An empty frame used to reserve space for a picture to be inserted at a later time is known as a Placeholder
Answer:
The answers are: it is used to enable fast DNS queries and It can help reduce the amount of network traffic generated by DNS servers.
Explanation:
Because a DNS server can resolve a query from tis local data sends a recursive qyery to a root server.
Answer:
to check to see if some expression is true, and if it is do something, otherwise do something else. An if/else statement requires you to define an expression that evaluates to true or false.
Explanation:
Answer:
Usually, it's because of taxes and insurance.