1108630
Descripción
Test por Rigoberto Franco, actualizado hace más de 1 año
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Creado por Rigoberto Franco
hace más de 10 años
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Pregunta 1
Pregunta
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?
Respuesta
-
LRU
-
HWM
-
LWM
-
MRU
Pregunta 2
Pregunta
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?
Respuesta
-
LRU
-
HWM
-
LWM
-
MRU
Pregunta 3
Pregunta
What does the area ID of the FC address identify?
Respuesta
-
Group of ports within a switch
-
An individual port within a fabric
-
Location of the name server within the fabric
-
Unique number provided to each switch in the fabric
Pregunta 4
Pregunta
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?
Respuesta
-
Source devices must be healthy
-
Save location size must be larger than the size of all source devices
-
Save location size must be equal to the size of all source devices
-
All changes to the source and replica must be discarded before the restore starts
Pregunta 5
Pregunta
Which host component eliminates the need to deploy separate adapters for FC and Ethernet communications?
Respuesta
-
Converged network adapter
-
TCP Offload Engine NIC
-
FCIP bridging adapter
-
iSCSI host bus adapter
Pregunta 6
Pregunta
What is a function of unified management software in cloud computing?
Respuesta
-
Defining cloud service attributes
-
Consolidating infrastructure resources scattered across one or more data centers
-
Metering based on usage of resources by the consumer
-
Providing an interface to consumers to request cloud services
Pregunta 7
Pregunta
Which host component eliminates the need to deploy separate adapters for FC and Ethernet communications?
Respuesta
-
Converged network adapter
-
TCP Offload Engine NIC
-
FCIP bridging adapter
-
iSCSI host bus adapter
Pregunta 8
Pregunta
Which iSCSI name requires an organization to own a registered domain name?
Respuesta
-
IQN
-
EUI
-
WWNN
-
WWPN
Pregunta 9
Pregunta
Which data center requirement refers to applying mechanisms that ensure data is stored and retrieved as it was received?
Respuesta
-
Integrity
-
Availability
-
Security
-
Performance
Pregunta 10
Pregunta
What describes a landing zone in a disk drive?
Respuesta
-
Area on which the read/write head rests
-
Area where the read/write head lands to access data
-
Area where the data is buffered before writing to platters
-
Area where sector-specific information is stored on the disk
Pregunta 11
Pregunta
What is a characteristic of unified storage?
Respuesta
-
Supports multiple protocols for data access and managed through a single management interface
-
Supports a common protocol for data access and managed through a unified management interface
-
Provides compute, storage, and network virtualization products in one solution
-
Stores all data in the form of objects and managed through a unified management interface
Pregunta 12
Pregunta
What defines the time taken to position the read/write head across the platter with a radial movement in a disk drive?
Respuesta
-
eek time
-
Rotational latency
-
Data transfer time
-
Service time
Pregunta 13
Pregunta
What is a benefit of cloud computing over traditional computing?
Respuesta
-
Reduces the time to provision and deploy new applications
-
Eliminates consumer’s IT operational expenditure
-
Enables the use of proprietary APIs to access IT resources
-
Lowers migration cost and prevents vendor lock-in
Pregunta 14
Pregunta
Which statement describes a denial of service attack?
Respuesta
-
Prevents authorized users from accessing the resources and services
-
Prohibits attempts to repair the resources and services after an attack
-
Attempts to provide false information by impersonating someone’s identity
-
Prevents unauthorized users to access the resources and services
Pregunta 15
Pregunta
What is a key benefit of virtualization?
Respuesta
-
Improved resource utilization
-
Improved performance
-
Enhanced interoperability
-
Unlimited resource scaling
Pregunta 16
Pregunta
What is an accurate statement about the Data Center Bridging Exchange protocol?
Respuesta
-
Enables Converged Enhanced Ethernet (CEE) devices to convey and configure their features with other CEE devices
-
Creates virtual FCoE links over an existing Ethernet network to transport FC frames over virtual links independently
-
Enables an FCoE switch to send signals to other FCoE switches that need to stop or slow down their transmissions
-
Enables an FCoE switch to transport both TCP/IP and FC frames over a single virtual FCoE link
Pregunta 17
Pregunta
What is a key security consideration when a NAS device enables sharing of the same data among UNIX and Microsoft Windows users?
