20.Which of the following is true of a client/server infrastructure?
A.It starts with a basic 3-tier model and expands on it to allow scalability.
B.It has several layers and each layer undertakes a specific task.
C.It reduces the load placed on the network capacity and ensures efficiency.
D.It centralizes processing and storage for all information on a server.
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26.A tiered infrastructure is also known as ____.
A.distributed infrastructure
B.client/server infrastructure
C.critical infrastructure
D.layer infrastructure
38._____ is a delivery model for software which provides the ability to customize data entry forms, screens, reports, and the like, and access to software development tools to alter the way in which the software works by adding new modules (services) and/or making modifications to existing modules.
A.IaaS
B.SaaS
C.SLA
D.PaaS
39._____ involves using the cloud for a vast majority of your computing needs.
A.IaaS
B.SaaS
C.SLA
D.PaaS
40.Which of the following is true of cloud computing?
A.It does not offer pay-per-use options and increases a firm's capital expenditures.
B.It raises barriers to entry in markets that require an investment in technology.
C.It gives immediate access to a broad range of application software.
D.It is a risk-free alternative to acquiring physical computing infrastructure.
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