1.2 | Q&A | OSI Layers

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What are some examples of protocols that work at the Application layer?

HTTP, HTTPS, Telnet, DNS

What layer in the TCP/IP Stack is equivalent to the Transport Layer of OSI model?

Host to Host

The DoD model (also called the TCP/IP stack) has four layers. Which layer is equivalent to Network layer of the OSI model?

Internet

Routers work at which OSI layer?

Network Layer

Which OSI layer is responsible for routing, IP addressing, and path determination?

Network Layer

Which layer provides logical addressing that routers will use for path determination?

Network Layer

Which layer translates between physical & logical addresses?

Network Layer

Which layer specifies voltage, wire speed, and pinout cables and moves bits between devices?

Physical Layer

If you are using Telnet or FTP, which is the highest layer you are using to transmit data?

Application Layer

Which OSI layer is responsible for providing a user interface in between the user and the network with the help of services like web browsers?

Application Layer

The Media Access Control Sublayer resides in which OSI layer?

Data Link Layer

Which OSI layer is responsible for framing, error detection, and physical addressing?

Data Link Layer

Which layer of the OSI model contains the LLC sublayer and the MAC sublayer?

Data Link Layer

Character encoding, data compression and encryption/decryption take place at which OSI layer?

Presentation Layer

Encryption and decryption are functions of which OSI layer?

Presentation Layer

What is the role of the LLC sublayer in the data link layer?

Provides Error Detection

Which layer is responsible for keeping the data from different applications separate on the network?

Session Layer

Which one is more reliable, TCP or UDP?

TCP

What is a difference between TCP and UDP?

TCP is connection-oriented protocol while UDP is connectionless protocol.

The OSI layer responsible for end-to-end delivery of the entire message is _____.

Transport Layer

Which OSI layer is responsible for breaking up data into segments?

Transport Layer


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