EMC E20-554 actual dump : Isilon Design Specialist Exam for Technology Architects

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EMC E20-554 Exam Syllabus Topics:

EMC Isilon Design Specialist Exam for Technology Architects Sample Questions:

1. A potential customer requires 4 PB of usable capacity to store media files. The workloads are a combination of streaming video delivery and long term archive of video assets.
There is very little space available in the customer's datacenter, so physical density is very important. The customer is concerned about performance impact and potential data loss when using 3 TB or larger drives.
What Isilon capabilities can address the customer's concerns?

A) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID
rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Data redistribution runs faster with more nodes in the cluster.
B) Isilon nodes have more drives per rack unit so fewer shelves are required.
Proactive hot sparing eliminates most drive rebuilds.
N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
C) Isilon does not perform rebuilds - data reprotection is typically 2x-3x faster than traditional RAID
rebuilds.
Data recovery is consistent, taking the same amount of time regardless of cluster size.
Isilon 'short strokes' 4TB drives to reduce rebuild time.
D) N+3 and N+4 Protection Levels exceed traditional RAID6 availability.
Proactive hot sparing eliminates most drive rebuilds.
Endurant Cache reduces the overhead for write operations.

2. In your second meeting with the customer you ask the following questions about their current unified SAN and NAS platform.
"Are you using an application to map users from NFS Exports to SMB shares? Is each site a separate LDAP or AD Domain?"
What functionality are you trying to understand in their environment and what is the comparable feature in IsilonOneFS?

A) Kerberos Infrastructure and Identity Management
B) User Management and AD Authentication
C) NFS Export Management and OneFS Cluster Management
D) Identity Mapping and Authentication Sources

3. -- Exhibit -
We have been engaged by a research hospital to help upgrade their Isilon installation. They currently have 12 previous generation Isilon nodes with 200TB of capacity and run on a 1Gbps network. They currently have 6 Illumina Hi-Seq Sequencers and an HPC cluster to process data. They would like to expand Isilon to 2PB of active data and 1PB of archive data. They use a third party data and metadata management service (IRODs) to stage data for analysis. The Isilon cluster is mainly used for analysis work with the HPC cluster.
-- Exhibit -
Before making any changes, the customer would like a graphical presentation of their existing array performance to present to management.What is the best tool to gather this information?

A) netstat
B) InsightIQ
C) tcpdump
D) isi_netlogger

4. Your customer purchased an Isilon cluster with eight X400 nodes for Home Directories. Your follow-up discussions have uncovered an opportunity to expand the cluster to support the Legal Department. As you prepare to complete the Workflow Profile Document, you meet with the customer to discuss data protection.
Which key areas should you address?

A) Protocols (SMB, NFS, FTP, HTTP, HDFS) Authentication and Directory Services Performance and latency concerns
B) Default cluster protection level Additional directory level protections Snapshots and replication
C) Default cluster protection level Backup windows and processes Concurrency of user access
D) WORM requirements Network ports for replication Snapshots for user restores

5. Refer to the exhibit.

You are analyzing a customer's existing Isilon environment using isi statistics in order to expand the cluster. When examining the protocol subcommand, you see the output as shown in the exhibit.
What does the data tell you about the workload?

A) It is mostly sequential reads.
B) It is metadata intensive.
C) It contains mostly random writes.
D) It uses large read requests.

Solutions: