Podcast
Questions and Answers
Which layer of the OSI model provides network services to the end user?
Which layer of the OSI model provides network services to the end user?
- Session
- Application (correct)
- Presentation
- Transport
Which layer of the OSI model is responsible for working with the data the client is using, such as HTTP for web browsers?
Which layer of the OSI model is responsible for working with the data the client is using, such as HTTP for web browsers?
- Data Link
- Network
- Application (correct)
- Physical
Which layer of the OSI model is primarily associated with signal transmission over Ethernet, Fiber Optic, Wi-Fi, or other wireless protocols?
Which layer of the OSI model is primarily associated with signal transmission over Ethernet, Fiber Optic, Wi-Fi, or other wireless protocols?
- Physical (correct)
- Session
- Transport
- Network
Which layer of the OSI model focuses on the format and encryption of data for presentation to the Application layer?
Which layer of the OSI model focuses on the format and encryption of data for presentation to the Application layer?
Which layer of the OSI model establishes, manages, and terminates connections between applications?
Which layer of the OSI model establishes, manages, and terminates connections between applications?
Which layer of the OSI model ensures error-free data transmission and may provide error correction?
Which layer of the OSI model ensures error-free data transmission and may provide error correction?
What is the main task of the Presentation layer?
What is the main task of the Presentation layer?
Which layer is responsible for the construction, direction, and conclusion of connections between devices?
Which layer is responsible for the construction, direction, and conclusion of connections between devices?
What does the Transport layer coordinate?
What does the Transport layer coordinate?
Which protocol may provide additional capabilities including error recovery, data flow, and retransmission?
Which protocol may provide additional capabilities including error recovery, data flow, and retransmission?
What does the Network layer handle?
What does the Network layer handle?
Which layer is responsible for setting up links across the physical network and managing the physical addressing methods?
Which layer is responsible for setting up links across the physical network and managing the physical addressing methods?
What encompasses the Physical layer?
What encompasses the Physical layer?
Which layer checks for transmission errors and packages the bits into data frames?
Which layer checks for transmission errors and packages the bits into data frames?
What is the IP portion of TCP/IP commonly known as?
What is the IP portion of TCP/IP commonly known as?
'Is the device plugged in?' is typically a troubleshooting question related to which layer?
'Is the device plugged in?' is typically a troubleshooting question related to which layer?
'How much data to send, how fast, where it goes' are responsibilities of which layer?
'How much data to send, how fast, where it goes' are responsibilities of which layer?
Which protocol manages the mapping between logical addresses and physical addresses?
Which protocol manages the mapping between logical addresses and physical addresses?
What is the primary purpose of the OSI model?
What is the primary purpose of the OSI model?
Which layer of the OSI model is primarily associated with signal transmission over Ethernet, Fiber Optic, Wi-Fi, or other wireless protocols?
Which layer of the OSI model is primarily associated with signal transmission over Ethernet, Fiber Optic, Wi-Fi, or other wireless protocols?
Which layer is responsible for checking for transmission errors and packaging the bits into data frames?
Which layer is responsible for checking for transmission errors and packaging the bits into data frames?
What does the Transport layer coordinate?
What does the Transport layer coordinate?
Which layer of the OSI model ensures error-free data transmission and may provide error correction?
Which layer of the OSI model ensures error-free data transmission and may provide error correction?
What does the Session layer of the OSI model focus on?
What does the Session layer of the OSI model focus on?
What is the main responsibility of the Physical layer in the OSI model?
What is the main responsibility of the Physical layer in the OSI model?
Which document defines the OSI model and its parts?
Which document defines the OSI model and its parts?
What do communication protocols enable in the OSI model?
What do communication protocols enable in the OSI model?
What is the primary role of the Transport layer in the OSI model?
What is the primary role of the Transport layer in the OSI model?
What is included in a protocol data unit (PDU) at each level in the OSI model?
What is included in a protocol data unit (PDU) at each level in the OSI model?
Which layer in the OSI model is responsible for defining characteristics such as voltage levels and signal timing?
Which layer in the OSI model is responsible for defining characteristics such as voltage levels and signal timing?
What do two entities at the communicating devices exchange in the OSI model by means of a layer N protocol?
What do two entities at the communicating devices exchange in the OSI model by means of a layer N protocol?
Which layer is responsible for the conversion of digital bits into electrical, radio, or optical signals?
Which layer is responsible for the conversion of digital bits into electrical, radio, or optical signals?
What organization initiated the development of the OSI model?
What organization initiated the development of the OSI model?
In which year was the OSI model first published as a standard?
In which year was the OSI model first published as a standard?
What technology gained widespread use, overshadowing the promotion of the OSI model in the late 1980s and early 1990s?
What technology gained widespread use, overshadowing the promotion of the OSI model in the late 1980s and early 1990s?
Which networking systems influenced the development of the OSI model?
Which networking systems influenced the development of the OSI model?
What is the primary purpose of the OSI model?
What is the primary purpose of the OSI model?
Which entity first defined the OSI model in a draft form in 1978?
Which entity first defined the OSI model in a draft form in 1978?
Study Notes
- The OSI reference model is a widely used framework for understanding and teaching networking concepts in the field of information technology.
- Development of the OSI model began in the late 1970s, in response to the need for standardization in the diverse computer networking methods.
- The model was initiated by the International Organization for Standardization (ISO) and was first defined in a draft form in 1978 by French software engineer Hubert Zimmermann.
- The OSI model is a seven-layer model, which is a framework for defining interoperability between different network devices and software.
- The model was published as a standard in 1984 by both the ISO and the International Telecommunication Union (ITU-T).
- The OSI model was an industry effort to provide multi-vendor interoperability and was a major advance in the standardization of network concepts.
- Despite the efforts to promote the OSI model, the Internet protocol suite (TCP/IP) gained widespread use in the late 1980s and early 1990s.
- The OSI model was influenced by various networking systems such as the NPL network, ARPANET, CYCLADES, and the International Networking Working Group (IFIP WG6.1).
- The OSI model was not a standard itself, but a framework for future standards and it promoted the idea of a consistent model of protocol layers.
- The OSI model is still used today and its standards documents are available from the ITU-T and ISO.
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Description
Test your knowledge of the OSI model and its seven layers with this quiz. Learn about how applications communicate over a network and how the model helps identify networking processes.
