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C-ABAPD-2309前提条件 & C-ABAPD-2309復習攻略問題

さらに、It-Passports C-ABAPD-2309ダンプの一部が現在無料で提供されています：https://drive.google.com/open?id=1dYYi6hDFAOzwrOuMutnwlokuIM4i_shn

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コンピュータ、ネットワーク、および半導体技術の急速な発展により、人々の市場はますます激しく争われています。証明書を取得するためにC-ABAPD-2309試験に合格すると、より良い仕事を探し、より高い給料を得ることができます。高品質の学習教材を見つけるのにうんざりしている場合は、C-ABAPD-2309試験準備を試すことをお勧めします。 C-ABAPD-2309試験の教材は、他の同じ学習製品よりも品質が高いだけでなく、C-ABAPD-2309試験に簡単に合格できることを保証できるためです。

>> C-ABAPD-2309前提条件 <<

C-ABAPD-2309復習攻略問題、C-ABAPD-2309試験解答

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SAP C-ABAPD-2309 認定試験の出題範囲：

トピック	出題範囲
トピック 1	オブジェクト指向設計：カプセル化、アップキャスト、継承、ポリモーフィズム、インターフェースに関する知識を測定します。さらに、コンストラクター呼び出し、例外クラス、シングルトンパターンに関する知識も評価します。
トピック 2	ABAP RESTful アプリケーションプログラミングモデル: このトピックでは、ABAP RESTful アプリケーションプログラミングモデル、ABAP 開発、および ABAP RESTful アプリケーションプログラミングモデルのアーキテクチャについて説明します。
トピック 3	ABAP コアデータサービスとデータモデリング: コアデータサービス (CDS) ビュー、SAP HANA データベーステーブル、外部キー関係、注釈に重点を置いています。
トピック 4	コア ABAP プログラミング: このトピックでは、ABAP データ型、ABAP ディクショナリ、モジュール化、例外、SAP HANA データベーステーブル、論理式、演算子の優先順位について説明します。

SAP Certified Associate - Back-End Developer - ABAP Cloud 認定 C-ABAPD-2309 試験問題 (Q31-Q36):

質問 # 31
Given the following code in an SAP S/4HANA Cloud private edition tenant:

The class zcl_demo_class is in a software component with the language version set to "ABAP Cloud". The function module ZF1' is in a different software component with the language version set to "Standard ABAP".
Both the class and function module are customer created.
Regarding line #6, which of the following are valid statements? Note: There are 2 correct answers to this question.

A. ZF1' can be called only if it is released for cloud development.
B. 'ZF1' can be called if a wrapper is created for it and the wrapper itself is released for cloud development.
C. "ZF1" can be called whether it is released or not for cloud development
D. ZF1" can be called if a wrapper is created for it but the wrapper itself is not released for cloud development.

正解：A、B

解説：
The ABAP Cloud Development Model requires that only public SAP APIs and extension points are used to access SAP functionality and data. These APIs and extension points are released by SAP and documented in the SAP API Business Hub1. Customer-created function modules are not part of the public SAP APIs and are not released for cloud development. Therefore, calling a function module directly from an ABAP Cloud class is not allowed and will result in a syntax error. However, there are two possible ways to call a function module indirectly from an ABAP Cloud class:
* Create a wrapper class or interface for the function module and release it for cloud development. A wrapper is a class or interface that encapsulates the function module and exposes its functionality through public methods or attributes. The wrapper must be created in a software component with the language version set to "Standard ABAP" and must be marked as released for cloud development using the annotation @EndUserText.label. The wrapper can then be called from an ABAP Cloud class using the public methods or attributes2.
* Use the ABAP Cloud Connector to call the function module as a remote function call (RFC) from an ABAP Cloud class. The ABAP Cloud Connector is a service that enables the secure and reliable communication between SAP BTP, ABAP environment and on-premise systems. The function module must be exposed as an RFC-enabled function module in the on-premise system and must be registered in the ABAP Cloud Connector. The ABAP Cloud class can then use the class cl_rfc_destination_service to get the destination name and the class cl_abap_system to create a proxy object for the function module. The proxy object can then be used to call the function module3.
References: 1: SAP API Business Hub 2: Creating an ABAP Cloud Project | SAP Help Portal 3: Calling Remote Function Modules | SAP Help Portal

質問 # 32
What are some characteristics of secondary keys for internal tables? Note: There are 3 correct answers to this question.

