3/12/2019
Question 1
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Midterms
Which of the following is BEST for checking for completeness?
Select one:
a. Any of the choices
b. Decision Trees
c. Decision Table
d. Structured English
Question 2
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Provides overview of the system to be designed.
Select one:
a. Relational Diagram
b. None of the choice
c. Context Diagram
d. Procedural Diagram
Question 3
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Which of the following is an entity
Select one:
a. Employee
b. Sell
c. Programmer & Employee
d. All of the choices
e. Programmer
f. Visit
g. Sell & Visit
h. None of the choices
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Question 4
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The following are requirements of a good code EXCEPT
Select one:
a. Meaningful
b. All of the choices
c. Expandable
d. Precise
e. None of the choices
f. Lengthy
Question 5
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In the ER Diagram, relationships are
Select one:
a. Verbs
b. Nouns
c. Adjective
d. None of the choices
Question 6
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Which of the following classification of codes is NOT comprehensive?
Select one:
a. Significant Code
b. Group Classification code
c. Serial number
d. None of the choices
e. Serial number and block codes
f. Block codes
g. Group classification code and significant code
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3/12/2019
Question 7
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Which of the following classification of codes is NOT expandable?
Select one:
a. None of the choices
b. Group Classification code
c. All of the choices
d. Serial number
e. Significant Code
f. Block codes
Question 8
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Logical operators are used in constructing a Structured English, which of the following
is not a logical operator?
Select one:
a. None of the choices
b. AND
c. OR
d. NOT
e. IF
Question 9
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For interactive data input, customized screens are designed for easy data entry. Errors
in data entry are instantly detected by a ________________ during data entry and can
be immediately corrected.
Select one:
a. high speed internet connection
b. database operator
c. validation program
d. desktop computer with high specifications
Question 10
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Which of the following statements is INCORRECT with respect to a Data Dictionary?
Select one:
a. Data dictionary and data source both are the same
b. Is important documentation which would be useful to maintain a system
c. It is a repository of the elements in a system
d. None of the choices
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3/12/2019
Question 11
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Which of the following classification of codes is NOT precise?
Select one:
a. Block codes
b. Significant Code
c. Group Classification code
d. None of the choices
e. Serial number
Question 12
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Question 13
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TRUE OR FALSE: External entities can process data.
Answer: TRUE
To reduce errors in input, it is essential to ______________.
Select one:
a. upgrade the desktop computer used for entering data.
b. migrate the system to online mode.
c. hire a new employee.
d. carefully design the forms used for entering data.
Question 14
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Every member of an entity set is described by its _______________.
Select one:
a. Size
b. Methods
c. Attributes
d. Classes
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3/12/2019
Question 15
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Midterms
Which of the following classification of codes is NOT comprehensive?
Select one:
a. Group Classification code
b. Group Classification code and Significant Code
c. All of the choices
d. Serial number
e. Block codes
f. Serial number and Block codes
g. None of the choices
h. Significant Code
Question 16
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Which of the following does NOT describe Structured English?
Select one:
a. Structured English shows decision structure
b. Structured English is similar to Pascal programming
c. Structured English should be written or follow the programming syntax
rules and convention
d. Structured English should be understandable to the user
Question 17
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If the process p is expanded, the process at the next level will be labeled as
Select one:
a. p.1, p.2, p.3
b. None of the choices
c. p.a, p.b, p.c
d. 1.0, 2.0, 3.0
Question 18
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In the ER Diagram, normally entities are
Select one:
a. Adjective
b. Verbs
c. Nouns
d. None of the choices
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Question 19
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Midterms
TRUE OR FALSE: This method of top down analysis and breaking down DFDs to give
more and more detail is known as splitting.
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Answer: FALSE
Question 20
Which of the following is a valid ER Diagram?
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Select one:
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a.
b.
c.
d.
Question 21
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TRUE OR FALSE: As a guideline in DFD, nouns are used to name an external entity.
Answer: TRUE
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Question 22
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Midterms
Given employee (employee number, salary, department code, supervisor code). What
is the unique relation key.
Select one:
a. Employee number
b. Department code
c. Supervisor code
d. All of the choices
Question 23
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The _____________________ is a catalogue of all data used in an application, their
names, type and their origin.
Select one:
a. Data Flow Diagram
b. Documentation
c. None of the choices
d. System Requirement Specification
e. Data dictionary
Question 24
Given the DFD below:
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Select one:
a. The DFD is incorrect, the symbol of customer and billing system was
interchanged.
b. The DFD is incorrect, there should be a data store in the diagram
c. The DFD is incorrect, data flow violated the rule of 1 input 1 output
d. The DFD is incorrect, the arrow lines are not in order
e. The DFD is correct.
f. None of the choices are correct.
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Question 25
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Midterms
Which one of the following statements is FALSE about data dictionary?
