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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 slot in the first VC-4 on the short-path line. Then the service between B and C can also occupy the 48th VC-12 time slot in the first VC-4 on the short-path line. Which of the following is the protection subnet type of the ring network?
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 slot in the first VC-4 on the short-path line. Then the service between B and C can also occupy...
OSN 3500 has strong branch service up and down capabilities, with 16 branch outgoing line slots, 504 2M, 32 E4, 117 E3/DS3, 132 STW-1e up and down on a single subrack, providing STM-1/4/16/64 group rate.
OSN 3500 has strong branch service up and down capabilities, with 16 branch outgoing line slots, 504 2M, 32 E4, 117 E3/DS3, 132 STW-1e up and down on a single subrack, providing STM-1/4/16/64 group rate.A . TrueB . FalseView AnswerAnswer: A
Which of the following is not an advantage of using QinQ technology?
Which of the following is not an advantage of using QinQ technology?A . Solve the problem of increasingly scarce public network VLAN ID resourcesB . Provide a simpler Layer 2 VPN solutionC . Different services can be distinguished by different levels of VLAN ID:D . Solve the packet transmission delay...
What is the function of the overhead TCM in ODUk?
What is the function of the overhead TCM in ODUk?A . Channel monitoring unlockingB . Path Trace Identifier OverheadC . Tandem connection monitoring overheadD . General communication channel overheadView AnswerAnswer: C
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.
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.A . TrueB . FalseView AnswerAnswer: B
In Ethernet, the frame length has a lower limit, which is mainly due to the following considerations?
In Ethernet, the frame length has a lower limit, which is mainly due to the following considerations?A . Carrier SenseB . Multi-point accessC . Conflict DetectionD . Improve network bandwidth utilizationView AnswerAnswer: C
The device IP addresses of the gateway network element and non-gateway network element must be set in the same network segment.
The device IP addresses of the gateway network element and non-gateway network element must be set in the same network segment.A . TrueB . FalseView AnswerAnswer: B
If SNCP services with the same source, sink or route are grouped, the SNCP switching speed can be improved.
If SNCP services with the same source, sink or route are grouped, the SNCP switching speed can be improved.A . TrueB . FalseView AnswerAnswer: A
The number of network elements (including REG) in a two-fiber bidirectional multiplex section shared protection ring can exceed 16.
The number of network elements (including REG) in a two-fiber bidirectional multiplex section shared protection ring can exceed 16.A . TrueB . FalseView AnswerAnswer: A
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 processed clock and provide the clock source for other devices that need timing.
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 processed clock and provide the clock source for other devices that need timing.A . TrueB . FalseView AnswerAnswer: B
