IS 316 Review
On a Web page, the data associated with the control is stored by naming the field, which is transmitted to the server. True False
False
Parallel conversion attempts to combine the best features of parallel and direct conversion, without incurring all the risks. True False
False
Process descriptions may exist on a form but not within a CASE tool repository. True False
False
Process specifications are always produced for input and output operations, such as a read or write operation. True False
False
When two or more APIs are used together they form a GUI. True False
False
Which of these software packages is not an open-source software (OSS)? Microsoft Windows Mozilla Firefox Web browser Apache Web server a Linux operating system
Microsoft Windows (Correct)
It is useful to study other Web sites when designing your own. True False
True
The barrier between an internal and external network is called: a firewall. physical security. encryption software. behavioral security. netlock.
a firewall.
The advantage of building data flow diagrams based on events is that: events are small scale and easy to analyze for input and output. users are familiar with the events within their business and know how the events drive other activities. events fall into one of four categories: read, update, create, delete. events are predictable and lend a high degree of stability to the data flow diagram.
users are familiar with the events within their business and know how the events drive other activities.
Which is not one of the four basic symbols used to chart data movement on data flow diagrams? an oval arrow rectangle with rounded corners open-ended rectangle
an oval
Which is not an objective of designing interfaces? matching the user interface to the task making the user interface efficient generating usable queries appropriate feedback to the interface from users improving productivity
appropriate feedback to the interface from users
Ecommerce protection must be used to prevent security threats from: external users. internal Web users. both external and internal users. extranet users.
both external and internal users.
The code used for pull-down menus in a GUI system is: classification codes. alphabetic deviation codes. block sequence codes. cipher codes. simple sequence codes.
classification codes.
Which doesn't DBMS allow? creation of database classification of database modification of database updating the database retrieval of data
classification of database
What type of computing allows the use of Web services, database services, and application services over the Internet, without having to invest in corporate or personal hardware, software, or software tools? broadcast computing central computing ring computing cloud computing client computing
cloud computing
System maintenance must be performed to: correct software errors. add new features that have never been requested before. remove features that none of the users are using. keep programmers employed.
correct software errors.
Which is not a purpose for coding? keeping track of something classifying information concealing information creating information revealing information
creating information
Which graphically characterize(s) data processes and flows through a business system? data dictionary data flow diagrams structured analysis design
data flow diagrams
What is a way to examine, describe, and document structured decisions? decision table data flow data dictionary database
decision table
The process of taking a logical data model and transforming it into a physical model that is efficient for the most often used tasks is called: referential integrity. normalization. denormalization. data warehousing. online analytic processing.
denormalization.
Which is a type of question/answer interface? dialog box natural language menu summary
dialog box
Value checks are performed for data that is: continuous. discrete. cross-referenced. using a check digit. stored on a master file.
discrete.
The systems analyst can support accurate data entry through achievement of all these broad objectives except: effective screen design. effective and complete data capture. efficient data capture. assuring quality through validation.
effective screen design.
Well-designed input forms and display screens should meet all of the following objectives EXCEPT: effectiveness. accuracy. ease of use. efficiency.
efficiency.
What are the elements that make up an organizational system called? entities events factors relationships
entities
The process of creating a simple data flow diagram fragment for each unique system trigger is called: event modeling. trigger analysis. response cases. CRUD model analysis.
event modeling.
Which of these is not used by analysts when adopting CASE tools? communicating more effectively with users expediting the local area network increasing productivity integrating the work done during life cycle stages
expediting the local area network
Which of these is most closely associated with system control? boundary environment feedback interface
feedback
At what stage do operators and end-users become actively involved in testing? link testing with test data full systems testing with test data program testing with test data full systems testing with live data
full systems testing with test data
Classification codes are used to: group data according to a common characteristic. control the sequence of data by ensuring that a class of codes has all unique values. disguise data within a classification, that is, ensure security for classified data. encrypt data according to a security class. enable users to understand the components or classes of data within a larger code.
group data according to a common characteristic.
Which of the following is a goal of dividing a Web site into a series of Web pages? improve the ease of maintaining the Web site improve the collection of Web metrics improve tracking of page movement by the customer improve the revenue obtained by page marketing
improve the ease of maintaining the Web site
Physical data flow diagrams: include processes for adding, updating, changing and deleting records. are used to model business events, along with their input and output. enable the analyst to better understand the business. include no interface data flow in or out of processes.
include processes for adding, updating, changing and deleting records.
A logical data flow diagram: includes types of programs, such as online or batch. is a model of how the system will be implemented. does not include any primitive processes. is a model of how the business operates.
is a model of how the business operates.
