EMC EMCSA E20-559 Questions & Answers

• Question 1:

  A UNIX user is accessing a file through an NFS export on an Isilon cluster. The user is successfully

  authenticated through the LDAP server.

  In addition to file permissions, what else must be considered to determine the degree of file access the

  user will receive?

  A. User's access token

  B. Whether the SmartConnect pool is set to `static'

  C. User SID-defined in the ID Mapper database

  D. User's access zone

  Correct Answer: A

• Question 2:

  A storage administrator needs to configure an Isilon cluster to support both UNIX and Microsoft Windows

  file access to the same directories.

  Which options, under the ACLs page, can be selected for this environment?

  A. Balanced or configure permission policies manually

  B. UNIX only or Microsoft Windows only

  C. Balanced or UNIX only

  D. Microsoft Windows only or configure permission policies manually

  Correct Answer: A

• Question 3:

  Based on the command output shown in the exhibit, what does the "+" represent?

  

  A. File has an advanced ACL on it

  B. File has a synthetic ACL on it

  C. File's mode bits take precedence

  D. Root is a super user

  Correct Answer: A

• Question 4:

  When configuring an NFS export on an Isilon cluster, what is the default mapping for the root account?

  A. Root-to-nobody

  B. Root-to-root

  C. Root-to-admin

  D. User-defined during cluster setup

  Correct Answer: A

• Question 5:

  When creating an SMB share on the Isilon cluster, what is the effect of selecting the "Apply Windows Default ACLs"?

  A. An ACL with the equivalent of UNIX 700 mode bit permissions is created for any directory automatically created

  B. File permissions are automatically set to be the same as the share permissions

  C. Share permissions' configuration is no longer required as it too will be set to the default values

  D. Ownership of all files in the directory will be set to the default user's SID

  Correct Answer: A

• Question 6:

  What is the result of mapping POSIX mode bits to a Microsoft Windows ACL on an Isilon cluster?

  A. No ownership information is lost

  B. Process creates a real ACL

  C. Security of the file may be increased

  D. Multiple user ACEs are collapsed into a single ACE

  Correct Answer: A

• Question 7:

  Which job is a data distribution job on an Isilon cluster?

  A. FlexProtect

  B. Collect

  C. MediaScan

  D. TreeDelete

  Correct Answer: A

• Question 8:

  What accurately describes the behavior of an access token on an Isilon cluster?

  A. Updated when the client accesses the cluster

  B. One token is generated for every access zone

  C. Cannot contain both an SID and an UID

  D. Requires the use of external authentication providers

  Correct Answer: A

• Question 9:

  What accurately describes the behavior of On Disk Identity set to native on an Isilon cluster?

  A. A file will be owned by a user's real SID if no real UID exists for that user

  B. All files in shares can only be owned by a SID

  C. All files in exports can only be owned by a UID

  D. User identities must be defined through external authentication providers

  Correct Answer: A

• Question 10:

  What is a benefit of storing Hadoop data on an Isilon cluster versus a traditional Hadoop environment?

  A. In-place analytics

  B. Requires 3X data mirroring

  C. NameNode resides on a single node

  D. Nodes do both computation and storage

  Correct Answer: A