6141510
Descripción
Test por CHONG CHEN NENG, actualizado hace más de 1 año
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Creado por CHONG CHEN NENG
hace más de 7 años
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Pregunta 1
Pregunta
What is Software Defined Storage?
Respuesta
-
virtualized storage with a Fibre Channel interface
-
virtualized storage with an Ethernet interface
-
physical storage with a service management interface
-
virtualized storage with a service management interface
Pregunta 2
Pregunta
Which entity is responsible for making cloud services available for cloud consumers?
Respuesta
-
cloud provider
-
cloud auditor
-
cloud storage
-
cloud infrastructure
Pregunta 3
Pregunta
What is a SNIA standard that defines an interface used by applications to create, retrieve, update and delete elements from the cloud?
Respuesta
-
FTP
-
CDMI
-
S3
-
SFTP
Pregunta 4
Pregunta
A customer is considering mixing disk technologies in the same storage array to provide additional capabilities that they require.
In this scenario, what would be a benefit of doing this?
Respuesta
-
to allow for more encrypted data to be stored on the array
-
to improve the performance of the array
-
to perform compression before writing data to the HDDs
-
to perform deduplication before writing data to the HDDs
Pregunta 5
Pregunta
Which two technologies use NAND flash memory (non-volatile) technology to store data? (Choose two.)
Respuesta
-
quad-level cell (QLC)
-
single-level cell (SLC)
-
interim-level cell (ILC)
-
mufti -level cell (MLC)
Pregunta 6
Pregunta
What are two requirements of a server cluster with regards to storage technologies? (Choose two.)
Respuesta
-
a switch fabric
-
a file locking mechanism
-
a back-end storage database
-
shared storage
Pregunta 7
Pregunta
What is the default port that iSCSI traffic uses?
Respuesta
-
443
-
3260
-
80
-
53
Pregunta 8
Pregunta
According to SNIA, what is a data structure signed with a digital signature that is based using a public key and confirms that the key belongs to the subject identified in the structure called?
Respuesta
-
secure key
-
certificate
-
public key
-
private key
Pregunta 9
Pregunta
A physical server is having a native or bare-metal hypervisor installed before being deployed.
In this scenario, which statement is correct?
Respuesta
-
The hypervisor runs as a program on a host operating system and supports only one instance of a virtual server
-
The hypervisor runs directly on the server hardware and supports the creation of multiple concurrent instances of virtual servers
-
The hypervisor runs directly on the server hardware and supports the creation of only one instance of a virtual server.
-
The hypervisor runs as a program on a host operating system and supports multiple concurrent instances of virtual servers.
Pregunta 10
Pregunta
What is an implementation of a secure, multi-tenant cloud environment that is externally available to all users?
Respuesta
-
private
-
public
-
secure
-
hybrid
Pregunta 11
Pregunta
What are two scenarios where using disk replication is a valid risk mitigation strategy? (Choose two.)
Respuesta
-
a primary storage array non-recoverable hardware failure
-
an extended power failure at the primary site
-
information destruction due to a security breach
-
system instability due to a bad OS updatesystem instability due to a bad OS update
Pregunta 12
Pregunta
Which interface is used for 40GbE?
Respuesta
-
Twinax
-
Small Form Factor pluggable (SFP+)
-
multimode fiber (MMF)
-
Quad Small Form Factor pluggable {QSFP+)
Pregunta 13
Pregunta
You have a RAID 5 set with five disks at 400 GB each. Approximately how much usable space would this configuration yield?
Respuesta
-
1 terabyte
-
2 terabytes
-
1.2 terabytes
-
16 terabytes
Pregunta 14
Pregunta
What are the requirements for a boot from SAN? (Choose two.)
Respuesta
-
Zoning of the LUN containing the OS image is required
-
An active path to the LUN is required.
-
The host server and storage should be from the same vendor
-
Only CNAs can be used
Pregunta 15
Pregunta
Which statement describes an N_Port login?
Respuesta
-
a process by which a server HBA port logs in to a fabric
-
a process by which FC initiators establish sessions with targets
-
a process by which users obtain access to a host
-
a process by which two FC-4 layer processes establish communication
Pregunta 16
Pregunta
What are two characteristics of Challenge-Handshake Authentication Protocol (CHAP)? (Choose two.)
