Heel to toe to hair and hoof and it's head over heels and it's all but an ark-lark...

Cisco-ccna-v7 Link

The ENSA course describes the architectures and considerations for large-scale enterprise networks.

The ITN course covers the basic architectures, models, and protocols of networking. cisco-ccna-v7

Introduction to Networks Companion Guide (CCNAv7) - Cisco Press Quality of Service (QoS) mechanisms

Wide Area Network (WAN) technologies, Quality of Service (QoS) mechanisms, network security concepts (ACLs, VPNs), and network automation. network security concepts (ACLs

The SRWE course focuses on the operation of routers and switches in small networks.

Learn to build simple Local Area Networks (LANs) and implement IP addressing schemes. 2. Switching, Routing, and Wireless Essentials (SRWE)

Understand how to secure and manage enterprise-grade networks through automation and virtualization. Preparation Resources