impact and priority during out-of-office hours.
D) Run the treedelete job with a high impact and high priority during out-of-office hours.

5. 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 60 TB of RAW capacity. The following are the notes from meetings with the department heads.
Which is the minimum cluster configuration that meets the customer's requirements?
Response:

A) 3 S-Series Nodes using SmartPools and 3 NL-Series Nodes for Archive
B) 5 S-Series Nodes
C) 4 X-Series Nodes using SynqIQ to 4 NL-Series Nodes
D) 3 NL-Series Nodes using SynqIQ to 3 NL-Series Nodes

Solutions: