EMC E20-555 Online Practice Questions and Exam Preparation

EMC E20-555 Online Questions & Answers

• Question 171:

  Your customer has several departments that want separate access to the cluster so they can use their individual authentication methods. Two of the departments will use NFS and two will use SMB to access the cluster. What would you recommend?

  A. Create two separate access zones for the SMB clients, and use the System zone for the NFS clients.
  B. Create separate access zones for both the SMB and NFS clients.
  C. Create two separate access zones for the NFS clients, and use the System zone for the SMB clients.
  D. Have all clients access the System zone, and use RBAC to control authentication.
  A. Create two separate access zones for the SMB clients, and use the System zone for the NFS clients.

• Question 172:

  When working with Isilon file pool policies, which file attribute can be applied as a filter?

  A. Performance
  B. File create date
  C. File type
  D. Permissions
  C. File type

• Question 173:

  A telecommunications company has a substantial amount of data. This data is being created by network elements within their environment.

  The company wants to change the way the network elements Call Detail Records (CDR) are stored and analyzed. The existing infrastructure consolidates all of the CDRs into a table structure, and then ingests them into a large database. Once ingested, a query engine accesses the database and performs analysis on these files. The system is functional; however, since the amount of CDRs generated will increase exponentially over the next year, the company is open to alternatives for storing and analyzing these records.

  In evaluating alternatives, the key requirements are to reduce cost, the amount of storage, and the amount of time to analyze the data. The customer would like to use Hadoop to analyze the CDRs.

  After you have conducted an assessment of the workflow, you have recommended an Isilon Cluster to work within the Hadoop environment.

  Which protocols would be the best fit when using Isilon for this customer's Hadoop workflow?

  A. NDMP and SCP
  B. NFS and HDFS
  C. CIFS and FTP
  D. SyncIQ and HTTP
  B. NFS and HDFS

• Question 174:

  A customer has grown 2 PB in the last year. The cluster performs well most times of the day, but occasionally during the day, the customer notices a decrease in performance. You have been told that `tree-deletes' are taking too long and can only be run on weekends.

  What would you recommend to speed up the `tree-deletes'?

  A. Add an SSD node tier for metadata to account for at least 2% of RAW capacity
  B. Use an A100 node for added CPU performance to help with `tree-deletes.'
  C. Add 20% more nodes to the cluster to help with degraded performance.
  D. Add an SSD tier for metadata, ensuring all nodes have SSDs.
  A. Add an SSD node tier for metadata to account for at least 2% of RAW capacity

• Question 175:

  The security team at a customer site has created a new requirement that in-flight replication traffic must be encrypted end-to-end. The customer is running OneFS 8.2.1 on their cluster. What encryption protocol versions does SyncIQ support?

  A. TLS 1.3 and OpenSSL 1.1.1
  B. IPSec 2.1 and OpenSSL 1.0.2
  C. TLS 1.2 and OpenSSL 1.0.2
  D. x.509 13.37 and OpenSSL 0.9.8
  C. TLS 1.2 and OpenSSL 1.0.2

• Question 176:

  What happens to worker threads running on the same node when there is an excessive number of workers running at the same time?

  A. Workers are paused
  B. Workers are queued
  C. Impact level of workers is decreased
  D. Priority level of workers is decreased
  B. Workers are queued

• Question 177:

  Which OneFS roles should be assigned to an Active Directory group for login privileges equivalent to the `admin' local account?

  A. System Admin and Security Admin
  B. System Admin, BackupAdmin, and StatisticsAdmin
  C. System Admin, AuditAdmin, and BackupAdmin
  D. Security Admin and AuditAdmin
  A. System Admin and Security Admin

• Question 178:

  A customer is able to see some performance metrics in the Isilon OneFS dashboard or by using CLI. Other performance metrics will require InsightIQ. What will require a licensed version of InsightIQ?

  A. Capacity Trending
  B. Cluster Throughput
  C. CPU Usage
  D. Active Client Connections
  B. Cluster Throughput

• Question 179:

  You meet a customer for the first time. They explain that their current environment for NAS does not meet their needs. You want to make sure that Isilon is a good fit for their needs. What would be a good prequalifying question to ask?

  A. What protocols are accessing your NAS?
  B. What application are you using to create directories?
  C. Is your datacenter ISO9001 compliant?
  D. How many users are in your Directory Services?
  A. What protocols are accessing your NAS?

• Question 180:

  A potential customer requires 800TB of usable capacity to store medical images for their network of health clinics. The IT department has limited staff and currently manages four storage arrays from other vendors. During a meeting with the Director of IT, you learn that the company is planning to deploy a scale-out NAS solution from a competitor of EMC.

  Which factors can demonstrate a lower TCO using Isilon?

  A. An IDC study found that Isilon requires 30% less downtime per year compared to other solutions
  B. Isilon linear scalability eliminates over buying and over provisioning
  C. An IDC study found that Isilon requires 95% less downtime per year compared to other solutions
  D. Isilon uses lower speed NL-SAS drives which reduces overall power and cooling requirements
  E. An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors
  F. Isilon linear scalability eliminates over buying and over provisioning
  G. An IDC study found that Isilon requires 95% less downtime hours per year compared to other competitors
  H. Isilon linear scalability closely aligns with additional staff requirements as capacity grows
  C. An IDC study found that Isilon requires 95% less downtime per year compared to other solutions
  F. Isilon linear scalability eliminates over buying and over provisioning