Packets and Frames Transcript Flashcards
What is the first thing a router does when it receives a frame?
The router looks at the MAC address to determine if the frame was intended for itself.
What does the router do after realizing a frame was intended for itself?
The router removes the frame’s header, which was only necessary to get the data to that router.
How does a router determine where to send a packet based on its IP address?
The router examines the packet’s destination IP address to decide where to send it next.
Explain how a router routes a packet to its final destination.
The router creates a new frame with new MAC addresses for each hop until it reaches the destination.
What happens when Router 2 receives the data?
Router 2 checks the destination MAC address, removes the MAC header, and looks at the destination IP field.
Describe the process of encapsulation as a packet moves through the network.
The packet is encapsulated within new frames at each hop, preserving packet information from end to end.
What are the two main types of information discussed in the video?
Packets and frames.
Why is understanding packets and frames important?
To comprehend routing and switching processes.
Which model discusses the creation of packets and frames?
Transmission Control Protocol/Internet Protocol model (TCP/IP model).
What is a piece of data called in the Internet layer of the TCP/IP model?
Packet.
What happens at the Data Link layer after packets are generated?
MAC addresses are added.
Are IP addresses logical or physical? Explain.
Logical; they are software-configured, not burnt into systems.
What transforms data into a frame at the Data Link layer?
Adding MAC addresses.
What is the first step Workstation A takes to communicate with Workstation B?
Creating a packet containing the data.
What protocol does Workstation A use to discover the MAC address of the router’s interface?
Address Resolution Protocol (ARP).
