EMC E20-655 Actual Free Exam Questions & Community Discussion

Exam Code/Number: E20-655
Exam Name/Title: Specialist - Platform Engineer, Isilon Exam
Certification Provider: EMC
Corresponding Certification: EMCPE Isilon

Exam Questions: 112
Updated On: May 30, 2026

Question #21

What type of commands can be run using the command line interface?

A. Limited public commands, masked public commands, UNIX commands

B. Public commands, masked UNIX commands and limited internal commands

C. Masked public commands, windows and non-internal commands

D. Public commands, internal commands and UNIX commands

Discussion 0

Correct Answer: D Vote an answer

Question #22

A customer has received an alert regarding a disk drive failure on node 2 of a4 node cluster running OneFS 7.x. What isi command should be used to investigate which disk has the problem?

A. isi devices -n 2

B. isi devices -d 2

C. isi config >>> status

D. isi status -d 2

Discussion 0

Correct Answer: B Vote an answer

Question #23

You are creating a file pool policy and have chosen to add file matching criteria to your policy. What can be used as file criteria?

A. Modify time

B. File owner

C. Protection level

D. File permissions

Discussion 0

Correct Answer: A Vote an answer

Question #24

Which process is executed using the "rm" command?

A. List files and directories

B. Paginate displayed output

C. Delete files and directories

D. Display, copy, create or combine text files

Discussion 0

Correct Answer: B Vote an answer

Question #25

Which job engine v2.0 component runs on a node, communicates with the job coordinator and coordinates tasks with the three managers on the cluster?

A. Director

B. Managers

C. Workers

D. Coordinator

Discussion 0

Correct Answer: A Vote an answer

Question #26

What is the default size of the /var/log partition?

A. 500MB or 2GB depending on the version of OneFS.

B. As defined by parameters set in the node initialization wizard.

C. As large as the cluster size minus the production data.

D. 500MB by default or more if configured by an administrator at setup.

Discussion 0

Correct Answer: A Vote an answer

Question #27

A customer reports that their SMBv2 clients are not successfully failing over from one node to another when nodes reboot, even though they licensed and configured SmartConnect.
What should you tell the customer?

A. SmartConnect will not handle node failures unless the DNS server has been configured to delegate resolution to the cluster.

B. SmartConnect can handle the node failures but an SMB-aware load balancer will make the transition seamless.

C. SMBv2 will fail over correctly once the customer's SmartConnect installation is configured for dynamic pools.

D. SMBv2 is a stateful protocol, and will not fail over from node to node without reconnection.

Discussion 0

Correct Answer: D Vote an answer

Question #28

On which node that has external network access does the master isi_celog_coalescer service run?

A. The node with the lowest LNN

B. The node with the highest LNN

C. Any random node in the cluster

D. The first node that receives an event

Discussion 0

Correct Answer: A Vote an answer

Question #29

Referring to the data protection formula N+M, what does the M stand for?

A. Number of nodes in the node pool

B. Number of protection stripe units

C. Number of nodes the file is striped across

D. Number of data stripe units

Discussion 0

Correct Answer: B Vote an answer

Question #30

You have been asked to configure SmartConnect basic on an Isilon cluster. Which load balancing connection policy should be configured?

A. CPU Usage

B. Connection Count

C. Round Robin

D. Network Throughput

Discussion 0

Correct Answer: C Vote an answer

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