Match the following to the best fitting answer the job of tcp is to answer 1 fault tolerance provides answer 2 routers work to answer 3 tcp and router systems are answer 4

TCP and router system is the best fitting answer.

Explanation:

In network TCP IP address plays major roles. Without TCP even network will not work.  To access the internet we need TCP address. TCP is required to send an email or chatting software or VPN connectivity. To get access or connect computer or desktop or workstation TCP  plays major roles.

To send an email id we need from address and to address at the same time to send mail we need TCP and their router systems. To check whether we are connected to network router we use PING command in DOS  MODE  for that TCP IP address is required.