Answer: C

Explanation: Hybrid cloud is a cloud computing environment which uses a mix of on-premises, private cloud and third-party, public cloud services with orchestration between the two platforms. By allowing workloads to move between private and public clouds as computing needs and costs change, hybrid cloud gives businesses greater flexibility and more data deployment options.

Incorrect:

Not D: A content delivery network (CDN) is a system of distributed servers (network) that deliver webpages and other Web content to a user based on the geographic locations of the user, the origin of the webpage and a content delivery server.

References:

http://searchcloudcomputing.techtarget.com/definition/hybrid-cloud

Answer: C

Explanation: * Encrypt data-at-rest

Encryption is your front-line defense for defending data-at-rest. It limits access to those with the right keys - locking out anyone who doesn't have them.

Answer: C

Explanation: * Encrypt data-at-rest

Encryption is your front-line defense for defending data-at-rest. It limits access to those with the right keys - locking out anyone who doesn't have them.

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

Answer: B 

Answer: C

Explanation: The term "software multitenancy" refers to a software architecture in which a single instance of software runs on a server and serves multiple tenants. A tenant is a group of users who share a common access with specific privileges to the software instance.

Incorrect:

Not A: Availability zones (AZs) are isolated locations within data center regions from which public cloud services originate and operate.

Not B: A fault domain is a set of hardware components - computers, switches, and more - that share a single point of failure.

Not D: Zones of trust are a defined area of the system where by by necessity, by the presence of key information assets and by the wider environmental context the connections within the zone are treated as at the same level of trust. This effectively couples the components within that subsystem for security purposes.

References:

https://en.wikipedia.org/wiki/Multitenancy

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

Answer: D 

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

Answer: D