CCNAv7 IN

Categories

CCNA

Networking Academy CCNAv7

Introduction to Networks

Welcome to the first course of the Cisco Networking Academy CCNAv7 curriculum, Introduction to Networks (ITN). This is the first of three courses that are aligned to the CCNA Certification Exam. ITN contains 17 modules, each with a series of topics.
In Introduction to Networks, you will gain a basic understanding of the way networks operate. You will learn about network components and their functions, as well as how a network is structured, and the architectures used to create networks, including the internet.
But ITN is about more than learning networking concepts. By the end of this course, you will be able to build local area networks (LANs), configure basic settings on routers and switches, and implement internet protocol (IP).
In ITN, every concept that you learn and skill that you develop will be used in the rest of the CCNA curriculum. Now is the time to supercharge your networking career and let Cisco Networking Academy help you to reach your goal!

1 – Networking Today
1.0 – Introduction
1.1 – Networks Affect our Lives
1.1.1 – Networks Connect Us
1.1.3 – No Boundaries
1.2 – Network Components
1.2.1 – Host Roles
1.2.2 – Peer-to-Peer
1.2.3 – End Devices
1.2.4 – Intermediary Devices
1.2.5 – Network Media
1.3 – Network Representations and Topologies
1.3.1 – Network Representations
1.3.2 – Topology Diagrams
1.4 – Common Types of Networks
1.4.1 – Networks of Many Sizes
1.4.2 – LANs and WANs
1.4.3 – The Internet
1.4.4 – Intranets and Extranets
1.5 – Internet Connections
1.5.1 – Internet Access Technologies
1.5.2 – Home and Small Office Internet Connections
1.5.3 – Businesses Internet Connections
1.5.4 – The Converging Network
1.6 – Reliable Networks
1.6.1 – Network Architecture
1.6.2 – Fault Tolerance
1.6.3 – Scalability
1.6.4 – Quality of Service
1.6.5 – Network Security
1.7 – Network Trends
1.7.1 – Recent Trends
1.7.2 – Bring Your Own Device (BYOD)
1.7.3 – Online Collaboration
1.7.4 – Video Communications
1.7.5 – Video – Cisco Webex for Huddles
1.7.6 – Cloud Computing
1.7.7 – Technology Trends in the Home
1.7.8 – Powerline Networking
1.7.9 – Wireless Broadband
1.8 – Network Security
1.8.1 – Security Threats
1.8.2 – Security Solutions
1.9 – The IT Professional
1.9.1 – CCNA
1.9.2 – Networking Jobs
1.9.3 – Lab – Research IT and Networking Job Opportunities
1.10 – Module Practice and Quiz
1.10.1 – What did I learn in this module?
2 – Basic Switch and End Device Configuration
2.0 – Introduction
2.0.1 – Why should I take this module?
2.0.2 – What will I learn to do in this module?
2.1 – Cisco IOS Access
2.1.1 – Operating Systems
2.1.2 – GUI
2.1.3 – Purpose of an OS
2.1.4 – Access Methods
2.1.5 – Terminal Emulation Programs
2.1.6 – Check Your Understanding – Cisco IOS Access
2.2 – IOS Navigation
2.2.1 – Primary Command Modes
2.2.2 – Configuration Mode and Subconfiguration Modes
2.2.3 – Video – IOS CLI Primary Command Modes
2.2.4 – Navigate Between IOS Modes
2.2.5 – Video – Navigate Between IOS Modes
2.2.6 – A Note About Syntax Checker Activities
2.2.7 – Syntax Checker – Navigate Between IOS Modes
2.2.8 – Check Your Understanding – IOS Navigation
2.3 – The Command Structure
2.3.1 – Basic IOS Command Structure
2.3.2 – IOS Command Syntax Check
2.3.3 – IOS Help Features
2.3.4 – Video – Context Sensitive Help and Command Syntax Check
2.3.5 – Hot Keys and Shortcuts
2.4 – Basic Device Configuration
2.4.1 – Device Names
2.4.2 – Password Guidelines
2.4.3 – Configure Passwords
2.4.4 – Encrypt Passwords
2.4.5 – Banner Messages
2.5 – Save Configurations
2.5.1 – Configuration Files
2.5.2 – Alter the Running Configuration
2.5.3 – Video – Alter the Running Configuration
2.5.4 – Capture Configuration to a Text File
2.6 – Ports and Addresses
2.6.1 – IP Addresses
2.6.2 – Interfaces and Ports
2.7 – Configure IP Addressing
2.7.1 – Manual IP Address Configuration for End Devices
2.7.2 – Automatic IP Address Configuration for End Devices
2.7.3 – Syntax Checker – Verify Windows PC IP Configuration
2.7.4 – Switch Virtual Interface Configuration
2.8 – Verify Connectivity
2.8.1 – Video Activity – Test the Interface Assignment
2.8.2 – Video Activity – Test End-to-End Connectivity
3 – Protocols and Models
3.0 – Introduction
3.0.1 – Why should I take this module?
