6141510
Beschreibung
Quiz von CHONG CHEN NENG, aktualisiert more than 1 year ago
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Erstellt von CHONG CHEN NENG
vor fast 8 Jahre
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Frage 1
Frage
What is Software Defined Storage?
Antworten
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virtualized storage with a Fibre Channel interface
-
virtualized storage with an Ethernet interface
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physical storage with a service management interface
-
virtualized storage with a service management interface
Frage 2
Frage
Which entity is responsible for making cloud services available for cloud consumers?
Antworten
-
cloud provider
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cloud auditor
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cloud storage
-
cloud infrastructure
Frage 3
Frage
What is a SNIA standard that defines an interface used by applications to create, retrieve, update and delete elements from the cloud?
Antworten
-
FTP
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CDMI
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S3
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SFTP
Frage 4
Frage
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?
Antworten
-
to allow for more encrypted data to be stored on the array
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to improve the performance of the array
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to perform compression before writing data to the HDDs
-
to perform deduplication before writing data to the HDDs
Frage 5
Frage
Which two technologies use NAND flash memory (non-volatile) technology to store data? (Choose two.)
Antworten
-
quad-level cell (QLC)
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single-level cell (SLC)
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interim-level cell (ILC)
-
mufti -level cell (MLC)
Frage 6
Frage
What are two requirements of a server cluster with regards to storage technologies? (Choose two.)
Antworten
-
a switch fabric
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a file locking mechanism
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a back-end storage database
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shared storage
Frage 7
Frage
What is the default port that iSCSI traffic uses?
Antworten
-
443
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3260
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80
-
53
Frage 8
Frage
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?
Antworten
-
secure key
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certificate
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public key
-
private key
Frage 9
Frage
A physical server is having a native or bare-metal hypervisor installed before being deployed.
In this scenario, which statement is correct?
Antworten
-
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.
Frage 10
Frage
What is an implementation of a secure, multi-tenant cloud environment that is externally available to all users?
Antworten
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private
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public
-
secure
-
hybrid
Frage 11
Frage
What are two scenarios where using disk replication is a valid risk mitigation strategy? (Choose two.)
Antworten
-
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
Frage 12
Frage
Which interface is used for 40GbE?
Antworten
-
Twinax
-
Small Form Factor pluggable (SFP+)
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multimode fiber (MMF)
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Quad Small Form Factor pluggable {QSFP+)
Frage 13
Frage
You have a RAID 5 set with five disks at 400 GB each. Approximately how much usable space would this configuration yield?
Antworten
-
1 terabyte
-
2 terabytes
-
1.2 terabytes
-
16 terabytes
Frage 14
Frage
What are the requirements for a boot from SAN? (Choose two.)
Antworten
-
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
Frage 15
Frage
Which statement describes an N_Port login?
Antworten
-
a process by which a server HBA port logs in to a fabric
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a process by which FC initiators establish sessions with targets
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a process by which users obtain access to a host
-
a process by which two FC-4 layer processes establish communication
Frage 16
Frage
What are two characteristics of Challenge-Handshake Authentication Protocol (CHAP)? (Choose two.)
Antworten
-
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
Frage 17
Frage
What is the purpose of a host bus adapter (HBA)?
Antworten
-
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
Frage 18
Frage
Which two security methods will protect iSCSI traffic from unauthorized tampering or spoofing? (Choose two.)
Antworten
-
internet Protocol Security (IPsec)
-
ACLs
-
encryption at rest
-
Challenge Handshake Authentication Protocol (CHAP)
Frage 19
Frage
Which level of data access does a SAN device provide compared to NAS?
Antworten
-
file access
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block access
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packet access
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object access
Frage 20
Frage
What would be placed in a Fibre Channel zone?
Antworten
-
Ip address
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MAC address
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IQN of an initiator
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World Wide Port Name (WWPN)
Frage 21
Frage
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?
Antworten
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deduplication
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compression
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thin provisioning
-
conditioning
Frage 22
Frage
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?
Antworten
-
thick provisioning
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thin provisioning
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hybrid provisioning
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static provisioning
Frage 23
Frage
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?
Antworten
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public
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private
-
hybrid
-
secure
Frage 24
Frage
Which device would communicate to a DAS?
Antworten
-
NIC
-
switch
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HBA
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DB9 serial cable
Frage 25
Frage
According to SNIA, what are two valid storage tiering types? (Choose two.)
Antworten
-
storage cache tiering
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host tiering
-
application tiering
-
cloud tiering
Frage 26
Frage
What describes the process of moving data between different classes of disks and storage, based on policy?
Antworten
-
data clustering
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IOPS monitoring
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storage tiering
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LUN migration
Frage 27
Frage
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.)
Antworten
-
lower cost
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no moving parts
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better performance
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high capacity
Frage 28
Frage
You want to use a light-weight communication API for cloud access. What would you use in this situation?
Antworten
-
Representational State Transfer (REST)
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Simple Object Access Protocol (SOAP)
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Internet Engineering Task Force (IETF)
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World Wide Web Consortium (W3C)
Frage 29
Frage
Which backup technique is the slowest in terms of backup time?
Antworten
-
full backup
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incremental backup
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differential backup
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mirror backup
Frage 30
Frage
Which two statements about jumbo Ethernet frames are correct? (Choose two.)
Antworten
-
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.
