Can I apply for the position of Network Specialist after completing this course?

After completing the CCNA: Cisco Certified Network Associate certification, you can apply for positions like Network Administrator, Network Specialist, and Network Support Engineer.

Which companies hire Network administrators?

Companies like IBM, TCS, Infosys, and many other companies hire Network administrators.

Can I share the certification badge on any platform?

You can share your Cisco digital badge on multiple social media platforms.

What is the exam code for the certification exam?

The exam code for the CCNA: Cisco Certified Network Associate exam is CCNA 200-301.

CCNA: Cisco Certified Network Associate (CCNA 200-301) Training by Infosec Train: Fee, Duration, How to Apply

particular	details
Medium of instructions English	Mode of learning Virtual Classroom	Mode of Delivery Video Based

Introduction to Networking

Chapter 1: Introduction to TCP/IP Networking

TCP/IP Networking Model
History Leading to TCP/IP
Overview of the TCP/IP Networking Model
TCP/IP Application Layer
HTTP Overview
HTTP Protocol Mechanisms
TCP/IP Transport Layer
TCP Error Recovery Basics
Same-Layer and Adjacent-Layer Interactions
TCP/IP Network Layer
Internet Protocol and the Postal Service
Internet Protocol Addressing Basics
IP Routing Basics
TCP/IP Data-Link and Physical Layers
Data Encapsulation Terminology
Names of TCP/IP Messages
OSI Networking Model and Terminology
Comparing OSI and TCP/IP Layer Names and Numbers
OSI Data Encapsulation Terminology

Chapter 2: Fundamentals of Ethernet LANs

An Overview of LANs
SOHO LANs
Enterprise LANs
The Variety of Ethernet Physical Layer Standards
Consistent Behavior over All Links Using the Ethernet Data-Link Layer
Building Physical Ethernet LANs with UTP
Transmitting Data Using Twisted Pairs
Breaking Down a UTP Ethernet Link
UTP Cabling Pinouts for 10BASE-T and 100BASE-T
Straight-Through Cable Pinout
Choosing the Right Cable Pinouts
UTP Cabling Pinouts for 1000BASE-T
Building Physical Ethernet LANs with Fiber
Fiber Cabling Transmission Concepts
Using Fiber with Ethernet
Sending Data in Ethernet Networks
Ethernet Data-Link Protocols
Ethernet Addressing
Identifying Network Layer Protocols with the Ethernet Type Field
Error Detection with FCS
Sending Ethernet Frames with Switches and Hubs
Sending in Modern Ethernet LANs Using Full Duplex
Using Half Duplex with LAN Hubs

Chapter 3: Fundamentals of WANs and IP Routing

Wide-Area Networks
Leased-Line WANs
Physical Details of Leased Lines
HDLC Data-Link Details of Leased Lines
How Routers Use a WAN Data Link
Ethernet as a WAN Technology
Ethernet WANs That Create a Layer 2 Service
How Routers Route IP Packets Using Ethernet Emulation
IP Routing
Network Layer Routing (Forwarding) Logic
Host Forwarding Logic: Send the Packet to the Default Router
R1 and R2’s Logic: Routing Data Across the Network
R3’s Logic: Delivering Data to the End Destination
How Network Layer Routing Uses LANs and WAN
How IP Addressing Helps IP Routing
Rules for Groups of IP Addresses (Networks and Subnets)
The IP Header
How IP Routing Protocols Help IP Routing
Other Network Layer Features
Using Names and the Domain Name System
The Address Resolution Protocol
ICMP Echo and the ping Command

Implementing Ethernet LANs

Chapter 4: Using the Command-Line Interface

Accessing the Cisco Catalyst Switch CLI
Cisco Catalyst Switches
Accessing the Cisco IOS CLI
Cabling the Console Connection
Accessing the CLI with Telnet and SSH
User and Enable (Privileged) Modes
Password Security for CLI Access from the Console
CLI Help Features
The debug and show Commands
Configuring Cisco IOS Software
Configuration Submodels and Contexts
Storing Switch Configuration Files
Copying and Erasing Configuration Files

