Podcast
Questions and Answers
Which layer is responsible for end-to-end delivery of data?
Which layer is responsible for end-to-end delivery of data?
- Transport Layer (correct)
- Application Layer
- Presentation Layer
- Session Layer
Which layer is responsible for providing logical addressing with protocols like IPv4 and IPv6?
Which layer is responsible for providing logical addressing with protocols like IPv4 and IPv6?
- Presentation Layer
- Session Layer
- Network Layer (correct)
- Data Link Layer
Which layer is responsible for choosing the best path to a destination using routing protocols like OSPF and EIGRP?
Which layer is responsible for choosing the best path to a destination using routing protocols like OSPF and EIGRP?
- Application Layer
- Session Layer
- Transport Layer
- Network Layer (correct)
Which layer is responsible for ensuring that data is presented in a readable format to the application layer?
Which layer is responsible for ensuring that data is presented in a readable format to the application layer?
Which layer is responsible for managing the establishment, maintenance, and termination of sessions between applications?
Which layer is responsible for managing the establishment, maintenance, and termination of sessions between applications?
Which layer is responsible for presenting the data in the proper format?
Which layer is responsible for presenting the data in the proper format?
Which layer is responsible for managing the establishment, maintenance, and termination of sessions between applications?
Which layer is responsible for managing the establishment, maintenance, and termination of sessions between applications?
Which layer provides services directly to the user's applications but does not include end-to-end data delivery?
Which layer provides services directly to the user's applications but does not include end-to-end data delivery?
Which layer ensures that data is delivered error-free, in sequence, and with no loss or duplication?
Which layer ensures that data is delivered error-free, in sequence, and with no loss or duplication?
Which layer provides logical addressing and routing to direct data through the network?
Which layer provides logical addressing and routing to direct data through the network?
Which layer is responsible for converting data from machine format to a human-readable format?
Which layer is responsible for converting data from machine format to a human-readable format?
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Study Notes
OSI Model Layers
- The OSI (Open Systems Interconnection) model consists of 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
The Physical Layer (Layer 1)
- Responsible for all physical properties of the network.
The Data Link Layer (Layer 2)
- Responsible for:
- Framing
- Error detection and correction
- Flow control
- Media access control
The Network Layer (Layer 3)
- Responsible for:
- Logical addressing (e.g., IPv4, IPv6, IPX, Appletalk)
- Routing (choosing the best path to the destination) (e.g., RIP, OSPF, IS-IS, EIGRP)
The Transport Layer (Layer 4)
- Responsible for:
- End-to-end delivery
- Logical addressing
- Routing (choosing the best path to the destination)
The Presentation Layer (Layer 6)
- Responsible for presenting data in the proper format.
The Application Layer (Layer 7)
- Examples of applications that use this layer include:
- Email (SMTP, POP3)
- Web browsers (HTTP)
- FTP
- Telnet
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