1.Given: Two-way splitter insertion loss is 4 dB, diplex filter insertion loss is 1 dB, and interconnecting cable loss is 1 dB.Assuming a nominal signal level of 0 dBmV at Point J in the figure, what is the expected upstream signal level at Point K in the figure?

　　A: 0 dBmV

　　B: +46 dBmV

　　C: +55 dBmV

　　D: +58 dBmV

　　E: +61 dBmV

　　Correct Answers: B

　　2.In order to enable baseline privacy, which are the minimum items required? (multiple answer)

　　A:Crypto images on the CMs and CMTSs

　　B:Class-of-Service Privacy Enable (0/1): 1

　　C:Have P images on the CMs and CMTSs

　　D:CMTS Authentication (0/1): 1

　　E:cable shared-secret [0 | 7] authentication-key

　　Correct Answers:　A, B

　　3.A router has the above routes listed in its routing table and receives a packet destined for 172.16.0.45. What will happen?

　　A: The router will not forward this packet, since it is destined for the 0 subnet.

　　B: The router will forward the packet through 172.31.116.65, since it has the lowest metric.

　　C: The router will forward the packet through 10.1.1.1.

　　D: The router will forward the packet through 172.31.116.65, since it has the lowest administrative distance.