Chapter 5: Analysing Ethernet LAN Switching

LAN Switching Concepts
Overview of Switching Logic
Forwarding Known Unicast Frames
Learning MAC Addresses
Flooding Unknown Unicast and Broadcast Frames
Avoiding Loops Using Spanning Tree Protocol
LAN Switching Summary
Verifying and Analyzing Ethernet Switching
Demonstrating MAC Learning
Switch Interfaces
Finding Entries in the MAC Address Table
Managing the MAC Address Table (Aging, Clearing)
MAC Address Tables with Multiple Switches

Chapter 6: Configuring Basic Switch Management

Securing the Switch CLI
Securing User Mode and Privileged Mode with Simple Passwords
Securing User Mode Access with Local Usernames and Passwords
Securing User Mode Access with External Authentication Servers
Securing Remote Access with Secure Shell
Enabling IPv4 for Remote Access
Host and Switch IP Settings
Configuring IPv4 on a Switch
Configuring a Switch to Learn Its IP Address with DHCP
Verifying IPv4 on a Switch
Miscellaneous Settings Useful in the Lab
History Buffer Commands
The logging synchronous, exec-timeout, and no ip domain-lookup Commands

Chapter 7: Configuring and Verifying Switch Interfaces

Configuring Switch Interfaces
Configuring Speed, Duplex, and Description
Configuring Multiple Interfaces with the interface range Command
Administratively Controlling Interface State with shutdown
Removing Configuration with the no Command
Auto-negotiation
Auto-negotiation Under Working Conditions
Auto-negotiation Results When Only One Node Uses Autonegotiation
Auto-negotiation and LAN Hubs
Analyzing Switch Interface Status and Statistics
Interface Status Codes and Reasons for Nonworking States
Interface Speed and Duplex Issues
Common Layer 1 Problem on Working Interfaces

Implementing VLANs and STP

Chapter 8: Implementing Ethernet Virtual LANs

Virtual LAN Concepts
Creating Multiswitch VLANs Using Trunking
VLAN Tagging Concepts
The 802.1Q and ISL VLAN Trunking Protocols
Forwarding Data Between VLANs
The Need for Routing Between VLANs
Routing Packets Between VLANs with a Router
VLAN and VLAN Trunking Configuration and Verification
Creating VLANs and Assigning Access VLANs to an Interface
VLAN Configuration Example 1: Full VLAN Configuration
VLAN Configuration Example 2: Shorter VLAN Configuration
VLAN Trunking Protocol
VLAN Trunking Configuration
Implementing Interfaces Connected to Phones
Data and Voice VLAN Concepts
Data and Voice VLAN Configuration and Verification
Summary: IP Telephony Ports on Switches
Troubleshooting VLANs and VLAN Trunks
Access VLANs Undefined or Disabled
Mismatched Trunking Operational State
The Supported VLAN List on Trunks
Mismatched Native VLAN on a Trunk

Chapter 9: Spanning Tree Protocol Concepts

STP and RSTP Basics
The Need for Spanning Tree
What Spanning Tree Does
How Spanning Tree Works
The STP Bridge ID and Hello BPDU
Electing the Root Switch
Choosing Each Switch’s Root Port
Choosing the Designated Port on Each LAN Segment
Configuring to Influence the STP Topology
Details Specific to STP (and Not RSTP)
STP Activity When the Network Remains Stable
STP Timers That Manage STP Convergence
Changing Interface States with STP
Rapid STP Concepts
Comparing STP and RSTP
RSTP and the Alternate (Root) Port Role
RSTP States and Processes
RSTP and the Backup (Designated) Port Role
RSTP Port Types
Optional STP Features
EtherChannel
PortFast
BPDU Guard

Chapter 10: RSTP and EtherChannel Configuration

Understanding RSTP Through Configuration
The Need for Multiple Spanning Trees
STP Modes and Standards
The Bridge ID and System ID Extension
How Switches Use the Priority and System ID Extension
RSTP Methods to Support Multiple Spanning Trees
Other RSTP Configuration Options
Configuring Layer 2 EtherChannel
Configuring a Manual Layer 2 EtherChannel
Configuring Dynamic EtherChannels
Physical Interface Configuration and EtherChannels
EtherChannel Load Distribution
Configuration Options for EtherChannel Load Distribution
The Effects of the EtherChannel Load Distribution Algorithm