Frage 31
Frage
Which hardware component transports FC and IP traffic?
Antworten
-
RAID array
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iSCSI
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NIC
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CNA
Frage 32
Frage
You want to improve disk space usage efficiency while maintaining high availability. In this scenario, which solution satisfies this requirement?
Antworten
-
RAID 0
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RAID 1
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RAID 5
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RAID 10
Frage 33
Frage
Which device would be an NDMP server1?
Antworten
-
a NAS device
-
a disk storage device
-
a tape storage device
-
a DAS device
Frage 34
Frage
Which two technologies are part of the Data Center Bridging (DCB) standard? (Choose two.)
Antworten
-
Priority-based Flow Control (PFC)
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Enhanced Transmission Selection (ETS)
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Fibre Channel over IP (FCIP)
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Internet key Exchange (IKE)
Frage 35
Frage
At which point in the communication chain is multi-pathing initiated?
Antworten
-
the operating system device driver level
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the switch level
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the storage array level
-
the physical cable interface level
Frage 36
Frage
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?
Antworten
-
an unplugged cable
-
a multi-path I/O failure
-
a corrupted volume
-
improper LUN masking
Frage 37
Frage
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?
Antworten
-
data compression
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encryption
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thin provisioning
-
deduplication
Frage 38
Frage
What should a valid iSCSI qualified name include?
Antworten
-
the iSCSI string
-
date code, in yyyy-mm format
-
the WWN string
-
initials of company name
Frage 39
Frage
What are two NAS file access protocols? (Choose two.)
Antworten
-
SMB
-
iSCSI
-
NFS
-
FCP
Frage 40
Frage
Which type of server initiates an NDMP backup?
Antworten
-
directory server
-
NDMP server
-
application server
-
database server
Frage 41
Frage
Which feature would be used for SAN traffic isolation?
Antworten
-
zoning
-
multi-pathing
-
volume management
-
failover
Frage 42
Frage
Which statement is correct regarding LUNs?
Antworten
-
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
Frage 43
Frage
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?
Antworten
-
*.txt
-
*.bat
-
*.jpg
-
*.ora
Frage 44
Frage
Which two statements regarding hybrid drives are correct? (Choose two.)
Antworten
-
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.
Frage 45
Frage
At which level would you apply LUN masking?
Antworten
-
file system level
-
switch level
-
zone alias level
-
controller level
Frage 46
Frage
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?
Antworten
-
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.
Frage 47
Frage
What is another name for a storage volume?
Antworten
-
Converged Network Adapter (CNA)
-
logical unit number (LUN)
-
storage port
-
Host Bus Adapter (HBA)
Frage 48
Frage
Which two connection sequences are supported for direct-attached storage? (Choose two.)
Antworten
-
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
Frage 49
Frage
When presenting a single volume to multiple hosts, which type of service needs to be running on the hosts?
Antworten
-
clustering services
-
DNS services
-
directory services
-
DHCP services
Frage 50
Frage
You are designing a synchronous remote mirror solution.
Which two factors regarding maximum distance must be considered in this scenario? (Choose two)
Antworten
-
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
Frage 51
Frage
What do RAID 5 sets use to rebuild data?
Antworten
-
Flash memory
-
mirroring
-
parity
-
data quiescing
Frage 52
Frage
What is the function of the Fibre Channel name server?
Antworten
-
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.
Frage 53
Frage
Software Defined Storage (SDS) uses which type of technology to function?
Antworten
-
Application
-
replication
-
virtualization
-
authentication
Frage 54
Frage
What is the name of the process by which a SAN dynamically extends volumes depending on server and application needs?
Antworten
-
copy On First Write (COFW)
-
deduplication
-
LUN expansion
-
thin provisioning
Frage 55
Frage
Which technology uses lossless Ethernet?
Antworten
-
FC
-
FcoE
-
FCIP
-
iFCP
Frage 56
Frage
Which software technique reduces the effects of a hardware component failure?
Antworten
-
volume management
-
multi-pathing
-
LUN masking
-
zoning
Frage 57
Frage
What are two reasons for using a full backup? (Choose two.)
Antworten
-
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.
Frage 58
Frage
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?
Antworten
-
TLS
-
CDMI
-
SMTP
-
SNMP
Frage 59
Frage
Which two statements are true about archiving? (Choose two.)
Antworten
-
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.
Frage 60
Frage
A customer hires you to create an incremental backup scheme. Which solution would you recommend to the customer?
Antworten
-
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.
Frage 61
Frage
Which type of device would you typically use for file access storage?
Antworten
-
SAN
-
NAS
-
DAS
-
HBA
Frage 62
Frage
What are three iSCSI configuration optimization techniques? (Choose three.)
Antworten
-
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.
Frage 63
Frage
Which storage technology uses optics for connectivity?
Antworten
-
LTO tape
-
SAS
-
SATA
-
Fibre Channel
-
iSCSI
Frage 64
Frage
What is the process called that Solid State Drives (SSDs) use to reclaim space taken by previously stored data?
Antworten
-
garbage collection
-
coalescing
-
write amplification
-
IOPS resizing
Frage 65
Frage
What is a set of data processing components that are automatically provisioned by providers, accessed over a network, and provides secure multi-tenancy?
Antworten
-
network infrastructure
-
database infrastructure
-
storage infrastructure
-
cloud infrastructure
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