Quiz 1 Study Guide - Hsanokklis/2022-2023-Tech-journal GitHub Wiki

Please create a mind map sub the below material.

How to create a Mind Map

This is a study guide and reminder to review the following for the quiz!

  • 7 Layers of OSI Model

image

  • Common Network Topologies (Bus, star, ring...)
  • Format of MAC addresses
  • Role of MAC addresses
  • Hubs and Switches
  • What ARP is for

The Address Resolution Protocol is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address. This mapping is a critical function in the Internet protocol suite

  • How ARP works (basic)
  • The role of the Default Router/Default Gateway

The default gateway is the path used to pass information when the device doesn't know where the destination is. More directly, a default gateway is a router that connects your host to remote network segments. It's the exit point for all the packets in your network that have destinations outside your network.

  • ARP and the Default Gateway
  • ARP and Broadcast Domains

Quiz will be a combination of multiple choice and short answer

Essay Question: Please briefly describe what ARP does on the LAN. Be very specific in your writing to show that you fully understand what ARP is and how it works.

  • know someone's IP but not MAC

  • send broadcast out to everyone

  • determine whether its on a local or distant address, know whether to ARP directly to the IP address or to the default gateway(if you are pinging google, which is 8.8.8.8, is not on the local LAN)

  • Check your ARP cache before you ARP for anything(Check if the IP address you get are in your ARP cache)

What are the 4 Topologies

What is the most commonly used networking topology?

  • star

what addressing is used at the data link layer

  • MAC address

What layers do NIC work at?

  • physical and data link (because 1 can only talk to 2)