Question

Which two of the following network protocols do not use TCP?
O FTP
HTTP
w
I ICMP
2
DHCP
Which of the following commands can be used to check if port 808​

Answer 1

Answer:

The most common alternative is UDP ( user datagram protocol ). UDP is designed for applications where you don't need to put sequences of packets together. It fits into the system much like TCP.

Answer 2

Answer:

ICMP and DHCP protocols do not use TCP.

Explanation:

What is ICMP?

Network devices employ the Internet Control Message Protocol (ICMP), a network layer protocol, to identify problems with network connectivity. ICMP is not linked to a transport layer protocol like TCP or UDP, unlike the Internet Protocol (IP). As a result, one device does not need to establish a connection with another device in order to transmit an ICMP message, making ICMP a connectionless protocol.

What is DHCP?

User Datagram Protocol (UDP) and Internet Protocol are used by the application-layer protocol known as Dynamic Host Configuration Protocol (DHCP). A connectionless service paradigm is used by DHCP, which makes use of the User Datagram Protocol (UDP). It uses two UDP port numbers for the operation that are identical to those used by the bootstrap protocol (BOOTP). The client uses UDP port number 68 whereas the server uses UDP port number 67 as its target port.

Thus, FTP and HTTP network protocols use TCP.