Short Qz3 (8/10) MAPAPA-ISIP NA LANG AKO?! ANO TO?
In DFD, the symbol use to represent a data store is
Parallel lines (SURE NA SURE AKO PROMISE)
Loops are allowed in DFD.
False (SURE NA SURE AKO PROMISE)
Data cannot flow from process to external entity.
False
Data cannot flow from store to external entity.
True
In a DFD, a process is represented by a
Circle (SURE NA SURE AKO PROMISE)
Keep the number of processes at each level ____.
Less than 7
If a DFD is too detailed it will have too many data flows and will be easy to understand.
False (SURE ATA AKO?!)
Given the DFD below: (CANNOT COPY DFD DIAGRAM)
The DFD is incorrect, the arrow lines are not in order (I THINK MALI TO?!)
This method of top down analysis and breaking down DFDs to give more and more detail is known as
splitting.
False
Provides overview of the system to be designed.
Context Diagram
Short Qz4 (10/10) SOBRANG DALI NETO PROMISE!
Which of the following classification of codes is NOT expandable?
None of the choices
The following are requirements of a good code EXCEPT
Lengthy
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.
validation program
Which of the following classification of codes is NOT precise?
None of the choices
A data dictionary is usually developed
when data flow diagram is developed
A data element in a data dictionary may have
no value
Which of the following classification of codes is NOT comprehensive?
Serial number and block codes
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.
Off-line
The _____________________ is where user presented several alternatives and asked to type his/her
choice.
screen
Which one of the following statements is FALSE about data dictionary?
The data analyst normally maintains the data dictionary.
MIDTERM EXAM (/50) nakaka-pagod din pala -_TRUE or FALSE. The for keyword is a loop structure.
True
Data cannot flow from store to external entity.
True
Logical operators are used in constructing a Structured English, which of the following is not a logical
operator?
If
What is metadata?
Data about data
Data cannot flow from process to external entity.
False
The following are requirements of a good code EXCEPT
Lengthy
Which of the following classification of codes is NOT expandable?
None of the choices
TRUE OR FALSE: External entities can process data.
True
Decision trees are drawn _________________
From Left to Right
The main models of interactive data input are
Menus, Templates, Commands
TRUE or FALSE. Structured English and Decision Table are procedural.
False
A data flow diagram
Starts from a broad overview and expand it to a hierarchy of detailed diagrams
The _____________________ is where user presented several alternatives and asked to type his/her
choice.
Screen
The Student Grading Information System needs to compute for the average grade on 10 quizzes of a
student. What is the correct Structured English?
for quiz = 1 to quiz = 10 do
{
Total Score = Total Score + Score
}
end for
Average = Total Score / 10
Loops are allowed in DFD.
False
Which of the following does NOT describe Structured English?
Structured English should be written or follow the programming syntax rules and convention
TRUE OR FALSE: Two data stores cannot be connected by a data flow
True
Which of the following classification of codes is NOT expandable?
None of the choices
If the process p is expanded, the process at the next level will be labeled as
p.1, p.2, p.3
Provides overview of the system to be designed.
Context Diagram
Which of the following statements is INCORRECT with respect to a Data Dictionary?
Data dictionary and data source both are the same
TRUE or FALSE. Use Structured English when there are large number of conditions to check and logic is
complex.
False
A decision table should be used
When set of rules on conditions with action that needs to apply
A data element in a data dictionary may have
no value
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.
Off-line
Decision table includes
All of the choices
Which of the following why there is a need for codes?
All the choices
TRUE OR FALSE: In designing a DFD, start from the broad overview of the system.
True
A _________________ DFD is similar to a document flow diagram.
Physical
The objective of using structured English is to
describe computational procedures reasonably precisely which can be understood by any user
Given the DFD below:
The DFD is incorrect, the arrow lines are not in order
TRUE or FALSE. A decision table is said to be complete if it has at least 2 possible distinct elementary
rules.
False
To reduce errors in input, it is essential to ______________.
carefully design the forms used for entering data.
Which of the following is NOT an advantage of using decision table?
Easy detection of program error
This gives a single point reference of data repository of an organization.
Data dictionary
A rectangle represents
An external entity
The _____________________ is a catalogue of all data used in an application, their names, type and
their origin.
Data dictionary
Data dictionary may be used to eliminate redundancy.
True
Which of the following is BEST for checking for completeness?
Decision Table
TRUE OR FALSE: As a guideline in DFD, nouns are used to name an external entity.
True
Which of the following classification of codes is NOT concise?
Group Classification code and Significant Code
Which one of the following statements is FALSE about data dictionary?
The data analyst normally maintains the data dictionary.
The ______________ data entry is suitable if the number of records is very large.
Off-line
If a DFD is too detailed it will have too many data flows and will be easy to understand.
False
TRUE or FALSE. The while keyword is a selection structure.
True
Which of the following classification of codes is NOT comprehensive?
Serial number and Block codes
TRUE OR FALSE: Data can flow from process to process
False
Keep the number of processes at each level ____.
Less than 7
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.
validation program
Which of the following is BEST in sequencing conditions by priority?
Decision Trees