Structured English is a
1.structured programming language
2.description of processes in simple English
3.method of describing computational procedures reasonably precisely in English
4.natural language based algorithmic language
A code is useful to represent a key field because
1.it is a concise representation of the field
2.it is usually done by all
3.it is generally a good idea
4.it is needed in database design
A data dictionary has information about
1.every data element in a data flow
2.only key data element in a data flow
3.only important data elements in a data flow
4.only numeric data elements in a data flow
A decision table is
1.a truth table
2.a table which facilitates taking decisions
3.a table listing conditions and actions to be taken based on the testing of conditions
4.a table in a Decision Support System
A decision table is preferable when the number of
1.conditions to be checked in a procedure is small
2.conditions to be checked in a procedure is large
3.actions to be carried out are large
4.actions to be carried out are small
A modulus-11 check digit is used to detect error in
1.alphanumeric codes
2.numeric codes
3.hexadecimal codes
4.serial number code
A record total uses
1.batch totals of selected fields
2.count of numbers of records
3.modulus-11 check digit sum of all fields
4.total of selected fields of a record
A rule in a limited entry decision table is a
1.row of the table consisting of condition entries
2.row of the table consisting of action entries
3.column of the table consisting of condition entries and the corresponding action entries
4.columns of the tables consisting of conditions of the stub
A-against an action in an action row signifies that the
1.action is not to be taken
2.action is to be taken
3.action is important
4.action is not important
An extended entry decision table is
1.very difficult to understand
2.quite concise compared to a limited entry decision table developed for the same task
3.large compared to a limited entry table developed for the same task
4.is not very often used
By metadata we mean
1.very large data
2.data about data
3.data dictionary
4.meaningful data
By the term "comprehensive code" we understand that the code
1.conveys information on item being coded
2.is of small length
3.can add new item easily
4.includes all relevant characteristics of item being coded
By the term "meaningful code†we understand that the code
1.conveys information on item being coded
2.is of small length
3.can add new item easily
4.includes all relevant characteristics of item being code
Data inputs which required coding are
1.fields which specify prices
2.key fields
3.name fields such as product name
4.fields which are of variable length
Decision table "test2" is
1.really incomplete
2.complete
3.apparently incomplete
4.apparently complete
Decision table description of data processing is
1.non-procedural specification
2.procedural specification
3.purely descriptive specification
4.very imprecise specification
Decision tables are better then Decision trees when
1.Conditions are to be isolated from actions in a word statement
2.Condition sequences are to be found from a word statement
3.Logical correctness of a word statement is to be established
4.Large number of actions is to be performed
Decision Tables are preferred when
1.Too many conditions need to be tested
2.Sequencing of testing conditions is important
3.When there are many loops to be performed
4.When too many actions are to be taken
Decision Trees are preferred when
1.Too many conditions need to be tested
2.Sequencing of testing conditions is important
3.When there are many loops to be performed
4.When too many actions are to be taken
Decision trees are superior to decision tables when
1.The number of conditions to be tested is very large
2.When sequence of testing conditions is not particularly important
3.When sequence of testing conditions is not particularly important
4.When a large number of actions are to be specified
Errors occur more often when
1.data is entered by users
2.data is entered by operators
3.when data is handwritten by users and entered by an operator
4.the key board design is bad
For modulus-11 check digit to detect a single transcription errors
1.weights should all be distinct
2.weights may all be equal and > 0
3.weights should be less than 8
4.weights should all be > 0 and distinct
If records are out-of-order then error may be detected by
1.batch control totals
2.radix check
3.sequence number check
4.range check
In "test 4" missing rule is:
1.NYNN
2.NYYN
3.YYNN
4.YNYN
In "test 4" the contradictory actions are:
1.A1, A3
2.A1, A2
3.A2, A3
4.A2, I
In a limited entry decision table a-entry against a condition signifies that