Select one:
a. Updating the data elements means modifying the data dictionary
b. Data dictionary contains the name and description of each data element
c. The data analyst normally maintains the data dictionary.
d. None of the choices
Question 26
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In Entity Relationship, the Student number, Course, Date Enrolled, Gender are
examples of
Select one:
a. Entity
b. Cardinality
c. Tuples
d. Attributes
e. Relationship
Question 27
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Relationship are normalized to ensure that
Select one:
a. When a data item is modified it is modified in all relations where it appears
no inconsistency is there
b. All of the choices
c. None of the choices
d. Collection of relations do not unnecessarily hold duplicate data
e. When data is deleted accidentally, required data is not deleted
f. Simplifies retrieval of required data
Question 28
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A relationship is in 2NF if,
Select one:
a. If key attributes is independent on composite attribute
b. If there are only 2 attributes
c. If duplicate tuples exists
d. It is in 1NF
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Question 29
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Midterms
TRUE OR FALSE: If a DFD is too detailed it will have too many data flows and will be
easy to understand.
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Answer: FALSE
Question 30
Each column in the relation corresponds to _____________
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Select one:
a. Entity set
b. Data of the entity
c. Records
d. An attribute of the entity
Question 31
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A data dictionary is usually developed
Select one:
a. during data gathering stage
b. after designing the database
c. during feasibility analysis
d. when data flow diagram is developed
Question 32
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TRUE or FALSE. Conditions need always to be BINARY.
Answer: FALSE
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Question 33
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Midterms
Which of the following why there is a need for codes?
Select one:
a. For unique identifier
b. For unique identifier and for cross referencing between applications
c. All of the choices
d. For cross referencing between applications
e. For efficient storage and retrieval
f. None of the choices
Question 34
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The following are entities EXCEPT
Select one:
a. None of the choices
b. Conduct
c. Collect
d. Officer
e. All of the choices
f. Collect & Conduct
g. Monthly
h. Volunteer
i. Volunteer & Officer
Question 35
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Question 36
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TRUE OR FALSE: In designing a DFD, start from the broad overview of the system.
Answer: TRUE
TRUE OR FALSE: Data cannot flow from store to external entity.
Answer: TRUE
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Question 37
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In Entity Relationship, a tuple is
Midterms
Select one:
a. an attribute
b. a collection of information
c. another term for database
d. a row of relation
e. a column of relation
f. a table
Question 38
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TRUE or FALSE. For every condition, there should only be 2 actions.
Select one:
True
False
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Question 39
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Midterms
What is the correct Structured English of the following problem?
The University is giving discount to all students. A 50% discount on tuition fee will only
be given to BSIT freshmen students. The rest of non IT students will only get 10%
discount.
Select one:
a. if student year = 1 AND course = BSIT
then discount = 50%
else
discount = 10%
endif
b. if student year = 1
if course = BSIT
else discount = 50%
endif
else
discount = 10%
endif
c. if student year = 1
Then discount = 50%
else
Discount = 10%
endif
d. if student year = 1 AND course = BSIT
then discount = 50%
endif
else
discount = 10%
endif
Question 40
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This gives a single point reference of data repository of an organization.
Select one:
a. None of the choices
b. Data Flow Diagram
c. Data dictionary
d. Documentation
e. System Requirement Specification
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3/12/2019
Question 41
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Midterms
The objective of using structured English is to
Select one:
a. develop algorithms corresponding to processes in a DFD
b. describe computational procedures reasonably precisely which can be
understood by any user
c. expand a DFD so that a user can understand it
d. ease writing programs for DFDs
Question 42
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TRUE or FALSE. A decision table is said to be complete if it has at least 2 possible
distinct elementary rules.
Select one:
True
False
Question 43
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A _________________ DFD is similar to a document flow diagram.
Select one:
a. None of the choices
b. Relational
c. Logical
d. Physical
Question 44
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The _____________________ is where user presented several alternatives and asked
to type his/her choice.
Select one:
a. keyboard
b. textbox
c. menu
d. screen
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Question 45
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TRUE or FALSE. Use Structured English when there are large number of conditions to
check and logic is complex.
Select one:
True
False
Question 46
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Question 47
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TRUE or FALSE. Use Decision trees when there are many conditions to be tested.
Answer: TRUE
Data dictionary may be used to eliminate redundancy.
Select one:
a. TRUE
b. FALSE
Question 48
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In ____________ data entry, batches of data are formed and entered. They are
checked by a validation program and the corrected records are stored in a file.
Select one:
a. Off-line
b. Mobile
c. On-line
d. Real-time
Question 49
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The ______________ data entry is suitable if the number of records is very large.
Select one:
a. Off-line
b. Mobile
c. On-line
d. Real-time
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Question 50
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The Student Grading Information System needs to compute for the average grade on
10 quizzes of a student. What is the correct Structured English?
Select one:
a. for quiz = 1 to quiz = 10 do
{
Total Score = + Score
}
end for
Average = Total Score / 10
b. for quiz = 1 to quiz = 10 do
{
Total Score = Total Score + Score
}
end for
Average = Total Score / 10
c. for quiz >= 1 to quiz <= 10 do
{
Total Score = Total Score + Score
Average = Total Score / 10
}
end for
d. for quiz = 1 to quiz = 10 do
{
Total Score = Total Score + Score
Average = Total Score / 10
}
end for
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