E20-655 Exam Questions
95 real E20-655 exam questions with expert-verified answers and explanations. Page 1 of 2.
- Question #1
In a rolling upgrade scenario, by default, when will each node reboot?
- Question #2
What is the output for this command: isi_radish -q?
- Question #3
Which command should be used to verify the cluster's node firmware?
- Question #4
Which of the following offers integration with other EMC remote support options for Isilon clusters?
- Question #5
Which capability does the "isi_nodes" command provide?
- Question #6
Which process is executed using the "rm" command?
- Question #7
Which job executes customize file pool policies?
- Question #8
What are the three sections of an event type number?
- Question #9
What procedure requires a field service engangement with OneFS 7.0.2?
- Question #10
What type of commands can be run using the command line interface?
- Question #11
What element of the command syntax: "isi sync policies modify exam_policy1 --log-level error" is "policies"?
- Question #12
Which element of the command syntax: "isi sync policies modify exam_policy1 --log-level error" is "modify"?
- Question #13
Which two isi_ prefix commands are allowed for use by a customer?
- Question #14
What statement best describes the "isi devices" command?
- Question #15
What is the expected displayed output after running "isi devices -d 3"?
- Question #16
A customer has received an alert regarding a disk drive failure on node 2 of a 4 node cluster running OneFS 7.x. What isi command should be used to investigate which disk has the p...
- Question #17
Your customer has installed a series of new nodes, and wishes to remove the old node 6 now that the installation is complete. Which command should be used to perform this task clea...
- Question #18
Your customer comes to you with a sysctl command that they found on the Internet. They want to apply this to their cluster. What should you do?
- Question #19
What description best fits sysctl on Isilon nodes?
- Question #20
What best describes sysctl commands?
- Question #21
What is the purpose of the isi_sysctl_cluster command?
- Question #22
What is a default logging level for OneFS?
- Question #23
What is the default size of the /var/log partition?
- Question #24
What are methods for uploading logs to Isilon Support?
- Question #25
What is the purpose of an incremental log gather?
- Question #26
Which protocol is available for uploading logs from the web administration interface?
- Question #27
What is a potential result of increasing the level of logging detail on your cluster?
- Question #28
Isilon support has requested that you upload logs from a large customer cluster. The customer is concerned because the log gather they ran two days ago took 23 hours to run. How ca...
- Question #29
Which log file contains information about possible drive errors?
- Question #30
Where do you go to access AVP?
- Question #31
What folder structure is used to store log files in AVP?
- Question #32
How long does the Log Processor retain a backup of log information in the archive directory?
- Question #33
Where does the Log Processor retain a backup of log information for 14 days?
- Question #34
A customer has sent you a very large log set. You want to investigate the messages logs in the /messages folder in a log set for the last group change. If the cluster name is "isil...
- Question #35
A situation occurs on the cluster and an event is generated. An administrator then quiets the event. What does it mean that the event was quieted?
- Question #36
What is true about the /var/db/celog/events.db file?
- Question #37
Which methods can be used to notify recipients of events?
- Question #38
Which methods can be used to notify recipients of events with OneFS 7.1?
- Question #39
On which node that has external network access does the master isi_celog_coalescer service run?
- Question #40
Which command displays details for a specific event?
- Question #41
You are looking at a cluster event which has an Ancestry of 1.215 and a Instance ID of 1.260. What fact about the event can be derived from this information?
- Question #42
What resource(s) are available to explain event types by code?
- Question #43
Which condition could make it necessary to reset the CELOG DB?
- Question #44
Your customer has provided CELOG events database from their cluster. Which tools can be used to view this database?
- Question #45
What best describes a requirement of the CELOG Master Coalescer node?
- Question #46
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?
- Question #47
In OneFS 7.1 what combination of jobs can be run simultaneously?
- Question #48
What is a piece of work delegated by the coordinator to a manager for execution by worker threads?
- Question #49
How is the job engine's coordinator designated?
- Question #50
What does the job engine do?