A. Hashed secondary keys do NOT have to be unique.
B. Secondary keys can only be created for standard tables.
C. Multiple secondary keys are allowed for any kind of internal table.
D. Secondary keys must be chosen explicitly when you actually read from an internal table.
E. Sorted secondary keys do NOT have to be unique.

正解：C、D、E

解説：
Explanation
Secondary keys are additional keys that can be defined for internal tables to optimize the access to the table using fields that are not part of the primary key. Secondary keys can be either sorted or hashed, depending on the table type and the uniqueness of the key. Secondary keys have the following characteristics1:
A). Secondary keys must be chosen explicitly when you actually read from an internal table. This means that when you use a READ TABLE or a LOOP AT statement to access an internal table, you have to specify the secondary key that you want to use with the USING KEY addition. For example, the following statement reads an internal table itab using a secondary key sec_key:
READ TABLE itab USING KEY sec_key INTO DATA(wa).
If you do not specify the secondary key, the system will use the primary key by default2.
B). Multiple secondary keys are allowed for any kind of internal table. This means that you can define more than one secondary key for an internal table, regardless of the table type. For example, the following statement defines an internal table itab with two secondary keys sec_key_1 and sec_key_2:
DATA itab TYPE SORTED TABLE OF ty_itab WITH NON-UNIQUE KEY sec_key_1 COMPONENTS field1 field2 sec_key_2 COMPONENTS field3 field4.
You can then choose which secondary key to use when you access the internal table1.
D). Sorted secondary keys do NOT have to be unique. This means that you can define a sorted secondary key for an internal table that allows duplicate values for the key fields. A sorted secondary key maintains a predefined sorting order for the internal table, which is defined by the key fields in the order in which they are specified. For example, the following statement defines a sorted secondary key sec_key for an internal table itab that sorts the table by field1 in ascending order and field2 in descending order:
DATA itab TYPE STANDARD TABLE OF ty_itab WITH NON-UNIQUE SORTED KEY sec_key COMPONENTS field1 ASCENDING field2 DESCENDING.
You can then access the internal table using the sorted secondary key with a binary search algorithm, which is faster than a linear search3.
The following are not characteristics of secondary keys for internal tables, because:
C). Hashed secondary keys do NOT have to be unique. This is false because hashed secondary keys must be unique. This means that you can only define a hashed secondary key for an internal table that does not allow duplicate values for the key fields. A hashed secondary key does not have a predefined sorting order for the internal table, but uses a hash algorithm to store and access the table rows. For example, the following statement defines a hashed secondary key sec_key for an internal table itab that hashes the table by field1 and field2:
DATA itab TYPE STANDARD TABLE OF ty_itab WITH UNIQUE HASHED KEY sec_key COMPONENTS field1 field2.
You can then access the internal table using the hashed secondary key with a direct access algorithm, which is very fast.
E). Secondary keys can only be created for standard tables. This is false because secondary keys can be created for any kind of internal table, such as standard tables, sorted tables, and hashed tables. However, the type of the secondary key depends on the type of the internal table. For example, a standard table can have sorted or hashed secondary keys, a sorted table can have sorted secondary keys, and a hashed table can have hashed secondary keys1.
References: 1: Secondary Table Key - ABAP Keyword Documentation 2: READ TABLE - ABAP Keyword Documentation 3: Sorted Tables - ABAP Keyword Documentation : Hashed Tables - ABAP Keyword Documentation

質問 # 33
In the assignment, data (gv_result) = 1/8. what will be the data type of gv_result?

A. TYPE DEFLOAT 16
B. TYPE P DECIMALS 2
C. TYPE P DECIMALS 3
D. OTYPE I

正解：A

解説：
The data type of gv_result in the assignment data (gv_result) = 1/8 will be TYPE DECFLOAT 16. This is because the assignment operator (=) in ABAP performs an implicit type conversion from the source type to the target type, according to the following rules12:
If the target type is specified explicitly, the source value is converted to the target type.
If the target type is not specified explicitly, the source type is used as the target type, unless the source type is a literal or an expression, in which case the target type is determined by the following priority order: DECFLOAT34, DECFLOAT16, P, F, I, C, N, X, STRING, XSTRING.
In this case, the target type is not specified explicitly, and the source type is an expression (1/8). Therefore, the target type is determined by the priority order, and the first matching type is DECFLOAT16, which is a decimal floating point type with 16 digits of precision12.