3.0.2 – What will I learn to do in this module?
3.0.3 – Class Activity – Design a Communications System
3.1 – The Rules
3.1.1 – Video – Devices in a Bubble
3.1.2 – Communications Fundamentals
3.1.3 – Communication Protocols
3.1.4 – Rule Establishment
3.1.5 – Network Protocol Requirements
3.1.6 – Message Encoding
3.1.7 – Message Formatting and Encapsulation
3.1.8 – Message Size
3.1.9 – Message Timing
3.1.10 – Message Delivery Options
3.1.11 – A Note About the Node Icon
3.1.12 – Check Your Understanding – The Rules
3.2 – Protocols
3.2.1 – Network Protocol Overview
3.2.2 – Network Protocol Functions
3.2.3 – Protocol Interaction
3.2.4 – Check Your Understanding – Protocols
3.3 – Protocol Suites
3.3.1 – Network Protocol Suites
3.3.2 – Evolution of Protocol Suites
3.3.3 – TCP/IP Protocol Example
3.3.4 – TCP/IP Protocol Suite
3.3.5 – TCP/IP Communication Process
3.3.6 – Check Your Understanding – Protocol Suites
3.4 – Standards Organizations
3.4.1 – Open Standards
3.4.2 – Internet Standards
3.4.3 – Electronic and Communications Standards
3.4.4 – Lab – Research Networking Standards
3.4.5 – Check Your Understanding – Standards Organizations
3.5 – Reference Models
3.5.1 – The Benefits of Using a Layered Model
3.5.2 – The OSI Reference Model
3.5.3 – The TCP/IP Protocol Model
3.5.4 – OSI and TCP/IP Model Comparison
3.5.5 – Packet Tracer – Investigate the TCP/IP and OSI Models in Action
3.6 – Data Encapsulation
3.6.1 – Segmenting Messages
3.6.2 – Sequencing
3.6.3 – Protocol Data Units
3.6.4 – Encapsulation Example
3.6.5 – De-encapsulation Example
3.6.6 – Check Your Understanding – Data Encapsulation
3.7 – Data Access
3.7.1 – Addresses
3.7.2 – Layer 3 Logical Address
3.7.3 – Devices on the Same Network
3.7.4 – Role of the Data Link Layer Addresses: Same IP Network
3.7.5 – Devices on a Remote Network
3.7.6 – Role of the Network Layer Addresses
3.7.7 – Role of the Data Link Layer Addresses: Different IP Networks
3.7.8 – Data Link Addresses
4 – Physical Layer
4.0 – Introduction
4.1 – Purpose of the Physical Layer
4.1.1 – The Physical Connection
4.1.2 – The Physical Layer
4.1.3 – Check Your Understanding – Purpose of the Physical Layer
4.2 – Physical Layer Characteristics
4.2.1 – Physical Layer Standards
4.2.2 – Physical Components
4.2.3 – Encoding
4.2.4 – Signaling
4.2.5 – Bandwidth
4.2.6 – Bandwidth Terminology
4.2.7 – Check Your Understanding – Physical Layer Characteristics
4.3 – Copper Cabling
4.3.1 – Characteristics of Copper Cabling
4.3.2 – Types of Copper Cabling
4.3.3 – Unshielded twisted-pair (UTP)
4.3.4 – Shielded twisted-pair (STP)
4.3.5 – Coaxial cable
4.3.6 – Check Your Understanding – Copper Cabling
4.4 – UTP Cabling
4.4.2 – UTP Cabling Standards and Connectors
4.4.3 – Straight-through and Crossover UTP Cables
4.4.4 – Activity – Cable Pinouts
4.5 – Fiber-Optic Cabling
4.5.1 – Properties of Fiber-Optic Cabling
4.5.2 – Types of Fiber Media
4.5.3 – Fiber-Optic Cabling Usage
4.5.4 – Fiber-Optic Connectors
4.5.5 – Fiber Patch Cords
4.5.6 – Fiber versus Copper
4.5.7 – Check Your Understanding – Fiber-Optic Cabling
4.6 – Wireless Media
4.6.1 – Properties of Wireless Media
4.6.2 – Types of Wireless Media
4.6.3 – Wireless LAN
5 – Number Systems
5.0 – Introduction
5.0.1 – Why should I take this module?