IPv4 Addressing

Chapter 11: Perspectives on IPv4 Subnetting

Introduction to Subnetting
Subnetting Defined Through a Simple Example
Operational View Versus Design View of Subnetting
Analyze Subnetting and Addressing Needs
Rules About Which Hosts Are in Which Subnet
Determining the Number of Subnets
Determining the Number of Hosts per Subnet
One Size Subnet Fits All—Or Not
Defining the Size of a Subnet
One Size Subnet Fits All
Multiple Subnet Sizes (Variable-Length Subnet Masks)
One Mask for All Subnets, or More Than One
Make Design Choices
Choose a Classful Network
Public IP Networks
Growth Exhausts the Public IP Address Space
Private IP Networks
Choosing an IP Network During the Design Phase
Choose the Mask
Classful IP Networks Before Subnetting
Borrowing Host Bits to Create Subnet Bits
Choosing Enough Subnet and Host Bits
Example Design: 172.16.0.0, 200 Subnets, 200 Hosts
Masks and Mask Formats
Build a List of All Subnets
Plan the Implementation
Assigning Subnets to Different Locations
Choose Static and Dynamic Ranges per Subnet

Chapter 12: Analysing Classful IPv4 Networks

Classful Network Concepts
IPv4 Network Classes and Related Facts
The Number and Size of Class A, B, and C Networks
Address Formats
Default Masks
Number of Hosts per Network
Deriving the Network ID and Related Numbers
Unusual Network IDs and Network Broadcast Addresses
Practice with Classful Networks
Practice Deriving Key Facts Based on an IP Address
Practice Remembering the Details of Address Classes

Chapter 13: Analyzing Subnet Masks

Subnet Mask Conversion
Three Mask Formats
Converting Between Binary and Prefix Masks
Converting Between Binary and DDN Masks
Converting Between Prefix and DDN Masks
Practice Converting Subnet Masks
Identifying Subnet Design Choices Using Masks
Masks Divide the Subnet’s Addresses into Two Parts
Masks and Class Divide Addresses into Three Parts
Classless and Classful Addressing
Calculations Based on the IPv4 Address Format
Practice Analyzing Subnet Masks

Chapter 14: Analyzing Existing Subnets

Defining a Subnet
An Example with Network 172.16.0.0 and Four Subnets
Subnet ID Concepts
Subnet Broadcast Address
Range of Usable Addresses
Analyzing Existing Subnets: Binary
Finding the Subnet ID: Binary
Finding the Subnet Broadcast Address: Binary
Binary Practice Problems
Shortcut for the Binary Process
Brief Note About Boolean Math
Finding the Range of Addresses
Analyzing Existing Subnets: Decimal
Analysis with Easy Masks
Predictability in the Interesting Octet
Finding the Subnet ID: Difficult Masks
Resident Subnet Example 1
Resident Subnet Example 2
Resident Subnet Practice Problems
Finding the Subnet Broadcast Address: Difficult Masks
Subnet Broadcast Example 1
Subnet Broadcast Example 2
Subnet Broadcast Address Practice Problems
Practice Analyzing Existing Subnets
A Choice: Memorize or Calculate

IPv4 Routing

Chapter 15: Operating Cisco Routers

Installing Cisco Routers
Installing Enterprise Routers
Cisco Integrated Services Routers
Physical Installation
Installing SOHO Routers
Enabling IPv4 Support on Cisco Router Interfaces
Accessing the Router CLI
Router Interfaces
Interface Status Codes
Router Interface IP Addresses
Bandwidth and Clock Rate on Serial Interfaces
Router Auxiliary Port

