When multiple users need to share the same VCTRUNK and use the same VLAN ID, the QinQ technology can be used.

When multiple users need to share the same VCTRUNK and use the same VLAN ID, the QinQ technology can be used.A . TRUEB . FALSEView AnswerAnswer: A

November 18, 2018 No Comments READ MORE +

Which of the following statements about the multiplex section remote error indication (MS-REI) is correct?

Which of the following statements about the multiplex section remote error indication (MS-REI) is correct? ① The B2 byte indicates the transmission channel. ② The M1 byte indicates the transmission channel. ③ MS-REI is transmitted from the sink to the source. ④ MS-REI is transmitted from the source to the...

November 11, 2018 No Comments READ MORE +

Which of the following statements about the optical-layer interfaces OTM-n.m and OTM-nr.m of OTN is incorrect?

Which of the following statements about the optical-layer interfaces OTM-n.m and OTM-nr.m of OTN is incorrect?A . n indicates the number of wavelengths carried by the maximum capacity,B . m indicates the rate. The value can be 1, 2, or 3.C . r indicates OTM without the OSC function..D ....

November 9, 2018 No Comments READ MORE +

Which of the following statements about the 1+1 protection of cross-connect boards are correct? (Multiple Choice)

Which of the following statements about the 1+1 protection of cross-connect boards are correct? (Multiple Choice)A . The source service board sends services to the active and standby cross-connect boards.B . After service cross-connections are completed, the active and standby cross-connect boards send the data of the active cross-connect board...

October 26, 2018 No Comments READ MORE +

In a WDM system, using a dielectric thin film filter (TFF) is ideal when fewer than () wavelengths are used.

In a WDM system, using a dielectric thin film filter (TFF) is ideal when fewer than () wavelengths are used.A . 4B . 8C . 16D . 20View AnswerAnswer: C

October 23, 2018 No Comments READ MORE +

When the SXCS board is configured for an OSN 3500, which of the following is the access capacity of the subrack in full configuration?

When the SXCS board is configured for an OSN 3500, which of the following is the access capacity of the subrack in full configuration?A . 35GB . 58.75GC . 80GD . 155GView AnswerAnswer: D

October 20, 2018 No Comments READ MORE +

Which of the following is the frame whose VC-4 J1 byte is indicated by the current frame's AU pointer?

Which of the following is the frame whose VC-4 J1 byte is indicated by the current frame's AU pointer?A . Current frameB . Next frameC . Previous frameD . None of the aboveView AnswerAnswer: B

October 20, 2018 No Comments READ MORE +

Which of the following are the electrical-layer overheads of OTN? (Multiple Choice)

Which of the following are the electrical-layer overheads of OTN? (Multiple Choice)A . OPUkB . ODUkC . OChD . OTUkView AnswerAnswer: ABD

October 1, 2018 No Comments READ MORE +

Which of the following factors cause this limitation?

The standard Ethernet frame length should not be less than 64 bytes. Which of the following factors cause this limitation? (Multiple Choice)A . Minimum transmission distanceB . Maximum transmission distanceC . Working mechanism of conflict detectionD . MAC addressView AnswerAnswer: BC

September 25, 2018 No Comments READ MORE +

When LMSP is configured, there are two switching modes: single-ended switching and dual-ended switching. The protection protocol does not need to be enabled for single-ended switching.

When LMSP is configured, there are two switching modes: single-ended switching and dual-ended switching. The protection protocol does not need to be enabled for single-ended switching.A . TRUEB . FALSEView AnswerAnswer: A

August 29, 2018 No Comments READ MORE +