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IT Fundamentals

Block 1 Unit 4 - Mar 2023

QuestionAnswer
What is the International Organization for Standardization (ISO) most famous standard? Open Systems Interconnection (OSI) (56)
Layers 1-4 of the OSI model are considered the ___________ layers, and mostly concern themselves with __________________________. 1. Lower (58) 2. Moving Data Around (58)
What are the seven layers of the OSI reference model? 1. Physical Layer, 2. Data Link, 3. Network, 4. Transport, 5. Session, 6. Presentation, 7. Application (60)
The _________________ layer of the OSI reference model relates to the services that directly support user applications. Physical Layer 7 (62)
Encryption, decryption, and data compression is also typically done at this layer of the OSI reference model. ___________________________________________________________ Presentation Layer 6 (71)
The OSI reference model layer that exchanges, and dialogues between the applications on each host is the ________________ layer. Session Layer 5 (74)
Which layer of the OSI reference model is responsible for end-to-end recovery, flow control and ensures complete date transfer? _______________________________________________ Transport Layer 4 (76)
What layer of the OSI reference model is responsible for addressing packets and translating logical addresses and names into physical addresses? _________________________________ Network Layer 3 (79)
Which layer provides the functional and procedural means to transfer data between network entities and may provide the means to correct errors? _________________________________ Data Link Layer (DLL) Layer 2 (82)
The ______________________________ sub layer controls how a computer on the network gains access to the data and permission to transmit it. Data Link Layer (DLL) Layer 2 (84)
The data link layer is divided into the ______________________________ and________________________________ layers. 1. Media Access Control (MAC (84) 2. Logical Link Control (LLC) Layer (84)
The _______________________ of the OSI reference model is responsible for the node to node delivery of the message. Data Link Layer 2 (82)
The ________________________ layer of the OSI reference model represents the electrical and physical representation of the system. Physical Layer 1 (88)
Created by: merrellm
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