According to the conceptual model of architecture description from ISO/IEC 42010, an architecture view is a representation of a system from the perspective of a set of concerns. An architecture viewpoint is a specification of the conventions and rules for constructing and using an architecture view. A and B in the diagram correspond to these concepts respectively.
References: ISO/IEC/IEEE 42010: Conceptual Model1; ISO/IEC/IEEE 42010:2011 - Systems and software engineering - Architecture description2.

According to the Technology Layer metamodel, a communication network is a physical communication medium between two or more devices or other networks. A communication network realizes a path, which is a relation between two or more nodes through which they can exchange information.

According to the application layer metamodel, the passive counterpart of the application component is the data object, which represents data structured for automated processing. A data object can be accessed or manipulated by an application component or an application function.
References: ArchiMate 3.2 Specification, Chapter 8: Application Layer1; Application Layer in ArchiMate Part 1 - Metamodel2.

Comprehensive and Detailed in Depth Explanation:AnInterfacein ArchiMate representsan access point through which elements interact with services. It can be aBusiness Interface, Application Interface, or Technology Interface.
Interfaces serve as aboundarybetween internal and external systems, allowing controlled interactions. The ArchiMate 3.2 Specificationexplicitly states thatinterfaces expose services to the environment.
References:
* Archi User Guide
* ArchiMate 3.2 Specification

Comprehensive and Detailed in Depth Explanation:In theApplication Layer metamodel, anApplication Serviceprovides functionality that operates onData Objects. TheAccessrelationship is used to model the reading, writing, creation, or deletionof aData Objectby anApplication Service.
This is becauseApplication Servicesdefine what applications offer, andData Objectsrepresent the structured data they process. TheArchiMate 3.2 Specificationexplicitly states thatApplication ServicesuseAccess relationships to interact withData Objects.
References:
* Archi User Guide
* ArchiMate 3.2 Specification