5.0.2 – What will I learn to do in this module?
5.1 – Binary Number System
5.1.1 – Binary and IPv4 Addresses
5.1.2 – Video – Converting Between Binary and Decimal Numbering Systems
5.1.3 – Binary Positional Notation
5.1.4 – Check Your Understanding – Binary Number System
5.1.5 – Convert Binary to Decimal
5.1.6 – Activity – Binary to Decimal Conversions
5.1.7 – Decimal to Binary Conversion
5.1.8 – Decimal to Binary Conversion Example
5.1.9 – Activity – Decimal to Binary Conversions
5.1.10 – Activity – Binary Game
5.1.11 – IPv4 Addresses
5.2 – Hexadecimal Number System
5.2.1 – Hexadecimal and IPv6 Addresses
5.2.2 – Video – Converting Between Hexadecimal and Decimal Numbering Systems
5.2.3 – Decimal to Hexadecimal Conversions
6 – Data Link Layer
6.0 – Introduction
6.0.1 – Why should I take this module?
6.0.2 – What will I learn to do in this module?
6.1 – Purpose of the Data Link Layer
6.1.1 – The Data Link Layer
6.1.2 – IEEE 802 LAN/MAN Data Link Sublayers
6.1.3 – Providing Access to Media
6.1.4 – Data Link Layer Standards
6.1.5 – Check Your Understanding – Purpose of the Data Link Layer
6.2 – Topologies
6.2.1 – Physical and Logical Topologies
6.2.2 – WAN Topologies
6.2.3 – Point-to-Point WAN Topology
6.2.4 – LAN Topologies
6.2.5 – Half and Full Duplex Communication
6.2.6 – Access Control Methods
6.2.7 – Contention-Based Access – CSMA/CD
6.2.8 – Contention-Based Access – CSMA/CA
6.3 – Data Link Frame
6.3.1 – The Frame
6.3.2 – Frame Fields
6.3.3 – Layer 2 Addresses
6.3.4 – LAN and WAN Frames
7 – Ethernet Switching
7.0 – Introduction
7.1 – Ethernet Frames
7.1.1 – Ethernet Encapsulation
7.1.2 – Data Link Sublayers
7.1.3 – MAC Sublayer
7.1.4 – Ethernet Frame Fields
7.1.5 – Check Your Understanding – Ethernet Switching
7.1.6 – Lab – Use Wireshark to Examine Ethernet Frames
7.2 – Ethernet MAC Address
7.2.1 – MAC Address and Hexadecimal
7.2.2 – Ethernet MAC Address
7.2.3 – Frame Processing
7.2.4 – Unicast MAC Address
7.2.5 – Broadcast MAC Address
7.2.6 – Multicast MAC Address
7.3 – The MAC Address Table
7.3.1 – Switch Fundamentals
7.3.2 – Switch Learning and Forwarding
7.3.3 – Filtering Frames
7.3.4 – Video – MAC Address Tables on Connected Switches
7.3.5 – Video – Sending the Frame to the Default Gateway
7.3.6 – Activity – Switch It!
