Client-Server Architecture in File Transfer Protocol

The correct answer for the question is option 'C' - Client-server architecture.

Explanation:
File Transfer Protocol (FTP) is a standard network protocol used for transferring files between a client and a server on a computer network. It is built on the client-server architecture, which is a widely used model for designing networked applications.

Client-Server Architecture:
Client-server architecture is a distributed computing model where tasks or workloads are divided between the providers of a resource or service, called servers, and service requesters, called clients. In this architecture, the server provides resources or services to multiple clients, and the clients make requests to the server for accessing those resources or services.

Working of FTP:
FTP follows a client-server architecture in which the client initiates a connection to the server and sends requests for file transfers. The server responds to the client's requests and performs the necessary operations to transfer files.

Components of FTP:
FTP consists of the following main components:

1. Client: The client is the user's computer or device that initiates the FTP connection to the server. The client sends requests to the server to perform operations such as listing directories, uploading files, or downloading files.

2. Server: The server is the remote computer or device that hosts the FTP service. It receives requests from the client and performs the requested operations. The server stores and manages the files that are accessible to the client.

3. Control Connection: The control connection is established between the client and the server to exchange commands and responses. It is used for controlling the FTP session, such as logging in, navigating directories, and transferring control information.

4. Data Connection: The data connection is established separately from the control connection to transfer actual file data. It is used for transferring files between the client and the server.

Advantages of Client-Server Architecture in FTP:
The client-server architecture provides several advantages for file transfer protocols like FTP:

1. Scalability: The architecture allows multiple clients to connect to a single server, enabling scalability to handle a large number of file transfer requests.

2. Resource Sharing: The server can centrally manage and share files with multiple clients, providing a centralized storage and access point for files.

3. Security: The server can implement security measures such as authentication, encryption, and access control to protect files and ensure secure file transfers.

Overall, the client-server architecture forms the foundation of the File Transfer Protocol by enabling efficient and reliable file transfers between clients and servers over computer networks.