Configuring Junos OS devices requires a thorough understanding of networking fundamentals, and this course is a primer in that understanding. It covers the fundamentals of networking, including the OSI network model, the routing and switching functions, and data-link and IP addressing. This course is one of a series of Skillsoft courses that cover the objectives for Juniper Networks exam JN0-102. This exam completes the requirement for the certification Juniper Networks Certified Associate - Junos (JNCIA-Junos).
Learning Objectives
Network Devices
- start the course
- describe the seven layers of the ISO Open Systems Interconnection model
- describe the characteristics of layer 2 and layer 3 in the OSI model with respect to node-to-node and end-to-end communication
- describe the concept of a collision domain in a layer 2 network
- describe the concept of a broadcast domain in a layer 2 network
- describe the function of layer 2 network switches
- describe the function of layer 3 routers
- describe the SONET and SDH protocols for transferring data over fiber optic cable
- describe the OTN standard for optical networks
- describe the basic characteristics of Ethernet
- list the variants of Ethernet in common use
Addressing
- list and describe the addressing schemes used at layer 2 of the OSI model
- describe address resolution at layer 2 and ARP
- describe the fundamental properties and structure of IPv4 addresses
- describe the fundamental properties and structure of IPv6 addresses
- describe the use of subnet mask and default gateway for IPv4 addresses
Subnetting and Supernetting
- describe the binary number system and how to convert from decimal to binary and binary to decimal
- describe the process of subnetting to split an IP address space
- describe the technique of supernetting to aggregate an IP address space
- describe the function of routing tables and the longest match routing algorithm
Layer 4
- describe the function of protocols at layer 4 and the main protocols in use
- describe the operation of connection-oriented protocols and TCP
- describe the function of connectionless protocols and UDP
Practice: Protocols and Functions
- match protocols and functionality in networks to the layers responsible