Respuesta
-
NAS device must map UNIX permissions to Windows and vice versa
-
NAS defines and maintains ownership to the objects
-
NIS server must separately maintain SIDs for UNIX and Windows environments
-
Object permissions are not defined in advance and assigned dynamically
Pregunta 18
Pregunta
Which cloud computing characteristic enables consumers to grow and shrink the demand for resources dynamically?
Respuesta
-
Rapid elasticity
-
Resource pooling
-
Measured service
-
On-demand self-service
Pregunta 19
Pregunta
Which operation is performed while creating a VM snapshot?
Respuesta
-
Create a delta file to record changes to the virtual disk since the session is activated
-
Capture the configuration data of a VM to create an identical copy of the VM
-
Create a journal volume to update changes to the snapshot
-
Create a “Gold” copy of the snapshot before copying changes to the virtual disk
Pregunta 20
Pregunta
Which cloud computing capability enables monitoring and reporting resource usage?
Respuesta
-
Metering
-
Pooling
-
Self-service requesting
-
Publishing
Pregunta 21
Pregunta
In the context of protecting the FC SAN infrastructure, what is an example of infrastructure integrity?
Respuesta
-
Preventing node login to the fabric without proper authorization
-
Implementing iSNS discovery domains
-
Implementing an FSPF algorithm to create a virtual SAN
-
Not permitting physical segmentation of nodes
Pregunta 22
Pregunta
What is true about parity-based RAID?
Respuesta
-
Parity is updated each time a write is performed
-
Parity is read each time a read is performed
-
Parity is updated only when writes fill a stripe
-
Parity is updated each time when both reads and writes are performed
Pregunta 23
Pregunta
What is an accurate statement about a gateway NAS solution?
Respuesta
-
NAS head and storage are managed independently
-
Consolidates file-level and block-level access on a single storage platform
-
Provides integrated management for both NAS head and storage
-
Creates a single file system that runs on all NAS heads
Pregunta 24
Pregunta
What is prevented using RAID technology?
Respuesta
-
Data loss
-
Host Bus Adapter failures
-
Security breach
-
Switch failure
Pregunta 25
Pregunta
Which process minimizes the exposure to a loss of uncommitted cached data when there is a power failure?
Respuesta
-
Cache vaulting
-
Cache mirroring
-
Low watermarking
-
Prefetching
Pregunta 26
Pregunta
What are the three elements of the risk triad from an information security perspective?
Respuesta
-
Assets, threats, and vulnerabilities
-
Actions, threats, and vulnerabilities
-
Assets, threats, and countermeasures
-
Assets, countermeasures, and vulnerabilities
Pregunta 27
Pregunta
Which cloud computing characteristic enables consumers to request resources using a service catalog through a web-based user interface?
Respuesta
-
On-demand self-service
-
Broad network access
-
Metered services
-
Catalog management
Pregunta 28
Pregunta
What is a purpose for distributing Switch Registered State Change Notifications (SW-RSCNs) in a fabric?
Respuesta
-
Updates the name server on all switches in the fabric
-
Stops or slows down transmissions from other switches in the fabric
-
Distributes configuration values and congestion notifications across the fabric
-
Exchanges requests for change notifications among distributed management servers
Pregunta 29
Pregunta
In the Fibre Channel protocol, what are functions of the FC-1 layer?
Respuesta
-
Encoding and decoding
-
Routing and flow control
-
Interface mapping and flow control
-
Transmission of raw bits and encoding
Pregunta 30
Pregunta
What is a security implementation in NAS environments?
Respuesta
-
Kerberos
-
Port binding
-
S_ID Lockdown
-
FC-SP
Pregunta 31
Pregunta
In an FC SAN environment, what is a benefit of zoning?
Respuesta
-
Restricts RSCN traffic
-
Isolates fabric services
-
Enables online volume expansion
-
Provides non-disruptive data migration
Pregunta 32
Pregunta
What is the RAID 5 write penalty for random, small write I/Os?