7.3.7 – Lab – View the Switch MAC Address Table
7.4 – Switch Speeds and Forwarding Methods
7.4.1 – Frame Forwarding Methods on Cisco Switches
7.4.2 – Cut-Through Switching
7.4.3 – Memory Buffering on Switches
7.4.4 – Duplex and Speed Settings
7.4.5 – Auto-MDIX
7.4.6 – Check Your Understanding – Switch Speeds and Forwarding Methods
7.5 – Module Practice and Quiz
7.5.1 – What did I learn in this module?
7.5.2 – Module Quiz – Ethernet Switching
8 – Network Layer
8.0 – Introduction
8.0.1 – Why should I take this module?
8.0.2 – What will I learn to do in this module?
8.1 – Network Layer Characteristics
8.1.1 – The Network Layer
8.1.2 – IP Encapsulation
8.1.3 – Characteristics of IP
8.1.4 – Connectionless
8.1.5 – Best Effort
8.1.6 – Media Independent
8.1.7 – Check Your Understanding – IP Characteristics
8.2 – IPv4 Packet
8.2.1 – IPv4 Packet Header
8.2.2 – IPv4 Packet Header Fields
8.2.3 – Video – Sample IPv4 Headers in Wireshark
8.2.4 – Check Your Understanding – IPv4 Packet
8.3 – IPv6 Packet
8.3.1 – Limitations of IPv4
8.3.2 – IPv6 Overview
8.3.3 – IPv4 Packet Header Fields in the IPv6 Packet Header
8.3.4 – IPv6 Packet Header
8.3.5 – Video – Sample IPv6 Headers in Wireshark
8.3.6 – Check Your Understanding – IPv6 Packet
8.4 – How a Host Routes
8.4.1 – Host Forwarding Decision
8.4.2 – Default Gateway
8.4.3 – A Host Routes to the Default Gateway
8.4.4 – Host Routing Tables
8.4.5 – Check Your Understanding – How a Host Routes
8.5 – Introduction to Routing
8.5.1 – Router Packet Forwarding Decision
8.5.2 – IP Router Routing Table
8.5.3 – Static Routing
8.5.4 – Dynamic Routing
8.5.5 – Video- IPv4 Router Routing Tables
8.5.6 – Introduction to an IPv4 Routing Table
8.5.7 – Check Your Understanding – Introduction to Routing
8.6 – Module Practice and Quiz
8.6.1 – What did I learn in this module?
8.6.2 – Module Quiz – Network Layer
9 – Address Resolution
9.0 – Introduction
9.0.1 – Why should I take this module?
9.0.2 – What will I learn to do in this module?
9.1 – MAC and IP
9.1.1 – Destination on Same Network
9.1.2 – Destination on Remote Network
9.1.3 – Packet Tracer – Identify MAC and IP Addresses
9.1.4 – Check Your Understanding – MAC and IP
9.2 – ARP
9.2.1 – ARP Overview
9.2.2 – ARP Functions
9.2.3 – Video – ARP Request
9.2.4 – Video – ARP Operation – ARP Reply
9.2.5 – Video – ARP Role in Remote Communications
9.2.6 – Removing Entries from an ARP Table
9.2.7 – ARP Tables on Networking Devices
9.2.8 – ARP Issues – ARP Broadcasts and ARP Spoofing
9.2.9 – Packet Tracer – Examine the ARP Table
9.2.10 – Check Your Understanding – ARP
9.3 – IPv6 Neighbor Discovery
9.3.1 – Video – IPv6 Neighbor Discovery
9.3.2 – IPv6 Neighbor Discovery Messages
9.3.3 – IPv6 Neighbor Discovery – Address Resolution
9.3.4 – Packet Tracer – IPv6 Neighbor Discovery
9.3.5 – Check Your Understanding – Neighbor Discovery
9.4 – Module Practice and Quiz
9.4.1 – What did I learn in this module?
