$1.$User requests a Web page with some text and $3$ images. How many GET requests will be sent?

$2.$ Which layer is responsible for routing a packet from one host to another across multiple routers?

application

transport

network

link

physical

$3.$ which layer is responsible for getting a packet to the right process, once it has

been received by the host?

$4.$what type of DNS request asks for the name of an authoritative server?