Chapter 16: Configuring IPv4 Addresses and Static Routes

IP Routing
IPv4 Routing Process Reference
An Example of IP Routing
Host Forwards the IP Packet to the Default Router (Gateway)
Routing Step 1: Decide Whether to Process the Incoming Frame
Routing Step 2: De-encapsulation of the IP Packet
Routing Step 3: Choosing Where to Forward the Packet
Routing Step 4: Encapsulating the Packet in a New Frame
Routing Step 5: Transmitting the Frame
Configuring IP Addresses and Connected Routes
Connected Routes and the ip address Command
The ARP Table on a Cisco Router
Configuring Static Routes
Static Network Routes
Static Host Routes
Floating Static Routes
Static Default Routes
Troubleshooting Static Routes
Troubleshooting Incorrect Static Routes That Appear in the IP Routing Table
The Static Route Does Not Appear in the IP Routing Table
The Correct Static Route Appears but Works Poorly
IP Forwarding with the Longest Prefix Match
Using show ip route to Find the Best Route
Using show ip route address to Find the Best Route
Interpreting the IP Routing Table

Chapter 17: IP Routing in the LAN

VLAN Routing with Router 802.1Q Trunks
Configuring ROAS
Verifying ROAS
Troubleshooting ROAS
VLAN Routing with Layer 3 Switch SVIs
Configuring Routing Using Switch SVIs
Verifying Routing with SVIs
Troubleshooting Routing with SVIs
VLAN Routing with Layer 3 Switch Routed Ports
Implementing Routed Interfaces on Switches
Implementing Layer 3 EtherChannels
Troubleshooting Layer 3 EtherChannels

Chapter 18: Troubleshooting IPv4 Routing

Problem Isolation Using the Ping Command
Ping Command Basics
Strategies and Results When Testing with the Ping Command
Testing Longer Routes from Near the Source of the Problem
Using Extended Ping to Test the Reverse Route
Testing LAN Neighbors with Standard Ping
Testing LAN Neighbors with Extended Ping
Testing WAN Neighbors with Standard Ping
Using Ping with Names and with IP Addresses
Problem Isolation Using the Traceroute Command
Traceroute Basics
How the Traceroute Command Works
Standard and Extended Traceroute
Telnet and SSH
Common Reasons to Use the IOS Telnet and SSH Client
IOS Telnet and SSH Examples

OSPF

Chapter 19: Understanding OSPF Concepts

Comparing Dynamic Routing Protocol Features
Routing Protocol Functions
Interior and Exterior Routing Protocols
Comparing IGPs
IGP Routing Protocol Algorithms
Metrics
Other IGP Comparisons
Administrative Distance
OSPF Concepts and Operation
OSPF Overview
Topology Information and LSAs
Applying Dijkstra SPF Math to Find the Best Routes
Becoming OSPF Neighbors
The Basics of OSPF Neighbors
Meeting Neighbors and Learning Their Router ID
Exchanging the LSDB Between Neighbors
Fully Exchanging LSAs with Neighbors
Maintaining Neighbors and the LSDB
Using Designated Routers on Ethernet Links
Calculating the Best Routes with SPF
OSPF Areas and LSAs
OSPF Areas
How Areas Reduce SPF Calculation Time
(OSPFv2) Link-State Advertisements
Router LSAs Build Most of the Intra-Area Topology
Network LSAs Complete the Intra-Area Topology

Chapter 20: Implementing OSPF

Implementing Single-Area OSPFv2
OSPF Single-Area Configuration
Wildcard Matching with the network Command
Verifying OSPF Operation
Verifying OSPF Configuration
Configuring the OSPF Router ID
Implementing Multiarea OSPF
Using OSPFv2 Interface Subcommands
OSPF Interface Configuration Example
Verifying OSPF Interface Configuration
Additional OSPFv2 Features
OSPF Passive Interfaces
OSPF Default Routes
OSPF Metrics (Cost)
Setting the Cost Directly
Setting the Cost Based on Interface and Reference Bandwidth
OSPF Load Balancing

IP Version 6

Chapter 22: Fundamentals of IP Version 6

Introduction to IPv6
The Historical Reasons for IPv6
The IPv6 Protocols
IPv6 Routing
IPv6 Routing Protocols
IPv6 Addressing Formats and Conventions
Representing Full (Unabbreviated) IPv6 Addresses
Abbreviating and Expanding IPv6 Addresses
Abbreviating IPv6 Addresses
Expanding Abbreviated IPv6 Addresses
Representing the Prefix Length of an Address
Calculating the IPv6 Prefix (Subnet ID)
Finding the IPv6 Prefix
Working with More Difficult IPv6 Prefix Lengths

