Practise Questions (Python Module) (Q11-20)

Duration: 4 min

This video lesson is available to enrolled students.

Return to /learn/HPSC-PGT-COMPUTER-SCIENCE/python-language/functions-modules/standard-libraries/asset-practise-questions-python-module-q11-20 after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. HPSC Interview Preparation: Interview Preparation
  2. Python Language: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis, DSA using Python
  3. Data Structure & Algorithms: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Algorithm Analysis, Sorting Algorithms, Minimum Spanning Trees, Time Complexity Analysis, Graph Theory, Shortest Path Algos
  4. Computer Networks: Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Security
  5. Computer System & Organisation: Basics of COA, Cache Memory Organization, Input Output Organisation, Pipelining, Instr Formats & Modes, Control Unit Design, Programming the Basic Computer
  6. Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, SQL, File Organization & Indexing, Transaction Management, Concurrency Control
  7. Operating Systems: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Deadlock, Threads & Process Creation, Memory Management, Virtual Memory, Disc Scheduling
  8. Digital Logic & Circuits: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation
  9. Theory Of Computation: Introduction to TOC, Deterministic FA (DFA), Non-Deterministic FA, Regular Expressions, Grammar, Regular Language Properties, Pushdown Automata & CFG, Turing Machines, Moore & Mealy Machines
  10. Compiler Design: Intro to Compilers, Lexical Analysis, Grammar & CFG, Syntax Analysis: Top-Down, Syntax Analysis: Bottom-Up, Semantic Analysis & SDT, Intermediate Code Gen, Code Optimization, Run Time Environment
  11. Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management, Data Warehousing & Mining
  12. Introduction to Emerging Trends: Emerging Tech Trends
  13. Digital Society & Cyber Law: Society, Law & Ethics
  14. HPSC PGT Previous Year Paper:
  15. HPSC Assistant Professor Previous Year Paper:
  16. Live Sessions: HPSC Live Sessions, EMRS TGT/PGT Live Class
  17. Full Mock Test:
  18. HPSC PGT - MOCK Test Series:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This video is a lecture on Python modules, focusing on the math, random, and statistics modules. The instructor presents a series of multiple-choice questions to test understanding. The first section covers the math module, explaining that math.cos(0) returns 1 and math.tan(0) returns 0. The second section focuses on the random module, identifying it as the correct module for generating random numbers, and explaining that random.random() returns a float between 0 and 1, while random.randint(1,5) returns an integer between 1 and 4. The final section covers the statistics module, identifying it as the correct module for statistical calculations, and explaining that statistics.mean([2,4,6]) returns 4 and statistics.median([1,3,5,7]) returns 4. The instructor uses a digital whiteboard to write and draw, and the video includes a brief interruption with a 'No Signal' error message.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The video begins with a presentation of multiple-choice questions about Python modules. Question 11 asks for the value of math.cos(0), with options 0, 1, -1, and Error. The instructor explains that the cosine of 0 is 1, so the correct answer is B. Question 12 asks what math.tan(0) returns, with options 1, 0, undefined, and Error. The instructor explains that the tangent of 0 is 0, so the correct answer is B. Question 13 asks which module is used to generate random numbers, with options math, statistics, random, and number. The instructor identifies the random module as the correct answer, C. Question 14 asks what random.random() returns, with options Integer between 0 and 1, Float between 0 and 1, Integer only, and Boolean value. The instructor explains that random.random() returns a float between 0 and 1, so the correct answer is B. Question 15 asks what random.randint(1,5) can return, with options 1 to 4, 1 to 5, 0 to 5, and 0 to 4. The instructor explains that randint returns an integer from the start (inclusive) to the stop (exclusive), so it can return 1 to 4, making A the correct answer.

  2. 2:00 – 4:13 02:00-04:13

    The lecture continues with question 16, which asks which function generates numbers excluding the stop value. The options are randint(), random(), randrange(), and choice(). The instructor explains that randrange() is the correct function, as it excludes the stop value, making C the correct answer. Question 17 asks what random.randrange(2,10,2) can return, with options 2,4,6,8; 2 to 10; 2,6,10; and Only 2. The instructor explains that the function generates numbers from 2 to 10 with a step of 2, so the possible values are 2, 4, 6, and 8, making A the correct answer. Question 18 asks which module is used for statistical calculations, with options math, random, statistics, and data. The instructor identifies the statistics module as the correct answer, C. Question 19 asks what statistics.mean([2,4,6]) returns, with options 4, 6, 2, and Error. The instructor calculates the mean as (2+4+6)/3 = 12/3 = 4, so the correct answer is A. Question 20 asks what statistics.median([1,3,5,7]) returns, with options 3, 5, 4, and Error. The instructor explains that the median of an even number of values is the average of the two middle values, so (3+5)/2 = 8/2 = 4, making C the correct answer. The video ends with a brief interruption showing a 'No Signal' error message.

The video provides a comprehensive review of three essential Python modules: math, random, and statistics. It progresses from basic trigonometric functions to random number generation and finally to statistical analysis. The instructor uses a clear, step-by-step approach, presenting questions and then explaining the correct answers with reasoning and calculations. The use of a digital whiteboard for writing and drawing helps to visually reinforce the concepts, making it an effective study resource for understanding these core Python functionalities.

Loading lesson…