Respuesta
-
1
-
2
-
4
-
6
Pregunta 33
Pregunta
Which EMC block-level storage virtualization product enables hosts from two different data centers to access a single copy of data?
Respuesta
-
VMAX
-
VPLEX
-
VNX
-
Vblock
Pregunta 34
Pregunta
Which EMC product enables VNX array-based remote replication from a primary volume to a secondary volume residing on a different VNX storage system?
Respuesta
-
SnapView
-
RepliStor
-
SRDF
-
MirrorView
Pregunta 35
Pregunta
A customer has a requirement to perform a backup each night. However, the customer has a limited amount of time for backups to run on week nights, Monday through Friday evenings.
Which backup granularity type is recommended to meet the backup window for those nights?
Respuesta
-
Incremental
-
Cumulative
-
Full
-
Differential
Pregunta 36
Pregunta
What is a characteristic of a scale-out NAS?
Respuesta
-
Up to four file systems can be created across the cluster
-
File system grows dynamically as nodes are added in the cluster
-
Distinct file systems are created on each node in the cluster
-
Different file systems can be mixed on each node in a single cluster
Pregunta 37
Pregunta
In a Microsoft Windows file sharing environment, what is a function of system access control lists (SACL)?
Respuesta
-
Determines object access information that needs to be audited
-
Provides information on system access troubleshooting
-
Uniquely identifies objects, users, and user groups
-
Provides path name to access both inbound and outbound traffic
Pregunta 38
Pregunta
What is an advantage of synchronous remote replication compared to other remote replication methods?
Respuesta
-
Near zero RTO
-
Near zero RPO
-
No distance limitation
-
Faster response time
Pregunta 39
Pregunta
What is an advantage of sub-LUN tiering?
Respuesta
-
Improved performance
-
Enhanced reliability and availability
-
Dynamic expansion of storage capacity
-
Faster provisioning of thin LUNs
Pregunta 40
Pregunta
Which fabric service is responsible for managing and distributing Registered State Change Notifications (RSCNs) to attached node ports?
Respuesta
-
Name server
-
Fabric controller
-
Fabric login server
-
Management server
Pregunta 41
Pregunta
Which SAN security mechanism will prevent a switch port from being enabled even after a switch reboot?
Respuesta
-
Persistent Port Disable
-
Port Binding
-
Port Lockdown
-
Persistent Switch Disable
Pregunta 42
Pregunta
What does a block map contain in a file system snapshot?
Respuesta
-
Original data when a write is issued to the target for the first time
-
Blocks that have changed since the creation of the snapshot
-
Address from which data is to be read when accessing the snapshot
-
Blocks that have been modified in either the source or the target
Pregunta 43
Pregunta
What describes a full mesh topology?
Respuesta
-
All switches are directly connected to each other
-
Consists of core and edge switch tiers
-
Requires four switches
-
Requires two ISL hops for host to storage traffic
Pregunta 44
Pregunta
What is a characteristic of pointer-based virtual replication?
Respuesta
-
Replica device is at least as large as the source device
-
Replica is immediately available after activation of a replication session
-
Replica is available only after detachment from the source
-
Source does not need to be healthy for the restore
Pregunta 45
Pregunta
When using the image-based backup approach to backup a virtual machine, where does the backup client run?
Respuesta
-
Proxy server
-
Hypervisor
-
Virtual machine
-
Backup device
Pregunta 46
Pregunta
Which NAS implementation consolidates file-based and block-based access on a single storage platform?
Respuesta
-
Unified
-
Scale-out
-
Gateway
-
Integrated
Pregunta 47
Pregunta
Which data deduplication method increases the chance of identifying duplicate data even when there is only a minor difference between two documents?
Respuesta
-
Variable-length segment
-
Single-instance
-
File level
-
Fixed-block
Pregunta 48
Pregunta
Which operation is performed by an FCoE switch when it receives a frame with an FCoE Ethertype?
