Practice Question - KLOC

Duration: 5 min

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Inside: a video lesson and guided study material.

Module outline

  1. English Comprehension/Verbal Ability: Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Vocabulary, Sentence Correction (Error Correction), Sentence Completion (Fill in the blanks), Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Subject Verb Agreement (Verb Noun Agreement), Tenses, Verb, Articles, Preposition, Conjunction, Pronoun, Noun, Adjectives, Adverb, Modals, Cloze Test (Cloze Passage), Active Passive Voice (Voice), Direct and Indirect Speech, Sentence Construction
  2. Logical Ability: Coding Decoding, Directions (Direction Test), Analogy, Inequality, Data Sufficiency, Series (Number and Letter Series) (Numerical Relations and Reasoning), Syllogisms, Seating Arrangements, Puzzle Solving (Puzzles), Blood Relations, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Ranking, Order and Sequence, Logical Sequence Of Words, Data Arrangement, Venn Diagram, Calendar, Clock
  3. Quantitative Ability: Logarithm, Permutation and Combination, Probability, Profit and Loss, Speed Time and Distance, Mixture and Alligation, Partnership, Simple Interest and Compound Interest, Percentage, Ratio and Proportion (Ratios), Average, Time and Work, Pipe and Cistern, Number System, Divisibility Rules, HCF LCM, Algebra, Powers and Exponents (Surds and Indices), Mensuration and Geometry, Age Problems, Data Interpretation, Sequence and Series (Series)
  4. Basic Analytical Ability: Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Analytical Reasoning (Counting Figures Reasoning), Cubes & Dices, Selection Decision Table (Decision Making)
  5. Computer Programming: Pseudo Codes, Coding Questions by Yash Sir, C Programming by Yash Sir, Programming in C++, Java, Python for Placements by Yash Sir
  6. DBMS (Computer Science): Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Transaction Management, Concurrency Control, Database Security & Authorization
  7. SQL (Computer Science): SQL
  8. OS (Computer Science): Introduction to OS, Process Management, CPU Scheduling, Deadlock, Process Synchronization, Threads & Process Creation, Memory Management, Virtual Memory, File Management
  9. Computer Networks (Computer Science): 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, Hardware basics, Network Security
  10. Data Structures (Computer Science): Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing
  11. OOPs (Computer Science): Object Oriented Programming (OOPS)
  12. Software Engineering (Computer Science): Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  13. SVAR Conversational - Spoken English: Communication Assessment
  14. HR Interview: MR & HR Interview Preparation
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

The video presents a lecture on software project cost estimation, focusing on the calculation of total expenditure for a banking application. The instructor, Sanchit Jain, introduces a problem where a banking application is broken down into four modules: User Interface (5400 LOC), Database (8500 LOC), Server (7300 LOC), and Client (5500 LOC). The total size is calculated as 26,700 Lines of Code (LOC). The problem provides a developer's productivity of 870 LOC per month and a monthly salary of $1500. The core of the lesson is the application of a formula to calculate the total expenditure: (Total LOC / Productivity) * Salary. The instructor demonstrates this calculation step-by-step, first finding the number of months required (26,700 / 870 = 30.69), and then multiplying it by the salary to arrive at a total expenditure of $46,035. The video uses a whiteboard for calculations and a calculator for verification, concluding with a summary of the final answer.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video opens with a title card for 'SOFTWARE ENGINEERING' and '#knowledgegate'. It then transitions to a lecture slide presenting a problem. The on-screen text states: 'Q Consider a banking application which required 4 modules as follows: User Interface = 5400 LOC, Database = 8500 LOC, Server = 7300 LOC, Client = 5500 LOC. Find the total expenditure of company if productivity of the person is 870 Loc per month. Consider the salary of each developer is 1500 US dollar per month.' The instructor, Sanchit Jain, is visible in a small window, introducing the problem and the concept of calculating project cost based on Lines of Code (LOC).

  2. 2:00 – 5:00 02:00-05:00

    The instructor begins the calculation. He first adds the LOC for all modules: 5400 + 8500 + 7300 + 5500, which he writes as 26,700 LOC on the whiteboard. He then explains the formula for total expenditure: (Total LOC / Productivity) * Salary. He calculates the number of months required: 26,700 / 870, which he shows as 30.69. He then multiplies this by the salary: 30.69 * 1500, arriving at a total expenditure of $46,035. He uses a calculator to verify the multiplication. The final answer is written as E = 30.69 * 1500 = $46,035. The video ends with a 'THANKS FOR WATCHING' screen.

The video provides a clear, step-by-step demonstration of a fundamental software engineering cost estimation technique. It begins by defining the problem with a specific example of a banking application, breaking it down into its constituent modules and their respective Lines of Code (LOC). The core concept taught is the use of a simple formula to calculate the total cost of a project: (Total LOC / Developer Productivity) * Developer Salary. The instructor methodically applies this formula, first summing the LOC, then calculating the time in months, and finally multiplying by the salary to find the total expenditure. The use of a whiteboard for the initial calculation and a calculator for verification reinforces the practical application of the method, making it a comprehensive tutorial on this specific estimation approach.

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