Sad-4

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