H31-311_V2.5 Exam Questions

For OSN6800 equipment, which of the following slots does not have an electrical layer cross- backplane bus?

The dispersion coefficient is the time delay difference caused by the optical wavelength signal passing through the unit length of optical fiber within the unit wavelength interval...

When LCK is inserted into the local ODUk signal, which processing will the downstream station system not perform?

Pointer adjustment is related to which of the following?

Which of the following descriptions about multiplexing is correct? During byte interleaving multiplexing, the information payload and pointer bytes of each frame are interleaved an...

The current sparse wavelength division multiplexing system generally operates in the band from 1271nm to 1611nm. Which of the following is the channel spacing?

How many 2M business work boards does OSN 7500 support at most? Which of the following is correct?

Which of the following alarms is not a switching condition for a two-fiber bidirectional multiplex section protection ring?

Which of the following databases is used by U2000 on PC/WIN2003?

MPLS is a label forwarding technology. Which of the following was its original design purpose?

The value range of U-PTR is 0~782. When the receiving end receives invalid pointer values for 8 consecutive frames, which of the following alarms will the device generate?

Which of the following is the monitoring overhead used to monitor and report OTUk_DEG and OTUk_EXC alarms.

Which of the following statements is wrong?

Which of the following boards supports QinQ function?

Which of the following descriptions about the FIU board is correct?

The multi-frame loaded 2M signal is the information of which time period?

In terms of protection capability, which of the following topologies has the strongest protection capability?

What is the function of the overhead TCM in ODUk?

In which of the following optical fibers will the four-wave mixing phenomenon be most serious when the optical signal propagates, and will also cause the greatest transmission dama...

Which of the following reasons will not cause the network management to report a MUT_LOS alarm?

The SDH frame structure is a rectangular block frame based on which of the following options?

RAMAN amplifier utilizes which of the nonlinear effects?

The negative adjustment position of the TU pointer is at which of the following bytes?

A 2.2m cabinet can accommodate up to which of the following OSN 2500 sub-racks?

A two-fiber ring topology consists of three network elements, which are arranged in counterclockwise order as A, B, and C. The service between A and C occupies the 48th VC-12 time...

Which of the following is not an advantage of using QinQ technology?

To which of the following levels does the U2000 network management belong?

MPLS is not a service or application, it is actually a tunnel technology.

The Ethernet board has an external port (Port) and an internal port (VCTRUNK). The external port can set the Tag attribute, but the internal port cannot set the Tag attribute.

STM-N signals must be scrambled when transmitted on the line, mainly to facilitate the receiving end to extract the line timing signal. All bytes in the SDH frame structure will be...

OChr means using electrical monitoring technology

FAS is the frame alignment overhead with a length of 6 bytes. The 1st to 3rd bytes are 3 OA1 bytes, each OA1 is always "1111 0110"; the 1st to 6th bytes are 3 OA2 bytes, each OA2 i...

When the bridge uses IVL learning mode, an entry in the MAC address table is created based on the original MAC address and original port of the data frame. This entry applies to al...

If SNCP services with the same source, sink or route are grouped, the SNCP switching speed can be improved.

The device IP addresses of the gateway network element and non-gateway network element must be set in the same network segment.

When configuring LMSP, there are two switching modes: single-ended switching and dual-ended switching. Single-ended switching does not require the protection protocol to be enabled...

Linear MSP (LMSP) has two modes: 1+1 and 1:1. Additional services can only be configured for the protection channel in the 1:1 mode of LMSP.

The clock unit can only access the external clock source as the timing signal source of the system through the external clock interface. In addition, it can also output the process...

Which of the following IP addresses is a Class C IP address?

Which of the following is correct about the difference between a wide area network and a local area network?

When setting the monitoring time for network element performance events, which of the following should the time be set to?

Which of the following protocols does not belong to the MPLS signaling protocol?

Which of the following overhead does not belong to ODUk overhead?

Which of the following adjustments will cause the information payload area to carry the most information payload?

Four network elements form an STM-4 bidirectional multiplex section protection ring. Which of the following is the maximum service capacity of the network?

IEEE802.3 standard is developed for which of the following technologies?

Which of the following VLAN numbers can be provided by QINQ technology?

Which of the following descriptions about the slot settings of the OSN 6800 subrack is wrong?

Which of the following is the OPUk payload structure identification overhead?

When which of the following situations occurs, the network management will report the ODUk_PM_DEG alarm?