EMC EMC Certification E20-547 Questions & Answers

• Question 181:

  In a VNX Unified system, how can the lost+found and etc directories be hidden from the client when exporting a file system?

  A. Export the file system at the subdirectory level and not the root file system

  B. Use FDISK to mark the partition active prior to exporting

  C. Leave the Root Hosts section empty when exporting

  D. Select the Host Access Read-only check box prior to exporting.

  Correct Answer: A

• Question 182:

  What is a critical performance and availability consideration when configuring traditional RAID Groups on a VNX array?

  A. Larger RAID 5 groups have increased risk to availability and higher IO throughput

  B. Larger RAID 5 groups have decreased risk to availability and lower IO throughput

  C. Smaller RAID 5 groups have increased risk to availability and lower IO throughput

  D. Smaller RAID 5 groups have decreased risk to availability and higher IO throughput

  Correct Answer: A

• Question 183:

  When creating a SnapView session, where can a consistent start occur?

  A. On multiple source LUNs

  B. On multiple target LUNs

  C. On multiple reserved LUNs

  D. On multiple private LUNs

  Correct Answer: A

• Question 184:

  What is a critical capacity consideration when configuring traditional RAID Groups on a VNX array?

  A. Larger RAID 5 groups maximize the capacity available

  B. Larger RAID 6 groups maximize the capacity available

  C. Smaller RAID 6 groups maximize the capacity available

  D. Smaller RAID 5 groups maximize the capacity available

  Correct Answer: A

• Question 185:

  What is the correct VNX Block based VAAI operation?

  A. Array Accelerated Full Copy

  B. Array Accelerated Bulk copy

  C. Thick Lun Provisioning

  D. Pause and Resume

  Correct Answer: A

• Question 186:

  Which two protocols can be used for DNS communication on a Data Mover?

  A. TCP and UDP

  B. TCP and ICMP

  C. UDP and ICMP

  D. UDP and TLS

  Correct Answer: A

• Question 187:

  How do storage pool thick LUNs affect capacity?

  A. A storage pool thick LUN uses slightly more capacity than the amount of user data written

  B. A storage pool thick LUN uses less capacity than the amount the server operating system sees

  C. Capacity of a storage pool thick LUN uses the same capacity as the server operating system sees

  D. Capacity of a storage pool thick LUN uses less user capacity then a traditional LUN

  Correct Answer: A

• Question 188:

  What are features of VNX Snapshots?

  A. Uses redirect on first write. Lower write performance impact.

  B. Uses copy on first write. Supported with pool-based LUNs.

  C. Uses redirect on first write. Supported with all LUN types.

  D. Uses copy on first write. Does not require reserve LUN pool.

  Correct Answer: A

• Question 189:

  During the installation process of a VNX for Block and File system, you are prompted to change passwords for the default accounts.

  Which user password can be changed?

  A. sysadmin

  B. storageadmin

  C. admin

  D. administrator

  Correct Answer: A

• Question 190:

  What occurs after data compression of a RAID-group LUN?

  A. Source LUN is unbound from the RAID-group.

  B. The LUN is defragmented.

  C. Freed space is returned to the storage pool.

  D. Host I/O is restarted

  Correct Answer: A