Respuesta
-
CHAP uses a hash mechanism so the clear text authentication piece is never sent.CHAP uses a hash mechanism so the clear text authentication piece is never sent.
-
CHAP uses a parity algorithm to jumble the credentials for security.
-
CHAP uses a Point-to-Point Protocol (PPP) method.
-
CHAP is required for iSCSI initiator authentication
Pregunta 17
Pregunta
What is the purpose of a host bus adapter (HBA)?
Respuesta
-
to connect a switch port to front end storage
-
to provide host backups to tape media
-
to connect a host to a switch
-
to use a host CPU to interface with storage controllers
Pregunta 18
Pregunta
Which two security methods will protect iSCSI traffic from unauthorized tampering or spoofing? (Choose two.)
Respuesta
-
internet Protocol Security (IPsec)
-
ACLs
-
encryption at rest
-
Challenge Handshake Authentication Protocol (CHAP)
Pregunta 19
Pregunta
Which level of data access does a SAN device provide compared to NAS?
Respuesta
-
file access
-
block access
-
packet access
-
object access
Pregunta 20
Pregunta
What would be placed in a Fibre Channel zone?
Respuesta
-
Ip address
-
MAC address
-
IQN of an initiator
-
World Wide Port Name (WWPN)
Pregunta 21
Pregunta
You want to replace multiple copies of data, at variable levels of granularity, with references to a shared copy to save storage space and/or bandwidth.
Which data reduction method would satisfy the requirement?
Respuesta
-
deduplication
-
compression
-
thin provisioning
-
conditioning
Pregunta 22
Pregunta
According to SNIA, what is the term that describes a mechanism allocating the physical capacity of a volume or file system as applications write data?
Respuesta
-
thick provisioning
-
thin provisioning
-
hybrid provisioning
-
static provisioning
Pregunta 23
Pregunta
Which type of cloud allows management of backups to local, public, and/or private clouds to meet the varying requirements of cost, availability, latency, and security?
Respuesta
-
public
-
private
-
hybrid
-
secure
Pregunta 24
Pregunta
Which device would communicate to a DAS?
Respuesta
-
NIC
-
switch
-
HBA
-
DB9 serial cable
Pregunta 25
Pregunta
According to SNIA, what are two valid storage tiering types? (Choose two.)
Respuesta
-
storage cache tiering
-
host tiering
-
application tiering
-
cloud tiering
Pregunta 26
Pregunta
What describes the process of moving data between different classes of disks and storage, based on policy?
Respuesta
-
data clustering
-
IOPS monitoring
-
storage tiering
-
LUN migration
Pregunta 27
Pregunta
Your company needs to buy more disks for new servers and are considering SSD and HDD solutions What are two reasons why you would recommend using SSD? (Choose two.)
Respuesta
-
lower cost
-
no moving parts
-
better performance
-
high capacity
Pregunta 28
Pregunta
You want to use a light-weight communication API for cloud access. What would you use in this situation?
Respuesta
-
Representational State Transfer (REST)
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Simple Object Access Protocol (SOAP)
-
Internet Engineering Task Force (IETF)
-
World Wide Web Consortium (W3C)
Pregunta 29
Pregunta
Which backup technique is the slowest in terms of backup time?
Respuesta
-
full backup
-
incremental backup
-
differential backup
-
mirror backup
Pregunta 30
Pregunta
Which two statements about jumbo Ethernet frames are correct? (Choose two.)
Respuesta
-
Jumbo frame is an Ethernet frame with a payload greater than 1500 bytes.
-
Jumbo frames are always a fixed standard length of 9000 bytes.
-
Jumbo frames can increase the latency on a network due to the transmission of larger frames
-
Jumbo frames enable the transmission of iSCSI packets on the IP network.
Pregunta 31
Pregunta
Which hardware component transports FC and IP traffic?
Respuesta
-
RAID array
-
iSCSI
-
NIC
-
CNA
Pregunta 32
Pregunta
You want to improve disk space usage efficiency while maintaining high availability. In this scenario, which solution satisfies this requirement?
