What is a function of the orchestration layer in a data center infrastructure?

What is a function of the orchestration layer in a data center infrastructure?
A. Provides workflows for automated execution of management tasks
B. Aggregates physical infrastructure components into resource pools
C. Measures the consumption of IT resources by various services
D. Decouples an operating environment from the underlying hardware

Answer: A

What is the reason for this situation?

A VxRail deployment has just been completed but the vSAN performance statistics are not available for the cluster or virtual machines.
What is the reason for this situation?
A. Data has not been populated
B. Performance service has not been manually enabled
C. vSAN performance hot-fix has not been applied
D. Monitoring policy has not been created

Answer: D

A disk drive manufacturer has a defect rate of less than 1.5% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team recommend?

A disk drive manufacturer has a defect rate of less than 1.5% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team recommend?
A. The manufacturing process is functioning properly and no further action is required
B. A larger sample size should be taken to determine if the plant is operating correctly
C. A smaller sample size should be taken to determine if the plant is operating correctly
D. There is a flaw in the quality assurance process and the sample should be repeated

Answer: A

Which logs should be collected?

During VxRail initial deployment the build fails. Support requests that logs be downloaded manually.
Which logs should be collected?
A. /var/log/vmware-installer
B. All files and folders under /var/log/vmware
C. /var/log/vmware/marvin/tomcat/logs/marvin.log only
D. /var/log/mystic/web.log

Answer: D
Explanation:
Referencehttps://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjA7rnpv9LWAhUkB8AKHQaxAXkQFggsMAA&url=https%3A%2F%2Fcommunity.emc.com%2Fthread%2F237521&usg=AOvVaw2X3ZW_W6B6mmZpNdm3aaMf

Your customer provided you with 2, 000 unlabeled records and asked you to separate them into three groups. What is the correct analytical method to use?

Your customer provided you with 2, 000 unlabeled records and asked you to separate them into three groups. What is the correct analytical method to use?
A. K-means clustering
B. Linear regression
C. Naive Bayesian classification
D. Logistic regression

Answer: A

What is required in a presentation for project sponsors?

What is required in a presentation for project sponsors?
A. The "Big Picture" takeaways for executive level stakeholders
B. Data warehouse design changes
C. Line by line review of the developed code
D. Detailed statistical basis for the modeling approach used in the project

Answer: A

What improves the performance of multi-threaded large block I/O workloads on a solid state drive?

What improves the performance of multi-threaded large block I/O workloads on a solid state drive?
A. Parallel I/O channels
B. I/O coalescing
C. Native command queuing
D. High capacity RAM cache

Answer: A