Answer 3:-
A:- When it is very expensive and slow to access the external network then we use Forwarding name server . What is does keep the records of frequently visited sites in local DNS cache. This improves the efficiency .
B:- Round Robin mechanism is used for load balancing . DNS hold maximum record of entry. In round and robin mechanism it allocate IP address to the requested client as per the availability and making the server highly available .
Answer 4:- "in.addr-arpa" is used to remove the obstruction to subnet on non-octet boundaries. Thus making it possible to assign IP address in smaller octet then 24 bit prefix without losing the ability to delegate authority for in.addr-arpa mapping.
In "in.addr-arpa" this Client request
A:- When it is very expensive and slow to access the external network then we use Forwarding name server . What is does keep the records of frequently visited sites in local DNS cache. This improves the efficiency .
B:- Round Robin mechanism is used for load balancing . DNS hold maximum record of entry. In round and robin mechanism it allocate IP address to the requested client as per the availability and making the server highly available .
Answer 4:- "in.addr-arpa" is used to remove the obstruction to subnet on non-octet boundaries. Thus making it possible to assign IP address in smaller octet then 24 bit prefix without losing the ability to delegate authority for in.addr-arpa mapping.
In "in.addr-arpa" this Client request