NETWORKING PART 03

Why is Networking Important?

• Enables communication and collaboration

• Facilitates data sharing and resource allocation

• Supports businesses, education, and government operations

• Essential for modern technologies like IoT and cloud computing

Where is Networking Used?

• Workplace

• Business

• Education

• IoT

What does OSI stand for in the OSI Model?

• Open Systems Interface

• Online Systems Interconnection

• Open Systems Integration

• Open Systems Interconnection

What does the OSI Model standardize?

• Network communication

• Data storage

• User authentication

• Data encryption

What is the role of the Physical Layer?

• Transmits raw data bits over physical medium

• Routes data between different networks

• Ensures end-to-end communication

• Formats and compresses data

What is the role of the Network Layer?

• Handles protocols like HTTP, FTP, SMTP, and DNS

• Converts data into a standard format (e.g., ASCII to Unicode)

• Routes data between different networks using IP addresses

• Manages flow control and error correction

It handles node-to-node data transfer and error detection

• DATA LINK LAYER

• TRANSPORT LAYER

• NETWORK LAYER

• SESSION LAYER

What does Packet Switching do?

• Breaks data into small packets before transmission

• Establishes a dedicated communication path

• Uses a single point of failure

• Transfers files between computers

What is the use case of Packet Switching?

• Internet, VOIP

• Telephone Networks

• Single Point of Failure

Which of the following is the correct order of the OSI Model layers?

• Physical Layer
  Data Link Layer
  Network Layer
  Transport Layer
  Session Layer
  Presentation Layer
  Application Layer

• Application Layer
  Presentation Layer
  Session Layer
  Transport Layer
  Network Layer
  Data Link Layer
  Physical Layer

• Network Layer
  Data Link Layer
  Transport Layer
  Application Layer
  Session Layer
  Physical Layer
  Presentation Layer

• Session Layer
  Transport Layer
  Data Link Layer
  Physical Layer
  Network Layer
  Presentation Layer
  Application Layer