Data Analytics Fundamentals: Key Concepts and Exam Preparation
This document covers the essential concepts from the Data Analytics Class Test (B.Tech 5th Sem, BCS-052) paper, presented in simple, exam-friendly language for easy understanding and recall.
Section A: Fundamental Definitions (5 Marks)
What is Structured Data?
- Data stored in a fixed format (e.g., tables, rows, columns).
- It is easy to search and analyze, typically using SQL.
- Examples: Customer names and phone numbers stored in a relational database.
What is Machine Data?
- Data generated automatically by
The Treaty of Waitangi: Motivations, Drafting, and Legal Interpretation
Māori Motivations for Signing the Treaty
- Protection from unruly settlers and lawlessness.
- Protection from unfair private land purchases.
- Stopping fighting between tribes.
- Guarantee of trading relations with Britain.
These motivations failed to deliver.
Crown Motivations for Signing the Treaty
- Colonial competition with the French.
- Financial motives (trade in whales, seals, timber, flax).
- The 1835 Declaration of Independence.
During the time of Cook’s rediscovery of NZ (1769–1830s), Britain was not interested
The Fundamentals of Effective Communication: Definitions and Components
1.2.1 What is Communication?
Communication is defined as ‘an art of passing/transmitting information, ideas, opinions, and attitudes from one person to the other.’ This serves as a general definition of the term. Different authors have defined communication in various ways. Some of the important definitions are:
- Peter Little: “Communication is the process by which information is transmitted between individuals and/or organizations so that an understanding response results.”
- William Newman and Charles
Vitamin D, Calcium, and Iron Metabolism: Deficiency and Toxicity
Vitamin D: Synthesis, Absorption, and Health
Synthesis of Vitamin D
Vitamin D3 (cholecalciferol) is synthesized in the skin when 7-dehydrocholesterol reacts with UVB radiation (sunlight).
The liver converts it to 25-hydroxyvitamin D [25(OH)D], the main circulating form.
The kidneys further convert it to the active form: 1,25-dihydroxyvitamin D [1,25(OH)₂D] (calcitriol).
Absorption of Vitamin D
Vitamin D2 and D3 from food or supplements are absorbed in the small intestine, especially with dietary fat.
Read MoreEssential English Verb Tenses and Modal Verbs Reference
English Verb Tenses: Structures and Time Markers
Present Simple
Used for habits, facts, and scheduled events.
Common Time Expressions (Adverbs of Frequency)
- ALWAYS, USUALLY, GENERALLY, REGULARLY, OCCASIONALLY, FREQUENTLY, OFTEN, SOMETIMES, RARELY, SELDOM, NEVER.
- AT 1 O’CLOCK, AT NIGHT, IN THE MORNING, ON FRIDAYS, EVERY WEEK, ONCE A MONTH, HOW OFTEN…?
Present Continuous
Structure: (AM/IS/ARE + V-ING)
Example: AM SINGING / AM NOT SINGING / AM I SINGING?
Time Markers
- NOW, RIGHT NOW, AT THE MOMENT, AT PRESENT,
Linux Command Line Reference for System Diagnostics and File Management
Linux Command Line Reference for System Diagnostics
This reference details essential Linux commands used for system investigation, including checking disk usage, locating files, analyzing file content, and retrieving general system information.
1. Estimating Disk and File Size
du -sh /SOURCE- Estimates the total size of the specified directory or file
/SOURCE. df -h /SOURCE- Provides information on the hard disk partition usage where the file or directory
/SOURCEresides. df -h- Lists all hard disk partitions
Porter’s Generic Strategies for Competitive Advantage
Porter’s Three Generic Competitive Strategies
According to Michael Porter, a firm can achieve a sustainable competitive advantage by implementing one of three generic strategies: cost leadership, differentiation, or focus. These strategies enable a company to effectively face the five competitive forces within an industry and achieve profitability.
A competitive advantage is any characteristic a firm possesses that differentiates it from its competitors, placing it in a superior relative position
Read MoreEssential Marketing Concepts and Strategic Frameworks
Defining Marketing
The aim of marketing is to know and understand the customer so well the product or service fits them and sells itself. Marketing is a contest for people’s attention; it is what you do, not what you say.
The Marketing Mix (4 P’s)
The traditional Marketing Mix consists of:
- Product
- Price
- Promotion
- Placement
Evolution: The strategic combination now emphasizes Client Service and Client Orientation.
Neuromarketing and Branding
Neuromarketing is based on brain functions:
- New Brain (Thinks)
- Mid Brain
Core Concepts in Biology: Reproduction, Homeostasis, and Gas Exchange
Human Reproductive System Anatomy
Male Reproductive System
The male reproductive system components and their functions:
- Testicles: Produce sperm and testosterone.
- Epididymis: The reservoir for sperm, communicating with the testicles.
- Scrotum: Holds the testicles outside the body to maintain a temperature lower than core body temperature, which is essential for sperm viability.
- Seminal Duct (Vas Deferens): Transports sperm from the epididymis to the urethra.
- Urethra: A duct where the seminal ducts converge
The Physics of Light: Reflection, Refraction, and Vision
Fundamentals of Light and Optics
Light is a form of electromagnetic radiation, composed of both electric and magnetic fields that oscillate perpendicularly to each other. It travels in straight lines and is a fundamental form of energy that can be reflected, refracted, and absorbed.
Core Properties of Light
- Light travels at an incredible speed: 299,792,458 meters per second (approximately 186,282 miles per second) in a vacuum.
- Light is a form of energy that can be reflected, refracted, and absorbed.