Questions

ICMP is Internet Control Message Protocol, a network layer protocol of the TCP/IP suite used by hosts and gateways to send notification of datagram problems back to the sender. It uses the echo test / reply to test whether a destination is reachable and responding. It also handles both control and error messages.

The Buddh International Circuit, an Indian motor racing circuit, is located in Greater Noida.

The each degree of latitude is equals to 111 kms approx (69 miles). As Earth is lightly ellipsoid in shape it changes at equator and poles from 110.5 kms to 111.7 kms respectively.

A battle was fought between Iran under the king Darius and the state of Greece in 490 B.C at Marathon near Athens. This battle is known as the 'Battle of Marathon' in World History.

Claude Bernard was a French physiologist, who first recognised plant stomata opening and closing to maintain homeostasis.

Animals and people who eat both animals and plants i.e, both producers and consumers are called omnivores.