emc 2

1.

1 point

What defines the time taken to position the sector on the platter under the read/write head?

Rotational Delay

Seek Time

Response Time

Data Transfer Rate

2.

1 point

What is true about cache dirty page?

Data requested by the host but not yet fetched

Data read from disk but not accessed by the host

Data that has changed but is not yet written to disk

Data that has changed and has been written to disk

3.

1 point

As your organizations SAN enviornment grows, you realize that there is a greater need to manage SAN security. Which mechanism is required to prevent unauthorized activity on the FC fabric for management operations?

VSAN

Zoning

Access control lists

Role-based access control

4.

1 point

Which operation is performed by a scale out NAs when it recieves a large write I/O from its clients?

I/O is sent to the high storage capacity node in the cluster 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 striped across multiple nodes for processing

5.

1 point

When developing a disaster recovery plan, what is the result of choosing a particular recovery time objective for a system?

Determines how long to retain backup copies

Determines how many transaction logs should be backed up

Determines the type and location of the backup media

Determines how often to take a backup of the system

6.

1 point

Which operation writes data in cache and immediately to disk, before sending an acknowledgement to the host?

Write-back cache

Write cache vaulting

Write through cache

Write aside cache

7.

1 point

What is a benefit of WWN zoning over port zoning?

A server, after being moved to another switch port in the fabric, maintains connevtivity to its zone partners without the need to modify the zoning configuration

A server, after replacement of its HBA's, does not requre performing a fabric login to maintain connectivity to its zone partners

A server, after replacement of its HBAs, maintains connectivity to its zone partners without the need to modify the zoning configuration

A server, after being moved to another fabric maintains connectivity to its zone partners without the need to modify the zoning configuration

8.

1 point

To determine the business impact of downtime, what is the average cost of downtime per hour of the business?

10417

12024

10,521

1105

9.

1 point

In Kerberos authentication, what is a role of the active directory

Verifies the user's login information

Verifies the session ID when the client-server session is established

Implements the authentication service and ticket granting service

Maintains the access control list in a keytab file

10.

1 point

A finance department wants to secure its data while the data traverses over the FC SAN. Currently the SAN is also used by other deparments in the organization. Which implementation should be recommended to isolate other department traffic from the finance department traffic?

Port Binding

FAbric binding

Virtual SAN

Virtual LAN

11.

1 point

Which data center characteristic refers to the capability to grow resources without impacting business operations?

Availability

Security

Performance

Scalability

12.

1 point

What is an advantage of reporting on storage arrays?

Monitoring the number of arrays

Monitoring the number of disks in a RAID group

Planning for storage groups

Planning for capacity

13.

1 point

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?

IP router

FC gateway

FCIP bridge

iSCSI gateway

14.

1 point

What is a benefit of virtual storage provisioning over traditional provisioning?

Enables more efficent allocation of storage to hosts

Provides full control for precise data placement

Does not enable oversubscription

CAn be used for applications that require predictable performance

15.

1 point

What accurately describes a Vblock?

Cloud infrastructure package

SMI specification

Block-based storage device

Virtual tape library

16.

1 point

Which report provides information about the allocation and utilization of storage infrastructure components by various departments or user groups?

Chargeback

Configuration and Asset Management

Capacity planning

Service Management

17.

1 point

Which component of an archiving solution is responsible for scanning data that can be archived based on a policy?

Archiving policy server

Archiving agent

Archiving server

Archiving storage device

18.

1 point

What describes a hybrid cloud?

Composed of distinct clouds that are bound together by standardized or proprietary technology

Combination of a private cloud and a public cloud that are owned, managed and operated by a single organization

Combination of two distinct cloud infrastructures that are managed together

Composed of two or more distinct data centers that enable data and application portability

19.

1 point

What is a requirement for a native iSCSI implementation?

Host with a NIC and an array with an FCoE port

Host with an iSCSI HBA and an array with an iSCSI port

Host with an iSCSI HBA and an array with an FC port

Host with iSCSI initiatior software and an array with an FCIP port

20.

1 point

In addition to applications and databases what are other core elements of a data infrastructure?

Servers/operating systems, networks, storage arrays

Servers/operating systems, SAN and JBOD

JBOD, networks, storage arrays

Servers/operating systems, DAS and NAS

21.

1 point

Why does a restore operation need to communicate with the backup server?

Determine the RPO of the backup save set

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

22.

1 point

Which data protection technology provides the highest degree of protection against logical corruption and a near-zero RPO?

Backup-to-disk

Snapshots with CoFW

CDP

Mirroring

23.

1 point

Which remote replication solution has the highest bandwidth requirements?

Host-based asynchronous LVM mirroring

Log shipping over IP networks

Array-based synchronous

Array-based disk buffered

24.