Respuesta
-
Switch recognizes that the frame contains an FC payload and forwards it to the FC Forwarder
-
Switch recognizes the frame as Ethernet and forwards it to the Ethernet bridge
-
Switch recognizes the frame as FCoE and forwards it to the Ethernet bridge
-
Switch recognizes that the frame contains an Ethernet payload and forwards it to the FC Forwarder
Pregunta 49
Pregunta
What is a key advantage of data striping across multiple disks as compared to a single disk?
Respuesta
-
Performance
-
Space utilization
-
Protection
-
Capacity
Pregunta 50
Pregunta
Which EMC product is a disk-based backup and recovery solution and provides source-based data deduplication?
Respuesta
-
Avamar
-
Data Domain
-
NetWorker
-
SourceOne
Pregunta 51
Pregunta
When a service is described as “three 9s available”, what is the approximate amount of downtime allowed per week?
Respuesta
-
10 seconds
-
10 minutes
-
10 Day
-
10 Hrs
Pregunta 52
Pregunta
What is a characteristic of an FC-SW implementation?
Respuesta
-
Provides a dedicated path between nodes
-
Nodes arbitrate to gain control of the data path to transfer data
-
Only one node can perform an I/O operation at a time
-
Supports up to 126 nodes
Pregunta 53
Pregunta
Which functionality is offered by user access management software?
Respuesta
-
Enables a user to create VMs and allocate them to CPU, memory, and storage capacity
-
Provides a user interface to browse the service catalog and request cloud services
-
Provides a user interface to view a consolidated view of existing physical and virtual infrastructures across data centers
-
Allows a user to monitor performance, capacity, and availability of physical and virtual resources centrally
Pregunta 54
Pregunta
What are the key components of an intelligent storage system?
Respuesta
-
Front-end, cache, back-end, and physical disks
-
Host, connectivity, back-end, and storage array
-
Switch, ports, back-end, and physical disks
-
Host, LUNs, cache, and physical disks
Pregunta 55
Pregunta
A customer requires additional storage capacity. The storage expansion must be fast and performance is not a constraint. What is the most appropriate LUN expansion method?
Respuesta
-
Concatenated metaLUN
-
Striped metaLUN
-
Base LUN
-
Component LUN
Pregunta 56
Pregunta
Which iSCSI discovery mechanism requires manual configuration of the initiator with the target’s network portal?
Respuesta
-
SendTargets discovery
-
iSCSI service location discovery
-
Internet Storage Name Service
-
iSCSI domain name discovery
Pregunta 57
Pregunta
What is a characteristic of asynchronous remote replication?
Respuesta
-
Writes are committed to the target before being committed to the source
-
Only the last update is transmitted if there are multiple writes to the same location in the buffer
-
Reads are always serviced from the target replica
-
Distance between the two sites is restricted to less than 200 km
Pregunta 58
Pregunta
What is a characteristic of Big Data?
Respuesta
-
Structured and unstructured data generated by multiple sources
-
Structured data generated by a single source
-
Only unstructured data generated by multiple sources
-
Structured and unstructured data generated by a single source
Pregunta 59
Pregunta
A stripe depth of 64 KB has been assigned to a five-disk RAID 0 set. What is the stripe size?
Respuesta
-
64 KB
-
128 KB
-
256 KB
-
320 KB
Pregunta 60
Pregunta
A user tries to update the content of a file stored on a CAS system. What is the result of this operation?
Respuesta
-
CAS generates a new address for the altered content and stores it as a new object
-
CAS uses the same content address for the altered content and the original content
-
CAS overwrites the original content and generates a new content address
-
CAS overwrites the original content but the content address is preserved
Pregunta 61
Pregunta
Which EMC product provides target-based deduplication?
Respuesta
-
Data Domain
-
Avamar
-
NetWorker
-
RecoverPoint
Pregunta 62
Pregunta
What are the two mechanisms that can be employed to address threats of user identity spoofing?
Respuesta
-
Access Control Lists (ACLs) and access control to storage objects
-
User authentication and user authorization
-
Access control to storage objects and auditing
-
User authentication and Information Rights Management (IRM)
Pregunta 63
Pregunta
What is the function of enhanced transmission selection in an FCoE environment?
