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Discover Protocols in IoT

  • How are resources discovered in traditional networks?
  • What are the services offered by DNS
  • Why can’t we centralize DNS
  • What are 4 types of DNS servers
  • How is DNS being cached
  • What is the general Resource record format
  • what is a TXT record
  • What is a SRV record
  • What are the restrictions on the type of value that a SRV record points to
  • Is there any difference between DNS query and reply message formats?
  • What is the DNS message format
  • How to attack DNS
  • What is an resource
  • What are the key features of discovery protocols
  • What are the components of zero config networking
  • What is LLA
  • LLA ranges for IPv4 and IPv6
  • Mention the key difference between LLA in IPv4 and IPv6
  • What is mDNS
  • mDNS IP and port
  • What are the advantages of mDNS
  • What the three types of mDNS query behaviors
  • How to do one shot queries using dig
  • What is answer suppression in mDNS
  • How to remove a name in mDNS
  • How to announce a name in mDNS
  • How to handle name collisions in mDNS
  • How does DNS-SD work?
  • What is the query structure of DNS-SD
  • Possible issues with DNS-SD