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Q1. What describes the storage categories represented by OpenStack Swift and EMC XtremIO requirements?
A. Swift = Distributed Object StorageXtremIO = Central Storage
B. Swift = Central Storage XtremIO = Distributed File Storage
C. Swift = Distributed Block StorageXtremIO = Distributed Object Storage
D. Swift = Distributed File StorageXtremIO = Distributed Block Storage
Answer: A
Explanation: OpenStack Swift is a globally-distributed object storage with a single namespace that's durable enough for the most demanding private clouds and now brought to you in an easy-to-deploy/scale/manage system.
XtremIO is a flash-based Storage Array. Explanation:
References:
https://www.swiftstack.com/#testimonial/2 http://www.emc.com/collateral/white-papers/h11752-intro-to-XtremIO- array-wp.pdf
Q2. After developing prototype applications in the public cloud, developers determined that they want softwaredefined network functionality. Which ability will this requirement provide for the developers?
A. Programmatically provision an IPsec VPN tunnel between the public and private clouds
B. Programmatically migrate layer-3 access from aggregate to access switches
C. Programmatically control physical core network topologies
D. Programmatically provision physical network segments and services
Answer: D
Explanation: Software-defined networking (SDN) is an approach to computer networking that allows network administrators to manage network services through abstraction of higher-level functionality. This is done by decoupling the system that makes decisions about where traffic is sent (the control plane) from the underlying systems that forward traffic to the selected destination (the data plane).
Reference: https://en.wikipedia.org/wiki/Software-defined_networking
Q3. After developing prototype applications in the public cloud, developers determined that they want softwaredefined network functionality. Which ability will this requirement provide for the developers?
A. Programmatically provision an IPsec VPN tunnel between the public and private clouds
B. Programmatically migrate layer-3 access from aggregate to access switches
C. Programmatically control physical core network topologies
D. Programmatically provision physical network segments and services
Answer: D
Explanation: Software-defined networking (SDN) is an approach to computer networking that allows network administrators to manage network services through abstraction of higher-level functionality. This is done by decoupling the system that makes decisions about where traffic is sent (the control plane) from the underlying systems that forward traffic to the selected destination (the data plane).
Reference: https://en.wikipedia.org/wiki/Software-defined_networking
Q4. You are designing consumer compute resources in an onsite private cloud. During an assessment, you discover that the organization's IT staff wants secure access to the underlying host OS. What should be included in the design to support this requirement?
A. Host IDS configurationSecure key infrastructure Bridged management network
B. Perimeter firewall configuration VPN encryption Separate management network
C. Host OS firewall configuration Central logging Physically isolated management network
D. Host OS firewall configuration Secure key infrastructure Separate management network
Answer: B
Q5. An organization wants to provide backup services in the cloud. They have no backup infrastructure in place. The organization has concerns about losing data if a site disaster occurs. They want to maintain control of backup data placement because of data privacy laws. Finally, they want to maintain at least one month's worth of backups onsite. Which backup solution will meet these requirements?
A. Local backup
B. Remote backups
C. Local backup with replication
D. Local backups with cloud gateway
Answer: D
Explanation: Cloud gateway allows EMC customers to move on-premise data from EMC arrays to public cloud storage providers. Clod gateway facilitate data migration from on-premises to a public cloud storage service to create a true hybrid cloud storage environment.
Cloud gateways such as Riverbed's SteelStore (formally known as Whitewater) can act as a local backup target for funneling data to a storage cloud for offsite storage.
Explanation: References:
http://blogs.forrester.com/henry_baltazar/14-07-09-gateways_will_accelerate_data_migration_to_the_cloud
Q6. An organization wants to provide backup services in the cloud. They have no backup infrastructure in place. The organization has concerns about losing data if a site disaster occurs. They want to maintain control of backup data placement because of data privacy laws. Finally, they want to maintain at least one month's worth of backups onsite. Which backup solution will meet these requirements?
A. Local backup
B. Remote backups
C. Local backup with replication
D. Local backups with cloud gateway
Answer: D
Explanation: Cloud gateway allows EMC customers to move on-premise data from EMC arrays to public cloud storage providers. Clod gateway facilitate data migration from on-premises to a public cloud storage service to create a true hybrid cloud storage environment.
Cloud gateways such as Riverbed's SteelStore (formally known as Whitewater) can act as a local backup target for funneling data to a storage cloud for offsite storage.
