EMC E10-001 Online Practice Questions and Exam Preparation

EMC E10-001 Online Questions & Answers

• Question 51:

  What is a characteristic of an active/passive storage array configuration?

  A. Read and write I/Os are performed only through the controller that manages the LUN
  B. Host can perform I/Os to its LUNs through any of the available controllers
  C. Read and write I/Os are performed only through active cache
  D. Passive array is used for backup; active array is used for production data
  A. Read and write I/Os are performed only through the controller that manages the LUN

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  Midrange Storage Systems Midrange storage systems are also referred to as active-passive arrays and are best suited for small- and medium-sized enterprise applications. They also provide optimal storage solutions at a lower cost. In an active-passive array, a host can perform I/Os to a LUN only through the controller that owns the LUN. The host can perform reads or writes to the LUN only through the path to controller A because controller A is the owner of that LUN. The path to controller B remains passive and no I/O activity is performed through this path.

  

  Midrange storage systems are typically designed with two controllers, each of which contains host interfaces, cache, RAID controllers, and interface to disk drives.

  Midrange arrays are designed to meet the requirements of small and medium enterprise application; therefore, they host less storage capacity and cache than high-end storage arrays. There are also fewer front-end ports for connection to hosts. However, they ensure high redundancy and high performance for applications with predictable workloads. They also support array-based local and remote replication. EMC E10-001 Student Resource Guide. Module 4: Intelligent Storage System

• Question 52:

  Click on the calculator icon in the upper left corner.

  A department conducts business, Monday through Saturday from 9 A.M. to 5 P.M. each day. The department takes in revenue on an average of $500,000 per week. Employee salaries are approximately $5,000 per week. The department requires the use of a computer system with an RPO of 2 hours and an RTO of 4 hours.

  To determine the business impact of downtime, what is the average cost of downtime per hour of the business?

  A. $10,417
  B. $10,521
  C. $11,105
  D. $12,024
  B. $10,521

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  Impact of Downtime The business impact of downtime is the sum of all losses sustained as a result of a given disruption. An important metric, average cost of downtime per hour, provides a key estimate in determining the appropriate BC solutions. It is calculated as follows: Average cost of downtime per hour = average productivity loss per hour + average revenue loss per hour Where: Productivity loss per hour = (total salaries and benefits of all employees per week) / (average number of working hours per week) Average revenue loss per hour = (total revenue of an organization per week) / (average number of hours per week that an organization is open for business) The average downtime cost per hour may also include estimates of projected revenue loss due to other consequences, such as damaged reputations, and the additional cost of repairing the system.

  Calculation EMC E10-001 Student Resource Guide. Module 9: Introduction to Business Continuity

  

• Question 53:

  An application generates 4200 small random I/Os at peak workloads with a read/write ratio of

  2:1.

  What is the disk load at peak activity for a RAID 5 configuration?

  A. 2,800
  B. 5,600
  C. 8,400
  D. 11,200
  C. 8,400

• Question 54:

  Which EMC product is a disk-based backup and recovery solution and provides source-based data deduplication?

  A. Avamar
  B. Data Domain
  C. NetWorker
  D. SourceOne
  A. Avamar

• Question 55:

  Which remote replication solution requires the least network bandwidth?

  A. Disk buffered
  B. Triangle/multi-target
  C. Asynchronous
  D. Synchronous
  A. Disk buffered

• Question 56:

  An organization recently adopted Platform as a Service that is provided from an externally- hosted private cloud. What is an operational expenditure the organization will incur to access the cloud service?

  A. Payment of subscription fees
  B. Purchase cost of platform software
  C. Cost of deploying the SAN
  D. Procurement cost of cloud servers
  A. Payment of subscription fees

• Question 57:

  Which cloud computing characteristic enables consumers to grow and shrink the demand for resources dynamically?

  A. Rapid elasticity
  B. Resource pooling
  C. Measured service
  D. On-demand self-service
  A. Rapid elasticity

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  Rapid Elasticity Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand. To the consumer, the capabilities available for provisioning often appear to be unlimited and can be appropriated in any quantity at any time. Consumers can leverage rapid elasticity of the cloud when they have a fluctuation in their IT resource requirements. For example, an organization might require doubling the number of web and application servers for a specific duration to accomplish a specific task. For the remaining period, they might want to release idle server resources to cut down the expenses. The cloud enables consumers to grow and shrink the demand for resources dynamically. EMC E10-001 Student Resource Guide. Module 13: Cloud Computing

• Question 58:

  A system has three components and all three components need to be operational for 24 hours; Monday to Friday. During a particular week, failure of component 2 occurred as follows:

  

  Monday = 6 PM to 9 PM

  

  Tuesday = 8 AM to 10 AM

  

  Wednesday = No failure

  

  Thursday = 8 PM to 9 PM

  

  Friday = No failure

  

  Saturday = 5 AM to 8 AM

  

  Sunday = 6 PM to 9 PM

  What is the mean time between failures on component 2?

  A. 30 Hours
  B. 38 Hours
  C. 40 Hours
  D. 42 Hours
  B. 38 Hours

• Question 59:

  An enterprise with a worldwide customer base is planning to adopt a cloud solution for its operations. The enterprise has no budget constraints and requires complete control over applications, customer data, and the infrastructure.

  Which cloud deployment option should be recommended?

  A. On-premise private cloud
  B. Hybrid cloud
  C. Public cloud
  D. Externally-hosted private cloud
  A. On-premise private cloud

• Question 60:

  In the context of information security, which attribute other than individual identity and group membership can be used to restrict unauthorized access?

  A. Role
  B. Cryptography
  C. World Wide Name
  D. Host network address
  A. Role

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  Securing Access In secure storage environments, root or administrator privileges for a specific device are not granted to every user. Instead, role-based access control (RBAC) is deployed to assign necessary privileges to users, enabling them to perform their roles. A role may represent a job function, for example, an administrator. Privileges are associated with the roles and users acquire these privileges based upon their roles. It is also advisable to consider administrative controls, such as "separation of duties," when defining data center procedures.

  EMC E10-001 Student Resource Guide. Module 14: Securing the Storage Infrastructure