EMC E20-001 Online Practice Questions and Exam Preparation

EMC E20-001 Online Questions & Answers

• Question 181:

  Which sequence of activities describes a read cache hit?

  1.

  Read data is sent to the host

  2.

  Host sends read request to storage system

  3.

  Cache is searched, and data is found

  A. 2, 3, 1
  B. 3, 1, 2
  C. 1, 3, 2
  D. 1, 2, 3
  A. 2, 3, 1

• Question 182:

  If site A is 1000 miles (1600 km) away from site B, which method is NOT suitable for remotely replicating data from A to B?

  A. Extended distance consistent PIT
  B. Log shipping
  C. Synchronous
  D. Asynchronous
  C. Synchronous

• Question 183:

  Which represents a common implementation of a storage network with limited scalability?

  A. Switched Fabric
  B. Fibre Channel Arbitrated Loop
  C. Store and Forward
  D. CSMA/CD
  B. Fibre Channel Arbitrated Loop

• Question 184:

  An application uses ten 9 GB devices. A full volume local replica of the application is required every 6 hours. Each replica will be kept for 24 hours. How many replica devices are required?

  A. 10
  B. 30
  C. 40
  D. 50
  C. 40

• Question 185:

  What does the number of files to be backed up affect in a backup and recovery environment?

  A. Media type
  B. Catalog size
  C. Amount of media
  D. Number of tape libraries
  B. Catalog size

• Question 186:

  What are the three primary attributes of information security?

  A. Authenticity, confidentiality, and integrity
  B. Availability, authenticity, and confidentiality
  C. Availability, confidentiality, and integrity D. Availability, confidentiality, and utility
  C. Availability, confidentiality, and integrity D. Availability, confidentiality, and utility

• Question 187:

  When is data copied from the source to the target using Copy on First Access replica technology?

  A. All writes issued to a location on the source
  B. A write issued for the first time to a location on the source
  C. All reads issued to a location on the source
  D. A read issued for the first time to a location on the source
  B. A write issued for the first time to a location on the source

• Question 188:

  During EMC CLARiiON Mirror View/A remote replication, the communication link between a mirror's primary image and its secondary image fails. What is the state of the secondary image?

  A. Inconsistent
  B. Independent
  C. Synchronizing
  D. Fractured
  D. Fractured

• Question 189:

  How can the exposure to loss of uncommitted cached data be minimized?

  A. Cache bypassing
  B. Write-through
  C. Watermarking
  D. Write-back
  B. Write-through

• Question 190:

  What are the four components of an intelligent storage system?

  A. Back-end, disk cache, front-end, logical disks
  B. Back-end, cache, front-end, physical disks
  C. Back-end, disk cache, front-end, physical disks
  D. Back-end, cache, switch, physical disks
  B. Back-end, cache, front-end, physical disks