EMC E10-001 Online Practice Questions and Exam Preparation

EMC E10-001 Online Questions & Answers

• Question 151:

  What is a purpose for distributing Switch Registered State Change Notifications (SW-RSCNs) in a fabric?

  A. Updates the name server on all switches in the fabric
  B. Stops or slows down transmissions from other switches in the fabric
  C. Distributes configuration values and congestion notifications across the fabric
  D. Exchanges requests for change notifications among distributed management servers
  A. Updates the name server on all switches in the fabric

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  Fabric Services Each switch has a Fabric Controller located at the predefined address FFFFFD. The Fabric Controller provides services to both node ports and other switches. The Fabric Controller is responsible for managing and distributing Registered State Change Notifications (RSCNs) to the node ports registered with the Fabric Controller. If there is a change in the fabric, RSCNs are sent out by a switch to the attached node ports. The Fabric Controller also generates Switch Registered State Change Notifications (SW-RSCNs) to every other domain (switch) in the fabric. These RSCNs keep the name server up-to-date on all switches in the fabric.

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

• Question 152:

  In an FC SAN environment, an administrator wants to ensure that a particular switch port cannot function as an E_Port and cannot be used to create an inter-switch link. Which security mechanism should the administrator use?

  A. Port Lockdown
  B. Port Binding
  C. Persistent Port Disable
  D. Fabric Binding
  A. Port Lockdown

• Question 153:

  What is the process of continuously gathering information on various elements and services in a data center?

  A. Reporting
  B. Alerting
  C. Provisioning
  D. Monitoring
  D. Monitoring

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  Monitoring Storage Infrastructure Monitoring is one of the most important aspects that forms the basis for managing storage infrastructure resources. Monitoring provides the performance and accessibility status of various components. It also enables administrators to perform essential management activities.

  Monitoring also helps to analyze the utilization and consumption of various storage infrastructure resources. This analysis facilitates capacity planning, forecasting, and optimal use of these resources. Storage infrastructure environment parameters such as heating, ventilating and air-conditioning (HVAC) are also monitored.

  The key storage infrastructure components that should be monitored are:

  

  Servers

  

  Network

  

  Storage arrays

  These components could be physical or virtualized. Each of these components should be monitored for accessibility, capacity, performance and security. EMC E10-001 Student Resource Guide. Module 15: Managing the Storage Infrastructure

• Question 154:

  What is a challenge to consumers in adopting a public cloud?

  A. High CAPEX
  B. Delayed resource scaling
  C. Management overhead
  D. Vendor lock-in
  D. Vendor lock-in

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  Cloud Challenges - Consumers' Perspective Business critical data requires protection and continuous monitoring of its access. If the data moves to a cloud model other than an on-premise private cloud, consumers could lose absolute control of their sensitive data. Although most of the cloud service providers offer enhanced data security, consumers might not be willing to transfer control of their businesscritical data to the cloud.

  Cloud service providers might use multiple data centers located in different countries to provide cloud services. They might replicate or move data across these data centers to ensure high availability and load distribution. Consumers may or may not know in which country their data is stored. Some cloud service providers allow consumers to select the location for storing their data. Data privacy concerns and regulatory compliance requirements, such as the EU Data Protection Directive and the U.S. Safe Harbor program, create challenges for the consumers in adopting cloud computing.

  Cloud services can be accessed from anywhere via a network. However, network latency increases when the cloud infrastructure is not close to the access point. A high network latency can either increase the application response time or cause the application to timeout. This can be addressed by implementing stringent Service Level Agreements (SLAs) with the cloud service providers.

  Another challenge is cloud platform services may not support consumer's desired applications. For example, service provider might not be able to support highly specialized or proprietary environments, such as compatible OSs and preferred programming languages, required to develop and run the consumer's application. Also a mismatch between hypervisors could impact migration of virtual machines into or between clouds. Another challenge is vendor lock-in: the difficulty for consumers to change their cloud service provider. A lack of interoperability between the APIs of different cloud service providers could also create complexity and high migration costs when moving from one service provider to another. EMC E10-001 Student Resource Guide. Module 13: Cloud Computing

• Question 155:

  What is an accurate statement about NDMP 3-way backup in a NAS environment?

  A. Backup device can be shared among multiple NAS heads
  B. Each NAS head should have a dedicated backup device
  C. Backup data traverses at least three NAS heads before reaching the backup device
  D. Backup is performed only when three or more NAS heads are present
  A. Backup device can be shared among multiple NAS heads

• Question 156:

  What is the correct sequence of steps for a target to authenticate to an initiator in an IP SAN using oneway Challenge-Handshake Authentication Protocol (CHAP)?

  Select and Place

  

  

• Question 157:

  What is a characteristic of target-based inline deduplication?

  A. Deduplication processing occurs on the client before backup data is sent to the backup device
  B. Backup data is stored on the backup device and then deduplication is performed
  C. Changes must be made in the backup software to implement deduplication
  D. Deduplication processing occurs at the backup device before it is stored on the backup device
  D. Deduplication processing occurs at the backup device before it is stored on the backup device

• Question 158:

  Which represents a common implementation of a storage network with limited scalability?

  A. CSMA/CD
  B. Fibre Channel Arbitrated Loop
  C. Store and Forward
  D. Switched Fabric
  B. Fibre Channel Arbitrated Loop

• Question 159:

  What is a key security consideration when a NAS device enables sharing of the same data among UNIX and Microsoft Windows users?

  A. NAS device must map UNIX permissions to Windows and vice versa
  B. NAS defines and maintains ownership to the objects
  C. NIS server must separately maintain SIDs for UNIX and Windows environments
  D. Object permissions are not defined in advance and assigned dynamically
  A. NAS device must map UNIX permissions to Windows and vice versa

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  Authorization defines user privileges in a network. The authorization techniques for UNIX users and Windows users are quite different. UNIX files use mode bits to define access rights granted to owners, groups, and other users, whereas Windows uses an ACL to allow or deny specific rights to a particular user for a particular file. Although NAS devices support both of these methodologies for UNIX and Windows users, complexities arise when UNIX and Windows users access and share the same data. If the NAS device supports multiple protocols, the integrity of both permission methodologies must be maintained. NAS device vendors provide a method of mapping UNIX permissions to Windows and vice versa, so a multiprotocol environment can be supported.

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

• Question 160:

  What describes a repudiation attack?

  A. An attempt to compromise accountability goals of the security
  B. Stealing a private key to decrypt the data-in-transit
  C. Unauthorized access to information to compromise confidentiality
  D. A series of repetitive attacks to the physical information infrastructure
  A. An attempt to compromise accountability goals of the security