A ________ is a server that appears to the client as if it were an origin server.
A) tunnel
B) proxy
C) gateway
D) all of the above
Correct Answer:
Verified
Q29: The Internet mail architecture is currently defined
Q30: The _ accepts the message submitted by
Q31: _ supplements SMTP and allows the encapsulation
Q32: The protocol that is used for transfer
Q33: The _ domain is dedicated exclusively for
Q35: _ is an extension to the RFC
Q36: The _ accepts each arriving message and
Q37: _ is a facility that allows users
Q38: Examples of an _ include a department
Q39: Defined in RFC 821,_ is the standard
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