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Forced switching, fiber cut switching, manual switching, and exercise switching are in the descending order of priority.
Which of the following is the multiplexing mode of SDH?
The last 256 columns in the OTN frame structure are FEC areas, which are used for forward error correction.
OTM nr.m consists of a maximum of 'n' optical multiplexing channels and does not support non-channel-associated overheads. The letter 'r' indicates function reduction.
Both PDH and SDH have globally unified standards.
MAC loopback and PHY loopback are used for fault locating. When the MAC loopback is set to an inloop, you can set the PHY loopback according to the actual situation.
On the NMS, the NE performance monitoring time is set to () minutes and () hours,
When the ACT indicator of an SDH board is off, it indicates that this board has a hardware fault and cannot be used,
Which of the following ITU-T recommendations defines the OTN frame structure?
When a bridge uses the IVL learning mode, the entry in the MAC address table is created according to the source MAC address and source port of the data frame. This entry is valid for all VLANs.

Question 61 - H31-311 discussion

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Which of the following statements about extended ECC is incorrect?

A.
Extended ECC is classified into automatic extended ECC and extended ECC in specified mode.
Answers
A.
Extended ECC is classified into automatic extended ECC and extended ECC in specified mode.
B.
Automatic extended ECC indicates using a straight-through cable to connect the Ethernet ports of two NEs.
Answers
B.
Automatic extended ECC indicates using a straight-through cable to connect the Ethernet ports of two NEs.
C.
Extended ECC in specified mode indicates that the server and client need to be specified.
Answers
C.
Extended ECC in specified mode indicates that the server and client need to be specified.
D.
Automatic extended ECC can be enabled on a maximum of four NEs. In manual extended ECC mode, each server can be connected to a maximum of three clients.
Answers
D.
Automatic extended ECC can be enabled on a maximum of four NEs. In manual extended ECC mode, each server can be connected to a maximum of three clients.
Suggested answer: D
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asked 18/09/2024
Kareem Dadoul
43 questions
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