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Премиум
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    Intro
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    What is Computer Network
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    How we use computer networks every day
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    Why we should use Models to understand Computer Networking
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    Capturing some data using Wireshark
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    Applications and Protocols
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    TCP/IP Model
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    Mapping captured packets data to TCP/IP model layers
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    OSI Model
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    Bits and Bytes
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    Protocol Data Units (PDUs)
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    OSI vs TCP/IP Model
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    Encapsulation and Decapsulation
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    Introduction to the Ethernet Section
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    What is Ethernet
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    Cooper, Fiber and Wireless media
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    NIC
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    MAC Address
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    Hexadecimal vs Binary
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    Structure of the MAC address
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    MAC address Notations
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    Bandwidth
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    Throughput
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    Measuring throughput
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    Latency
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    RTT or PING
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    Measuring RTT using Ping utility
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    Jitter
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    Packet loss rate
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    Summary about Network Properties
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    Network Switch
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    How Network Switch Works
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    Ethernet Frame Header
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    Types of Communication
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    Types of MAC Addresses
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    Full-duplex vs Half-duplex
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    Collision
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    Collision handling Mechanisms
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    Collision Domains
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    Negotiation of the Speed and Duplex
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    Analyzing Unicast Ethernet Frame headers
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    Analyzing Broadcast Ethernet Frames
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    Summary for Ethernet Section
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    Introduction to the Network Layer Section
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    Disadvantages of the switched network
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    What is IP Address
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    IPv4 vs IPv6 IP Addresses
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    IPv4 Address Format
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    MAC Address vs IP Address
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    Types of IP addresses
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    Router
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    LAN vs WAN
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    How Routers interconnect LANs
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    Classes of the IP Addresses
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    Localhost IP Address
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    Accessing Web Server using Localhost IP Address
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    Private vs Public IP Addresses
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    What is Network
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    Private IP Addresses Ranges
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    Public IP Addresses Ranges
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    Static IP Addresses
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    Dynamic IP Addresses
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    Changing Dynamic IP Address to Static and back
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    IPv4 Header
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    Analyzing one of the IPv4 Packets
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    Analyzing other IPv4 Packets
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    Summary for Introduction to Routing Section
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    Introduction to the Networking Section
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    Once again what is Network
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    Network Example 1
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    Network Example 2
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    Network Example with Practice 3
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    Converting Binary to Decimal
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    Decimal to Binary Conversion
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    Binary AND and OR Operators
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    What is Network Mask
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    Same Network or Different
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    Are hosts in the same Network - Example 1
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    Are hosts in the same Network - Example 2
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    Are hosts in the same Network - Example 3
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    How many hosts in the network - Example 1
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    How many hosts in the network - Example 2
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    How many hosts in the network - Example 3
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    What is Subnetting
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    Why Subnetting
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    Subnetting example
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    Nested Subnetting
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    Masks and Subnetting Section Summary
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    Introduction to the ARP and ICMP Section
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    Default gateway
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    What is ARP Protocol
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    ARP Request and Response
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    Analyzing ARP Requests and Responses using Wireshark
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    How packets are sent to remote hosts
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    ICMP Protocol
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    Trying ICMP in action
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    Sending packets to Remote Hosts
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    ARP and ICMP Section Summary
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    Introduction to the Transport Layer Section
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    What is the purpose of the Transport Layer
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    Client and Server
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    Transport Layer Connection
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    Application and Protocol Ports
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    Observing how Web Browser creates different connections
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    Multiplexing and de-multiplexing
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    Port Ranges
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    What is Network Socket
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    Examples of the Network Sockets
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    Multiple Sockets
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    Same ports in different applications
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    Analyzing sockets on the Windows Client
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    Analyzing sockets on the Mac Client
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    How Processes are bound to the Sockets
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    Creating Web Server and making connections to it
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    Trying to start multiple processes on the same port
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    TCP vs UDP
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    TCP Connection Establishment
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    TCP Header
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    Analyzing TCP Connection in Wireshark - PART 1
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    Analyzing TCP Connection in Wireshark - PART 2
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    UDP Protocol
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    Analyzing UDP in Wireshark
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    Transport Layer Section Summary
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    Introduction to the Routing Section
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    What are responsibilities of the Router
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    Routing Table
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    Routing between two networks
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    End-to-end IP packet transmission Example Overview
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    End-to-end IP packet transmission - PART 1
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    End-to-end IP packet transmission - PART 2
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    End-to-end IP packet transmission - PART 3
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    End-to-end IP packet transmission Example Summary
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    Multiple Routers
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    Static vs Dynamic Routes
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    Default Route
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    How Default Route is matched
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    Default routes usage
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    How routers make routing decisions
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    Dynamic Routing Protocols
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    Classless inter-domain routing
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    Routes Summarization
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    RFC1918 Private IP Addresses
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    Autonomous System
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    Autonomous System Number
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    Resolving Public IP Address to ASN
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    IGP vs EGP
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    Distance vector vs Link state Routing Protocols
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    Filtered routes in BGP
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    BGP Prefix Lists
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    Multiple route paths
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    Routing Protocols Metrics
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    Equal cost load balancing
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    Routing via Multiple Routers
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    Using traceroute utility for tracing path to remote servers
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    Routing Section Summary
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    Introduction to the NAT Section
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    Why NAT is needed
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    Types of NAT
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    How NAT works
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    Static NAT
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    Dynamic NAT
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    Dynamic PAT
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    Static PAT
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    Demo - checking NAT settings on the Wireless Router
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    NAT Section Summary
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    Introduction to the DCHP and DNS Section
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    Network configuration parameters of the hosts
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    How DHCP Protocol works
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    Analyzing DHCP Protocol using Wireshark
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    Why domain names are needed
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    Domain Name
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    Uniform Resource Locator (URL)
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    URL Ports and Fragments
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    Domain name levels
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    FQDN
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    DNS in a nutshell
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    How DNS works between client and server
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    Nslookup utility
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    Analyzing DNS Query and Response
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    Facts about Domain Names
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    DNS Registrars and DNS Registry
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    DNS Registry Server Types
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    Responsibilities of the DNS servers
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    DNS Registry vs Library
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    Structure of the DNS Registry vs Library
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    Getting information about Domain names
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    DNS Query Resolution Process
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    DNS Record Types
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    DNS records of my own domain
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    DNS Caching
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    DNS Round Robin
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    Reverse DNS
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    How Reverse DNS works
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    Setting type of the query using extended nslookup
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    DHCP and DNS Section Summary