Which is not an effectiveness objective of the database? ensuring that data can be shared among users for a variety of applications ensuring all data required for current and future applications will be readily available allowing the database to evolve and the needs of the users to grow allowing users to construct their personal view of the data without concern for the way the data are physically stored maintaining data that are both accurate and inconsistent
maintaining data that are both accurate and inconsistent
Transaction files: are used when interface data flow exist on data flow diagrams. may be used to link processes that execute at different times. are included to store all derived elements. are required to implement all on-line processes.
may be used to link processes that execute at different times.
Which is not one of three main advantages of a decision tree over a decision table? more correct as a communication tool sequential structure of decision tree branches conditions and actions of decision trees are found on some branches more readily understood
more correct as a communication tool
Which of the following types of interface is the ideal for inexperienced users, requiring no special skills? dialog box natural language command question and answer
natural language
In order to determine the human information requirements using a decision analysis strategy, what must the systems analyst determine? necessary data objectives information data structure
objectives
Which of these is not a characteristic of display screen output? available on a more flexible schedule can be more targeted to the user can be changed through direct interaction ephemeral portable
portable
Which of these characteristics is most important to a systems analyst? communicator problem solver programmer project manager
problem (solver Correct!)
Which of the following is not a business rule? logical inferences mathematical and functional derivations programming language IF statements definitions of business terms
programming language IF statements
Which of the following is an advantage of the client/server model? less customization of applications lower start-up costs provides greater computer power fosters a high managerial level of decision making
provides greater computer power
While cloud computing is not immune to outages, it can spread the risk of service interruption to multiple servers by: providing many redundant sites. allowing sites to back up their own content as often as they would like. connecting to the internet via satellite. providing both database services and Web services.
providing many redundant sites.
Which of the following is used to select data that is mutually exclusive? check box text box text area radio button
radio button
Which of the following Web form controls has the value defined in the Web form, not visible on the Web form? text boxes text areas radio buttons input boxes
radio buttons
In a decision table, contradictions occur when: an important condition is omitted. when the situation cannot occur because there are two or more conditions that cannot occur at the same time. identical sets of alternatives require the same action. rules suggest different actions but satisfy the same conditions.
rules suggest different actions but satisfy the same conditions.
Which code describes an object by its membership in many subgroups? significant-digit codes block sequence codes cipher codes mnemonic codes function codes
significant-digit codes
Which code indicates the approximate order that the data were entered? classification codes alphabetic deviation codes block sequence codes cipher codes simple sequence codes
simple sequence codes
Which graphical user interface screen element is used to select data that has continuous values? check box sliders drop-down list box list box radio button
sliders
Which is a way to use peer reviewers to monitor the system's programming and overall development? systems design systems development structured walkthroughs structure charts
structured walkthroughs
Which is not a possible way to validate input? test for missing data test for correct field length test for accurate character data test for comparison with stored data using check digits
test for accurate character data
The context level data flow diagram depicts: the boundaries of a system. detailed processes that transform the incoming data to information. the system entities and how they are related. computer programs and their files.
the boundaries of a system.
What gets sent to the program when a user clicks on an image map? the name of the image map the number of pixels (relative to the upper left-hand corner) of the cursor within the image the color code of the location of the cursor the x- and y-coordinates of the cursor within the image the location (in pixels) from the upper left hand corner of the entire screen
the x- and y-coordinates of the cursor within the image
A disadvantage of alphabetic derivation codes is that: there is no meaning inherent in the code. there may be names that do not have the minimum required number of consonants in the name or description. there are not enough attributes in the data to form a code. there is no way to obtain information from a part of the code. there is no way to sort on any of the data.
there may be names that do not have the minimum required number of consonants in the name or description.
A problem that occurs with classification codes is that: there may not be enough letters to form a complete code. the classifications may not be secure enough. there may be several groups that have the same first letter. the classifications are not easily understood since they are encrypted. the data may not be recognized as belonging to any classes.
there may be several groups that have the same first letter.
Which of these are reasons for partitioning a system? to keep transactions secure to make it easier to move to a new system to allow the system to be upgraded later to ensure that if the business is sold, the data can be given to the new owners
to keep transactions secure
Which of the following symbols is not used on the context level data flow diagram? rectangle with rounded corners triangle arrow shaded corner square
triangle
A goal of producing process specifications is to: reduce process interactions. build technical specifications for a specific computer language. validate the system design, including data flow diagrams and the data dictionary. design computer input and output processes.
validate the system design, including data flow diagrams and the data dictionary.
Products that assess and report on the potential risks in a system are called: vulnerability management products. intrusion detection products. URL filtering products. firewalls. secure socket layering products.
vulnerability management products.
A CRUD matrix is a tool used to represent where master files are read, updated, created, and deleted within the system. True False
True
A data warehouse is used to organize information for quick and effective queries. True False
True
A use case diagram contains two symbols, the use case and the actor. True or False?