Respuesta
-
RAID 0
-
RAID 1
-
RAID 5
-
RAID 10
Pregunta 33
Pregunta
Which device would be an NDMP server1?
Respuesta
-
a NAS device
-
a disk storage device
-
a tape storage device
-
a DAS device
Pregunta 34
Pregunta
Which two technologies are part of the Data Center Bridging (DCB) standard? (Choose two.)
Respuesta
-
Priority-based Flow Control (PFC)
-
Enhanced Transmission Selection (ETS)
-
Fibre Channel over IP (FCIP)
-
Internet key Exchange (IKE)
Pregunta 35
Pregunta
At which point in the communication chain is multi-pathing initiated?
Respuesta
-
the operating system device driver level
-
the switch level
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the storage array level
-
the physical cable interface level
Pregunta 36
Pregunta
Your customer has a Fibre Channel SAN environment and has properly zoned servers for storage with front end controller ports. When an administrator goes to initialize a provisioned volume, it is not seen on the server.
What would cause this problem1?
Respuesta
-
an unplugged cable
-
a multi-path I/O failure
-
a corrupted volume
-
improper LUN masking
Pregunta 37
Pregunta
A company is concerned with high space usage on ils storage devices, especially during certain periods of time when the same or similar information is being sent or received.
Which solution will address this concern?
Respuesta
-
data compression
-
encryption
-
thin provisioning
-
deduplication
Pregunta 38
Pregunta
What should a valid iSCSI qualified name include?
Respuesta
-
the iSCSI string
-
date code, in yyyy-mm format
-
the WWN string
-
initials of company name
Pregunta 39
Pregunta
What are two NAS file access protocols? (Choose two.)
Respuesta
-
SMB
-
iSCSI
-
NFS
-
FCP
Pregunta 40
Pregunta
Which type of server initiates an NDMP backup?
Respuesta
-
directory server
-
NDMP server
-
application server
-
database server
Pregunta 41
Pregunta
Which feature would be used for SAN traffic isolation?
Respuesta
-
zoning
-
multi-pathing
-
volume management
-
failover
Pregunta 42
Pregunta
Which statement is correct regarding LUNs?
Respuesta
-
a method for encapsulating Fibre Channel frames
-
a representation of segmented storage space to be provided to their servers
-
a scenario where log file servers reach maximum disk capacity
-
a method for optimizing LAN traffic
Pregunta 43
Pregunta
You explain to a customer that storage data compression can be used on most data types. However, there are exceptions.
Which file type is an exception?
Respuesta
-
*.txt
-
*.bat
-
*.jpg
-
*.ora
Pregunta 44
Pregunta
Which two statements regarding hybrid drives are correct? (Choose two.)
Respuesta
-
Flash memory stores frequently accessed content.
-
Flash memory is located on the motherboard of the server
-
Flash memory is located on the HDD circuit board.
-
Flash memory is not used with a hybrid drive.
Pregunta 45
Pregunta
At which level would you apply LUN masking?
Respuesta
-
file system level
-
switch level
-
zone alias level
-
controller level
Pregunta 46
Pregunta
You are consulting for a major financial institution and are verifying their current disaster recovery processes. Your client has a Recovery Point Objective (RPO) of zero.
In this scenario what does this mean?
Respuesta
-
The customer has a zero data loss requirement
-
The customer has no data at risk.
-
The customer has a zero tolerance policy.
-
The customer has a zero chance of failure.
Pregunta 47
Pregunta
What is another name for a storage volume?
Respuesta
-
Converged Network Adapter (CNA)
-
logical unit number (LUN)
-
storage port
-
Host Bus Adapter (HBA)
Pregunta 48
Pregunta
Which two connection sequences are supported for direct-attached storage? (Choose two.)
Respuesta
-
Fibre Channel Host HBA -> FC Switch -> FC Target Device on Storage Controller
-
Fibre Channel Host HBA -> FC Target Device on Storage Controller
-
SAS Host HBA -> SAS Target Storage Controller
-
iSCSI Host Software Initiator -> Ethernet Switch -> iSCSI Host Target Initiator
Pregunta 49
Pregunta
When presenting a single volume to multiple hosts, which type of service needs to be running on the hosts?