9.4.2 – Module Quiz – Address Resolution
10 – Basic Router Configuration
10.0 – Introduction
10.0.1 – Why should I take this module?
10.0.2 – What will I learn in this module?
10.1 – Configure Initial Router Settings
10.1.1 – Basic Router Configuration Steps
10.1.2 – Basic Router Configuration Example
10.1.3 – Syntax Checker – Configure Initial Router Settings
10.1.4 – Packet Tracer – Configure Initial Router Settings
10.2 – Configure Interfaces
10.2.1 – Configure Router Interfaces
10.2.2 – Configure Router Interfaces Example
10.2.3 – Verify Interface Configuration
10.2.4 – Configuration Verification Commands
10.2.5 – Syntax Checker – Configure Interfaces
10.3 – Configure the Default Gateway
10.3.1 – Default Gateway on a Host
10.3.2 – Default Gateway on a Switch
11 – IPv4 Addressing
11.0 – Introduction
11.0.1 – Why should I take this module?
11.0.2 – What will I learn to do in this module?
11.1 – IPv4 Address Structure
11.1.1 – Network and Host Portions
11.1.2 – The Subnet Mask
11.1.3 – The Prefix Length
11.1.4 – Determining the Network: Logical AND
11.1.5 – Video – Network, Host and Broadcast Addresses
11.1.6 – Network, Host, and Broadcast Addresses
11.1.7 – Activity – ANDing to Determine the Network Address
11.1.8 – Check Your Understanding – IPv4 Address Structure
11.2 – IPv4 Unicast, Broadcast, and Multicast
11.2.1 – Unicast
11.2.2 – Broadcast
11.2.3 – Multicast
11.2.4 – Activity – Unicast, Broadcast, or Multicast
11.3 – Types of IPv4 Addresses
11.3.1 – Public and Private IPv4 Addresses
11.3.2 – Routing to the Internet
11.3.3 – Activity – Pass or Block IPv4 Addresses
11.3.4 – Special Use IPv4 Addresses
11.3.5 – Legacy Classful Addressing
11.3.6 – Assignment of IP Addresses
11.3.7 – Activity – Public or Private IPv4 Address
11.3.8 – Check Your Understanding – Types of IPv4 Addresses
11.4 – Network Segmentation
11.4.1 – Broadcast Domains and Segmentation
11.4.2 – Problems with Large Broadcast Domains
11.4.3 – Reasons for Segmenting Networks
11.4.4 – Check Your Understanding – Network Segmentation
11.5 – Subnet an IPv4 Network
11.5.1 – Subnet on an Octet Boundary
11.5.2 – Subnet within an Octet Boundary
11.5.3 – Video – The Subnet Mask
11.5.4 – Video – Subnet with the Magic Number
11.5.5 – Packet Tracer – Subnet an IPv4 Network
11.6 – Subnet a Slash 16 and a Slash 8 Prefix
11.6.1 – Create Subnets with a Slash 16 prefix
11.6.2 – Create 100 Subnets with a Slash 16 prefix
11.6.3 – Create 1000 Subnets with a Slash 8 prefix
11.6.4 – Video – Subnet Across Multiple Octets
11.6.5 – Activity – Calculate the Subnet Mask
11.6.6 – Lab – Calculate IPv4 Subnets
11.7 – Subnet to Meet Requirements
11.7.1 – Subnet Private versus Public IPv4 Address Space
11.7.2 – Minimize Unused Host IPv4 Addresses and Maximize Subnets
11.8 – VLSM
11.8.1 – Video – VLSM Basics
11.8.2 – Video – VLSM Example
11.8.3 – IPv4 Address Conservation
11.8.4 – VLSM
11.8.5 – VLSM Topology Address Assignment
11.8.6 – Activity – VLSM Practice
11.9 – Structured Design
11.9.1 – IPv4 Network Address Planning
11.9.2 – Device Address Assignment
11.9.3 – Packet Tracer – VLSM Design and Implementation Practice
11.10 – Module Practice and Quiz
11.10.1 – Packet Tracer – Design and Implement a VLSM Addressing Scheme
11.10.2 – Lab – Design and Implement a VLSM Addressing Scheme
11.10.3 – What did I learn in this module?
