The SNMP protocol is at the ( ) layer in the TCP/IP protocol stack?

SNMP Overview :

SNMP (Simple Network Management Protocol) is used for managing and monitoring network devices.

TCP/IP Protocol Stack Layers :

Application Layer : Protocols that provide services directly to end users or applications (e.g., HTTP, FTP, SMTP).

Transport Layer : Protocols that ensure reliable data transfer (e.g., TCP, UDP).

Network Layer : Protocols that handle packet routing (e.g., IP).

Control Layer : Not a recognized layer in the TCP/IP model.

SNMP Placement :

SNMP operates at the Application Layer of the TCP/IP protocol stack. It uses UDP (User Datagram Protocol) as its transport protocol but resides at the application layer.

Why A?

SNMP is an application-layer protocol designed for network management tasks.

Thus, the correct answer is A .

References:

HCIA Huawei ACCESS Official Documentation , Chapter: SNMP Protocol.

RFC 1157: SNMP Protocol Specification .