Respuesta
-
clustering services
-
DNS services
-
directory services
-
DHCP services
Pregunta 50
Pregunta
You are designing a synchronous remote mirror solution.
Which two factors regarding maximum distance must be considered in this scenario? (Choose two)
Respuesta
-
the availability of high-speed communication links
-
the customer's application tolerance for latency
-
the customer's RTO requirement
-
the amount of storage required by the customer's application
Pregunta 51
Pregunta
What do RAID 5 sets use to rebuild data?
Respuesta
-
Flash memory
-
mirroring
-
parity
-
data quiescing
Pregunta 52
Pregunta
What is the function of the Fibre Channel name server?
Respuesta
-
It retrieves all files from a file store by name.
-
It provides service to register Fibre Channel N_Ports.
-
It partitions Logical Unit Numbers (LUNs).
-
It load balances the SAN traffic.
Pregunta 53
Pregunta
Software Defined Storage (SDS) uses which type of technology to function?
Respuesta
-
Application
-
replication
-
virtualization
-
authentication
Pregunta 54
Pregunta
What is the name of the process by which a SAN dynamically extends volumes depending on server and application needs?
Respuesta
-
copy On First Write (COFW)
-
deduplication
-
LUN expansion
-
thin provisioning
Pregunta 55
Pregunta
Which technology uses lossless Ethernet?
Respuesta
-
FC
-
FcoE
-
FCIP
-
iFCP
Pregunta 56
Pregunta
Which software technique reduces the effects of a hardware component failure?
Respuesta
-
volume management
-
multi-pathing
-
LUN masking
-
zoning
Pregunta 57
Pregunta
What are two reasons for using a full backup? (Choose two.)
Respuesta
-
When a host needs to have all of the data available to be restored.
-
When a host restore can be accomplished across multiple jobs and sessions.
-
When a backup requires minimal space consumption.
-
When a backup must be available in one backup image.
Pregunta 58
Pregunta
You want to manage systems and devices on a network with traps that signal the occurrence of an event In this scenario, which protocol would you use?
Respuesta
-
TLS
-
CDMI
-
SMTP
-
SNMP
Pregunta 59
Pregunta
Which two statements are true about archiving? (Choose two.)
Respuesta
-
Archiving is an open source technology based on Cinder and OpenStack.
-
The purpose of archiving is the long term preservation of information.
-
Archiving can be used as a response to meet regulatory requirements.
-
Archiving is performed exclusively to tape.
Pregunta 60
Pregunta
A customer hires you to create an incremental backup scheme. Which solution would you recommend to the customer?
Respuesta
-
Create a backup scheme that will do a full backup and then only backup selected files.
-
Create a backup scheme that will do a full backup and then only backup changed data since the last backup.
-
Create a backup scheme that will do a full backup and then only backup changes since the full backup.
-
Create a backup scheme that will do a full backup and then only backup files selected by the host owner.
Pregunta 61
Pregunta
Which type of device would you typically use for file access storage?
Respuesta
-
SAN
-
NAS
-
DAS
-
HBA
Pregunta 62
Pregunta
What are three iSCSI configuration optimization techniques? (Choose three.)
Respuesta
-
Combine iSCSI data traffic with management IP traffic for maximum efficiency.
-
Enable jumbo frames
-
Isolate iSCSI traffic from other IP frames.
-
Place a firewall between initiators and targets for security
-
Enable flow control on switches.
Pregunta 63
Pregunta
Which storage technology uses optics for connectivity?
Respuesta
-
LTO tape
-
SAS
-
SATA
-
Fibre Channel
-
iSCSI
Pregunta 64
Pregunta
What is the process called that Solid State Drives (SSDs) use to reclaim space taken by previously stored data?
Respuesta
-
garbage collection
-
coalescing
-
write amplification
-
IOPS resizing
Pregunta 65
Pregunta
What is a set of data processing components that are automatically provisioned by providers, accessed over a network, and provides secure multi-tenancy?
Respuesta
-
network infrastructure
-
database infrastructure
-
storage infrastructure
-
cloud infrastructure
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