11.10.4 – Module Quiz – IPv4 Addressing
12 – IPv6 Addressing
12.0 – Introduction
12.0.1 – Why should I take this module?
12.0.2 – What will I learn in this module?
12.1 – IPv4 Issues
12.1.1 – Need for IPv6
12.1.2 – IPv4 and IPv6 Coexistence
12.1.3 – Check Your Understanding – IPv4 Issues
12.2 – IPv6 Address Representation
12.2.1 – IPv6 Addressing Formats
12.2.2 – Rule 1 – Omit Leading Zeros
12.2.3 – Rule 2 – Double Colon
12.2.4 – Activity – IPv6 Address Representation
12.3 – IPv6 Address Types
12.3.1 – Unicast, Multicast, Anycast
12.3.2 – IPv6 Prefix Length
12.3.3 – Types of IPv6 Unicast Addresses
12.3.4 – A Note About the Unique Local Address
12.3.5 – IPv6 GUA
12.3.6 – IPv6 GUA Structure
12.3.7 – IPv6 LLA
12.3.8 – Check Your Understanding – IPv6 Address Types
12.4 – GUA and LLA Static Configuration
12.4.1 – Static GUA Configuration on a Router
12.4.2 – Static GUA Configuration on a Windows Host
12.4.3 – Static Configuration of a Link-Local Unicast Address
12.4.4 – Syntax Checker – GUA and LLA Static Configuration
12.5 – Dynamic Addressing for IPv6 GUAs
12.5.1 – RS and RA Messages
12.5.2 – Method 1: SLAAC
12.5.3 – Method 2: SLAAC and Stateless DHCPv6
12.5.4 – Method 3: Stateful DHCPv6
12.5.5 – EUI-64 Process vs. Randomly Generated
12.5.6 – EUI-64 Process
12.5.7 – Randomly Generated Interface IDs
12.5.8 – Check Your Understanding – Dynamic Addressing for IPv6 GUAs
12.6 – Dynamic Addressing for IPv6 LLAs
12.6.1 – Dynamic LLAs
12.6.2 – Dynamic LLAs on Windows
12.6.3 – Dynamic LLAs on Cisco Routers
12.6.4 – Verify IPv6 Address Configuration
12.6.5 – Syntax Checker – Verify IPv6 Address Configuration
12.6.6 – Packet Tracer – Configure IPv6 Addressing
12.7 – IPv6 Multicast Addresses
12.7.1 – Assigned IPv6 Multicast Addresses
12.7.2 – Well-Known IPv6 Multicast Addresses
12.7.3 – Solicited-Node IPv6 Multicast Addresses
12.7.4 – Lab – Identify IPv6 Addresses
12.8 – Subnet an IPv6 Network
12.8.1 – Subnet Using the Subnet ID
12.8.2 – IPv6 Subnetting Example
12.8.3 – IPv6 Subnet Allocation
12.8.4 – Router Configured with IPv6 Subnets
12.8.5 – Check Your Understanding – Subnet an IPv6 Network
12.9 – Module Practice and Quiz
12.9.1 – Packet Tracer – Implement a Subnetted IPv6 Addressing Scheme
12.9.2 – Lab – Configure IPv6 Addresses on Network Devices
12.9.3 – What did I learn in this module?
12.9.4 – Module Quiz – IPv6 Addressing
13 – ICMP
13.0 – Introduction
13.0.1 – Why should I take this module?
13.0.2 – What will I learn in this module?
13.1 – ICMP Messages
13.1.1 – ICMPv4 and ICMPv6 Messages
13.1.2 – Host Reachability
13.1.3 – Destination or Service Unreachable
13.1.4 – Time Exceeded
13.1.5 – ICMPv6 Messages
13.1.6 – Check Your Understanding – ICMP Messages
13.2 – Ping and Traceroute Tests
13.2.1 – Ping – Test Connectivity
13.2.2 – Ping the Loopback
13.2.3 – Ping the Default Gateway
13.2.4 – Ping a Remote Host
13.2.5 – Traceroute – Test the Path
13.2.6 – Packet Tracer – Verify IPv4 and IPv6 Addressing
13.2.7 – Packet Tracer – Use Ping and Traceroute to Test Network Connectivity
13.3 – Module Practice and Quiz
13.3.1 – Packet Tracer – Use ICMP to Test and Correct Network Connectivity
13.3.2 – Lab – Use Ping and Traceroute to Test Network Connectivity
13.3.3 – What did I learn in this module?
