Archives: Questions
Answer & Solution
Answer:Option 4
Solution:
- Replacing the presentation & application toolkit are the portability concerns founded in Seeheim model.
- The Seeheim model separates the dialogue structure from the presentation of the user interface.
- The presentation part specifies the layout of the input and output and the dialogue part specifies the logics and functionality of these input-and output-elements.
The portability concerns founded in Seeheim model are-
- Replacing the presentation toolkit
- Replacing the application toolkit.
Answer & Solution
Answer:Option 4
Solution:
- The main task accomplished by the user Compose document, Create a spread sheet, Send mail.
- To create a new document, presentation, or spreadsheet from scratch (rather than upload It), choose Create New*Document, Create New. Presentation, or Create New*Spreadsheet.
- If you created the file from scratch, give it a name. Choose File. Rename from the menu bar in Google Does (not the menu bar at the top of your browser window) and type a name.
- Type Information In the document, presentation, or spreadsheet as usual.
Answer & Solution
Answer:Option 1
Solution:
- Presentation are the functions that any system with a user interface must provide.
- Presentation and Application are the functions that any system with a user interface must provide.
- Access control maybe provided to let only authorized users join the interface and add applications to it.
- Moreover, the commands of the users who are allowed to join may be restricted.
- For instance, some users may be prevented from inputting any command, which is useful in a presentation.
Answer & Solution
Answer:Option 1
Solution:
- The Hibernate system is widely used for mapping from Java objects to relations.
- In Hibernate, the mapping from each Java class to one or more relations is specified in a mapping file.
- The mapping file can specify, for example, that a Java class called Student is mapped to the relation student, with the Java attribute ID mapped to the attribute student.ID, and so on.
- Information about the database, such as the host on which it is running, and user name and password for connecting to the database, etc., are specified in a properties file.
- The program has to open a session, which sets up the connection to the database.
- Once the session is set up, a Student object stud created in Java can be stored in the database by invoking session.save(stud).
- The Hibernate code generates the SQL commands required to store corresponding data in the student relation.
Answer & Solution
Answer:Option 4
Solution:
- The Data access layer, which provides the interface between the business-logic layer and the underlying database.
- Many applications use an object-oriented language to code the business-logic layer, and use an object-oriented model of data, while the underlying database is a relational database.
- In such cases, the data-access layer also provides the mapping from the object-oriented data model used by the business logic to the relational model supported by the database.
- In the simplest scenario, where the business-logic layer uses the same data model as the database, the data-access layer simply hides the details of interfacing with the database.
Answer & Solution
Answer:Option 1
Solution:
- The Business logic layer provides a high-level view of data and actions on data.
- The business logic layer contains objects that execute the business functions.
- The Command pattern should be considered to implement these objects.
- With the Command pattern, each use case in the requirements document is implemented as a separate command or set of commands executed in the business logic layer.
- The business-logic layer of an application for managing a university may provide abstractions of entities such as students, instructors, courses, sections, etc., and actions such as admitting a student to the university, enrolling a student in a course, and so on.
- The code implementing these actions ensures that business rules are satisfied; for example the code would ensure that a student can enroll for a course only if she has already completed course prerequisites, and has paid her tuition fees.
Answer & Solution
Answer:Option 2
Solution:
- Presentation layer deals with user interaction.
- The presentation layer transforms data into the form that the application accepts.
- This layer formats and encrypts data to be sent across a network.
- The screens are using information both from components and from data stored in legacy system.
Answer & Solution
Answer:Option 1
Solution:
- Memory address refers to the successive memory words and the machine is called as word addressable.
- In some computers , the smallest addressable unit of information is a memory word .
- Successive memory addresses refer to successive memory words , and the machine is called word addressable .
- It directly accessible addressable registers in a computer.
Answer & Solution
Answer:Option 2
Solution:
- Part Whole Decomposition unit operation is used in Model view controller.
- The Model View Controller (MVC) design pattern specifies that an application consist of a data model, presentation information, and control information.
- The pattern requires that each of these be separated into different objects.
- MVC is more of an architectural pattern, but not for complete application.
- MVC mostly relates to the UI / interaction layer of an application.
0 thoughts on “All Subject Comments” >> Read here