True
Understanding organizational subcultures may help analysts overcome resistance to change. True or False?
True
An external entity may be: a person. another department. another computer system. All of the above.
All of the above.
Process logic may be represented as: structured English. a decision table. a decision tree. a formula. All of the above.
All of the above.
Which of the following helps to achieve the goal of minimal user action? Only enter data that are not already stored on files. Use appropriate default values on screens. Provide keystrokes for selecting pull-down menu options. All of the above. A and C above.
All of the above.
Which of these statements concerning the systems development life cycle is true? Designing the system is the first step in the SDLC. No phase can occur until the previous phase is completed. Although each phase is presented discretely, it is never accomplished as a separate step There is widespread agreement that the SDLC is composed of seven phases.
Although each phase is presented discretely, it is never accomplished as a separate step (Correct!)
Which of the following helps to achieve the goal of standard operation and consistency? Use the same icons for all programs regardless of their function. Cancel a transaction in a consistent way. Change the background color as the user moves from screen to screen in a consistent manner. When using different keys to obtain help from screen to screen within a system, provide the location of the help key message in a consistent line on the screen.
Cancel a transaction in a consistent way.
Which of the following is a rule of thumb used to make the dashboard more attractive and more effective? Create an RSS file for the dashboard. Use a large variety of item types. Use bright colors and bold fonts only for all data to distinguish the dashboard from the other windows. Choose appropriate performance measures for display.
Choose appropriate performance measures for display.
Which is not a guideline for display screen design? Keep the screen simple. Keep the screen presentation consistent. Facilitate user movement among screens. Create an attractive screen. None of the above.
Create an attractive screen.
When creating process specifications, what needs to be done for manual tasks? Create well-defined procedures for employees performing the tasks Replace them with automated processes. Outline the decisions using a decision tree. Nothing, they are not part of processing specifications.
Create well-defined procedures for employees performing the tasks
Which of the following is not a difference between a data warehouse and a traditional database? Data in a data warehouse are organized around major subjects rather than transactions. Data in a data warehouse cover a much longer time frame that transaction data. Data in a data warehouse are organized for rapid updating Data in a data warehouse are organized for fast queries. Data in a data warehouse usually include data from outside sources.
Data in a data warehouse are organized for rapid updating
In order to build decision tables, what does the analyst not need to do? Eliminate any impossible situations. Simplify the table as much as possible. Determine the minimum size of the table Eliminate inconsistencies.
Determine the minimum size of the table
A context level data flow diagram includes many detailed processes representing the computer programs within the system. True or False?
False
A good design guideline is to not use the same graphic image on several Web pages. True False
False
A list box on a graphical user interface is used to perform an action. True False
False
A method for validating credit cards uses a check digit formula called the Kendall formula. True False
False
Active RFID tags are much less reliable because they depend on their own power supply, which may fail. True False
False
An arrow is used to depict an external entity that can give and receive data from the system. True False
False
At the stage of full systems testing with live data, operators and end-users become actively involved in testing. True False
False
Coding affords the ability to distinguish between classes of items. True False
False
Data mining is used to verify or validate patterns that humans are able to make themselves. True False
False
Dynamic Web pages change themselves as the result of the server action. True False
False
Each app on a tablet should have their own gestures that do not relate to the gestures of other apps. This will make it easier for the user to interface with the device. True False
False
Each phase of the system development life cycle is accomplished as a discrete, separate step. True or False?
False
If communication is unimportant, structured English is a viable alternative for decision analysis. True False
False
In an ecommerce system, data is generally entered into the system by the programmer. True False
False
Iteration data dictionary entries become simple structured English statements in a sequence. True False
False
Processes in a rectangle with rounded corners sometimes denote something other than a change in or transformation of data or a system/subsystem. True False
False
Stickiness means that a Web site will continue to create pop-up windows when the pages are closed by the user. True False
False
The Web is a very controlled environment that has a very predictable output for users. True False
False
The first SDLC phase that the analyst enters into is that of determining information requirements for the particular users involved. True or False?
False
The highest level data flow diagram is called Diagram 0. True False
False
User involvement throughout the systems project is of little importance in the successful development of business information systems. True or False?
False
Using Structured Query Language (SQL) is easy for anyone to do since there are no words or commands needed. True False
False
When analysts are hired specifically from outside the business to address information systems issues within a business, they are acting as supporting experts. True or False?
