DSSSB Computer Science Complete Preparation

Orientation

Network Topologies & Classification

Types of Data Communication | OSI vs. TCP/IP Model

Data Link Layer: Framing | Flow Control | MAC Protocols

Network Layer: Routing Algorithms | IPv4/IPv6 | Subnetting

Transport Layer: TCP | UDP | Multiplexing

Application Layer: HTTP | FTP | SMTP | SNMP

Network Security: Malwares | Cryptography and Steganography | VPN | Firewalls

DBMS vs. File System

DBMS Architecture: 3-Level Schema

Relational Model: Keys (Primary | Foreign | Candidate)

Entity-Relationship Model | Normalization: 1NF | 2NF | 3NF | BCNF

SQL: Queries | Joins | Transactions

Concurrency Control: Locking Protocols | Timestamp Ordering

Data Warehousing and Data Mining.

OS Functions & Types (Batch | Multi-tasking | Real-time)

Process Management: Process States | Scheduling | Context Switching | IPC.

Deadlocks: Detection | Prevention | Recovery

Memory Management: Swapping | Paging | Segmentation | Virtual Memory

File System Management: Directories | File Allocation Methods

I/O Systems: DMA | Interrupts

Security & Protection: Access Control | Encryption

Multithreading

Storage Management: Disk Scheduling | RAID Structure.

Number Representation: Decimal | Binary | Octal | Hexadecimal

Microcomputer Architecture: CPU | Buses (Address | Data | Control)

Memory: SRAM | DRAM | PROM | EPROM | EEPROM

Microprocessor & Microcontroller (Applications)

Digital Electronics: Logic Gates | DeMorgan’s Theorems | K-Map (2-4 variables)

Arithmetic Logic Unit (ALU): Half Adder | Full Adder | 2’s Complement Adder/Subtractor

Pipelining and Vector processing.

Central Processing Unit: General Register Organization | Stack Organization | Instruction Format | Addressing Modes.

RISC Computer | CISC Computer.

Hardwired and Microprogrammed Control Unit.

Data Types | Variables | Constants | Abstract Data Types (ADT)

Linear Data Structures: Arrays (1D | 2D) | Stacks | Queues (Circular | Priority | Deque)

Linked Lists: Singly | Doubly | Circular

Recursion: Tower of Hanoi | Fibonacci | Backtracking

Sorting Algorithms: Insertion | Selection | Bubble | Merge | Quick | Heap | Counting | Bucket

Searching Techniques: Sequential | Binary | Index Sequential | Hashing & Collision Resolution

Trees: Binary Tree | BST | AVL Tree | Huffman Coding | B-Trees

Graphs: Representation (Adjacency List & Matrix) | BFS | DFS | Connected Components

OOP Principles: Encapsulation | Abstraction | Inheritance | Polymorphism

Constructors & Destructors | Overloading & Overriding | Exception Handling

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