- All Exams Instant Download
Which of the following are not precautions for the preliminary test?
Which of the following are not precautions for the preliminary test?A . Before the test, check whether the required test lines are complete, the type of connector and the applicability of the instrument, and whether the connection is good. B. Prepare cotton swabs and alcohol, and pay attention to the...
Which of the following statements about the main and backup channels of optical line protection is wrong?
Which of the following statements about the main and backup channels of optical line protection is wrong?A . "Initial Difference Between Active and Standby Channels (dB)" ― It is used to set the reference value of the optical power difference between the active and standby channels of the board. B....
A new TN55ND2 board was added to the OSN8800 device, and it was found that the board could not go online. Which of the following are impossibility reasons?
A new TN55ND2 board was added to the OSN8800 device, and it was found that the board could not go online. Which of the following are impossibility reasons?A . The main controller has SWDL_AUTOMATCH_INH alarm B. The main controller has SWDL_PKG_ NOBDSOFT alarm C. The main controller has SWDL_CHGMNG_NOMATCH alarm...
Using the integral method to measure the OSNR value of a 100G signal, the integrated value of the signal power + noise power in the channel interval read from the OSA is 9.68uW, the integrated value of the noise power in the channel interval is 29.58nW, and the signal center frequency is 0.1nm. The integrated power within is 7.395nW, then the OSNR value is?
Using the integral method to measure the OSNR value of a 100G signal, the integrated value of the signal power + noise power in the channel interval read from the OSA is 9.68uW, the integrated value of the noise power in the channel interval is 29.58nW, and the signal center...
Regarding the electrical layer protection ODUk SNCP and branch SNCP, which item is different from the following description?
Regarding the electrical layer protection ODUk SNCP and branch SNCP, which item is different from the following description?A . Cross grain B. Scope of protection C. Protected Subtypes D. Working principleView AnswerAnswer: B
Two MSP rings intersect, and there is coexistence of SNCP and MSP protection in one of the network elements at the intersection point. How to solve the secondary switching phenomenon caused by the coexistence of protection?
Two MSP rings intersect, and there is coexistence of SNCP and MSP protection in one of the network elements at the intersection point. How to solve the secondary switching phenomenon caused by the coexistence of protection?A . Set the delay time when configuring the MSP cross-connect B. Set the delay...
If the instrument transmits data at a frame rate of X and receives data at a frame rate of Y, then packet loss rate = (XY)/X*100%, usually packet loss rate + throughput = 1
If the instrument transmits data at a frame rate of X and receives data at a frame rate of Y, then packet loss rate = (XY)/X*100%, usually packet loss rate + throughput = 1A . TRUE B. FALSEView AnswerAnswer: A
For the 1+1 protection in the OTU board with external OLP, it supports non-extended mode and extended mode. The extended mode adds switching conditions of the electrical layer.
For the 1+1 protection in the OTU board with external OLP, it supports non-extended mode and extended mode. The extended mode adds switching conditions of the electrical layer.A . TRUE B. FALSEView AnswerAnswer: A
The following is the network parameter planning of an engineer’s network management server, among which planning is correct? (Multiple choice)
The following is the network parameter planning of an engineer’s network management server, among which planning is correct? (Multiple choice)A . Network management server host name: Server123- B. Stand-alone system (Windows) IP address planning: IP address: 129.9.1.1/255.255.255.0; gateway: 123.9.1.254 C. A network server with 2000 equivalent network elements, the planned...
Which of the following descriptions of 100G system protection configuration is correct?
Which of the following descriptions of 100G system protection configuration is correct?A . When using OLP or DCP with an LSC board to achieve 1+1 protection within the board, the switching mode can be set to single-ended switching or double-ended switching B. When the scheduling granularity of the NS4 board...
