(single) Is the following description correct? In the routing table entry, only the next hop and the outbound interface (Nexthop/Interface) can be used for the same destination address and mask (Destination/Mask).

• A.False
• B.True

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Command ../.profile, the three points, which are correct? (Multiple choice)

• A.The third point . before the profile, whole .profile is a file name, represent hidden files
• B.The third point . is connected to front /, represents the root directory
• C.The second point . is connected to back /, . / represent the current directory
• D.The first point . means execute, same as sh

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(single) What does the ONT PON indicator light indicate?

• A.ONT illuminating abnormality
• B.ONT has established a connection with the OLT
• C.ONT tries to establish a connection with the OLT
• D.ONT receiving optical power is lower than light receiving sensitivity

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(multiple) In the GPON network, which of the following reasons may cause the ONT to not be automatically discovered?

• A.The ONT auto-discovery function of the GPON port is not enabled.
• B.The optical power received by the ONT is greater than the overload optical power.
• C.OLT uplink port down
• D.The optical power received by the ONT is less than the sensitivity value.

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(single) Monitoring of environmental quantity refers to monitoring of environmental factors that may cause equipment damage, failure, and the like. Which of the following is not an object of environmental monitoring?

• A.Flooding
• B.Humidity
• C.Temperature
• D.Board status

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