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Home » GAT Subject » Computer Science » Aptitude Test - 91
1.Changes made periodically to a system, after its implementation, is known as system
A. analysis
B. design
C. development
D. analysis
2.The first step in systems Development Life Cycle is
A. database design
B. system design
C. preliminary investigation and analysis
D. database design
3.Nassi - schneiderman charts
A. are being replaced by flowcharts
B. often describe over lapping control structures
C. are made up of boxes within boxes
D. are being replaced by flowcharts
4.Which of the following tools is not used in modeling the new system?
A. decision tables
B. data dictionary
C. data-flow diagrams
D. decision tables
5.A design that consists of a hierarchy of modules; each module has a single entry and a single exit subroutine, is known as
A. hierarchy structure
B. top-down design
C. Tuple
D. hierarchy structure
6.Rapid prototyping proves the quality of a design by
A. having a program simulate the real system
B. having the system analyst present an overview of the design to users, programmers, and consultants
C. having a data flow diagram
D. having a program simulate the real system
7.The black-box concept:
A. is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
B. assumes that the black box is independent
C. assumes that inputs and outputs will remain stable
D. is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
8.Graphic representation of the control logic of processing functions or modules representing a system, is known as:
A. Structured analysis
B. Structured chart
C. Structured English
D. Structured analysis
9.Which of the following is an integrated collection of data with minimum redundancy, so that different applications can use the required data.
A. records
B. file
C. DBMS
D. records
10.Where one has to process all the data records in a file, the best tile organization is
A. Indexed
B. sequential
C. direct access
D. Indexed
11.An open rectangle
A. defines a source or destination of system data
B. identifies data flow
C. represents a process that transforms incoming data flow(s) into outgoing data flows
D. defines a source or destination of system data
12.The feasibilities studied in preliminary investigation is (are):
A. technical feasibility
B. economic feasibility
C. operational feasibility
D. technical feasibility
13.Branch mark programs are best characterized as
A. Simulator programs
B. Hallmarking
C. Actual system programs
D. Simulator programs
14.Conversion method in which users, being used to an old system, continue to use the old system, alongside the new system, is
A. multi processing
B. multitasking
C. parallel run
D. multi processing
15.A programmer reviews the accuracy of an algorithm by _____ it.
A. Analyzing
B. Coding
C. Desk-checking
D. Analyzing
16.Sequential organization
A. means storing records in contiguous blocks according to a key.
B. Stores records sequentially but uses an index to locate records
C. uses an index for each key type
D. means storing records in contiguous blocks according to a key.
17.Which of the following systems implementation approaches should be used if you want to run the old system and the new system at the same time for a specified period?
A. direct
B. pilot
C. phased
D. direct
18.A _____ is software that is designed for drawing diagrams of information systems, writing process specifications, and maintaining data dictionaries.
A. System Development Life Cycle
B. CASE tool
C. Phased Conversion
D. System Development Life Cycle
19.On the feasibility committee, department representatives serve as
A. ready source of information
B. liason to their departments
C. direct users of the new system
D. ready source of information
20.The systems conversion technique of totally removing the existing system and immediately implementing the new system is called a
A. pilot conversion
B. crash conversion
C. phased conversion
D. pilot conversion
21.Which of the following statements is not true
A. at example of a hierarchical data structure is tree
B. pointers are useful in traversing a linked list
C. a checksum digit is used for detecting Errors in data transmission
D. at example of a hierarchical data structure is tree
22.The data base be prepared until
A. the computer has been selected
B. the MIS staff has been acquired and organized
C. the preparation of physical facilities
D. the computer has been selected
23.The system study project includes
A. system analysis
B. system design
C. implementation
D. system analysis
24.Which of the following is not a part of a Data Flow Diagram?
A. disk storage
B. arrow
C. Data store
D. disk storage
25.The first step to the system study project is to
A. define system performance criteria
B. describe information needs
C. staff for the study project
D. define system performance criteria
26.The data stored on a tape or disk file may be recorded in a report form described as
A. a soft copy ledger
B. printer spacing from
C. proof listing
D. a soft copy ledger
27.In Data structure, main characteristic of "ring" is :
A. last, record points to the first record
B. first record points only to the last record
C. many records point to one record
D. last, record points to the first record
28.Which of the following control structures is used in every program?
A. Repetition
B. Selection
C. Sequence
D. Repetition
29.A system design is said to be functionally modular if
A. the system is able to handle all the function of the application
B. each module performs a specific function and can be developed relatively independently by programmers
C. the system makes extensive use of function. keys for maximum user assistance
D. the system is able to handle all the function of the application
30.Difference between Decision - Tables and Decision Trees is (are):
A. value to end user
B. form of representation
C. one shows the logic while other shows the process
D. value to end user
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