ComputerNetwork.txt

>> Note:
    > Open in VSC for best experience
    > Introduction ke liye NesoAcademy (link given below) ke suru ke videos MUST dekho!!
    > Flow ke according (means not layer ke according) wala Classification bhi given hai resources me, use that link for topic matching!! OR you can also follow it as the primary flow.
    > Jo chapter wise banaya hu wo ma'am se most match kar rha. (Still kuch kuch cheje missing ho sakti)
    > Networking kai jagah kai trah se pada rhe sab to don't worry ke topic match na kar rha keep following 1 resource sab aayega jiska jab time hoga fir bhi na mile to topic wala notes dekhlo or simply google it.
    > Must see gatevidyalay(link given below) se Subnetting wala section ma'am bohot padai hai usko and given Classification me nhi hai wo
    > (M) means ma'am ke muh se kabhi to suna hu (Ab mai har common topic pe na lagaunga, sirf aise topics pe jinko leke confussion ho)
    > Sab kuch bohot deep me na padna jyada deep wale skip. Sirf viva layak padlo!!
    > Last me ma'am jo jo padaye hai till lecture 13 wosab as keywords likh diya hu.

>> Resources:
    YT: 
        NesoAcademy: https://www.youtube.com/playlist?list=PLBlnK6fEyqRgMCUAG0XRw78UA8qnv6jEx
        GateSmasher: https://www.youtube.com/playlist?list=PLxCzCOWd7aiGFBD2-2joCpWOLUrDLvVV_

    Notes:
        Hand Written (Last me jaha unit-1 hai waha 2 3 4 karte jana next unit aata rahega...):
            Full Note: https://www.slideshare.net/nandini72/computer-network-notes-handwritten-unit-1
        Text: 
            For Full Note(lecturenotes): https://lecturenotes.in/notes/15529-note-for-computer-network-cn-by-tulasi-miriyala?reading=true
            Topic Wise (GateVidyalay): https://www.gatevidyalay.com/computer-networks/

    Classification accorfing to Flow:
        https://examupdates.in/computer-network-notes/

CLASSIFICATION (Reference: Primarly lecturenotes)
Chapter 01: Introduction
    1) Basic Communication model
        a) Source
        b) Transmitter
        c) Transmission System
        d) Reciever
        e) Destination

    2) Data Communication
        a) Local
        b) Remote
            A) Message
            B) Sender
            C) Receiver
            D) Medium
            E) Protocols
        
    3) Network Topology
        a) BUS Topology
        b) RING Topology
        c) STAR Topology
        d) MESH Topology
        e) TREE Topology
        f) HYBRID Topology

    4) Transmisson Modes in Computer Network
        a) Simplex Mode
        b) Half Duplex Mode
        c) Full Duplex Mode

    5) Types of Communication network
        a) LAN
        b) MAN
        c) WAN
        d) Wireless Network
        e) Inter Network
        f) Connection Oriented and Connectionless Services

    6) ISO/OSI Model in Communication Networks
        a) Features of OSI Models
        b) OSI model Layers
            A) Physical Layer
            B) Data link Layer
            C) Network Layer
            D) Transport Layer
            E) Session Layer
            F) Presentation Layer
            G) Application Layer

        c) TCP/IP Reference Model
            A) Host-to-Network Layer
            B) Interner Layer
            C) Transport Layer
            D) Application layer

        d) OSI vs TCP/IP Model


Chapter 02: Data Communications
    1) Transmission Mediums
        a) Bounded/Guided Media
            A) Twisted
                i) Shielded
                ii) UnShielded
            B) Coaxial Cables
                i) Baseband
                ii) Broadband
        b) Fiber Optic Cable
        c) UnBounded/UnGuided Media
            i) Radio Transmission
            ii) Microwave Transmission
    
    2) Multiplexing
        a) Frequency Division Multiplexing
        b) Wave Division Multiplexing
        c) Time Division Multiplexing
            A) Synchronous TDM
            B) Asynchronous TDM

    3) Switching---------------(M) Bohot joor deke padai the
        a) Message Switching
        b) Packet Switching
        c) Circuit Switching
    
    4) Transmission in ISDN
        a) Basic Rate Interface (BRI)----(M)
        b) Primary Rate Interface (PRI)--(M)
        c) Narrowband ISDN (N-ISDN)------(M)
        d) Broadband ISDN (B-ISDN)-------(M)
    
    5) ATM Network (Asynchronous Transfer Mode)
        a) ATM Adaptive Layer


Chapter 03: Data Link Layer
    1) Has two sub-layer
        a) Logical Link Control
        b) Media Access Control
    2) Framing
    3) Addressing
    4) Synchronization
    5) Multi-Access
    6) Error Control
        a) Types of Error
            A) Single Bit Error
            B) Multiple Bit Error
            C) Burst Error
        b) Error Control Mechanism ways
            A) Error Detection
                i) Parity Check--------------------(M)
                ii) Cyclic Redundancy Check (CRC)--(M)
            B) Error Correction
                i) Backward Error Correction
                ii) Forward Error Correction
    7) Flow Control
        a) Types of Mechanism
            i) Stop and wait
            ii) Sliding Window
        b) Error Control
            i) Error Detection
            ii) Positive ACK
            iii) Negative ACK
            iv) Retransmission
            v) Stop-and-wait ARQ
            vi) Go-Back-N ARQ
            vii) Selective Repeat ARQ 
    8) IEEE STANDARD FOR LAN'S & MAN'S
        a) Data link layer
            i) LLC sublayer
            ii) MAC sublayer
        b) Physical layer


