Which protocol is used by ping to test connectivity between network hosts?
- ARP
- ICMP
- TCP
- DHCP
Answers Explanation & Hints: The Internet Control Message Protocol (ICMP) is used by ping to test connectivity between network hosts. The Address Resolution Protocol (ARP) is used to map IP addresses to MAC addresses. The Dynamic Host Configuration Protocol (DHCP) is used to dynamically assign IP addresses to network hosts. The Transmission Control Protocol (TCP) is considered a reliable protocol that segments the application layer data into segments for transmission.