Which of the following protocols operates at the HIGHEST level of the OSI model?

The correct answer is C. SCP. SCP (Secure Copy Protocol) is an application-layer protocol (Layer 7) that runs on top of SSH to transfer files securely between hosts. ICMP (Internet Control Message Protocol) operates at the Network layer (Layer 3) and is used for diagnostics like ping. IPSec also operates at t

General security concepts

Question

Options

AICMP
BIPSec
CSCP
DTCP

How the community answered

(30 responses)

A
3% (1)
C
87% (26)
D
10% (3)

Explanation

SCP (Secure Copy Protocol) is an application-layer protocol (Layer 7) that runs on top of SSH to transfer files securely between hosts. ICMP (Internet Control Message Protocol) operates at the Network layer (Layer 3) and is used for diagnostics like ping. IPSec also operates at the Network layer (Layer 3) to provide encryption and authentication for IP packets. TCP operates at the Transport layer (Layer 4). Since SCP functions at the Application layer (Layer 7), it operates at the highest OSI level among the given choices.

Topics

#OSI model#network protocols#application layer#SCP

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