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QUESTION 16
In addition to the operating system, what other components does the consumer manage in an IaaS cloud service model?
A. Application, data, storage, and physical networking
B. Data, middleware, application, and runtime
C. Runtime, physical servers, application, and middleware
D. Middleware, runtime, hypervisor, and application
Answer: B
Explanation:
In the case of IaaS the computing resource provided is specifically that of virtualised hardware, in other words, computing infrastructure. IaaS clouds often offer additional resources such as a virtual-machine disk-image library, raw block storage, file or object storage, firewalls, load balancers, IP addresses, virtual local area networks (VLANs), and software bundles.
Incorrect:
Not A: Not physical networking.
Not C: Not physical servers.
Not D: Not hypervisors.
http://www.interoute.com/what-iaas
QUESTION 17
An organization uses Microsoft Active Directory (AD) for service authentication in their private cloud. They want to use the same authentication source for services in the public cloud. External employees access services in both clouds and need to authenticate with AD. The organization wants to minimize and secure network traffic. Which solution will address these requirements?
A. Connect the two clouds through IPsec VPN.
Place AD controllers in the private cloud only.
B. Connect the two clouds through IPsec VPN.
Place AD controllers in the private and public clouds.
C. Configure perimeter firewalls to allow AD traffic.
Place AD controllers in the private and public clouds.
D. External users connect with IPsec VPN.
Place AD controllers in the private cloud only.
Answer: B
Explanation:
https://blogs.technet.microsoft.com/keithmayer/2013/01/20/step-by-step-extending-on-premise-active-directory-to-the-cloud-with-windows-azure-31-days-of-servers-in-the-cloud-part-20-of-31/
QUESTION 18
A cloud architect is designing a hybrid cloud for an organization. A requirement for this environment is that the private cloud user credential be trusted by both cloud provisioning APIs. Which type of authentication will meet this requirement?
A. Federated authentication
B. Asymmetric encryption
C. Symmetric encryption
D. Shared-key authentication
Answer: A
Explanation:
A federated identity in information technology is the means of linking a person’s electronic identity and attributes, stored across multiple distinct identity management systems.
https://en.wikipedia.org/wiki/Federated_identity
QUESTION 19
Which authentication and authorization feature is critical for service providers when supporting multi-tenancy?
A. Integration with external authentication services
B. Integration with external directory services
C. Portal authentication services
D. Single sign-on capability
Answer: A
QUESTION 20
An organization wants to have showback capability in their private cloud. Which cloud management platform component should be included in the cloud design to support this requirement?
A. SSO
B. Service catalog
C. Metering application
D. Monitoring application
Answer: C
Explanation:
IT chargeback is an accounting strategy that applies the costs of IT hardware, software, cloud services or shared services to the business unit in which they are used. IT showback is similar to IT chargeback, but the prices are for informational purposes only and no one is billed.
http://searchaws.techtarget.com/definition/IT-chargeback-showback
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