14 – Transport Layer
14.0 – Introduction
14.0.1 – Why should I take this module?
14.0.2 – What will I learn to do in this module?
14.1 – Transportation of Data
14.1.1 – Role of the Transport Layer
14.1.2 – Transport Layer Responsibilities
14.1.3 – Transport Layer Protocols
14.1.4 – Transmission Control Protocol (TCP)
14.1.5 – User Datagram Protocol (UDP)
14.1.6 – The Right Transport Layer Protocol for the Right Application
14.1.7 – Check Your Understanding – Transportation of Data
14.2 – TCP Overview
14.2.1 – TCP Features
14.2.2 – TCP Header
14.2.3 – TCP Header Fields
14.2.4 – Applications that use TCP
14.2.5 – Check Your Understanding – TCP Overview
14.3 – UDP Overview
14.3.1 – UDP Features
14.3.2 – UDP Header
14.3.3 – UDP Header Fields
14.3.4 – Applications that use UDP
14.3.5 – Check Your Understanding – UDP Overview
14.4 – Port Numbers
14.4.1 – Multiple Separate Communications
14.4.2 – Socket Pairs
14.4.3 – Port Number Groups
14.4.4 – The netstat Command
14.4.5 – Check Your Understanding – Port Numbers
14.5 – TCP Communication Process
14.5.1 – TCP Server Processes
14.5.2 – TCP Connection Establishment
14.5.3 – Session Termination
14.5.4 – TCP Three-way Handshake Analysis
14.5.5 – Video – TCP 3-Way Handshake
14.5.6 – Check Your Understanding – TCP Communication Process
14.6 – Reliability and Flow Control
14.6.1 – TCP Reliability – Guaranteed and Ordered Delivery
14.6.2 – Video – TCP Reliability – Sequence Numbers and Acknowledgments
14.6.3 – TCP Reliability – Data Loss and Retransmission
14.6.4 – Video – TCP Reliability – Data Loss and Retransmission
14.6.5 – TCP Flow Control – Window Size and Acknowledgments
14.6.6 – TCP Flow Control – Maximum Segment Size (MSS)
14.6.7 – TCP Flow Control – Congestion Avoidance
14.6.8 – Check Your Understanding – Reliability and Flow Control
14.7 – UDP Communication
14.7.1 – UDP Low Overhead versus Reliability
14.7.2 – UDP Datagram Reassembly
14.7.3 – UDP Server Processes and Requests
14.7.4 – UDP Client Processes
14.7.5 – Check Your Understanding – UDP Communication
14.8 – Module Practice and Quiz
14.8.1 – Packet Tracer – TCP and UDP Communications
14.8.2 – What did I learn in this module?
14.8.3 – Module Quiz – Transport Layer
15 – Application Layer
15.0 – Introduction
15.0.1 – Why should I take this module?
15.0.2 – What will I learn to do in this module?