Respuesta
-
Provides available bandwidth to other classes of traffic when a particular class of traffic does not use its allocated bandwidth
-
Provides the capability to independently pause transmission of FCoE frames over each virtual link
-
Enables an FCoE switch to send a signal to other FCoE switches that need to stop or slow down their transmissions
-
Allows an FCoE switch to distribute configuration parameters to the converged network adapters
Pregunta 64
Pregunta
Which benefit is provided by EMC PowerPath?
Respuesta
-
Dynamic load balancing
-
Deduplication of network traffic
-
Multiplexing host traffic
-
Segmentation of fabric to create VSANs
Pregunta 65
Pregunta
In a CAS environment, what is used to generate a content address?
Respuesta
-
Binaries of the data
-
Combination of data and metadata of the object
-
Location of the object
-
Object metadata
Pregunta 66
Pregunta
Which iSCSI naming feature uses a 16-character hexadecimal string?
Respuesta
-
EUI
-
IQN
-
iSNS
-
ARP
Pregunta 67
Pregunta
What describes a repudiation attack?
Respuesta
-
An attempt to compromise accountability goals of the security
-
Stealing a private key to decrypt the data-in-transit
-
Unauthorized access to information to compromise confidentiality
-
A series of repetitive attacks to the physical information infrastructure
Pregunta 68
Pregunta
A department within an organization requires 200 GB of storage for their business application. The production LUN is RAID 1+0 protected and has a local and remote replica. The local replica is on a RAID 1 LUN and the remote replica is on a five-disk RAID 5 LUN.
If the cost per GB of storage is $2.00, what is the chargeback cost to the department for application storage?
Respuesta
-
$1050
-
$1500
-
$2100
-
$2900
Pregunta 69
Pregunta
A department within an organization requires 200 GB of storage for their business application. The production LUN is RAID 1+0 protected and has a local and remote replica. The local replica is on a RAID 1 LUN and the remote replica is on a five-disk RAID 5 LUN.
If the cost per GB of storage is $2.00, what is the chargeback cost to the department for application storage?
Respuesta
-
$1050
-
$1500
-
$2100
-
$2900
Pregunta 70
Pregunta
What is a characteristic of an FC-AL implementation?
Respuesta
-
Reserves one address for connecting an FC-SW port
-
Supports connectivity up to 15 million nodes
-
Devices can be added and removed dynamically without any impact
-
Requires at least one connectivity device
Pregunta 71
Pregunta
Which iSCSI host connectivity option is recommended in a CPU-intensive application environment?
Respuesta
-
NIC with software-based iSCSI initiator
-
TCP offload engine
-
iSCSI HBA
-
Converged Network Adapter
Pregunta 72
Pregunta
What is a characteristic of an enterprise flash drive?
Respuesta
-
Uses semiconductor-based solid state media
-
Performs data search and retrieval sequentially
-
Performs rotational speed at more than 30000 rpm
-
Writes once and reads many
Pregunta 73
Pregunta
What defines the time taken to position the sector on the platter under the read/write head?
Respuesta
-
Seek time
-
Rotational delay
-
Response time
-
Data transfer rate
Pregunta 74
Pregunta
What is true about cache dirty page?
Respuesta
-
Data that has changed but is not yet written to disk
-
Data read from disk but not accessed by the host
-
Data that has changed and has been written to disk
-
Data requested by the host but not yet fetched
Pregunta 75
Pregunta
As your organization’s SAN environment grows, you realize there is a greater need to manage SAN security. Which mechanism is required to prevent unauthorized activity on the FC fabric for management operations?
Respuesta
-
Role-based access control
-
Access control lists
-
VSAN
-
Zoning
Pregunta 76
Pregunta
Which operation is performed by a scale-out NAS when it receives a large write I/O from its clients?
Respuesta
-
I/O is striped across multiple nodes for processing
-
I/O is sent to the high performance node in the cluster for processing
-
A new node is dynamically added to the cluster to process the I/O
-
I/O is sent to the high storage capacity node in the cluster for processing
Pregunta 77
Pregunta
When developing a disaster recovery plan, what is the result of choosing a particular recovery time objective for a system?
