2014年3月25日星期二

E10-001 dernières questions d'examen certification EMC et réponses publiés

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Code d'Examen: E10-001
Nom d'Examen: EMC (Information Storage and Management Exam Version 2)
Questions et réponses: 200 Q&As

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NO.1 What describes a landing zone in a disk drive?
A. Area on which the read/write head rests
B. Area where the read/write head lands to access data
C. Area where the data is buffered before writing to platters
D. Area where sector-specific information is stored on the disk
Answer: A

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NO.2 What is needed to perform a non-disruptive migration of virtual machines (VMs) between hypervisors?
A. Hypervisors must have access to the same storage volume
B. Physical machines running hypervisors must have the same configuration
C. Hypervisors must be running within the same physical machine
D. Both hypervisors must have the same IP address
Answer: A

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NO.3 An organization performs copy on first access (CoFA) replication to create a local replica of application
data. To perform a successful restore, what should be considered?
A. Source devices must be healthy
B. Save location size must be larger than the size of all source devices
C. Save location size must be equal to the size of all source devices
D. All changes to the source and replica must be discarded before the restore starts
Answer: A

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NO.4 What defines the time taken to position the read/write head across the platter with a radial movement
in a disk drive?
A. Seek time
B. Rotational latency
C. Data transfer time
D. Service time
Answer: A

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NO.5 What is a key benefit of virtualization?
A. Improved resource utilization
B. Improved performance
C. Enhanced interoperability
D. Unlimited resource scaling
Answer: A

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NO.6 Which cloud computing capability enables monitoring and reporting resource usage?
A. Metering
B. Pooling
C. Self-service requesting
D. Publishing
Answer: A

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NO.7 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
Answer: A

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NO.8 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
Answer: A

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NO.9 What does the area ID of the FC address identify.?
A. Group of ports within a switch
B. An individual port within a fabric
C. Location of the name server within the fabric
D. Unique number provided to each switch in the fabric
Answer: A

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NO.10 What is a function of unified management software in cloud computing?
A. Defining cloud service attributes
B. Consolidating infrastructure resources scattered across one or more data centers
C. Metering based on usage of resources by the consumer
D. Providing an interface to consumers to request cloud services
Answer: A

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NO.11 Which host component eliminates the need to deploy separate adapters for FC and Ethernet
communications?
A. Converged network adapter
B. TCP Offload Engine NIC
C. FCIP bridging adapter
D. iSCSI host bus adapter
Answer: A

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NO.12 What is a benefit of cloud computing over traditional computing?
A. Reduces the time to provision and deploy new applications
B. Eliminates consumer's IT operational expenditure
C. Enables the use of proprietary APIs to access IT resources
D. Lowers migration cost and prevents vendor lock-in
Answer: A

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NO.13 Which data center requirement refers to applying mechanisms that ensure data is stored and retrieved
as it was received?
A. Integrity
B. Availability
C. Security
D. Performance
Answer: A

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NO.14 Which iSCSI name requires an organization to own a registered domain name?
A. IQN
B. EUI
C. WWNN
D. WWPN
Answer: A

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NO.15 Which operation is performed while creating a VM snapshot?
A. Create a delta file to record changes to the virtual disk since the session is activated
B. Capture the configuration data of a VM to create an identical copy of the VM
C. Create a journal volume to update changes to the snapshot
D. Create a Gold
copy of the snapshot before copying changes to the virtual disk
Answer: A

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NO.16 What is a characteristic of unified storage?
A. Supports multiple protocols for data access and managed through a single management interface
B. Supports a common protocol for data access and managed through a unified management interface
C. Provides compute, storage, and network virtualization products in one solution
D. Stores all data in the form of objects and managed through a unified management interface
Answer: A

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NO.17 Which cache management algorithm is based on the assumption that data will not be requested by the
host when it has not been accessed for a while?
A. LRU
B. HWM
C. LWM
D. MRU
Answer: A

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NO.18 Which statement describes a denial of service attack?
A. Prevents authorized users from accessing the resources and services
B. Prohibits attempts to repair the resources and services after an attack
C. Attempts to provide false information by impersonating someone s identity
D. Prevents unauthorized users to access the resources and services
Answer: A

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NO.19 What is an accurate statement about the Data Center Bridging Exchange protocol?
A. Enables Converged Enhanced Ethernet (CEE) devices to convey and configure their features with
other CEE devices
B. Creates virtual FCoE links over an existing Ethernet network to transport FC frames over virtual links
independently
C. Enables an FCoE switch to send signals to other FCoE switches that need to stop or slow down their
transmissions
D. Enables an FCoE switch to transport both TCP/IP and FC frames over a single virtual FCoE link
Answer: A

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NO.20 Which EMC product provides the capability to recover data up to any point-in-time?
A. RecoverPoint
B. NetWorker
C. Avamar
D. Data Domain
Answer: A

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