1 point

In a Fibre Channel (FC) SAN, which protocol implementation is used?

FC over iSCSI

SCSI over FCoE

SCSI over FC

FC over SCSI

25.

1 point

Which NAS backup enviornment transfers data to be backed up over a private backup network?

Serverless

NDMP two-way

NDMP three-way

Server-based

26.

1 point

Which three subject areas, taken together, define storage security?

Access control, information, and networking

Information, networking, and storage

Application, management, and backup

Access control, storage, and encryption

27.

1 point

If a disks drive rotational speed is 10000 revolutions per minute, what is its average rotational latency?

0.003 milliseconds

3 milliseconds

5 milliseconds

0.05 milliseconds

28.

1 point

In the context of information security, which atribute other than individual identity and group membership can be used to restrict unauthorized access?

Host network address

Role

World Wide Name

Cryptography

29.

1 point

What is a characteristic of an active/passive storage array configuration?

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

30.

1 point

An eight-disk RAID 6 set has a stripe size of 192 KB. What is the stripe depth

32 KB

48 KB

24 KB

64 KB

31.

1 point

What is a key benefit of RAID 5 compared to RAID 1+0 for small, random I/Os?

Higher availability

Faster rebuild times after failure

Improved storage space utilization

Improved write performance

32.

1 point

What is a characteristic of asynchronous remote replication?

A near-zero RPO disaster recovery solution

Write must be committed at the target before being acknowledged as complete

Deployed only for distances within 200km between two sites

Replica will be behind the source by at least the size of the buffer

33.

1 point

What is a characteristic of triangle/multitarget replication?

Bunker site must be in sync with the remote site at all times

Distance between all sites must be less than 125km

Only the production site is available during normal operations

Failover can occur to either of the two remote sites

34.

1 point

What is a characteristic of cloud-optimized storage?

Server-centric

Secure multitenancy

Single access mechanism

Native source-based deduplication

35.

1 point

In what way does an integrated NAS solution differ from a Gateway NAS solution?

Integrated NAS allows both file and block level access to the clients. Gateway NAS allows only block level access to the clients.

Integrated NAS manages storage devices through NAS software GATeway NAS relies on storage array management software to manage storage devices

Integrated NAS utilizes specialized operating systems. Gateway NAS utilizes generic operating systems

Integrated NAS uses Fibre Channel disks only. Gateway NAS uses both Fibre Channel and SATA disks.

36.

1 point

What is the name of the drive sub-assembly which contains the platters and read/write heads?

ATA

HDA

SATA

IDE

37.

1 point

Why would an iSCSI solution be implemented?

Block strage over IP is much faster than FC

Leverage existing IP network infrastructures

iSCSI HBAs are inexpensive

All storage arrays supply GigE ports

38.

1 point

How many disks are required to meet both capacity and performance requirements?

22

24

15

60

39.

1 point

Which two mechanisms address threats of elevating user privileges in the application access domain?

User authentication and Information Rights Managements

Authentication and authorization

Access control to storage objects and auditing

Access control to storage objects and Access Control Lists

40.

1 point

A customer has an existing SAN enviornment. The customer wants to add NAS to share the storage space. Which solution is most appropriate?

Scale-out NAS

FCoE SAN

Gateway NAS

IP SAN

41.

1 point

What is a characteristic of a virtual tape library?

Uses disk drives as backup media

A virtual tape cannot span multiple LUNS

Uses a special mechanism to addess the shoe-shining effect

Requires changes on the backup software

42.

1 point

What type of cloud deployment model is represented in the exhibit?

Public

Hybrid

Community

Private

43.

1 point

Which zone(s) represent port zoning?

Zone 2

Zone 1

Zone 3

Zone 1 and 3

44.

1 point

Which zone(s) represent mixed zoning?

Zone 1 and 2

Zone 3

Zone 2

Zone 1

45.

1 point

What type of relication is represented in the exhibit?

Cascade/multiphop, synchronous+disk buffered

Triangle/multitarget, synchronous + differential resync

Triangle/multirarget, synchronous + disk buffered

Cascade/multiphop, synchronous + asynchronous

46.

1 point

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

Monitoring

Reporting

PRovisioning

Alerting

47.

1 point

How is the internal transfer rate of disk drives defined?

Speed at which data moves from a platter's surface to the internal buffer

Speed at which data moves from internal buffer to the host interface

Speed at which data moves from the innermost cylinder to the read/write head

Speed at which data moves from the read/write head to the platter

48.

1 point

Which process defines the writing of physical address information to a disk?

Command queuing

Zoned-bit recording

Formatting

Partitioning

49.

1 point

How many disks are required to meet both the applications capacity and performance requirements?

50

40

72

10

50.

1 point

Where does a host-based volume manager map a file system block?

Logical Extent

Tracks

Sectors

Physical Extent