Chapter 23: IPv6 Addressing and Subnetting

Global Unicast Addressing Concepts
Public and Private IPv6 Addresses
The IPv6 Global Routing Prefix
Address Ranges for Global Unicast Addresses
IPv6 Subnetting Using Global Unicast Addresses
Deciding Where IPv6 Subnets Are Needed
The Mechanics of Subnetting IPv6 Global Unicast Addresses
Listing the IPv6 Subnet Identifier
List All IPv6 Subnets
Assign Subnets to the Internetwork Topology
Assigning Addresses to Hosts in a Subnet
Unique Local Unicast Addresses
Subnetting with Unique Local IPv6 Addresses
The Need for Globally Unique Local Addresses

Chapter 24: Implementing IPv6 Addressing Routers

Implementing Unicast IPv6 Addresses on Routers
Static Unicast Address Configuration
Configuring the Full 128-Bit Address
Enabling IPv6 Routing
Verifying the IPv6 Address Configuration
Generating a Unique Interface ID Using Modified EUI-64
Dynamic Unicast Address Configuration
Special Addresses Used by Routers
Link-Local Addresses
Link-Local Address Concepts
Creating Link-Local Addresses on Routers
Routing IPv6 with Only Link-Local Addresses on an Interface
IPv6 Multicast Addresses
Reserved Multicast Addresses
Multicast Address Scopes
Solicited-Node Multicast Addresses
Miscellaneous IPv6 Addresses
Anycast Addresses
IPv6 Addressing Configuration Summary

Chapter 25: Implementing IPv6 Routing

Connected and Local IPv6 Routes
Rules for Connected and Local Routes
Example of Connected IPv6 Routes
Examples of Local IPv6 Routes
Static IPv6 Routes
Static Routes Using the Outgoing Interface
Static Routes Using Next-Hop IPv6 Address
Example Static Route with a Global Unicast Next-Hop Address
Example Static Route with a Link-Local Next-Hop Address
Static Routes over Ethernet Links
Static Default Routes
Static IPv6 Host Routes
Floating Static IPv6 Routes
Troubleshooting Static IPv6 Routes
Troubleshooting Incorrect Static Routes That Appear in the IPv6 Routing Table
The Static Route Does Not Appear in the IPv6 Routing Table
The Neighbor Discovery Protocol
Discovering Neighbor Link Addresses with NDP NS and NA
Discovering Routers with NDP RS and RA
Using SLAAC with NDP RS and RA
Discovering Duplicate Addresses Using NDP NS and NA
NDP Summary

Wireless LANs

Chapter 26: Fundamentals of Wireless Networks

Comparing Wired and Wireless Networks
Wireless LAN Topologies
Basic Service Set
Distribution System
Extended Service Set
Independent Basic Service Set
Other Wireless Topologies
Repeater
Workgroup Bridge
Outdoor Bridge
Mesh Network
RF Overview
Wireless Bands and Channels
APs and Wireless Standards

Chapter 27: Analysing Cisco Wireless Architectures

Autonomous AP Architecture
Cloud-based AP Architecture
Split-MAC Architectures
Comparing Wireless LAN Controller Deployments
Cisco AP Modes

Chapter 28: Securing Wireless Networks

Anatomy of a Secure Connection
Authentication
Message Privacy
Message Integrity
Wireless Client Authentication Methods
Open Authentication
WEP
802.1x/EAP
LEAP
EAP-FAST
PEAP
EAP-TLS
Wireless Privacy and Integrity Methods
TKIP
CCMP
GCMP
WPA, WPA2, and WPA3

Chapter 29: Building a Wireless LAN

Connecting a Cisco AP
Accessing a Cisco WLC
Connecting a Cisco WLC
Using WLC Ports
Using WLC Interfaces
Configuring a WLAN
Step 1. Configure a RADIUS Server
Step 2. Create a Dynamic Interface
Step 3. Create a New WLAN
Configuring WLAN Security
Configuring WLAN QoS
Configuring Advanced WLAN Settings
Finalizing WLAN Configuration