Chapter 04: Design Issue in Network
    1) Routing
        a) Hop Count
        b) Bandwidth
        c) Metric
        d) Prefix-length
        e) Delay
        Routing Types
            A) Broadcast Routing
            B) Multicast Routing
            C) Anycast Routing
            D) Unicast Routing Protocol
                i) Distance Vector Routing Protocol
                ii) Link State Routing Protocol
            E) Multicast Routing Protocol
                i) DVMRP
                ii) MOSPF
                iii) CBT
                iv) PIM
                    * PIM Dense Mode
                    * PIM Spare Mode

        f) Routing Algorithm
            A) Flooding
            B) Shortest Path
                i) Dijkstra 
                ii) Bellman Ford
                iii) Floyd Warshall
                    
    2) Congestion Control Protocol
        a) Causing of Congestion
        b) Congestion Control
            A) Open Loop
                i) Restransmission Policy
                ii) Window Policy
                iii) Acknowledgement Policy
                iv) Discarding Policy
                v) Admission Policy
            B) Closed Loop
                i) Backpressure
                ii) Choke Packet
                iii) Implicit Signaling
                iv) Explicit Signaling
        c) Congestion Control Algorithm
            A) Leak Bucket Algorithm
            B) Token Bucket Algorithm
    3) Network Layer Protocol
        a) Address Resolution Protocol (ARP)----------(M)
        b) Internet Control Message Protocol (ICMP)---(M)
        c) Interner Protocol Version 4 (IPv4)
        d) Interner Protocol Version 6 (IPv6)
    4) Internetworking
        a) Tunneling
        b) Packet Framing


Chapter 05: Transport Layer Protocol
    1) TCP
        a) TCP Connection Establishment
        b) TCP Timestamps Option
    2) UDP
        a) Source Port Number
        b) Destination port Number
        c) Datagram size
        d) Checksum


Chapter 06: DNS
    1) Domain Name Space
    2) Types of Name Servers
        a) Root Server
        b) Primary Server
        c) Secondary Server
    3) Resource Records
        a) Domain Name
        b) Class
        c) Type
        d) Time to live
        e) Value
    4) SNMP:
        a) Managers and Agents
        b) SM1
        c) MIB
        d) SNMP defines five Message
            i) Get request
            ii) Get Next Request
            iii) Get Response
            iv) Set Request
            v) Trap
    5) Electronic mail
        a) Message header
        b) Header Files
    6) Pretty Good Privacy (PGP)
        a) compatibility
        b) Confidentiality
        c) Data Signature
    7) File Transfer Protocol
    8) Trivial File Transfer Protocol (TFTP)
    9) BootStrap Protocol (BOOTP)
    10) HTTP Protocol
        a) HTTP is Connectionless
        b) HTTP is media independent
        c) HTTP is stateless
        d) Basic architecture
            A) Header Files
                i) General-header
                ii) request-header
                iii) Response-header
                iv) entity header
    11) World Wide Web
    12) Firewall
        a) Vulnerable Services
        b) Routing based attacks
        c) Controlled access to our System
        d) Authentication
        e) Enhanced Privacy
        f) PING & SYN attack
        g) Firewall Mechanism
            A) Network Policy
            B) Authentication Mechanism
            C) Packet Filter
            D) Application Gateway
        h) Contain Problems with Firewall
            A) Complacency
            B) Encapsulated
            C) Throughput
        i) Authentication
            A) One Tme Password
            B) Password Again
            C) Smart Card
            D) Biometrics


Chapter 07 & 08
    1) Network Devices
        a) Network and Internetworking Devices
            A) Router
            B) Brouter
            C) Hub
            D) Switch
            E) Repeaters
            F) Bridges
            G) Gateway
            H) Routing Algorithm
        b) Modems
            A) Directional Capacity
                i) Half Duplex Modems
                ii) Full Duplex Modems
            B) Connection to the line
                i) 2-wire Modems
                ii) 4-wire Modems
            C) Transmission Modems
                i) Asynchronous Modems
                ii) Synchronous Modems


>> Ma'am ke padaye topics (Not 100% but lecture wise kuch to hai...):
    Internet
    packet switches
    host
    communication link
    connected devices
    protocals
    internet standards
    RFC: Request for comments
    IETF: Internet Engineering task force
    Packet switch: Router, Switches
    Circuit Switching
    Packet Switching
    Store and Forward transmission
    Transmission rate and propagation delay
    Processing Delay
    Queuing Delay
    Transmission Delay
    Propagation Delay
    Packet Loss
    End to End Delay
    Through put
    Monolithic architecture
    TCP/IP Layers
	Application layer Protocol: HTTP, SMTP, DNS
    Transport Layer
    TCP Protocol
    UDP Protocol
    SCTP Protocol
    Network Layer
    Data link layer
    Flow Control
    Physical Layer
    Simplex
	Half Duplex
    Full Duplex
    Data Link Layer
    Access Point
    Shared Medium
    Medium Access Control
    ALOHA
    CSMA|CD
    CSMA|CA
    Frame
    MAC Protocol
    Collision
    Switches
    Hubs
    IP Address
    Subnet
    Routing and Forwarding
    Routing table
    Static and Dynamic
	    1. RIP (Lan Envo)
	    2. OSPF (same)
        3. BGP (WAN Level)
    Gateway
    Default gateway
    Address Resolution Protocol
    RIP: Routing Information Protocol
    OSPF