Computer Networking
A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as

User Agent
mail gateway
bridges
None of these
Gateways

ANSWER DOWNLOAD EXAMIANS APP

Computer Networking
RS-232-G

is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment
is an interface between two data circuit terminating equipment as examplified by a local and remote modem
requires only 7 pin out of 25 in order to transmit digital data over public telephone lines
specifies only the mechanical characteristics of an interface by providing a 25-pin connector
None of these

ANSWER DOWNLOAD EXAMIANS APP