EMC E10-001 Online Practice Questions and Exam Preparation

EMC E10-001 Online Questions & Answers

• Question 231:

  Which data center characteristic refers to the capability to grow resources without impacting business operations?

  A. Scalability
  B. Security
  C. Availability
  D. Performance
  A. Scalability

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  Key Characteristics of a Data Center

  -Availability: A data center should ensure the availability of information when required. Unavailability of information could cost millions of dollars per hour to businesses, such as financial services, telecommunications, and e-commerce.

  -Security: Data centers must establish policies, procedures, and core element integration to prevent unauthorized access to information.

  -Scalability: Business growth often requires deploying more servers, new applications, and additional databases. Data center resources should scale based on requirements, without interrupting business operations.

  -Performance: All the elements of the data center should provide optimal performance based on the required service levels.

  -Data integrity: Data integrity refers to mechanisms, such as error correction codes or parity bits, which ensure that data is stored and retrieved exactly as it was received.

  -Capacity: Data center operations require adequate resources to store and process large amounts of data, efficiently. When capacity requirements increase, the data center must provide additional capacity without interrupting availability or

  with minimal disruption. Capacity may be managed by reallocating the existing resources or by adding new resources.

  -Manageability:

  A data center should provide easy and integrated management of all its elements. Manageability can be achieved through automation and reduction of human (manual) intervention in common tasks. EMC E10-001 Student Resource Guide.

  Module 1: Introduction to Information Storage

• Question 232:

  A customer has an existing SAN environment. The customer wants to add NAS to share the storage space. Which solution is most appropriate?

  A. Gateway NAS
  B. Scale-out NAS
  C. FCoE SAN
  D. IP SAN
  A. Gateway NAS

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  NAS Implementation - Gateway NAS A gateway NAS device consists of one or more NAS heads and uses external and independently managed storage. Similar to unified NAS, the storage is shared with other applications that uses block-level I/O. Management functions in this type of solution are more complex than those in a unified NAS environment because there are separate administrative tasks for the NAS head and the storage. A gateway solution can use the FC infrastructure, such as switches and directors for accessing SAN-attached storage arrays or direct-attached storage arrays. The gateway NAS is more scalable compared to unified NAS because NAS heads and storage arrays can be independently scaled up when required. For example, NAS heads can be added to scale up the NAS device performance. When the storage limit is reached, it can scale up, adding capacity on the SAN, independent of NAS heads. Similar to a unified NAS, a gateway NAS also enables high utilization of storage capacity by sharing it with the SAN environment. EMC E10001 Student Resource Guide. Module

  7: Network-Attached Storage (NAS)

• Question 233:

  Which backup architecture component maintains the backup catalog?

  A. Backup server
  B. Storage node
  C. Backup client
  D. Backup device
  A. Backup server

• Question 234:

  Which cloud computing characteristic enables consumers to request resources using a service catalog through a web-based user interface?

  A. On-demand self-service
  B. Broad network access
  C. Metered services
  D. Catalog management
  A. On-demand self-service

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  On-Demand Self-Service A consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with each service provider. A cloud service provider publishes a service catalogue, which contains information about all cloud services available to consumers. The service catalogue includes information about service attributes, prices, and request processes. Consumers view the service catalogue via a web-based user interface and use it to request for a service. Consumers can either leverage the "ready-to- use" services or change a few service parameters to customize the services.

  EMC E10-001 Student Resource Guide. Module 13: Cloud Computing

• Question 235:

  A finance department wants to secure its data while the data traverses over the FC SAN. Currently the SAN is also used by other departments in the organization.

  Which implementation should be recommended to isolate other department traffic from the finance department traffic?

  A. Virtual SAN
  B. Virtual LAN
  C. Fabric binding
  D. Port binding
  A. Virtual SAN

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  Virtual SAN (VSAN)

  Virtual SAN (also called virtual fabric) is a logical fabric on an FC SAN, which enables communication among a group of nodes regardless of their physical location in the fabric. In a VSAN, a group of hosts or storage ports communicate with

  each other using a virtual topology defined on the physical SAN. Multiple VSANs may be created on a single physical SAN. Each VSAN acts as an independent fabric with its own set of fabric services, such as name server, and zoning.

  Fabric-related configurations in one VSAN do not affect the traffic in another.

  VSANs improve SAN security, scalability, availability, and manageability. VSANs provide enhanced security by isolating the sensitive data in a VSAN and by restricting access to the resources located within that VSAN.

  EMC E10-001 Student Resource Guide. Module 5: Fibre Channel Storage Area Network (FC SAN)

• Question 236:

  What is an accurate statement about an FCoE network?

  A. Consolidates both FC SAN traffic and Ethernet traffic onto a common Ethernet infrastructure
  B. Creates virtual FC links over an IP network that is used to transport FC data between FCoE SANs
  C. Enables the coexistence of FC traffic with IP traffic by providing FC-to-IP bridging functionality
  D. Enables the encapsulation of Ethernet traffic into an FC packet and transports them over CEE
  A. Consolidates both FC SAN traffic and Ethernet traffic onto a common Ethernet infrastructure

• Question 237:

  What is an accurate statement about a NAS device?

  A. Contains a specialized operating system dedicated to file serving
  B. Requires an IP-based, high-performance, dedicated storage array
  C. Contains one or more storage controllers in a single NAS head
  D. Contains a FC forwarder that is optimized for file-sharing functions
  A. Contains a specialized operating system dedicated to file serving

• Question 238:

  What is a key requirement that drives an organization to deploy a NAS solution?

  A. Ability to handle large sequential workloads
  B. Disaster recovery among different locations over IP
  C. Data sharing between heterogeneous operating environments
  D. Ability to handle large random workloads
  C. Data sharing between heterogeneous operating environments

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  What is NAS NAS is a dedicated, high-performance file sharing and storage device. NAS enables its clients to share files over an IP network. NAS provides the advantages of server consolidation by eliminating the need for multiple file servers. It also consolidates the storage used by the clients onto a single system, making it easier to manage the storage. NAS uses network and file-sharing protocols to provide access to the file data. These protocols include TCP/IP for data transfer, and Common Internet File System (CIFS) and Network File System (NFS) for network file service. NAS enables both UNIX and Microsoft Windows users to share the same data seamlessly. EMC E10-001 Student Resource Guide. Module 7: Network-Attached Storage (NAS)

• Question 239:

  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 6 configuration?

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

• Question 240:

  What is true about cache dirty page?

  A. Data that has changed but is not yet written to disk
  B. Data read from disk but not accessed by the host
  C. Data that has changed and has been written to disk
  D. Data requested by the host but not yet fetched
  A. Data that has changed but is not yet written to disk

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  Cache Management As cache fills, the storage system must take action to flush dirty pages (data written into the cache but not yet written to the disk) to manage space availability. Flushing is the process that commits data from cache to the disk. EMC E10-001 Student Resource Guide. Module 4: Intelligent Storage System