A two-fiber ring topology consisting of three NEs is arranged in the counterclockwise sequence as A, B, and C. Services between A and C occupy the 48th VC-12 timeslot in the first VC-4 on the short path, and services between B and C also occupy the 48th VC-12 timeslot in the first VC-4 on the short path. In this case, which of the following is the subnet type of the ring protection?

Unidirectional path protection ring

Which of the following statements about the sequence of a signal flow between the SDH interface and the cross-connect unit is correct?

SPI< >RST< >MST< >MSP< >MSA< >HPT

SPI< >RST< >MSA< >MSP< >MST< >HPT

SPI< >MST< >RST< >MSA< >MSP< >HPT

SPT< >MST< >MSA< >RST< >MSP< >HPT

Which of the following statements about extended ECC is incorrect?

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.

Extended ECC is classified into automatic extended ECC and extended ECC in specified mode.

Automatic extended ECC indicates using a straight-through cable to connect the Ethernet ports of two NEs.

Extended ECC in specified mode indicates that the server and client need to be specified.

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.

Which of the following statements about U2000 license is incorrect?

Formal U2000 license varies depending on operating system platforms. You must apply for a U2000 license based on the specific operating system.

Each license file corresponds to the equipment serial number (ESN) of one U2000 computer, and therefore can be used only on the corresponding computer.

Formal U2000 license varies depending on operating system platforms. You must apply for a U2000 license based on the specific operating system.

The U2000 license file is named in the 'xxxxxxx.dat' format.

Do not modify license files. Otherwise, the license files will fail.

Which of the following statements about an MSP ring are correct? (Multiple Choice)

The number of nodes on an MSP ring cannot exceed 16.

When creating a protection subnet, select SDH NEs only. Do not select REG or WDM NEs.

When multiple protection subnets occupy the same port on the same board, you must select 'Resource Sharing'.

'Assigned by VC4' means that different VC4s are assigned to different protection subnets to achieve MSP only in some channels.

The number of nodes on an MSP ring cannot exceed 16.

When creating a protection subnet, select SDH NEs only. Do not select REG or WDM NEs.

When multiple protection subnets occupy the same port on the same board, you must select 'Resource Sharing'.

'Assigned by VC4' means that different VC4s are assigned to different protection subnets to achieve MSP only in some channels.

The 1310 nm and 1550 nm transmission windows are low-loss windows. In DWDM systems, only the 1550 nm transmission window is used. Which of the following is the major cause?

The working wavelength flatness area of the EDFA is included in this window.

The non-linear effect of the 1550 nm wavelength area is small.

The 1550 nm wavelength area is applicable to long-haul transmission.

An Ethernet private line service is set up between HI (HQ) and H2 (branch) of enterprise H, and five VC-12s are bound in the corresponding VCTRUNK. When one VC-12 fails, the Ethernet private line between HI and H2 is not interrupted. Therefore, which of the following statements is correct?

The LCAS function is enabled on the VCTRUNK ports used by the Ethernet private line service between HI and H2.

The LCAS function is enabled on the ports used by the Ethernet private line service between HI and H2.

The LCAS function is enabled on the VCTRUNK ports used by the Ethernet private line service between HI and H2.

The QinQ function is enabled on the ports used by the Ethernet private line service between HI and H2.

The QinQ function is enabled on the VCTRUNK ports used by the Ethernet private line service between HI and H2.

Which of the following operations may interrupt NE services? (Multiple Choice)

Searching for protection subnets

Huawei H31-311 Practice Test 2 - Free Online Exam Questions 41-80

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