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Exam SAP C_ABAPD_2309 Collection Pdf & Latest C_ABAPD_2309 Exam Dumps

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SAP C_ABAPD_2309 Exam Syllabus Topics:

Topic
Details

Topic 1

Object-oriented design: It measures your knowledge about encapsulation, upcast, inheritance, polymorphism, and interfaces. Moreover, the topic evaluates your knowledge about constructor calls, Exception classes, and singleton pattern.

Topic 2

ABAP RESTful Application Programming Model: This topic explains the ABAP Restful Application Programming model, ABAP development, and the architecture of the ABAP Restful Application Programming model.

Topic 3

SAP clean core extensibility and ABAP cloud: The topic explains extension pattern, extension rules, ABAP cloud development, and ABAP cloud rules.

Topic 4

ABAP SQL and code pushdown: It discusses ABAP SQL, arithmetic expressions, manage dates, and create joins.

Topic 5

ABAP core data services and data modeling: It focuses on Core Data Services (CDS) views, SAP HANA database tables, foreign key relationships, and annotations.

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SAP Certified Associate - Back-End Developer - ABAP Cloud Sample Questions (Q82-Q87):

NEW QUESTION # 82

When accessing the subclass instance through go_super, what can you do? Note: There are 2 correct answers to this question.

A. Call inherited public redefined methods.
B. Call a subclass specific public method
C. Access the inherited public components.
D. Access the inherited private components.

Answer: C,D

Explanation:
Explanation
When accessing the subclass instance through go_super, you can do both of the following:
Access the inherited private components: A subclass inherits all the private attributes and methods of its superclass, unless they are explicitly overridden by the subclass. Therefore, you can access the inherited private componentsof the superclass through go_super, as long as they are not hidden by other attributes or methods in the subclass12.
Access the inherited public components: A subclass inherits all the public attributes and methods of its superclass, unless they are explicitly overridden by the subclass. Therefore, you can access the inherited public components of the superclass through go_super, as long as they are not hidden by other attributes or methods in the subclass12.
You cannot do any of the following:
Call a subclass specific public method: A subclass does not have any public methods that are not inherited from its superclass. Therefore, you cannot call a subclass specific public method through go_super12.
Call inherited public redefined methods: A subclass does not have any public methods that are redefined from its superclass. Therefore, you cannot call inherited public redefined methods through go_super12.
References: 1: Object Oriented - ABAP Development - Support Wiki 2: Inheritance and Instantiation - ABAP Keyword Documentation

NEW QUESTION # 83
Class super has subclass sub. Which rules are valid for the sub constructor? Note: There are 2 correct answers to this question.

A. The constructor of super must be called before using any components of your own instance.
B. Import parameters can only be evaluated after calling the constructor of super.
C. Events of your own instance cannot be raised before the registration of a handler in super.
D. The method signature can be changed.

Answer: A,D

Explanation:
Explanation
The sub constructor is the instance constructor of the subclass sub that inherits from the superclass super. The sub constructor has some rules that it must follow when it is defined and implemented12. Some of the valid rules are:
The method signature can be changed: This is true. The sub constructor can have a different method signature than the super constructor, which means that it can have different input parameters, output parameters, or exceptions. However, the sub constructor must still call the super constructor with appropriate actual parameters that match its interface12.
The constructor of super must be called before using any components of your own instance: This is true.
The sub constructor must ensure that the super constructor is called explicitly using super->constructor before accessing any instance components of its own class, such as attributes or methods. This is because the super constructor initializes the inherited components of the subclass and sets the self-reference me-> to the current instance12.
You cannot do any of the following:
Import parameters can only be evaluated after calling the constructor of super: This is false. The sub constructor can evaluate its own import parameters before calling the constructor of super, as long as it does not access any instance components of its own class. For example, the sub constructor can use its import parameters to calculate some values or check some conditions that are needed for calling the super constructor12.
Events of your own instance cannot be raised before the registration of a handler in super: This is false.
The sub constructor can raise events of its own instance before calling the constructor of super, as long as it does not access any instance components of its own class. For example, the sub constructor can raise an event to notify the consumers of the subclass about some status or error that occurred during the initialization of the subclass12.
References: 1: Inheritance and Constructors - ABAP Keyword Documentation - SAP Online Help 2: Using Static and Instance constructor methods | SAP Blogs

NEW QUESTION # 84
You have the following CDS definition:

Which of the following ON conditions must you insert in place of "???"?

