Destination and Source Address

Duration: 2 min

This video lesson is available to enrolled students.

Return to /learn/RPSC-PROGRAMMER/paper-1-data-communication-network/data-link-layer-ethernet/ethernet-frame-format-preamble-sfd/asset-destination-and-source-address after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. Paper 1 | Reasoning Test: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Syllogisms, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Seating Arrangements, Blood Relations, Puzzle Solving (Puzzles), Venn Diagram, Analogy, Ranking, Order and Sequence, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Selection Decision Table (Decision Making), Logical Sequence Of Words, Cubes & Dices, Analytical Reasoning (Counting Figures Reasoning), Calendar, Alphabet and Word Tests, Numerical Reasoning, Number System, Averages, Mixtures and Alligation, Percentages, Series Completion, Analogy and Classification, Patterns in Two-Dimensional Figures, Coding and Decoding, Mathematical Operations, Direction Sense, Algebra, Logical Deduction and Induction, Syllogisms and Venn Diagrams, Critical Reasoning, Order, Ranking and Sequence, Reading Comprehension, Profit, Loss and Discount, Constraint Puzzles, Speed, Time and Distance, Traverse Surveying, Ratio and Proportion, Time and Work, Mensuration, Permutations and Combinations, Clocks and Calendars, Data Interpretation, Assembling and Grouping of Shapes, Transformation of Shapes, Three-Dimensional Patterns and Visualization, Cubes and Dice, Vocabulary, Blood Relations, Data Sufficiency
  2. Paper 1 | Numerical Analysis: Number System, HCF LCM, Percentage, Ratio and Proportion (Ratios), Average, Sequence and Series (Series), Powers and Exponents (Surds and Indices), Algebra, Statistics, Data Interpretation, Mental Ability, Arithmetic, Logarithm, Profit and Loss, Simple Interest and Compound Interest, Speed Time and Distance, Mixture and Alligation, Mensuration and Geometry, Permutation and Combination, Probability, Sequences and Series, Powers, Surds and Logarithms, Subject-Verb Agreement, Sentence Completion, Geometry, Sentence Structure and Correction, Data Sufficiency, Trigonometry, Measurement and Quantity Take-Off, Signal Space and Optimum Detection, Probability, Statistics, Algebra, Time and Work, Speed, Time and Distance, Data Interpretation, Graph Theory, Combinatorics
  3. Paper 1 | General Knowledge: State Wise GK, History, Geography, GK- Current Affairs, Static General Knowledge, Polity, Indian Economy
  4. Paper 1 | DBMS: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, File Organization & Indexing, Relational Algebra, SQL, Transaction Management, Concurrency Control, Relational Calculus, Database Security & Authorization, Database Recovery
  5. Paper 1 | Data Communication & Network: Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, DLL: Framing, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Network Security, Security in Mobile and Wireless Computing, Input Output Organisation, File Management, Hardware Basics, Terms & Abbreviations, Protocols & Services, Network Access Technologies, Cyber Safety and Security, Basics of COA
  6. Paper 2 | System Analysis & Design: Fundamentals of Systems and Information Systems, SDLC and Development Approaches, Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Documentation and Software Requirements Specification (SRS), SDD and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management, Security, Risk Management & Maintenance, extras
  7. Paper 2 | Programming Language (Java): Java Fundamentals, OOPS with Java, Array, String, IO & References, Generic & Collections, Multithreading, Java, Miscellaneous, Control Flow, OOPS with C++, Stack, C Fundamentals, Arrays & Pointers, Object Oriented Technology, Control Flow & Looping, Introduction to Python
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This lecture segment introduces the Ethernet frame structure, focusing on addressing fields. The instructor explains that the Destination Address is a 6-byte field containing the MAC address of the intended recipient. The presentation distinguishes three MAC address types: Unicast, Multicast, and Broadcast, defined by the Least Significant Bit (LSB) of the first byte. A diagram illustrates the full frame layout, including Preamble, Start Frame Delimiter (SFD), Destination Address, Source Address, Length, Data with padding, and Cyclic Redundancy Check (CRC). The instructor emphasizes that the Source Address is also a 6-byte field holding the sender's MAC address. Handwritten notes clarify that 6 bytes equal 48 bits.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The instructor presents a slide titled "Destination Address" showing it is a 6-byte field containing the MAC address. The text on screen lists Unicast (LSB of first byte is 0), Multicast (LSB of first byte is 1), and Broadcast (all bits assigned 1's). A diagram labels frame components: Preamble, SFD, Destination address (6 bytes), Source address, Length, Data and padding, and CRC. Handwritten text "6B = 48b" appears to clarify byte-to-bit conversion.

  2. 2:00 – 2:04 02:00-02:04

    The video concludes with the instructor shifting focus to the "Source Address" slide, described as a 6-byte field holding the sender's MAC address. The diagram remains visible showing the frame layout with Destination and Source addresses clearly marked as 6-byte fields.

The lecture establishes the foundational structure of Ethernet frames, specifically addressing mechanisms. Key concepts include the 6-byte (48-bit) size for both Destination and Source MAC addresses. The classification of addresses relies on the Least Significant Bit (LSB) of the first byte: 0 for Unicast, 1 for Multicast, and all 1s for Broadcast. The visual diagram reinforces the sequential order of frame fields from Preamble through CRC, providing a structural reference for network packet analysis.

Loading lesson…