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Question
One type of cloud computing service that allows companies to order server capacity and storage on demand is called:A) software as a service.
B) leased computing.
C) hardware as a service.
D) storage on demand.
E) middleware as a service.
Answer
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Related questions
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All of the following are types of user documentation EXCEPT:
A) release description.
B) reference guide.
C) acceptance sign-off.
D) entity-relationship diagrams.
E) user's guide.
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Changing over from the old information system to a new one by turning off the old system as the new one is turned on best describes:
A) phased installation.
B) single location installation.
C) parallel installation.
D) direct installation.
E) rotation installation.
Q:
The organizational process of changing over from the current information system to a new one best defines:
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User testing of a completed information system using real data in the real user environment refers to:
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B) alpha testing.
C) beta testing.
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The process of bringing together all of the modules that comprise a program for testing purposes is referred to as:
A) unity testing.
B) integration testing.
C) system testing.
D) implementation.
E) stub testing.
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Testing each module alone in an attempt to discover any errors that may exist in the module's code is referred to as:
A) unit testing.
B) system testing.
C) stub testing.
D) singular testing.
E) a walkthrough.
Q:
A primary objective of using automated tools for systems development and maintenance is to change radically how code and documentation are modified and updated.
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The number of customers for a given system influences most of the costs associated with maintaining a system.
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Today's environment makes it possible to maintain and update external documentation as long as desired.
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During alpha testing, users test a completed information system using simulated data.
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System testing is the process of bringing together all of the modules that a program comprises for testing purposes.
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Walkthroughs are a very effective method for identifying errors in code.
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Testing specialists are responsible for developing test plans, establishing testing standards, integrating testing and development activities in the life cycle, and ensuring that test plans are completed.
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If OrderNumber serves as the primary key in the ORDER relation and also appears as a nonkey attribute in the INVOICE relation, then OrderNumber is said to be a:
A) foreign key.
B) candidate key.
C) pointer.
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Q:
The primary deliverable from logical database design is:
A) normalized relations.
B) design specifications.
C) an updated Baseline Project Plan.
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Q:
Key physical database design decisions typically do not include:
A) choosing the storage format for each attribute from the logical database model.
B) grouping attributes from the logical database model into physical records.
C) arranging related records in secondary memory so that individual and groups of records can be stored, retrieved, and updated rapidly.
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Q:
Which of the following is NOT a key step in logical database design?
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B) Compare the consolidated logical database design with the translated E-R model and produce, through view integration, one final logical database design for the application.
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Multiple key retrieval is possible with sequential file organization.
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Sequential files are practical for random row retrievals.
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View integration is the last step of logical database design.
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A recursive foreign key is a foreign key in a relation that references the primary key value of the same relation.
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For a binary one-to-one relationship between two entities, A and B, the primary key of A becomes a foreign key in B and the primary key in B becomes a foreign key in A.
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The creation of a separate relation is sometimes required to represent a relationship.
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A relation is said to be in second normal form if the primary key consists of only one attribute.