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List of Camparision and difference between Computer Network

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  1. TCP vs. UDP:

    TCP UDP
    1. Connection-oriented 1. Connectionless
    2. Reliable data delivery with acknowledgments 2. Unreliable data delivery
    3. Error checking with checksums 3. Limited error checking (checksums)
    4. In-order delivery of data 4. Unordered delivery of data
    5. Three-way handshake for connection setup 5. No handshake
    6. Byte-oriented (streaming) 6. Message-oriented (datagrams)
    7. Larger header size 7. Smaller header size
    8. Suitable for file transfer, web browsing 8. Commonly used in video streaming, online gaming
    9. Slower than UDP 9. Faster than TCP
    10. Examples: HTTP, FTP, SMTP 10. Examples: DNS, DHCP, VoIP
  2. IPv4 vs. IPv6:

    IPv4 IPv6
    1. 32-bit address length 1. 128-bit address length
    2. Dotted decimal notation 2. Hexadecimal notation
    3. Manual or DHCP address configuration 3. Stateless or stateful configuration
    4. Supports unicast, multicast, broadcast 4. Supports unicast, multicast, anycast
    5. Minimum header size of 20 bytes 5. Fixed header size of 40 bytes
    6. Network Address Translation (NAT) common 6. Less reliance on NAT
    7. Broadcast support 7. No broadcast support
    8. Examples: 192.168.1.1 8. Examples: 2001:0db8:85a3::8a2e:0370:7334
    9. Limited address space 9. Expanded address space
    10. IPv4 depletion issues 10. Designed to address IPv4 limitations
  3. Circuit Switched Network vs. Packet Switched Network:

    Circuit Switched Network Packet Switched Network
    1. Dedicated path for entire call 1. No dedicated path, data divided into packets
    2. Fixed bandwidth reserved for the call 2. Shared bandwidth, efficient resource use
    3. Less flexible for bursty data 3. More flexible for bursty data
    4. Suitable for continuous communication 4. Efficient for sporadic communication
    5. Examples: Traditional telephone networks 5. Examples: Internet, VoIP
    6. Resource wastage during idle periods 6. Reduced resource wastage
    7. Call setup time is longer 7. Call setup time is shorter
    8. Inefficient for variable traffic 8. Efficient for variable traffic
    9. Higher cost due to dedicated path 9. Cost-effective with shared resources
    10. Less scalable 10. More scalable
  4. Pure Aloha vs. Slotted Aloha:

    Pure Aloha Slotted Aloha
    1. Continuous time division 1. Time divided into discrete slots
    2. Transmission anytime 2. Transmission at the start of slots
    3. Lower efficiency due to collisions 3. Higher efficiency, reduced collisions
    4. Lower throughput 4. Higher throughput
    5. Simple implementation 5. Requires synchronization
    6. Vulnerable to collisions 6. Collisions reduced by slot timing
    7. Limited scalability 7. Improved scalability
    8. Example: Pure Aloha in early Ethernet 8. Example: Slotted Aloha in RFID
    9. No predefined time slots 9. Defined time slots
    10. Higher collision probability 10. Lower collision probability
  5. OSI vs. TCP/IP:

    OSI Model TCP/IP Model
    1. Seven-layer model 1. Four-layer model
    2. Presentation and Session layers 2. Combines Presentation and Session into Application
    3. More theoretical, less practical 3. More practical, widely used
    4. Clear separation of functions 4. Functions often combined
    5. Developed by ISO 5. Developed by the U.S. Department of Defense
    6. Comprehensive but complex 6. Simpler and easier to implement
    7. Not as widely adopted as TCP/IP 7. Widely adopted in practice
    8. Examples: ISO 7498-1, X.200 8. Examples: TCP, IP, UDP
    9. Emphasizes service boundaries 9. Emphasizes end-to-end communication
    10. Often used for educational purposes 10. Industry-standard for networking
  6. NOX vs. POX:

    Both NOX and POX are controllers for software-defined networking (SDN).

    NOX POX
    1. Written in C++ 1. Written in Python
    2. Supports OpenFlow protocol 2. Supports OpenFlow protocol
    3. Limited development community 3. Active development community
    4. Limited documentation 4. Comprehensive documentation
    5. Basic functionality 5. Rich feature set
    6. Less flexible due to C++ 6. More flexible due to Python
    7. Examples: NOX classic, Beacon 7. Examples: POX, Pyretic
    8. Suitable for simpler SDN networks 8. Suitable for complex SDN applications
    9. Less popular in recent years 9. Gaining popularity in the SDN community
    10. Less emphasis on ease of use 10. Emphasizes simplicity and ease of use
  7.  Difference between top-down network design and bottom- up network design in table and 10-10 points

     

     

    Feature Top-Down Network Design Bottom-Up Network Design
    1. Approach Starts with a broad overview and refines details Starts with specific details and builds upwards
    2. Scope Considers the entire network as a whole Focuses on individual components or small subsystems
    3. Planning Comprehensive planning before implementation Incremental planning and implementation
    4. Requirements Emphasizes user and business requirements Technical requirements are primary focus
    5. Flexibility Adaptable to changes in technology or business needs May face challenges adapting to major changes
    6. Time Potentially longer planning phase, but efficient execution Faster initial implementation, but may lack coherence
    7. Risk Management Early identification of potential risks and mitigation strategies Risks addressed as they arise, less proactive
    8. Scalability Generally more scalable due to holistic approach Scalability may vary depending on initial design
    9. Complexity Initial complexity managed through modularization Complexity may increase as components are added
    10. Examples Cisco's PPDIOO (Prepare, Plan, Design, Implement, Operate, Optimize) model Building a network by gradually adding devices and services

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