Correct Answer: A
* 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 .