Helping Hand Questions for H35-260

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Question 36

Both the 1310nm and 1550nm transmission windows are low-loss windows. In the DWDM system, only the 1550nm transmission window is used. Which of the following options is the main reason?

Options:

EDFA operating wavelength flat region includes this window

Small nonlinear effects in the 1550nm wavelength region

1550nm wavelength region is suitable for long distance transmission

1550nm window loss is smaller than 1310nm window

Question 37

Regarding PW labels and tunnel labels, which of the following statements are correct?

Options:

PW labels are mainly used to distinguish PWs, but for CES services, because CES services do not support aggregation, there is no need to use PW labels

Tunnel label is mainly used for transmission in the tunnel, it mainly uses the tunnel label to establish MPLS tunnel

They are all based on MPLs tags

PW signing only needs negotiation between the source and sink network elements, and has nothing to do with the intermediate

tansit network elements

Question 38

A company has a class C IP address segment 198.160.110.0/24. The company has 6 departments, each department is located in a different subnet, and the number of hosts in each subnet

is the same as 25-30. Which of the following can be used as the subnet mask to reasonably plan the P address space?