Respuesta
-
Determines the type and location of the backup media
-
Determines how often to take a backup of the system
-
Determines how long to retain backup copies
-
Determines how many transaction logs should be backed up
Pregunta 78
Pregunta
Which operation writes data in cache, and immediately to disk, before sending an acknowledgement to the host?
Respuesta
-
Write-through cache
-
Write-back cache
-
Write aside cache
-
Write cache vaulting
Pregunta 79
Pregunta
What is a benefit of WWN zoning over port zoning?
Respuesta
-
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
-
A server, after replacement of its HBAs, maintains connectivity to its zone partners without the need to modify the zoning configuration.
-
A server, after replacement of its HBAs, does not require performing a fabric login to maintain connectivity to its zone partners.
-
A server, after being moved to another fabric, maintains connectivity to its zone partners without the need to modify the zoning configuration.
Pregunta 80
Pregunta
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
Respuesta
-
$10,417
-
$10,521
-
$11,105
-
$12,024
Pregunta 81
Pregunta
In Kerberos authentication, what is a role of the Active Directory?
Respuesta
-
Verifies the user’s login information
-
Implements the Authentication service and Ticket Granting service
-
Verifies the session ID when the client-server session is established
-
Maintains the access control list in a keytab file
Pregunta 82
Pregunta
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?
Respuesta
-
Virtual LAN
-
Virtual SAN
-
Fabric binding
-
Port binding
Pregunta 83
Pregunta
Which data center characteristic refers to the capability to grow resources without impacting business operations?
Respuesta
-
Scalability
-
Security
-
Availability
-
Performance
Pregunta 84
Pregunta
What is an advantage of reporting on storage arrays?
Respuesta
-
Planning for capacity
-
Monitoring the number of arrays
-
Monitoring the number of disks in a RAID group
-
Planning for storage groups
Pregunta 85
Pregunta
A customer wants to connect iSCSI-enabled hosts to an existing Fibre Channel (FC) storage array. Which networking device enables the connectivity between the host and the storage array?
Respuesta
-
iSCSI gateway
-
FCIP bridge
-
FC gateway
-
IP router
Pregunta 86
Pregunta
What is a benefit of virtual storage provisioning over traditional provisioning?
Respuesta
-
Enables more efficient allocation of storage to hosts
-
Can be used for applications that require predictable performance
-
Provides full control for precise data placement
-
Does not enable oversubscription
Pregunta 87
Pregunta
Can be used for applications that require predictable performance
Respuesta
-
Cloud infrastructure package
-
Block-based storage device
-
SMI specification
-
Virtual tape library
Pregunta 88
Pregunta
Which report provides information about the allocation and utilization of storage infrastructure components by various departments or user groups?
Respuesta
-
Capacity Planning
-
Chargeback
-
Configuration and Asset Management
-
Service Management
Pregunta 89
Pregunta
Which component of an archiving solution is responsible for scanning data that can be archived based on a policy?
Respuesta
-
Archiving agent
-
Archiving server
-
Archiving policy server
-
Archiving storage device
Pregunta 90
Pregunta
What describes a hybrid cloud?
Respuesta
-
Combination of two distinct cloud infrastructures (on-premise and externally-hosted) that are managed together
-
Composed of distinct clouds that are bound together by standardized or proprietary technology
-
Composed of two or more distinct data centers that enable data and application portability
-
Combination of a private cloud and a public cloud that are owned, managed, and operated by a single organization
Pregunta 91
Pregunta
What is a requirement for a native iSCSI implementation?
Respuesta
-
Host with an iSCSI HBA and an array with an iSCSI port
-
Host with a NIC and an array with an FCoE port
-
Host with iSCSI initiator software and an array with an FCIP port
-
Host with an iSCSI HBA and an array with an FC port
Pregunta 92
Pregunta
In addition to applications and databases, what are the other core elements of a data center infrastructure?
Respuesta
-
JBOD, networks, and storage arrays
-
Servers/operating systems, DAS, and NAS
-
Servers/operating systems, networks, and storage arrays
-
Servers/operating systems, SAN, and JBOD
Pregunta 93
Pregunta
Why does a restore operation need to communicate with the backup server?