1.the outcome of testing the condition is irrelevant
2.it is an important condition
3.the condition should be tested
4.the condition is a Boolean condition
In a limited entry decision table the action entries
1.list X or - corresponding to actions to be executed
2.list the conditions to be tested
3.have Y or N or - entries
4.list the actions to be taken
In a limited entry decision table the action stub
1.lists X or - corresponding to actions to be executed
2.lists the conditions to be tested
3.has Y or N or - entries
4.lists the actions to be taken
In a limited entry decision table the condition entries
1.list X or - corresponding to actions to be executed
2.list the conditions to be tested
3.have Y or N or - entries
4.list the actions to be taken
In interactive data input a menu is used to
1.enter new data
2.add/delete data
3.select one out of many alternatives often by a mouse click
4.detect errors in data input
In on-line data entry it is possible to
1.Give immediate feedback if incorrect data is entered
2.Eliminate all errors
3.Save data entry operators time
4.Eliminate forms
In payroll record a reasonable inter-field relationship check is to relate salary field with
1.age field
2.department field
3.designation field
4.increment field
In significant codes some or all parts of the code
1.are meaningful
2.are usable
3.are significant
4.represent values
In the following word statement the conditions are: "if a student gets 50 marks or more in mathematics and 40 marks or more in English he passes the examination, otherwise he fails"
1.student passes the examination
2.student fails the examination
3.student gets 50 marks or more in mathematics
4.student mathematics marks >= 50 and student English marks >= 40
It is necessary to carefully design data input to a computer based system because
1.it is good to be careful
2.the volume of data handled is large
3.the volume of data handled is small
4.data entry operators are not good
Logical correctness of a specifications can be systematically checked by
1.Using decision trees
2.Using structured English
3.Using DFD’s
4.Using decision tables
Modulus-11 check digit for the code 45672 is
1.0
2.1
3.2
4.3
Modulus-17 check character for the hexadecimal code AB4567 is
1.F
2.D
3.1
4.0
Radix check for a field representing year is
1.possible
2.not possible
3.not relevant
4.may be tried
Reasonableness checks for monthly mess bill of a student if daily rate is Rs. 40 is
1.1200
2.12000
3.120
4.2400
Rule R1 is interpreted as follows:
1.If C1 is TRUE and C2 is FALSE then perform action A2
2.If C1 is TRUE and C2 is FALSE then perform action A1 and then action A2
3.If C1 is TRUE and C2 is FALSE then perform action A3 and then action A1
4.If C1 is TRUE and C2 is FALSE then perform action A1 and then action A3
Rule R3 is interpreted as follows:
1.If C1 is TRUE and C2 is TRUE then perform action A1 and A2
2.If C1 is TRUE or C2 is TRUE then perform action A3
3.If C1 is TRUE and C2 is TRUE then perform action A1 or A2
4.If C1 is TRUE and C2 is TRUE then perform action A3
Structured English description of data processing is a
1.non-procedural specification
2.procedural specification
3.purely descriptive specification
4.very imprecise specification
Structured English is preferred when
1.Too many conditions need to be tested
2.Sequencing of testing conditions is important
3.When there are many loops to be performed
4.When too many actions are to be taken
The actions in the action stub of a limited entry decision table
1.must be in sequential order
2.must be in the order in which they are to be tested
3.may be in any order
4.must be in the order in which they are to be executed
The conditions in the condition stub of a limited entry decision table
1.must be in sequential order
2.must be in the order in which they are to be tested
3.may be in any order
4.must be in the order in which they are to be executed
The decision table "test 3" is
1.incomplete
2.ambiguous
3.incorrect
4.has redundancies
The decision table given in answer (a) of question 9.4.3 is
1.incomplete
2.apparently ambiguous
3.has contradictory specifications
4.logically complete
The objective of using decision trees is to
1.Expand a DFD so that a user can understand it
2.To specify sequence of conditions to be tested and actions to be taken
3.Describe a computational procedure that can be easily understood by a person
4.Use it as a tool in decision support system
The objective of using structured English is to
1.describe computational procedures reasonably precisely which can be understood by any user
2.expand a DFD so that a user can understand it
3.develop algorithms corresponding to processes in a DFD
4.ease writing programs for DFDs