Contour lines close together indicate ___ slope.

A series of straight parallel and equally spaced contours represent ____

Which of the following cannot be done with the help of theodolite in surveying?

The vertical circle is a circular graduated arc attached to the __ axis of the telescope.

The index frame is __ shaped frame.

ISDN is an abbreviation for

This protocol is used by network devices, like routers, to send error messages and operational information indicating unavailability of a service/host

The address resolution protocol (ARP) is used for

A “firewall” in network security is a

The seepage pressure always acts ___