質問 # 34
Which of the following integration frameworks have been released for ABAP cloud development? Note:
There are 3 correct answers to this question.

A. SOAP consumption
B. OData services
C. CDS Views
D. Business Add-ins (BAdls)
E. Business Events

正解：A、B、E

解説：
Explanation
The following are the integration frameworks that have been released for ABAP cloud development:
SOAP consumption: This framework allows you to consume SOAP web services from ABAP cloud applications. You can use the ABAP Development Tools in Eclipse to create a service consumption model based on a WSDL file or URL. The service consumption model generates the required ABAP artifacts, such as proxy classes, data types, and constants, to access the web service. You can then use the proxy classes to call the web service operations from your ABAP code1 Business Events: This framework allows you to publish and subscribe to business events from ABAP cloud applications. Business events are messages that represent a change in the state of a business object or process. You can use the ABAP Development Tools in Eclipse to create a business event definition based on a CDS view entity or a projection view. The business event definition specifies the event key, the event payload, and the event metadata. You can then use the ABAP Messaging Channel (AMC) framework to publish and subscribe to business events using the AMC API2 OData services: This framework allows you to expose and consume OData services from ABAP cloud applications. OData is a standardized protocol for creating and consuming RESTful APIs. You can use the ABAP RESTful Application Programming Model (RAP) to create OData services based on CDS view entities or projection views. The RAP framework generates the required OData metadata and runtime artifacts, such as service definitions, service bindings, and service implementations. You can then use the SAP Gateway framework to register and activate your OData services. You can also use the ABAP Development Tools in Eclipse to consume OData services from other sources using the service consumption model3 The other integration frameworks are not released for ABAP cloud development, as they are either not supported or not recommended for cloud scenarios. These frameworks are:
CDS Views: CDS views are not an integration framework, but a data modeling framework. CDS views are used to define data models based on database tables or other CDS view entities. CDS views can have associations, aggregations, filters, parameters, and annotations. CDS views can also be used as the basis for other integration frameworks, such as OData services or business events4 Business Add-ins (BAdls): BAdls are not supported for ABAP cloud development, as they are part of the classic ABAP enhancement framework. BAdls are used to implement custom logic in predefined enhancement spots in the standard SAP code. BAdls are not compatible with the cloud strategy and the clean core paradigm, as they modify the SAP code and can cause upgrade and maintenance issues. For ABAP cloud development, SAP recommends using the key user extensibility tools or the side-by-side extensibility approach instead of BAdls.
References: Consuming SOAP Services - ABAP Keyword Documentation, Business Events - ABAP Keyword Documentation, OData Services - ABAP Keyword Documentation, CDS Data Model Views - ABAP Keyword Documentation, [Business Add-Ins (BAdIs) - ABAP Keyword Documentation]

質問 # 35
Class super has subclass sub. Which rules are valid for the sub constructor? Note: There are 2 correct answers to this question.

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

正解：B、D

解説：
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

質問 # 36
......

It-Passportsについてどのくらい知っているのですか。It-PassportsのC-ABAPD-2309試験問題集を利用したことがありますか。あるいは、知人からIt-Passportsを聞いたことがありますか。IT認定試験に関連する参考書のプロな提供者として、It-Passportsは間違いなくあなたが今まで見た最高のサイトです。なぜこのように確かめるのですか。それはIt-Passportsのように最良のC-ABAPD-2309試験参考書を提供してあなたに試験に合格させるだけでなく、最高品質のサービスを提供してあなたに100％満足させることもできるサイトがないからです。

C-ABAPD-2309復習攻略問題: https://www.it-passports.com/C-ABAPD-2309.html

BONUS！！！ It-Passports C-ABAPD-2309ダンプの一部を無料でダウンロード：https://drive.google.com/open?id=1dYYi6hDFAOzwrOuMutnwlokuIM4i_shn

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