Course module
Data Structure (IT Specialist) — NIACL AO 2026 IT SPECIALIST
- Lessons
- 184
- Duration
- 10 hr 59 min
- PYQs
- 279
- Practice
- 1237
4% of this course's PYQ weight is covered in this module.
Syllabus index
Lessons in this module
Introduction to DS
DS Basics & Types
- DS Basics & TypesPdf
- Why we study data structure and algorithmDrm Video
- What is data structureDrm Video
- Effects of Data StructureDrm Video
- Primitive Vs Non-Primitive Data StructureDrm Video
- Linear Vs Non-Linear Data StructureDrm Video
- Demo: Why we study data structure and algorithmStandard Video
- Demo: What is data structureStandard Video
Array
Array Basics & Ops
1D & 2D Addressing
3D & Multi-dim Arrays
Stack
Stack Basics & Ops
Infix Postfix Prefix
Eval of Expressions
Recursion & Stack
- Recursion & StackPdf
- Introduction to RecursionDrm Video
- Recursion Practice QuestionDrm Video
- FunctionsDrm Video
- Recursive FunctionsDrm Video
- recursive functionsDrm Video
- Stack Practice questionsDrm Video
- Stack Practice questionsDrm Video
- Stack recursion Practice questionsDrm Video
- Stack recursion Practice questionDrm Video
- Stack recursion Practice questionsDrm Video
- Recursion Practice questionsDrm Video
- Stack Practice questionsDrm Video
- Stack Practice questionsDrm Video
Queue
Basics & Stack Mix
Circular Queue
Priority Queues & Variants
Linked List
SLL Basics & Standard Operations
- SLL Basics & Standard OperationsPdf
- Introduction To Link ListDrm Video
- Analysis Of Link ListDrm Video
- Link List Traversal Using LoopDrm Video
- Link List Traversal Using RecusrionDrm Video
- Searching An Element In Link List Using LoopDrm Video
- Searching An Element In LL Using RecursionDrm Video
- Insertion in Link ListDrm Video
- Deletion From Link ListDrm Video
Structure Modification & Pointer Logic
Tree
Binary Tree Basics & Props
Traversals & Construction
- Traversal & ConstructionPdf
- Preorder Treversal of Binary TreeDrm Video
- Inorder Traversal Of Binary TreeDrm Video
- Post Order Traversal Of Binary TreeDrm Video
- Tree traversal Practice QuestionDrm Video
- Tree traversal Practice QuestionDrm Video
- Tree traversal Practice QuestionDrm Video
- Tree Practice QuestionDrm Video
- Tree Traversal Pseudocode (Pre-order)Drm Video
- Tree traversal Pseudocode (Inorder)Drm Video
- Tree Traversal Pseudocode (Post-Order )Drm Video
- Tree Traversal Pseudocode PQDrm Video
- Tree Traversal Pseudocode PQDrm Video
BST Basics & Operations
AVL Trees & Balancing
Complete Binary Trees
Heaps & Priority Queues
Advanced & k-ary Trees
- Advanced & k-ary Trees - NotesPdf
- Threaded Binary TreeDrm Video
- K-ary TreeDrm Video
- K-ary Tree Practice Question 1Drm Video
- K-ary Tree Practice Question 2Drm Video
- K-ary Tree Practice Question 3Drm Video
- K-ary Tree Practice Question 4Drm Video
- K-ary Tree Practice Question 6Drm Video
- K-ary Tree Practice Question 7Drm Video
- K-ary Tree Practice Question 8Drm Video
Graphs
Graph Reps & Basics
DFS & Applications
BFS & Applications
Hashing
Hashing Basics & Functions
Open Addressing (Probing)
Chaining & Perf Analysis
Previous-year questions
PYQ collectionPYQ Questions3 questionsPYQ collectionPYQ Questions4 questionsPYQ collectionPYQ Questions7 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions15 questionsPYQ collectionPYQ Questions20 questionsPYQ collectionPYQ Questions15 questionsPYQ collectionPYQ Questions6 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions51 questionsPYQ collectionPYQ Questions17 questionsPYQ collectionPYQ Questions8 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions26 questionsPYQ collectionPYQ Questions16 questionsPYQ collectionPYQ Questions2 questionsPYQ collectionPYQ Questions13 questionsPYQ collectionPYQ Questions31 questionsPYQ collectionPYQ Questions20 questionsPYQ collectionPYQ Questions23 questionsPYQ collectionPYQ Questions27 questionsPYQ collectionPYQ Questions6 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions13 questionsPYQ collectionPYQ Questions6 questionsPYQ collectionPYQ Questions100 questionsPYQ collectionPYQ Questions4 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions15 questionsPYQ collectionPYQ Questions1 questionsPYQ collectionPYQ Questions25 questionsPYQ collectionPYQ Questions9 questionsPYQ collectionPYQ Questions10 questionsPYQ collectionPYQ Questions5 questionsPYQ collectionPYQ Questions24 questionsPYQ collectionPYQ Questions279 questions
Explore the course
- Quantitative Aptitude
- Reasoning Ability
- English Language
- General Awareness
- C Concepts + MCQs (IT Specialist)
- Java (IT Specialist)
- Python (IT Specialist)
- OOPs (IT Specialist)
- DBMS (IT Specialist)
- SQL (IT Specialist)
- Software Engineering (IT Specialist)
- Operating System (IT Specialist)
- Compiler Design (IT Specialist)
- Computer Architecture (IT Specialist)
- Data Communication & Networking (IT Specialist)
- Descriptive Test (Main Exam)
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