False
When performing a structured walkthrough, the analyst oversees that others adhere to any roles assigned and assures that any activities scheduled are accomplished. True False
False
When structured decisions are not complex, an appropriate technique for analyzing the decision process is the use of semi-structured English. True False
False
While process specifications produce a precise description of what is accomplished, they are not detailed enough to validate the system design. True False
False
Which of the following does not need to be considered when building a Web site? structure HTML expertise graphics navigation promotion
HTML expertise
Which order is correct for the analyst to normalize a data structure? I. Remove all repeating groups and identify the primary key. II. Remove any transitive dependencies. III. All partial dependencies are removed and placed in another relation. III - II - I I - II - III III - I - II II - I - III I - III - II
I - III - II
Which is the correct testing process?I. full systems testing with test dataII. link testing with test dataIII. full systems testing with live dataIV. program testing with test data IV - II - I - III IV - I - II - III II - IV - I - III IV - I - III - II II - IV - III - I
IV - II - I - III
Which is an incorrect guideline for modular programming? Keep each module to a manageable size. Pay particular attention to the critical interfaces. Maximize the number of modules the user needs to modify when making changes. Maintain the hierarchical relationships set up in the top-down phases.
Maximize the number of modules the user needs to modify when making changes.
A graphical user interface display can be made attractive by the use of color and shaded or three-dimensional boxes. True False
True
A logical data flow diagram shows how the business operates. True False
True
A mathematical process of assuring data accuracy involves multiplying each of the digits in the original code by some predetermined weights, summing these results, and then dividing this sum by a modulus number. True False
True
A physical data flow diagram shows how the system will be constructed. True False
True
A rectangle with rounded corners is used to show the occurrence of a transforming process. True False
True
A system should clearly present information to the user by having an appropriate title for each display, minimizing the use of abbreviations, and providing clear user feedback. True False
True
A use case model describes what a system does without describing how the system does it. True or False?
True
An application programming interface is a set of small programs and protocols used like building blocks for building software applications. True False
True
An enterprise resource planning system describes an integrated organizational information system. True or False?
True
An event-response chart may be used to list the variety of events that occur when there are complicated interactions on a Web form. True False
True
Besides the obvious advantage of clarifying the logic and relationships found in human languages, structured English has another important advantage as a communication tool. True False
True
Business analytics (BA) is a term that covers the ideas of using big data along with a variety of quantitatively based analytical tools (such as statistics and predictive modeling) to answer management questions about trends and what-if questions. True False
True
Coded data require less time to enter and reduce the number of items entered. True False
True
Conversion by direct changeover means that, on a specified date, users stop using the old system and the new system is put into use. True False
True
Credit card processing uses a check digit formula called the Luhn formula. True False
True
During disaster planning, redundancy of data provides the key for eliminating single points of failure for servers running Web applications. True False
True
Each external entity is labeled with a noun. True False
True
Looking at bad Web pages can help you design a good site. True False
True
One reason for revealing information through codes is to make the data entry more meaningful. True False
True
Process logic may be represented as either structured English, a decision table, a decision tree, or a formula. True False
True
Process specifications show the decision-making logic and formulas necessary to transform process input data into output. True False
True
Radio frequency identification allows the automatic collection of data using RFID tags or transponders that contain a chip and an antenna.. True False
True
Reducing maintenance costs is a major concern, because software maintenance alone can devour upward of 50 percent of the total data processing budget for a business. True False
True
Security has three interrelated aspects: physical, logical, and behavioral. As long as at least two aspects are in place, the quality of security is considered high. True False
True
Selection data dictionary entries become IF...THEN...ELSE structured English statements. True False
True
Structured walkthroughs fit well within a total quality assurance program when accomplished throughout the systems development life cycle. True False
True
Text analytics can help organizational decision makers realize valuable insights into what customers are thinking about the organization, the values and actions of the company, as well as customer or vendor motivations for beginning, maintaining, improving, or discontinuing a relationship. True False
True
The biggest advantage of the data flow approach lies in the conceptual freedom found in the use of the four symbols. True False
True
The name of the data flow coming out of a process should be different than the name of the data flow going into the process. True False
True
The three primary roles of the systems analyst are as consultant, supporting expert, and change agent. True or False?
True
The top-down approach provides the systems group with a ready made division of users into task forces for subsystems. True False
True
When a system is tested with normal transactions, variations are added, including invalid data used to ensure that the system can properly detect errors. True False
True
Which is the correct choice? Use structured English when not every condition is relevant to every action. Use decision tables when communication to end users is important. Use decision trees when the sequence of conditions and actions is critical. Use decision tables when there are many repetitious actions.
Use decision trees when the sequence of conditions and actions is critical.
Which of these is not a guideline for display screen design? Create an attractive display screen. Facilitate user movement among display screens. Keep the display screen simple. Vary the display screen presentation.
Vary the display screen presentation.
In a CRUD matrix, each row represents the data stores used for each: process. database table. data flow child diagram. activity.
activity.