Which device acting as a translator is used to connect two networks or applications from layer 4 up to layer 7 of the ISO/OSI Model?

The correct answer is D. Gateway. A gateway operates at OSI Layers 4 through 7 (Transport through Application) and acts as a protocol translator, enabling communication between networks or applications that use different protocols or architectures. For example, an email gateway can translate between different mes

Submitted by saadiq_pk· Apr 18, 2026Network and Communications Security

Question

Exhibits

Options

ABridge
BRepeater
CRouter
DGateway

How the community answered

(25 responses)

B
8% (2)
C
4% (1)
D
88% (22)

Explanation

A gateway operates at OSI Layers 4 through 7 (Transport through Application) and acts as a protocol translator, enabling communication between networks or applications that use different protocols or architectures. For example, an email gateway can translate between different messaging protocols. A bridge operates at Layer 2 (Data Link). A repeater operates at Layer 1 (Physical). A router operates at Layer 3 (Network). Only the gateway spans the upper layers and performs the translation role described.

Topics

#OSI Model#Network Devices#Gateway#Networking Fundamentals

Community Discussion

No community discussion yet for this question.

Full SSCP Practice