IP Access Control Lists

Chapter 30: Introduction to TCP/IP Transport and Applications

TCP/IP Layer 4 Protocols: TCP and UDP
Transmission Control Protocol
Multiplexing Using TCP Port Numbers
Popular TCP/IP Applications
Connection Establishment and Termination
Error Recovery and Reliability
Flow Control Using Windowing
User Datagram Protocol
TCP/IP Applications
Uniform Resource Identifiers
Finding the Web Server Using DNS
Transferring Files with HTTP
How the Receiving Host Identifies the Correct Receiving Application

Chapter 31: Basic IPv4 Access Control Lists

IPv4 Access Control List Basics
ACL Location and Direction
Matching Packets
Taking Action When a Match Occurs
Types of IP ACLs
Standard Numbered IPv4 ACLs
List Logic with IP ACLs
Matching Logic and Command Syntax
Matching the Exact IP Address
Matching a Subset of the Address with Wildcards
Binary Wildcard Masks
Finding the Right Wildcard Mask to Match a Subnet
Matching Any/All Addresses
Implementing Standard IP ACLs
Standard Numbered ACL Example 1
Standard Numbered ACL Example 2
Troubleshooting and Verification Tip
Practice Applying Standard IP ACLs
Practice Building access-list Commands
Reverse Engineering from ACL to Address Range

Chapter 32: Advanced IPv4 Access Control Lists

Extended Numbered IP Access Control Lists
Matching the Protocol, Source IP, and Destination IP
Matching TCP and UDP Port Numbers
Extended IP ACL Configuration
Extended IP Access Lists: Example 1
Extended IP Access Lists: Example 2
Practice Building access-list Commands
Named ACLs and ACL Editing
Named IP Access Lists
Editing ACLs Using Sequence Numbers
Numbered ACL Configuration Versus Named ACL Configuration
ACL Implementation Considerations
Additional Reading on ACLs

Security Services

Chapter 33: Security Architectures

Security Terminology
Common Security Threats
Attacks That Spoof Addresses
Denial-of-Service Attacks
Reflection and Amplification Attacks
Man-in-the-Middle Attacks
Address Spoofing Attack Summary
Reconnaissance Attacks
Buffer Overflow Attacks
Malware
Human Vulnerabilities
Password Vulnerabilities
Password Alternatives
Controlling and Monitoring User Access
Developing a Security Program to Educate Users

Chapter 34: Securing Network Devices

Securing IOS Passwords
Encrypting Older IOS Passwords with service password-encryption
Encoding the Enable Passwords with Hashes
Interactions Between Enable Password and Enable Secret
Making the Enable Secret Truly Secret with a Hash
Improved Hashes for Cisco’s Enable Secret
Encoding the Passwords for Local Usernames
Controlling Password Attacks with ACLs
Firewalls and Intrusion Prevention Systems
Traditional Firewalls
Security Zones
Intrusion Prevention Systems (IPS)
Cisco Next-Generation Firewalls
Cisco Next-Generation IPS

Chapter 35: Implementing Switch Port Security

Port Security Concepts and Configuration
Configuring Port Security
Verifying Port Security
Port Security MAC Addresses
Port Security Violation Modes
Port Security Shutdown Mode
Port Security Protect and Restrict Modes

Chapter 36: Implementing DHCP

Dynamic Host Configuration Protocol
DHCP Concepts
Supporting DHCP for Remote Subnets with DHCP Relay
Information Stored at the DHCP Server
Configuring DHCP Features on Routers and Switches
Configuring DHCP Relay
Configuring a Switch as DHCP Client
Configuring a Router as DHCP Client
Identifying Host IPv4 Settings
Host Settings for IPv4
Host IP Settings on Windows
Host IP Settings on macOS
Host IP Settings on Linux

