EMC Technology Architect E20-545 Questions & Answers

• Question 141:

  Which VNX feature lets you dynamically expand the capacity of a single LUN (base LUN) into a larger unit?

  A. Activation

  B. ALUA

  C. metaLUN

  D. Volume groups

  Correct Answer: C

• Question 142:

  A systems administrator wants to configure Data Mover networks for performance. Only one network switch is available.

  At least three physical ports on the Data Mover can be used for this solution.

  Which VNX networking solution would best meet this requirement?

  A. LACP

  B. Ethernet channel

  C. VLAN

  D. FSN

  Correct Answer: A

• Question 143:

  What condition receives the highest order criteria selection during a proactive sparing event?

  A. Failing drive in-use capacity

  B. Hot spare location

  C. Speed

  D. Same drive type

  Correct Answer: A

• Question 144:

  In a dual Control Station configuration, how do Control Stations communicate with each other?

  A. Intelligent Platform Management interface (IPMI)

  B. Interswitch Link (ISL)

  C. Backplane Communication Channel (BCC)

  D. Control Station Interface (CSI)

  Correct Answer: A

• Question 145:

  A customer wants to create a file system on a metavolume. What is the smallest metavolume that can be used?

  A. 2 MB

  B. 2 GB

  C. 5 MB

  D. 5 GB

  Correct Answer: A

• Question 146:

  A customer wants advice on how to provision storage for a performance-intensive OLTP application. It has a 3:1 R/W ratio and a maximum 8 KB block size.

  What advice do you give them?

  A. Use 300 GB 15K disks

  B. Use NL-SAS disks

  C. Use 300 GB 10K disks

  D. Use Flash Drives

  Correct Answer: D

• Question 147:

  You are examining NAR files from a VNX Block system and notice that the I/O has no write burst and overall is very low. The low and high watermarks are currently set at 40/60. What settings would you recommend for the low and high watermarks?

  A. 60/80

  B. 80/90

  C. 60/70

  D. 20/40

  Correct Answer: A

• Question 148:

  A customer needs to give a host 300 GB of disk space to improve performance. The VNX to be used has three RAID groups available.

  -

  RAID group 1 is RAID 5 (4+1) with 240 GB free

  -

  RAID group 2 is RAID 5 (4+1) with 220 GB free

  -

  RAID group 3 is RAID 5 (6+1) with 250 GB free

  The utilization of each RAID group is minimal and all use 300 GB SAS drives. Keeping in mind the best practices, how would you create a metaLUN?

  A. Striped with 100 GB on RAID group 1, RAID group 2 and RAID group 3.

  B. Concatenated with 50 GB on RAID group 1 and 250 GB on RAID group 3.

  C. Striped with 150 GB on RAID group 1 and RAID group 2.

  D. Concatenated with 100 GB on RAID group 1, RAID group 2 and RAID group 3.

  Correct Answer: C

• Question 149:

  Refer to the exhibits.

  Exhibit A

  

  Exhibit B

  

  Exhibit C

  

  Exhibit D

  

  Which SAN connectivity solution uses the EMC best practice for port group oversubscription on a Cisco 24-port module?

  A. Exhibit 1

  B. Exhibit 2

  C. Exhibit 3

  D. Exhibit 4

  Correct Answer: A

• Question 150:

  You have collected four Analyzer archives (Day1.NAR, Day2.NAR, Day3.NAR and Day4.NAR) and would like to merge them into one. What is one way you can do this in Unisphere?

  A. 1. Merge Day1.NAR and Day2.NAR into Days1_2.NAR

  2.

  Merge Day3.NAR and Day4.NAR into Days3_4.NAR

  3.

  Merge Days1_2.NAR and Days3_4.NAR into AllDays.NAR

  B. 1. Merge Day1.NAR, Day2.NAR and Day3.NAR into Days1_2_3.NAR

  2. Merge Days1_2_3.NAR with Day4.NAR into AllDays.NAR

  C. Merge all four archives into AllDays.NAR at the same time.

  D. You cannot merge Analyzer archives.

  Correct Answer: A