System questions

Question: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

Question:On a data-flow diagram, a diamond represents a process.

Question:When designing the navigation procedures within your system, the primary concerns are

Question:Functional decomposition is a repetitive process of breaking the description or perspective of a system down into finer and finer detail.

Question:A ternary relationship is the equivalent of three binary relationships.

Question:In a file-oriented information system, a security file ____.

Question:Which of the following types of maintenance accounts for as much as 70 percent of all maintenance activity?

Question:In a typical file processing environment, ____ problems can occur if updates are not applied in every file.

Question:The ease with which software can be understood, corrected, adapted, and enhanced best describes

Question:Which of the following influences most of the costs associated with maintaining a system?

Question:____ describe what objects need to know about each other, how objects respond to changes in other objects, and the effects of membership in classes, superclasses, and subclasses.

Question:The dependence of nonprimary key attributes on other nonprimary key attributes best describes a

Question:A primary key should be null.

Question:A relationship between object classes best defines

Question:Data-flow diagramming is one of several structured analysis techniques used to increase software development productivity.

Question:Referential integrity specifies that the value of an attribute of one relation depends on the existence of the same attribute in another relation.

Question:Which of the following functional capabilities are required for providing smooth and easy navigation within a form?

Question:During an inspection test, exactly what the code does is investigated.

Question:A relationship between the instances of one entity type is a

Question:When two relations, A and B, have a many-to-many relationship, we create a separate relation, C, to represent this.

Question:A relation is said to be in second normal form if the primary key consists of only one attribute.

Question:Where possible, text should appear in all uppercase on forms.

Question:Which of the following encompasses an object's properties and the values those properties have?

Question:Which of the following represents how an object acts and reacts?

Question:Which of the following provides an external interface to a class?

Question:During beta testing, users test a completed information system using real data in the real user environment.

Question:Which of the following is a true statement?

Question:Changes made to a system to fix or enhance its functionality best defines

Question:When each nonprimary key attribute is identified by the whole key, the relation is said to be in at least

Question:The most complete acceptance testing will include

Question:During physical design, you consider

Question:A context diagram shows the scope of the organizational system, system boundaries, external entities that interact with the system, and the major information flows between entities and the system.

Question:An object is an entity that has a well-defined role in the application domain, and has state, behavior, and identity.

Question:An association between the instances of one or more entity types that is of interest to the organization best defines

Question:Highlighting methods should be consistently selected and used based upon the level of importance of the emphasized information.

Question:Use cases show the static structure of data and the operations that act on data.

Question:____ is the transfer of information systems development, operation, or maintenance to an outside firm that provides these services, for a fee, on a temporary or long-term basis.

Question:A(n) ____ is a user interface that allows users to interact with graphical objects and pointing devices.

Question:An identifier is a candidate key that has been selected as the unique, identifying characteristic for an entity type.

Question:Transitive attributes are attributes that determine other attributes.

Question:Combining all normalized user views into one consolidated logical database model refers to

Question:A functional dependency between two (or more) nonkey attributes in a relation defines a

Question:The purpose of acceptance testing is to

Question:A candidate key that has been selected as the unique, identifying characteristic for an entity type is called a(n)

Question:On a use-case diagram, a linking relationship arises when one use case references another use case.

Question:An arrow on a data-flow diagram represents a(n)

Question:Which of the following is not a rule for structuring data entry fields?

Question:One problem in a file processing environment is ____, which means that data common to two or more information systems is stored in several places.

Question:An object has certain ____, like the make, model, and color of a car.

Question:A use case is a complete sequence of related actions initiated by an actor; it represents a specific way to use the system.

Question:During stress testing, the analysts try to determine how the system performs on the range of possible environments on which it may be used.

Question:In all cases, a network must use a ____, which is a set of standards that govern network data transmission.

Question:Which of the following is true regarding the context diagram?

Question:The primary deliverable for the conceptual data-modeling step within the analysis phase is an entity-relationship diagram.

Question:When displaying textual information, use abbreviations and acronyms as often as possible.

Question:In the accompanying figure, a ____ is a field or combination of fields that uniquely and minimally identifies a particular member of an entity.

Question:In a ____, a single communication path connects the network server, departmental servers, workstations, and peripheral devices.

Question:____ is a widely used method of visualizing and documenting an information system.

stion:A data ____, which is a framework for organizing and storing data, consists of one or more files or tables.

Question:A use case participates in relationships with actors, not other use cases.

Question:Which of the following is a true statement?

Question:A single occurrence of an entity type defines