Chapter 37: DHCP Snooping and ARP Inspection

DHCP Snooping Concepts
A Sample Attack: A Spurious DHCP Server
DHCP Snooping Logic
Filtering DISCOVER Messages Based on MAC Address
Filtering Messages that Release IP Addresses
DHCP Snooping Configuration
Configuring DHCP Snooping on a Layer 2 Switch
Limiting DHCP Message Rates
DHCP Snooping Configuration Summary
Dynamic ARP Inspection
DAI Concepts
Review of Normal IP ARP
Gratuitous ARP as an Attack Vector
Dynamic ARP Inspection Logic
Dynamic ARP Inspection Configuration
Configuring ARP Inspection on a Layer 2 Switch
Limiting DAI Message Rates
Configuring Optional DAI Message Checks
IP ARP Inspection Configuration Summary

IP Services

Chapter 38: Device Management Protocols

System Message Logging (Syslog)
Sending Messages in Real Time to Current Users
Storing Log Messages for Later Review
Log Message Format
Log Message Severity Levels
Configuring and Verifying System Logging
The debug Command and Log Messages
Network Time Protocol (NTP)
Setting the Time and Timezone
Basic NTP Configuration
NTP Reference Clock and Stratum
Redundant NTP Configuration
NTP Using a Loopback Interface for Better Availability
Analyzing Topology Using CDP and LLDP
Examining Information Learned by CDP
Configuring and Verifying CDP
Examining Information Learned by LLDP
Configuring and Verifying LLDP

Chapter 40: Quality of Service (QoS)

Introduction to QoS
QoS: Managing Bandwidth, Delay, Jitter, and Loss
Types of Traffic
Data Applications
Voice and Video Applications
QoS, as mentioned in The Book
QoS on Switches and Routers
Classification and Marking
Classification Basics
Matching (Classification) Basics
Classification of Routers with ACLs and NBAR
Marking IP DSCP and Ethernet CoS
Marking the IP Header
Marking the Ethernet 802.1Q Header
Other Marking Fields
Defining Trust Boundaries
DiffServ Suggested Marking Values
Expedited Forwarding (EF)
Assured Forwarding (AF)
Class Selector (CS)
Guidelines for DSCP Marking Values
Queuing
Round-Robin Scheduling (Prioritization)
Low Latency Queuing
A Prioritization Strategy for Data, Voice, and Video
Shaping and Policing
Policing
Where to Use Policing
Shaping
Setting a Good Shaping Time Interval for Voice and Video
Congestion Avoidance
TCP Windowing Basics
Congestion Avoidance Tools

Chapter 41: Miscellaneous IP Services

First Hop Redundancy Protocol
The Need for Redundancy in Networks
The Need for a First Hop Redundancy Protocol
The Three Solutions for First-Hop Redundancy
HSRP Concepts
HSRP Failover
HSRP Load Balancing
Simple Network Management Protocol
SNMP Variable Reading and Writing: SNMP Get and Set
SNMP Notifications: Traps and Informs
The Management Information Base
Securing SNMP FTP and TFTP
Managing Cisco IOS Images with
FTP/TFTP
The IOS File System
Upgrading IOS Images
Copying a New iOS Image to a Local iOS File System Using TFTP
Verifying IOS Code Integrity with MD5
Copying Images with FTP
The FTP and TFTP Protocols
FTP Protocol Basics
FTP Active and Passive Modes
FTP over TLS (FTP Secure)
TFTP Protocol Basics

Network Architecture

Chapter 42: LAN Architecture

Analyzing Campus LAN Topologies
Two-Tier Campus Design (Collapsed Core)
The Two-Tier Campus Design
Topology Terminology Seen Within a Two-Tier Design
Three-Tier Campus Design (Core)
Topology Design Terminology
Small Office/Home Office
Power over Ethernet (PoE)
PoE Basics
PoE Operation
PoE and LAN Design

Chapter 43: WAN Architecture

Metro Ethernet
Metro Ethernet Physical Design and Topology
Ethernet WAN Services and Topologies
Ethernet Line Service (Point-to-Point)
Ethernet LAN Service (Full Mesh)
Ethernet Tree Service (Hub and Spoke)
Layer 3 Design Using Metro Ethernet
Layer 3 Design with E-Line Service
Layer 3 Design with E-LAN Service
Multiprotocol Label Switching (MPLS)
MPLS VPN Physical Design and Topology
MPLS and Quality of Service
Layer 3 with MPLS VPN
Internet VPNs
Internet Access
Digital Subscriber Line
Cable Internet
Wireless WAN (3G, 4G, LTE, 5G)
Fiber (Ethernet) Internet Access
Internet VPN Fundamentals
Site-to-Site VPNs with IPsec
Remote Access VPNs with TLS
VPN Comparisons

