Which of the following protocols operates at the session layer (layer 5)?
A.
RPC
B.
IGMP
C.
LPD
D.
SPX
Explanation:
Remote procedure call (RPC) works at the session layer of the OSI model.
Incorrect Answers:
B: ICMP works at the network layer of the OSI model.
C: LPD (Line Printer Daemon Protocol) is an application layer protocol.
D: SPX is a transport layer protocol.Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 524