Datagram discard code fields in ICMP

Q.  Which among the below stated datagram discard code fields in ICMP is/are generated if a router fails to forward a packet due to administrative filtering?
- Published on 30 Oct 15

a. Source Route Failed
b. Communication Administratively Prohibited
c. Host Precedence Violation
d. Precedence Cut-off in Effect

ANSWER: Communication Administratively Prohibited

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