Explanation: References:
http://blogs.forrester.com/henry_baltazar/14-07-09-gateways_will_accelerate_data_migration_to_the_cloud
Q7. An organization has internal applications that require block, file, and object storage. They anticipate the need for multi-PB storage within the next 18 months. In addition, they would prefer to use commodity hardware as well as open source technologies. Which solution should be recommended?
A. Cinder
B. Hadoop
C. Swift
D. Ceph
Answer: C
Explanation: OpenStack Swift Object Storage on EMC Isilon
EMC Isilon with OneFS 7.2 now supports OpenStack Swift API. Isilon is simple to manage, highly scalable (up to 30PB+ in a single namespace) and highly efficient (80%+ storage utilization) NAS platform.
Explanation: References:
http://samuraiincloud.com/2014/11/26/openstack-swift-object-storage-on-emc-isilon/
Q8. A company wants to build an IaaS cloud to host cloud-native applications. On which areas should a cloud architect focus when gathering requirements for this cloud design?
A. Automation, multi-tenancy, and hardware availability
B. Automation, hardware availability, and policy compliance
C. Hardware availability, policy compliance, and multi-tenancy
D. Policy compliance, automation, and multi-tenancy
Answer: C
Explanation: * Multi-tenancy
Infrastructure as a Service is very similar to what we've known as hosting or collocation services, just painted with bright cloudy colors. Multi-tenant services are any services that you offer to multiple customers, or "tenants." In most cases, IaaS and multi-tenant services mean the same thing, although you could also implement storage- or database- related multi-tenant service.
* Hardware
In the case of IaaS the computing resource provided is specifically that of virtualised hardware, in other words, computing infrastructure.
Note: Infrastructure as a Service (IaaS) is a form of cloud computing that provides virtualized computing resources over the Internet.
Explanation: References:
http://www.interoute.com/what-iaas
http://searchtelecom.techtarget.com/answer/How-do-Infrastructure-as-a-Service-and-multi-tenant-servicesdiffer
Q9. An organization plans to build a cloud using some of the existing data center infrastructure. Specifically, they want to use the existing FC storage infrastructure to support cloud hosts. However, they want to logically separate the cloud storage traffic from the existing data center storage traffic within this infrastructure. Which mechanism can be used to meet this requirement?
A. MPIO
B. VLAN
C. VSAN
D. Masking
Answer: D
Explanation: The use of VSANs allows the isolation of traffic within specific portions of the network. If a problem occurs in one VSAN, that problem can be handled with a minimum of disruption to the rest of the network. VSANs can also be configured separately and independently.
Note: Virtual storage area network (VSAN) is a collection of ports from a set of connected Fibre Channel switches, that form a virtual fabric. Ports within a single switch can be partitioned into multiple VSANs, despite sharing hardware resources. Conversely, multiple switches can join a number of ports to form a single VSAN.
Incorrect:
Not A: Microsoft Multipath I/O (MPIO) is a Microsoft-provided framework that allows storage providers to develop multipath solutions that contain the hardware-specific information needed to optimize connectivity with their storage arrays.
MPIO is protocol-independent and can be used with Fibre Channel, Internet SCSI (iSCSI), and Serial Attached SCSI (SAS) interfaces in Windows Server® 2008, Windows Server 2008 R2 and Windows Server 2012.
Not D: Logical Unit Number Masking or LUN masking is an authorization process that makes a Logical Unit Number available to some hosts and unavailable to other hosts. LUN masking operates at Layer 4 of the Fibre Channel protocol.
Reference: https://en.wikipedia.org/wiki/VSAN
Q10. A cloud architect is designing a private cloud for an organization. The organization has no existing backup infrastructure. They want to offer consumers the ability to backup virtual machine instances using image-based backups.
What should the cloud architect look for when selecting a backup application for this environment?
A. Virtual machine hardware is on the backup application vendor's compatibility list
B. Hypervisor servers' hardware is on the backup application vendor's compatibility list
C. Backup application can be integrated with the selected CMP components
D. Backup application supports a cloud gateway for accessing the cloud-based virtual machines
Answer: D
Explanation: A cloud storage gateway provides basic protocol translation and simple connectivity to allow the incompatible technologies to communicate transparently. The gateway can make cloud storage appear to be a NAS filer, a block storage array, a backup target or even an extension of the application itself.
Explanation: References:
http://searchcloudstorage.techtarget.com/definition/cloud-storage-gateway
