Iterative Query

i$.$ Between steps $1$ and $2,$ where does the Local DNS server check

first?.

ii$.$ Between steps $2$ and $3,$ where does the root DNS forward the request to$?$

iii. Between steps $4$ and $5,$ assuming the TLD DNS server doesn't have the IP we want, where does the response link? iv$.$ Between steps $6$ and $7,$ the authoritative DNS server responds with the IP we want. What type of DNS record is returned?

Recursive Query

i$.$ Between steps $1$ and $2,$ where does the Local DNS server check first?

ii$.$ Between steps $2$ and $3,$ where does the root DNS forward the request to$?$ iii. Between steps $4$ and $5,$ where does the authoritative DNS forward the response to$?$

iv$.$ In steps $6-8,$ the response is sent back in the reverse direction until it reaches the user. What type of DNS record is returned?

v$.$ Which type of query is considered best practice: iterative or recursive? Elaborate your answer.