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Code d'Examen: E20-555
Nom d'Examen: EMC (Isilon Solutions and Design Specialist Exam for Technology Architects)
Questions et réponses: 225 Q&As

Code d'Examen: E20-329
Nom d'Examen: EMC (Technology Architect Backup and Recovery Solutions Design Exam)
Questions et réponses: 206 Q&As

Code d'Examen: E20-017
Nom d'Examen: EMC (Information Availability Design Specialist Exam for Data Center Architects)
Questions et réponses: 108 Q&As

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NO.1 A customer is making a decision between Isilon and a competitor's offering. They currently
have 100TB of usable capacity and are forecasting 100% growth per year for the next three years,
which will require them to lease additional space in their co-located data center. The CFO finds ROI
and TCO to be important decision criteria.
Which statement best emphasizes the value of Isilon for this customer?
A. Isilon's OneFS data protection policies offer substantially lower overhead than competitive RAID
based NAS solutions.
B. An IDC study found that Isilon requires 95% less down time hours per year compared to other
competitors.
C. The competition cannot offer a scale-out NAS so as capacity is added to the array, performance
may degrade.
D. Isilon's OneFS allows administrators to manage much larger amounts of capacity than
competitive offerings.
Answer: A

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NO.2 A Media and Entertainment company is considering changing from 2K resolution to 4K
resolution. They will continue to use the DNxHD 220 codec.
Assuming everything else stays the same, how will this change affect storage?
A. Storage will be half as large
B. Storage requirements will not change
C. Storage will be twice as large
D. Storage will be four times as large
Answer: B

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NO.3 An Isilon customer created a scheduled SyncIQ policy to replicate data from an
Enterprise-mode SmartLock directory. The source cluster is now unusable and the target cluster
does not automatically allow writes to the data in the replicated SmartLock directory.
What is the reason why the target cluster did not automatically allow writes of the data?
A. SyncIQ Automated failover is not supported for SmartLock directories; however, manual failover
is allowed.
B. Automated failover and manual failover are not allowed on SmartLock directories on the target
cluster.
C. A SyncIQ job was running while the source cluster became unusable, thereby removing all data
on the target directory.
D. SnapshotIQ was not licensed on the target cluster; the snapshot of the directory is not available
for use by SyncIQ.
Answer: A

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NO.4 What does Isilon OneFS use to re-write data when a disk read fails?
A. Dynamic Sector Repair
B. NVRAM
C. Isilon Data Integrity
D. CRC
Answer: A

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NO.5 An Isilon customer has an environment supporting a wide range of different workloads. They
want to assign clients to performance tiers based on the resources needed.
What can the customer use to meet this requirement?
A. SmartConnect Zones
B. Load Balancing
C. Client Connection Zone
D. SmartPools Advanced
Answer: A

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NO.6 -- 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 -
The customer will add two more Illumina Hi-Seq Sequencers in the next 6 months.
Once these are added, what is the total amount of data from all the sequencers they can expect to
add per month?
A. 9.6 TB
B. 4.8 TB
C. 1.2 TB
D. 14.4 TB
Answer: A

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NO.7 A customer created one month of snapshots; one snapshot every 8 hours for 30 days on an
Isilon cluster using SnapshotIQ. They are now deleting the snapshots randomly and experiencing
overhead to the cluster.
How can the snapshots be removed while avoiding the overhead caused by this process?
A. Delete the snapshots in order
B. Use SmartPools to move the snapshot data to a different tier
C. Snapshots cannot be deleted
D. Remove the directory
Answer: A

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NO.8 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
Answer: C

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EMC E20-329 examen pratique questions et réponses

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Code d'Examen: E20-329
Nom d'Examen: EMC (Technology Architect Backup and Recovery Solutions Design Exam)
Questions et réponses: 206 Q&As

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NO.1 An EMC NetWorker customer wants to use the deduplication option. The requirement for a database
server in their enviroment is to perform deduplication backups for file system data and NetWorker tape
backups for database data. They want to allow a maximum of two parallel streams for file system backups
and a maximum of four steams for database backups.
How can this be accomplished?
A.
B.
C.
Group: Bsckups
Parallelism: 0
Client for FS backups
Parallelism: 2
Client for FS backups
Parallelism: 4
D.
Group: Bsckups
Parallelism: 4
Client for FS backups
Parallelism: 2
Client for FS backups
Parallelism: 4
Answer: C

