Pass the EMC EMC Certification E20-555 Questions and answers with CertsForce

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Viewing questions 41-50 out of questions
Questions # 41:

An Isilon customer wants a job to periodically validates the checksum of every block in the file system. What should be recommended to the customer?

Options:

A.

IntegrityScan


B.

MediaScan


C.

Dynamic Sector Repair


D.

Isilon Data Integrity


Expert Solution
Questions # 42:

A company has purchased an Isilon cluster. The storage administrator knows they will have a large number of clients with similar workloads connecting to the cluster through NFS, and connections will be maintained for a long time. Which two connection balancing policies should be recommended for initial use? (Choose two.)

Options:

A.

Round Robin and Connection Count


B.

CPU Utilization and Network Throughput


C.

Round Robin and CPU Utilization


D.

Connection Count and Network Throughput


Expert Solution
Questions # 43:

Your customer's initial use case was Home Directories. They implemented the cluster with four 1Gbps ports and LACP. They are planning to expand their cluster to support their core file services. They plan to upgrade their network infrastructure to 10 GbE to facilitate this.

What are two design impacts this change will have?

Options:

A.

Maximum performance is obtained by only using a single 10GbE interface per node.LACP and multiple links may be used to increase redundancy, but will not provide more overall performance to the system


B.

LACP and multiple links may be used to increase redundancy, but will not provide more overall performance to the system.FCoE should be considered for the External Network Ports on the nodes.


C.

Dual 10GbE ports on each node will enable throughput of 20Gbps.Only connect half of the nodes to the network.


D.

Maximum performance is obtained by only using a single 10GbE interface per node.Isilon can support up to 400MB/s per node


Expert Solution
Questions # 44:

Where are file system operations initiated on an Isilon node?

Options:

A.

L1


B.

NVRAM


C.

L2


D.

Disk


Expert Solution
Questions # 45:

What is the recommended namespace path for the access zone on a new Isilon cluster with SyncIQ license?

Options:

A.

/ifs//data


B.

/ifs///data


C.

/ifs//data


D.

/ifs///data


Expert Solution
Questions # 46:

Which type of link aggregation is supported with Isilon nodes?

Options:

A.

Aggregation of up to eight similar ports in the same cluster


B.

Aggregation across Ethernet ports in a node


C.

Aggregation of 10 GbE and 40 GbE ports


D.

Aggregation across two or four nodes


Expert Solution
Questions # 47:

Which Isilon product is recommended where low-latency and maximum performance is a critical factor?

Options:

A.

X-Series


B.

S-Series


C.

SmartQuotas


D.

NL-Series


Expert Solution
Questions # 48:

When designing Isilon solutions, which issue should you pay special attention to?

Options:

A.

Meet customer expectations


B.

Create a workflow document


C.

Conduct stakeholder interviews


D.

Follow all SSD sizing rules


Expert Solution
Questions # 49:

You are involved with a Proof of Concept where the performance is not what you expect. What can you use to collect process stack information and a listing of process waiting on I/O?

Options:

A.

netstat


B.

tcpdump


C.

isi statistics


D.

isi_get_itrace


Expert Solution
Questions # 50:

A customer environment is used for analytics on very large datasets. They are interested in using Isilon storage and Hadoop but are concerned about the costs.

How does Isilon change the scalability of a Hadoop environment?

Options:

A.

JobTracker and TaskTracker are offloaded to the Isilon cluster


B.

DataNode and TaskTracker are offloaded to the Isilon cluster


C.

NameNode and DataNode are offloaded to the Isilon cluster


D.

NameNode and JobTracker are offloaded to the Isilon cluster


Expert Solution
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