Chapter 44: Cloud Architecture

Server Virtualization
Cisco Server Hardware
Server Virtualization Basics
Networking with Virtual Switches on a
Virtualized Host
The Physical Data Center Network
Workflow with a Virtualized Data Center
Cloud Computing Services
Private Cloud (On-Premise)
Public Cloud
Cloud and the “Software as a Service” Model
Infrastructure as a Service
Software as a Service
(Development) Platform as a Service
WAN Traffic Paths to Reach Cloud Services
Enterprise WAN Connections to Public Cloud
Accessing Public Cloud Services Using the Internet
Pros and Cons of Connecting to Public Cloud with Internet
Private WAN and Internet VPN Access to Public Cloud
Pros and Cons of Connecting to the Cloud with Private WANs
Intercloud Exchanges
Summarizing the Pros and Cons of Public Cloud WAN Options
A Scenario: Branch Offices and the Public Cloud
Migrating Traffic Flows When Migrating to Email SaaS
Branch Of ices with Internet and Private WAN

Network Automation

Chapter 45: Introduction to Controller-Based Networking

SDN and Controller-Based Networks
The Data, Control, and Management Planes
The Data Plane
The Control Plane
The Management Plane
Cisco Switch Data Plane Internals
Controllers and Software-Defined Architecture
Controllers and Centralized Control
The Southbound Interface
The Northbound Interface
Software Defined Architecture Summary
Examples of Network Programmability and SDN
OpenDaylight and OpenFlow
The OpenDaylight Controller
The Cisco Open SDN Controller (OSC)
Cisco Application Centric Infrastructure (ACI)
ACI Physical Design: Spine and Leaf
ACI Operating Model with Intent-Based Networking
Cisco APIC Enterprise Domain
APIC-EM Basics
APIC-EM Replacement
Summary of the SDN Examples
Comparing Traditional Versus Controller-Based Networks
How Automation Impacts Network Management
Comparing Traditional Networks with Controller-Based Networks

Chapter 46: Cisco Software-Defined Access (SDA)

SDA Fabric, Underlay, and Overlay
The SDA Underlay
Using Existing Gear for the SDA Underlay
Using New Gear for the SDA Underlay
The SDA Overlay
VXLAN Tunnels in the Overlay (Data Plane)
LISP for Overlay Discovery and Location (Control Plane)
DNA Center and SDA Operation
Cisco DNA Center
Cisco DNA Center and Scalable Groups
Issues with Traditional IP-Based Security
SDA Security Based on User Groups
DNA Center as a Network Management Platform
DNA Center Similarities to Traditional Management
DNA Center Differences with Traditional Management

Chapter 47: Understanding REST and JSON

REST-Based APIs
REST-Based (RESTful) APIs
Client/Server Architecture
Stateless Operation
Cacheable (or not)
Background: Data and Variables
Simple Variables
List and Dictionary Variables
REST APIs and HTTP
Software CRUD Actions and HTTP Verbs
Using URIs with HTTP to Specify the Resource
Example of REST API Call to DNA Center
Data Serialization and JSON
The Need for a Data Model with APIs
Data Serialization Languages
JSON
XML
YAML
Summary of Data Serialization
Interpreting JSON
Interpreting JSON Key: Value Pairs
Interpreting JSON Objects and Arrays
Minified and Beautified JSON

Chapter 48: Understanding Ansible, Puppet, and Chef

Device Configuration Challenges and Solutions
Configuration Drift
Centralized Configuration Files and Version Control
Configuration Monitoring and Enforcement
Configuration Provisioning
Configuration Templates and Variables
Files That Control Configuration Automation
Ansible, Puppet, and Chef Basics
Ansible
Puppet
Chef
Summary of Configuration Management Tool

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