Question 1

In a DFD,a "bubbles" is also known as a

Accepted Answer

In a DFD, a "bubble" represents a transformation process, which is a specific activity or task that transforms inputs into outputs. Transformation processes can be represented by circles or rectangles in a DFD. Data stores represent a place where data is stored, data flows represent the movement of data between processes and data destinations are the ultimate recipients of data flows.

Question 2

Graphical representations of information are often supplemented by

Accepted Answer

Graphical representations of information can be helpful, but they often need to be supplemented with narrative descriptions to provide context, clarify details, and explain any complex relationships or concepts. Relevant e-mail communications, logic charts, and oral descriptions from management may also be useful, but they are not always necessary or sufficient to supplement graphical representations.

Question 3

In a data flow diagram of the customer payment process,"update receivables" will appear above or in

Accepted Answer

In a data flow diagram, processes are represented by circles or rounded rectangles. "Update receivables" is a process, so it appears in a circle.

Question 4

In general,a data destination will be shown by

Accepted Answer

A data destination is where data is output or sent to, therefore an arrow pointing in is the most appropriate symbol to indicate this. Option A indicates a data source, C indicates bi-directional flow, and D is not a commonly used symbol to indicate a data destination.

Question 5

A DFD created at the highest-level or summary view is referred to as a

Accepted Answer

A context diagram is used to depict the highest-level view of a system, focusing on the interactions between the system and its external entities. It shows the inputs and outputs of the system, and helps to clarify the scope of the system being studied.

Question 6

Preimer Life Company is a life insurance company that collects,stores,prepares and provides customerized life insurance policy to customers in the Midwest.When a customer's information is received,it is recorded in a database and a ticket is provided to the policy underwriter .When the life insurance policy is issued,the database is updated so that it always reflects the correct amount of life insurance coverage and the length of the policy available to the customers.In a data flow diagram,which type of symbol would be used to represent the system processing customer's information?

Accepted Answer

The symbol used to represent the system processing customer's information is a rectangle with rounded corners, which denotes a process in a data flow diagram. Option B shows the correct symbol for the process of recording customer information in the database. The other options show symbols that do not represent a process.

Question 7

In a payroll processing DFD,the "prepare reports" activity will be represented by ________,the "employee payroll file" will be represented by ________,and the "management" will be represented by ________.

Accepted Answer

In a Data Flow Diagram (DFD), activities or processes are represented by circles or ovals, data stores (like the employee payroll file) are represented by two horizontal lines, and external entities (like management) are represented by squares.

Question 8

The Sarbanes-Oxley Act requires independent auditors to

Accepted Answer

The Sarbanes-Oxley Act requires independent auditors to understand a client's system of internal controls in order to assess the risk of material misstatement in the financial statements. The other options mentioned are not specific requirements of the Act.

Question 9

Which of the following is not a true statement?

Accepted Answer

This statement is not true as there are software packages available that make it easy to prepare and revise data flow diagrams and flowcharts.

Question 10

In a data flow diagram of the customer payment process,"Customer" will appear above or in

Accepted Answer

In a data flow diagram (DFD), "Customer" represents an external entity interacting with the system, and external entities are depicted as squares or rectangles.

Question 11

A data flow diagram

Accepted Answer

A data flow diagram is a graphical representation of how data moves within an organization, showing its origin, destination, and the individual steps in between. The diagram illustrates how data flows between processes, data stores, and external entities. It is primarily used in system analysis and design to document business processes and data requirements. Options B, C, and D describe other types of diagrams used in information systems, but they do not match the description of a data flow diagram.

Question 12

In a customer payment processing DFD,the "update receivables" activity will be represented by ________,the "accounts receivable file" will be represented by ________,and the "credit manager" will be represented by ________.

Accepted Answer

In a DFD, activities are represented by circles, files are represented by two horizontal lines, and people or entities are represented by a square. Therefore, "update receivables" activity will be represented by a circle, the "accounts receivable file" will be represented by two horizontal lines, and the "credit manager" will be represented by a square. The best choice among the given options is D because it correctly represents each element in the DFD.

Question 13

In preparing a DFD,when data are transformed through a process,the symbol used should be

Accepted Answer

In Data Flow Diagrams (DFDs), a process that transforms data is represented by a circle (or sometimes a rounded rectangle). This symbol is used to depict the transformation of data inputs into outputs through a specific process.

Question 14

Most processes on a DFD can be identified by

Accepted Answer

Most processes on a DFD involve the transformation of data, so they typically have data flows going both into and out of the process. While some processes may have data in-flows or data out-flows only, it is more common for processes to involve both. The presence or absence of a data store after a process is not a defining characteristic of a process.

Question 15

In a DFD,a "data sink" is also known as a

Accepted Answer

A data sink is a component in a DFD that represents the final destination of data, where it is consumed but not altered. It is also known as a data destination.

Question 16

Preimer Life Company is a life insurance company that collects,stores,prepares and provides customerized life insurance policy to customers in the Midwest.When a customer's information is received,it is recorded in a database and a ticket is provided to the policy underwriter .When the life insurance policy is issued,the database is updated so that it always reflects the correct amount of life insurance coverage and the length of the policy available to the customers.In a data flow diagram,which type of symbol would be used to represent policy underwriters?

Accepted Answer

Choice A) represents a process symbol which is appropriate for policy underwriters as they are responsible for reviewing and processing customer information to issue life insurance policies. Option B) represents a data store symbol which is used to represent a physical or virtual storage of data. Option C) represents a data flow symbol which shows the movement of data between processes or data stores. Option D) represents a terminator symbol which depicts the source or destination of data flow.

Question 17

In a data flow diagram of the customer payment process,"Customer payment" will appear above or in

Accepted Answer

The answer of In a data flow diagram of the...

Question 18

All of the following are guidelines for preparing data flow diagrams except

Accepted Answer

The correct guideline for preparing data flow diagrams is to show the most detail in the lowest-level DFDs, not the highest-level. The highest-level DFD (context diagram) provides a summary view, and detail increases with each lower level.

Question 19

More than one arrow is needed between symbols on a DFD if

Accepted Answer

Multiple arrows are needed when data elements flow at different times, indicating different processes or states in the system.

Question 20

The passage of the Sarbanes Oxley Act

Accepted Answer

The Sarbanes Oxley Act made documentation skills even more important, requires public companies to prepare an annual internal control report, and mandates that auditors must be able to prepare, evaluate and read documentation tools such as flowcharts. Therefore, all of the options (A, B, and C) are correct.

Quiz 3: Systems Documentation Techniques