A. ON Sprojection Camer=Source2 carrier_id
B. ON Sprojection. Carrier Source2.carrier
C. ON Z_Sourcel.camer_id = 7_Source2 carrier_id
D. ON Sprojection.carrier_id=Z_Source2.carrier_id

Answer: D

Explanation:
The correct ON condition that must be inserted in place of "???" is:
ON Sprojection.carrier_id=Z_Source2.carrier_id
This ON condition specifies the join condition between the CDS view Sprojection and the database table Z_Source2. The join condition is based on the field carrier_id, which is the primary key of both the CDS view and the database table. The ON condition ensures that only the records that have the same value for the carrier_id field are joined together1.
The other options are not valid ON conditions, because:
* A. ON Z_Sourcel.camer_id = 7_Source2 carrier_id is not valid because Z_Sourcel and 7_Source2 are not valid data sources in the given code. There is no CDS view or database table named Z_Sourcel or
7_Source2. The correct names are Z_Source1 and Z_Source2. Moreover, the field camer_id is not a valid field in the given code. There is no field named camer_id in any of the data sources. The correct name is carrier_id.
* B. ON Sprojection Camer=Source2 carrier_id is not valid because Sprojection and Source2 are not valid data sources in the given code. There is no CDS view or database table named Sprojection or Source2. The correct names are Sprojection and Z_Source2. Moreover, the field Camer is not a valid field in the given code. There is no field named Camer in any of the data sources. The correct name is carrier_id. Furthermore, the ON condition is missing the dot (.) operator between the data source name and the field name, which is required to access the fields of the data source1.
* C. ON Sprojection. Carrier Source2.carrier is not valid because Carrier and carrier are not valid fields in the given code. There is no field named Carrier or carrier in any of the data sources. The correct name is carrier_id. Moreover, the ON condition is missing the dot (.) operator between the data source name and the field name, which is required to access the fields of the data source1.
References: 1: ON Condition - ABAP Keyword Documentation

NEW QUESTION # 85
In a subclass subl you want to redefine a component of a superclass superl. How do you achieve this? Note: There are 2 correct answers to this question.

A. You implement the redefined component in subl.
B. You add the clause REDEFINITION to the component in superl.
C. You implement the redefined component for a second time in superl.
D. You add the clause REDEFINITION to the component in subl.

Answer: A,D

Explanation:
To redefine a component of a superclass in a subclass, you need to do the following12:
You add the clause REDEFINITION to the component declaration in the subclass. This indicates that the component is inherited from the superclass and needs to be reimplemented in the subclass. The redefinition must happen in the same visibility section as the component declaration in the superclass. For example, if the superclass has a public method m1, the subclass must also declare the redefined method m1 as public with the REDEFINITION clause.
You implement the redefined component in the subclass. This means that you provide the new logic or behavior for the component that is specific to the subclass. The redefined component in the subclass will override the original component in the superclass when the subclass object is used. For example, if the superclass has a method m1 that returns 'Hello', the subclass can redefine the method m1 to return 'Hi' instead.
You cannot do any of the following:
You implement the redefined component for a second time in the superclass. This is not possible, because the superclass already has an implementation for the component that is inherited by the subclass. The subclass is responsible for providing the new implementation for the redefined component, not the superclass.
You add the clause REDEFINITION to the component in the superclass. This is not necessary, because the superclass does not need to indicate that the component can be redefined by the subclass. The subclass is the one that needs to indicate that the component is redefined by adding the REDEFINITION clause to the component declaration in the subclass.

NEW QUESTION # 86
when you attempt to activate the definition, what will be the response?

A. Activation error because the field types of the union do not match
B. Activation error because the key fields of the union do not match
C. Activation successful
D. Activation error because the field names of the union do not match

Answer: D

Explanation:
The response will be an activation error because the field names of the union do not match. This is because the field names of the union must match in order for the definition to be activated. The union operator combines the result sets of two or more queries into a single result set. The queries that are joined by the union operator must have the same number and type of fields, and the fields must have the same names1. In the given code, the field names of the union do not match, because the first query has the fields carrname, connid, cityfrom, and cityto, while the second query has the fields carrname, carrier_id, cityfrom, and cityto.
The field connid in the first query does not match the field carrier_id in the second query. Therefore, the definition cannot be activated.
References: 1: UNION - ABAP Keyword Documentation

NEW QUESTION # 87
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