15.1 – Application, Presentation, and Session
15.1.1 – Application Layer
15.1.2 – Presentation and Session Layer
15.1.3 – TCP/IP Application Layer Protocols
15.1.4 – Check Your Understanding – Application, Session, Presentation
15.2 – Peer-to-Peer
15.2.1 – Client-Server Model
15.2.2 – Peer-to-Peer Networks
15.2.3 – Peer-to-Peer Applications
15.2.4 – Common P2P Applications
15.2.5 – Check Your Understanding – Peer-to-Peer
15.3 – Web and Email Protocols
15.3.1 – Hypertext Transfer Protocol and Hypertext Markup Language
15.3.2 – HTTP and HTTPS
15.3.3 – Email Protocols
15.3.5 – Check Your Understanding – Web and Email Protocols
15.4 – IP Addressing Services
15.4.1 – Domain Name Service
15.4.2 – DNS Message Format
15.4.3 – DNS Hierarchy
15.4.4 – The nslookup Command
15.4.5 – Syntax Checker – The nslookup Command
15.4.6 – Dynamic Host Configuration Protocol
15.4.7 – DHCP Operation
15.4.8 – Lab – Observe DNS Resolution
15.4.9 – Check Your Understanding – IP Addressing Services
15.5 – File Sharing Services
15.5.1 – File Transfer Protocol
15.5.2 – Server Message Block
15.5.3 – Check Your Understanding – File Sharing Services
15.6 – Module Practice and Quiz
15.6.1 – What did I learn in this module?
15.6.2 – Module Quiz – Application Layer
16 – Network Security Fundamentals
16.0 – Introduction
16.0.1 – Why should I take this module?
16.0.2 – What will I learn to do in this module?
16.1 – Security Threats and Vulnerabilities
16.1.1 – Types of Threats
16.1.2 – Types of Vulnerabilities
16.1.3 – Physical Security
16.1.4 – Check Your Understanding – Security Threats and Vulnerabilities
16.2 – Network Attacks
16.2.1 – Types of Malware
16.2.2 – Reconnaissance Attacks
16.2.3 – Access Attacks
16.2.4 – Denial of Service Attacks
16.2.5 – Check Your Understanding – Network Attacks
16.2.6 – Lab – Research Network Security Threats
16.3 – Network Attack Mitigations
16.3.1 – The Defense-in-Depth Approach
16.3.2 – Keep Backups
16.3.3 – Upgrade, Update, and Patch
16.3.4 – Authentication, Authorization, and Accounting
16.3.5 – Firewalls
16.3.6 – Types of Firewalls
16.3.7 – Endpoint Security
16.3.8 – Check Your Understanding – Network Attack Mitigation
16.4 – Device Security
16.4.1 – Cisco AutoSecure
16.4.2 – Passwords
16.4.3 – Additional Password Security
16.4.4 – Enable SSH
16.4.5 – Disable Unused Services
17 – Build a Small Network
17.0 – Introduction
17.0.1 – Why should I take this module?
17.0.2 – What will I learn to do in this module?
17.1 – Devices in a Small Network
17.1.1 – Small Network Topologies
17.1.2 – Device Selection for a Small Network
17.1.3 – IP Addressing for a Small Network
17.1.4 – Redundancy in a Small Network
17.1.5 – Traffic Management
17.2 – Small Network Applications and Protocols
17.2.1 – Common Applications
17.2.2 – Common Protocols
17.2.3 – Voice and Video Applications
17.3 – Scale to Larger Networks
17.3.1 – Small Network Growth
17.3.2 – Protocol Analysis
17.3.3 – Employee Network Utilization
17.4 – Verify Connectivity
17.4.1 – Verify Connectivity with Ping
17.4.2 – Extended Ping
17.4.3 – Verify Connectivity with Traceroute
17.4.4 – Extended Traceroute
17.4.5 – Network Baseline
17.5 – Host and IOS Commands
17.5.1 – IP Configuration on a Windows Host
17.5.2 – IP Configuration on a Linux Host
17.5.3 – IP Configuration on a macOS Host
17.5.4 – The arp Command
7.5.5 – Common show Commands Revisited
17.5.6 – The show cdp neighbors Command
17.5.7 – The show ip interface brief Command
17.6 – Troubleshooting Methodologies
17.6.1 – Basic Troubleshooting Approaches
17.6.2 – Resolve or Escalate?
17.6.3 – The debug Command
17.6.4 – The terminal monitor Command
17.7 – Troubleshooting Scenarios
17.7.1 – Duplex Operation and Mismatch Issues
17.7.2 – IP Addressing Issues on IOS Devices
17.7.3 – IP Addressing Issues on End Devices
17.7.4 – Default Gateway Issues
17.7.5 – Troubleshooting DNS Issues