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Free H35-260 Exam Braindumps (page: 40)

Page 39 of 85
PDF with 338 Questions

Which of the following types of protection is electrical layer protection?

  1. Optical Line Protection QLP
  2. Tributary SNCP Protection
  3. Client side 1+1 protection
  4. +1 protection inside the board

Answer(s): B



In the following label operation modes, which options does the PTN device support?

  1. PUSH
  2. SWAP
  3. POP
  4. PHP

Answer(s): A,B,C



Which of the following identification fields in the data packet header of each protocol layer cannot identify the upper layer data type carried by this layer

  1. TTL
  2. TYPE
  3. Protocol
  4. Source Port

Answer(s): A



Which of the following statements about 100G coherent PDM-QPSK modulation is incorrect?

  1. The essence of QPSK modulation is to reduce the baud rate of the optical signal by half without reducing the line rate by selecting 4 possible values in the phase of the optical field.
  2. PDM-QPSK technology is the main modulation code technology for 100G transmission, which can reduce the line rate of 112Gb/s to the baud rate of 28Gbaud/s, greatly reducing the loan requirements for (optical)
    electrical devices.
  3. PDM polarization multiplexing technology is adopted, which has better nonlinear tolerance than 40GePDM-BPSK.
  4. PDC-QPSK supports DCMfree and DCM system applications, and supports smooth upgrade from existing 10G/40G network to 100G system.

Answer(s): C






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