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Dell E20-655 Exam Practice Questions (P. 4)

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Question #16
A customer has a 10 node cluster running OneFS 6.5.5.5. They want to upgrade to the latest OneFS 7.1.x.x in a one hour maintenance window.
What is their only option?
  1. A
    A simultaneous upgrade to the latest OneFS 7.1.x.x
  2. B
    A rolling upgrade to the latest OneFS 6.5.5.x, followed by a rolling upgrade to the latest OneFS 7.1.x.x
  3. C
    A rolling upgrade straight to the latest OneFS 7.1.x.x
  4. D
    A simultaneous upgrade to the latest OneFS 6.5.5.x, followed by a simultaneous upgrade to the latest OneFS 7.1.x.x

Correct Answer:
A

Question #17
What is the difference between a rolling upgrade and a simultaneous upgrade?
  1. A
    A simultaneous upgrade reboots all nodes at the same time after upgrade. And a rolling upgrade will reboot each node in sequence after upgrading it.
  2. B
    A rolling upgrade will upgrade OneFS and then the firmware. And a simultaneous upgrade does both at the same time.
  3. C
    A rolling upgrade requires a reboot confirmation to proceed while a simultaneous upgrade starts with the lowest LNN.
  4. D
    A simultaneous upgrade reboots all nodes before the upgrade and a rolling upgrade reboots each node after upgrade.

Correct Answer:
A

Question #18
A customer needs to upgrade their 6 node Isilon cluster from OneFS 7.0 to OneFS 7.1 with minimal disruption.
What would be the best way to upgrade the cluster?
  1. A
    Perform a simultaneous upgrade of all nodes
  2. B
    Perform a rolling upgrade of all nodes
  3. C
    Perform a simultaneous upgrade of 1 node at a time
  4. D
    Perform a rolling upgrade of 2 nodes at a time

Correct Answer:
A

Question #19
In a rolling upgrade scenario, by default, when will each node reboot?
  1. A
    Each node will reboot automatically before the upgrade of the next node is initiated.
  2. B
    After all nodes are upgraded, each node will reboot one after the other.
  3. C
    After all nodes are upgraded, a controlled parallel reboot of all nodes is performed.
  4. D
    Each node will need a controlled reboot before the upgrade of the next node is initiated.

Correct Answer:
A

Question #20
What is the output for this command: isi_radish –q?
  1. A
    Display drive information and firmware version.
  2. B
    Display the CPU utilization of a node.
  3. C
    Display all critical alerts for the cluster.
  4. D
    Display the network utilization of a node.

Correct Answer:
A

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