EMC E10-001 Online Practice Questions and Exam Preparation

EMC E10-001 Online Questions & Answers

• Question 221:

  Which type of metaLUN provides only additional capacity without improving performance?

  A. Concatenated
  B. Striped
  C. Mirrored
  D. Parity
  A. Concatenated

• Question 222:

  What is a remote replication solution for EMC CLARiiON storage systems?

  A. Mirror View/A
  B. Snap View
  C. SRDF/AR
  D. TimeFinder
  A. Mirror View/A

• Question 223:

  Match the four security goals of an information security framework with their correct description.

  Select and Place

  

  

• Question 224:

  Refer to the exhibit.

  

  Which backup topology does the exhibit represent?

  A. Direct-attached backup
  B. LAN-based backup
  C. Server-less backup
  D. NDMP-based backup
  A. Direct-attached backup

• Question 225:

  What is a benefit of WWN zoning over port zoning?

  A. A server, after being moved to another switch port in the fabric, maintains connectivity to its zone partners without the need to modify the zoning configuration.
  B. A server, after replacement of its HBAs, maintains connectivity to its zone partners without the need to modify the zoning configuration.
  C. A server, after replacement of its HBAs, does not require performing a fabric login to maintain connectivity to its zone partners.
  D. A server, after being moved to another fabric, maintains connectivity to its zone partners without the need to modify the zoning configuration.
  A. A server, after being moved to another switch port in the fabric, maintains connectivity to its zone partners without the need to modify the zoning configuration.

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  Types of Zoning Zoning can be categorized into three types: Port zoning: Uses the physical address of switch ports to define zones. In port zoning, access to node is determined by the physical switch port to which a node is connected. The zone members are the port identifier (switch domain ID and port number) to which HBA and its targets (storage devices) are connected. If a node is moved to another switch port in the fabric, port zoning must be modified to allow the node, in its new port, to participate in its original zone. However, if an HBA or storage device port fails, an administrator just has to replace the failed device without changing the zoning configuration.

  WWN zoning: Uses World Wide Names to define zones. The zone members are the unique WWN addresses of the HBA and its targets (storage devices). A major advantage of WWN zoning is its flexibility. WWN zoning allows nodes to be moved to another switch port in the fabric and maintain connectivity to its zone partners without having to modify the zone configuration. This is possible because the WWN is static to the node port.

  Mixed zoning: Combines the qualities of both WWN zoning and port zoning. Using mixed zoning enables a specific node port to be tied to the WWN of another node. EMC E10-001 Student Resource Guide. Module

  5: Fibre Channel Storage Area Network (FC SAN)

• Question 226:

  Which factor is a measurement of system reliability?

  A. Recovery point objective
  B. Mean time between failures
  C. Mean time to repair
  D. Recovery time objective
  B. Mean time between failures

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  Measuring Information Availability Information availability relies on the availability of both physical and virtual components of a data center. Failure of these components might disrupt information availability. A failure is the termination of a component's ability to perform a required function. The component's ability can be restored by performing an external corrective actions, such as a manual reboot, a repair, or replacement of the failed component (s). Proactive risk analysis, performed as part of the BC planning process, considers the component failure rate and average repair time, which are measured by MTBF and MTTR: Mean Time Between Failure (MTBF): It is the average time available for a system or component to perform its normal operations between failures. It is the measure of system or component reliability and is usually expressed in hours.

  

  Mean Time To Repair (MTTR): It is the average time required to repair a failed component. MTTR includes the total time required to do the following activities: detect the fault, mobilize the maintenance team, diagnose the fault, obtain the spare parts, repair, test, and restore the data. MTTR is calculated as: Total downtime/Number of failures IA can be expressed in terms of system uptime and downtime and measured as the amount or percentage of system uptime: IA = system uptime / (system uptime + system downtime) Where system uptime is the period of time during which the system is in an accessible state; when it is not accessible, it is termed as system downtime. In terms of MTBF and MTTR, IA could also be expressed as: IA = MTBF / (MTBF + MTTR)

• Question 227:

  What are the three elements of the risk triad from an information security perspective?

  A. Assets, threats, and vulnerabilities
  B. Actions, threats, and vulnerabilities
  C. Assets, threats, and countermeasures
  D. Assets, countermeasures, and vulnerabilities
  A. Assets, threats, and vulnerabilities

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

• Question 228:

  Match the Storage type with the correct characteristics

  Select and Place

  

  

• Question 229:

  Which functionality enables creating virtual links on a single physical link and independently pausing a virtual link in an FCoE environment?

  A. Enhanced transmission selection
  B. Data center bridging exchange
  C. Buffer-to-buffer credit
  D. Priority-based flow control
  D. Priority-based flow control

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  Priority Based Flow Control

  

  Traditional FC manages congestion through the use of a link-level, credit-based flow control that guarantees no loss of frames. Typical Ethernet, coupled with TCP/IP, uses a packet drop flow control mechanism. The packet drop flow control is not lossless. This challenge is eliminated by using an IEEE 802.3x Ethernet PAUSE control frame to create a lossless Ethernet. A receiver can send a PAUSE request to a sender when the receiver's buffer is filling up. Upon receiving a PAUSE frame, the sender stops transmitting frames, which guarantees no loss of frames. The downside of using the Ethernet PAUSE frame is that it operates on the entire link, which might be carrying multiple traffic flows.

  PFC provides a link level flow control mechanism. PFC creates eight separate virtual links on a single physical link and allows any of these links to be paused and restarted independently.

  PFC enables the pause mechanism based on user priorities or classes of service. Enabling the pause based on priority allows creating lossless links for traffic, such as FCoE traffic. This PAUSE mechanism is typically implemented for FCoE while regular TCP/IP traffic continues to drop frames. Figure in the slide illustrates how a physical Ethernet link is divided into eight virtual links and allows a PAUSE for a single virtual link without affecting the traffic for the others. EMC E10-001 Student Resource Guide. Module 6: IP SAN and FCoE

• Question 230:

  Which migration technique moves the active state of a virtual machine (VM) without powering off the VM?

  A. Push and pull
  B. VM snapshot
  C. Array-to-array
  D. Hypervisor-to-hypervisor
  D. Hypervisor-to-hypervisor