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WorksheetsInformation Storage & Management Assessment (Set A)
Total questions: 50
Worksheet time: 50mins
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?
Low Watermark (LWM)
High Watermark (HWM)
Least Recently Used (LRU)
Most Recently Used (MRU)
What does the area ID of the FC address identify?
An individual port within a fabric
Unique number provided to each switch in the fabric
Location of the name server within the fabric
Group of ports within a switch
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?
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
Which host component eliminates the need to deploy separate adapters for FC and Ethernet communications?
TCP Offload Engine NIC
FCIP bridging adapter
Converged network adapter
iSCSI host bus adapter
What is a function of unified management software in cloud computing?
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
Which EMC product provides the capability to recover data up to any point-in-time?
RecoverPoint
NetWorker
Avamar
Data Domain
What is needed to perform a non-disruptive migration of virtual machines (VMs) between hypervisors?
Hypervisors must be running within the same physical machine
Hypervisors must have access to the same storage volume
Physical machines running hypervisors must have the same configuration
Both hypervisors must have the same IP address
Which iSCSI name requires an organization to own a registered domain name?
EUI
WWNN
WWPN
IQN
Which data center requirement refers to applying mechanisms that ensure data is stored and retrieved as it wasreceived?
Availability
Security
Integrity
Performance
What describes a landing zone in a disk drive?
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
Area on which the read/write head rests
What is a characteristic of unified storage?
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
What defines the time taken to position the read/write head across the platter with a radial movement in a disk drive?
Data transfer time
Seek time
Rotational latency
Service time
What is a benefit of cloud computing over traditional computing?
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
Which statement describes a denial of service attack?
Prevents unauthorized users to access the resources and services
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
What is a key benefit of virtualization?
Improved performance
Enhanced interoperability
Unlimited resource scaling
Improved resource utilization
What is a key security consideration when a NAS device enables sharing of the same data among UNIX and Microsoft Windows users?
NAS defines and maintains ownership to the objects
NIS server must separately maintain SIDs for UNIX and Windows environments
NAS device must map UNIX permissions to Windows and vice versa
Object permissions are not defined in advance and assigned dynamically
Which cloud computing characteristic enables consumers to grow and shrink the demand for resources
dynamically?
Resource pooling
Measured service
On-demand self-service
Rapid elasticity
Which operation is performed while creating a VM snapshot?
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
Which cloud computing capability enables monitoring and reporting resource usage?
Pooling
Metering
Self-service requesting
Publishing
In the context of protecting the FC SAN infrastructure, what is an example of infrastructure integrity?
Implementing iSNS discovery domains
Implementing an FSPF algorithm to create a virtual SAN
Preventing node login to the fabric without proper authorization
Not permitting physical segmentation of nodes
What is true about parity-based RAID?
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
What is an accurate statement about a gateway NAS solution?
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
NAS head and storage are managed independently
What is prevented using RAID technology?
Host Bus Adapter failures
Data loss
Security breach
Switch failure
Which process minimizes the exposure to a loss of uncommitted cached data when there is a power failure?
Cache vaulting
Cache mirroring
Low watermarking
Prefetching
What are the three elements of the risk triad from an information security perspective?
Actions, threats, and vulnerabilities
Assets, threats, and countermeasures
Assets, threats, and vulnerabilities
Assets, countermeasures, and vulnerabilities
Which cloud computing characteristic enables consumers to request resources using a service catalog through a web-based user interface?
On-demand self-service
Broad network access
Metered services
Catalog management
What is a purpose for distributing Switch Registered State Change Notifications (SW-RSCNs) in a 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
Updates the name server on all switches in the fabric
In the Fibre Channel protocol, what are functions of the FC-1 layer?
Encoding and decoding
Routing and flow control
Interface mapping and flow control
Transmission of raw bits and encoding
What is a security implementation in NAS environments?
S_ID Lockdown
Port binding
Kerberos
FC-SP
In an FC SAN environment, what is a benefit of zoning?
Isolates fabric services
Enables online volume expansion
Provides non-disruptive data migration
Restricts RSCN traffic
What is the RAID 5 write penalty for random, small write I/Os?
1
2
4
6
Which EMC block-level storage virtualization product enables hosts from two different data centers to access a single copy of data?
VPLEX
VMAX
VNX
Vblock
Which EMC product enables VNX array-based remote replication from a primary volume to a secondary volume residing on a different VNX storage system?
MirrorView
SnapView
RepliStor
SRDF
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?
Cumulative
Full
Incremental
Differential
What is a characteristic of a scale-out NAS?
Distinct file systems are created on each node in the cluster
File system grows dynamically as nodes are added in the cluster
Up to four file systems can be created across the cluster
Different file systems can be mixed on each node in a single cluster
In a Microsoft Windows file sharing environment, what is a function of system access control lists (SACL)?
Provides information on system access troubleshooting
Uniquely identifies objects, users, and user groups
Provides path name to access both inbound and outbound traffic
Determines object access information that needs to be audited
What is an advantage of synchronous remote replication compared to other remote replication methods?
Near zero RTO
No distance limitation
Near zero RPO
Faster response time
What is an advantage of sub-LUN tiering?
Improved performance
Enhanced reliability and availability
Dynamic expansion of storage capacity
Faster provisioning of thin LUNs
Which fabric service is responsible for managing and distributing Registered State Change Notifications
(RSCNs) to attached node ports?
Name server
Fabric login server
Fabric controller
Management server
Which SAN security mechanism will prevent a switch port from being enabled even after a switch reboot?
Port Binding
Port Lockdown
Persistent Switch Disable
Persistent Port Disable
What describes a full mesh topology?
Consists of core and edge switch tiers
Requires four switches
All switches are directly connected to each other
Requires two ISL hops for host to storage traffic
What is a characteristic of pointer-based virtual replication?
Replica is immediately available after activation of a replication session
Replica device is at least as large as the source device
Replica is available only after detachment from the source
Source does not need to be healthy for the restore
When using the image-based backup approach to backup a virtual machine, where does the backup client run?
Hypervisor
Virtual machine
Backup device
Proxy server
Which NAS implementation consolidates file-based and block-based access on a single storage platform?
Scale-out
Gateway
Unified
Integrated
Which data deduplication method increases the chance of identifying duplicate data even when there is only a minor difference between two documents?
File level
Fixed-block
Variable-length segment
Single-instance
What is a key advantage of data striping across multiple disks as compared to a single disk?
Space utilization
Protection
Performance
Capacity
Which EMC product is a disk-based backup and recovery solution and provides source-based data
deduplication?
Data Domain
Avamar
NetWorker
SourceOne
When a service is described as "three 9s available", what is the approximate amount of downtime allowed per week?
10 seconds
10 minutes
10 hours
10 days
What is a characteristic of an FC-SW implementation?
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
What are the key components of an intelligent storage system?
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