Respuesta
-
Locate the data to be restored using the backup catalog
-
Determine the RTO of the backup save set
-
Run the restore automatically according to a schedule
-
Determine the RPO of the backup save set
Pregunta 94
Pregunta
Which data protection technology provides the highest degree of protection against logical corruption and a near-zero RPO?
Respuesta
-
CDP
-
Mirroring
-
Backup-to-disk
-
Snapshots with CoFW
Pregunta 95
Pregunta
Which remote replication solution has the highest bandwidth requirements?
Respuesta
-
Array-based disk buffered
-
Array-based synchronous
-
Host-based asynchronous LVM mirroring
-
Log shipping over IP networks
Pregunta 96
Pregunta
In a Fibre Channel (FC) SAN, which protocol implementation is used?
Respuesta
-
SCSI over FC
-
SCSI over FCoE
-
FC over iSCSI
-
FC over SCSI
Pregunta 97
Pregunta
Which NAS backup environment transfers data to be backed up over a private backup network?
Respuesta
-
NDMP three-way
-
NDMP two-way
-
Server-based
-
Serverless
Pregunta 98
Pregunta
Which three subject areas, taken together, define storage security?
Respuesta
-
Information, networking, and storage
-
Access control, storage, and encryption
-
Access control, information, and networking
-
Application, management, and backup
Pregunta 99
Pregunta
If a disk drive’s rotational speed is 10000 revolutions per minute, what is its average rotational latency?
Respuesta
-
0.003 milliseconds
-
0.05 milliseconds
-
3 milliseconds
-
5 milliseconds
Pregunta 100
Pregunta
In the context of information security, which attribute other than individual identity and group membership can be used to restrict unauthorized access?
Respuesta
-
Role
-
Cryptography
-
World Wide Name
-
Host network address
Pregunta 101
Pregunta
What is a characteristic of an active/passive storage array configuration?
Respuesta
-
Host can perform I/Os to its LUNs through any of the available controllers
-
Read and write I/Os are performed only through the controller that manages the LUN
-
Read and write I/Os are performed only through active cache
-
Passive array is used for backup; active array is used for production data
Pregunta 102
Pregunta
An eight-disk RAID 6 set has a stripe size of 192 KB. What is the stripe depth?
Respuesta
-
24 KB
-
32 KB
-
48 KB
-
64 KB
Pregunta 103
Pregunta
What is a key benefit of RAID 5 compared to RAID 1+0 for small, random I/Os?
Respuesta
-
Improved storage space utilization
-
Improved write performance
-
Higher availability
-
Faster rebuild times after failure
Pregunta 104
Pregunta
What is a characteristic of asynchronous remote replication?
Respuesta
-
A near-zero RPO disaster recovery solution
-
Write must be committed at the target before being acknowledged as complete
-
Deployed only for distances within 200 km between two sites
-
Replica will be behind the source by at least the size of the buffer
Pregunta 105
Pregunta
What is a characteristic of triangle/multitarget replication?
Respuesta
-
Failover can occur to either of the two remote sites
-
Distance between all sites must be less than 125 km
-
Bunker site must be in sync with the remote site at all times
-
Only the production site is available during normal operations
Pregunta 106
Pregunta
What is a characteristic of cloud-optimized storage?
Respuesta
-
Single access mechanism
-
Secure multitenancy
Pregunta 107
Pregunta
What is the name of the drive sub-assembly which contains the platters and read/write heads?
Respuesta
-
ATA
-
SATA
-
HDA
-
IDE
Pregunta 108
Pregunta
Which two mechanisms address threats of elevating user privileges in the application access domain?
Respuesta
-
Access control to storage objects and Access Control Lists (ACLs)
-
Authentication and authorization
-
Access control to storage objects and auditing
-
User authentication and Information Rights Management (IRM)
Pregunta 109
Pregunta
A customer has an existing SAN environment. The customer wants to add NAS to share the storage space. Which solution is most appropriate?
Respuesta
-
Scale-out NAS
-
Gateway NAS
-
FCoE SAN
-
IP SAN
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