At which layer of the OSI model does IPsec operate?
A. network
B. transport
C. session
D. application
Answer: A
On point-to-point networks, OSPF hello packets are addressed to which address?
A. 127.0.0.1
B. 172.16.0.1
C. 192.168.0.5
D. 223.0.0.1
E. 224.0.0.5
F. 254.255.255.255
Answer: E
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