COMPUTER NETWORKING

INTRODUCTION

PROTOCOL LAYERING

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which layer do HTTP, SMTP, FTP protocols belong in?

A	Layer 1-Physical
B	Layer 2-Data Link
C	Layer 3-Network
D	Layer 4-Transport
E	Layer 5-Application

Explanation:

Detailed explanation-1: -The application layer also identifies constraints at the application level such as those associated with authentication, privacy, quality of service, networking devices, and data syntax. Common application layer protocols include: File Transfer Protocol (FTP) Simple Mail Transfer Protocol (SMTP)

Detailed explanation-2: -SMTP and HTTP are both network layer protocols that are used to transfer information between hosts. SMTP is used to transfer emails between mail servers, while HTTP is used to transfer data from a web server to a web client.

Detailed explanation-3: -AppleTalk Session Protocol (ASP) AppleTalk Data Stream Protocol (ADSP) OSI Session Layer Protocol (X. Network Basic Input/Output System (NetBIOS) Password Authentication Protocol (PAP) Remote Procedure Call Protocol (RPC) Point-to-Point Tunneling Protocol (PPTP) 28-May-2014

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