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NO.2 An organization is backing up a combination of databases, e-mail, and file system data types in their
data center to a Data Domain appliance using a single backup server. The backup system administrator
creates separate subdirectories for each of the three data types under the default share.
What benefit is provided by this approach?
A. Analyze compression with more granularity
B. Simplity backup device configuration
C. Enhance performance of the database backup
D. Improve file system cleaning performance
Answer: B

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NO.3 As illustrated in the exhibit, a customer has a backup environment that includes clients and server
managed by a backup media server. Data is written to a primary storage device and archived to an
application server. The customer has onsite retention strorage, which is replicated to a disaster recovery
site. In addition, archive-to-tape is requires.
Which components would you replace when initiating a Data Domain solution?
A. onsite retention storage and offsite disaster recivery storage
B. Backup media server and clients
C. Primary storage and onsite retention storage
D. Backup media server and archive application server
Answer: A

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NO.4 An EMC Avamar customer s Gen-1 system with 4 TB of GSAN capacity has reached read-only
threshold. The customer indicates that the deduplicated backup data accounts for approximately 3.5 TB.
What is the most likely cause for the read-only threshold being reached?
A. Deduplication rate is less than expected, accounting for the remaining GSAN capacity
B. Combination of system overhead, logs, and checkpoints account for the remaining GSAN capacity
C. RAIN overhead accounts for the remaining available GSAN capacity
D. Checkpoints and logs account for the remaining GSAN capacity
Answer: C

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NO.5 Click the Calculator icon in the upper left-hand corner.
Acustomer has a new Avamar server with four 2 TB data nodes. This server is backing up two Avamar
clients. The first client has 8 GB of RAM and two file systems. The first file system has 3 million files
consuming. 75 TB. The second file system contains 5 million files consuming 1 TB of space.
The second client has 10 GB of RAM and one file system containing 4 million files consuming 1.2 TB of
space. Both clients will belong to the same backup group. How long will the steady-state backup group be
expected to run?
A. 5 hours
B. 6 hours
C. 7 hours
D. 8 Hours
Answer: B

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NO.6 A customer has a Data Domain appliance that has reached 90% of maximum capacity. The customer
does not want to purchase any additional storage.
Wht will increase the average available capacity of the Data Domain appliance?
A. Decrease the backup retention period
B. Increase the snapshot expiration period
C. Increase the nurrter of strearns
D. Decrease the cleaning frequency
Answer: A

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NO.7 The EMC account team has been asked to design a NetWorkwwe backup solution with the following
requirements.
1. One copy of backup data needs to be stored locally.
2. An additional copy of backup data needs to be stored on tape at an offsite location.
What should be done to satisfy the new regulations with minimal impact to the current backup
performance?
A. Clone to tape and send the clone copy to the remote location
B. Back up the data concurrently to the remote and local locations
C. Archive the backup data to the remote location
D. Archive the data to the remote location before being backed up locally
Answer: C

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NO.8 Acustomer is piloting a Data Domain appliance and notices that performance in the writing of backups is
not optimal. Based on the System Show Performance metrics represented in the exhibit, which operation
will provide the most improved the most improved performance?
A. Reduce the read streams
B. Suspend verification
C. Disable cleaning
D. Disable replication
Answer: A

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NO.9 A customer has an operational EMC NetWorker enviroment using an Avamar deduplication node. They
want to protect the Avamar deduplication node using replication. The customer has approached EMC for
advice on what considerations thaey should take into account.
What is a consideration in this envitonment.?
A. NetWorker automatically configures all replication targets associated with a given deduplication node
B. Scheduled replications of a NetWorker deduplication node must be set up in Avamar
C. Recovery from the replications node must be performed from Avamar Administror
D. Schedled replications of a NetWorker deduplication node must be set up in NetWorkwe
Answer: B

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NO.10 A customer is using Data Protection Advisor (DPA) to moitor their backup enviroment. What is a
benefit of using remote Collectors?
A. Reduces the amount of information being transferred to the DPA server
B. Collects system-related statistics for a given host
C. Improves the collection performance of backup statistics
D. Provides more complete backup reports
Answer: B

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