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NEW QUESTION # 60
Which of the following is the meaning of "L" in the optical module parameter "L-642"?
- A. Dispersion coefficient
- B. Transmission distance
- C. Emission wavelength
- D. Receiving wavelength
Answer: B
NEW QUESTION # 61
In the electrical layer application scenario of end-to-end tributary board interconnection, what are the interconnection requirements for tributary boards? (Multiple choice)
- A. Same type of business
- B. Same optical channel
- C. The business mapping path is the same
- D. FEC working status is the same
Answer: A,B
NEW QUESTION # 62
Which of the following description about the TNG2WSMD9 single board are correct? (Multiple choice)
- A. The board supports optical power adjustment and online optical power detection
- B. 9-port wavelength selective multiplexing board (ultra-wide C-band)
- C. Realize the optical layer level signal service scheduling of multiple wavelengths
- D. The WSMD9 single board belongs to the dynamic optical add-drop multiplexing unit
Answer: A,C,D
NEW QUESTION # 63
Which of the following is the common point between the two-fiber bidirectional multiplex section shared protection ring and the four-fiber bidirectional multiplex section protection ring?
- A. Section switching
- B. Agreement required
- C. The network capacity is KSTM-N
- D. The multiplex section protocol travels on the protection channel
Answer: B
NEW QUESTION # 64
What is the networking mode of a parallel FOADM site?
- A. EX40+ EMR8
- B. EX40+EX40
- C. MR4+MR4
- D. EMR8+EMR8
Answer: A
Explanation:
A parallel FOADM site typically uses an EX40+EMR8 networking mode, where EX40 handles add/drop functions and EMR8 manages multiplexing and amplification.
NEW QUESTION # 65
Which of the following is the basic requirement of the DWDM system on the light source?
- A. Low dispersion tolerance
- B. High transmit power
- C. Using the direct modulation method
- D. The output wavelength is stable
Answer: D
NEW QUESTION # 66
The optical amplification unit can make up for the line loss and increase the transmission distance, and the system transmission distance can be extended to infinity through multi-level cascading.
- A. False
- B. True
Answer: A
NEW QUESTION # 67
LDG supports electrical layer scheduling at the ODU1 level.
- A. False
- B. True
Answer: A
NEW QUESTION # 68
At an OLA site, the maximum output optical power of the OAU is 20 dBm. It is used in an 80-wavelength C-band system. 10 waves are actually enabled. There is no spectrum analysis board, and the combined signal needs to be used for commissioning. How much dBm should be adjusted for the output optical power of the OUT port?
- A. 20 dBm
- B. 5 dBm
- C. 11 dBm
- D. 1 dBm
Answer: C
NEW QUESTION # 69
Which of the following descriptions about oTN optical layer interfaces OTM-nm and OTM-nr.m is wrong?
- A. OTM-nr.m plus osC signal becomes OTM-nm
- B. m represents the speed, which can only take the value of 1, 2, 3
- C. r indicates that the 0T call has removed some functions, here it means that the 0c function has been removed
- D. n represents the number of waves carried at the highest capacity
Answer: B
NEW QUESTION # 70
The parameter () is usually used to measure the impact of bit errors on transmission quality
Answer:
Explanation:
BER
NEW QUESTION # 71
Which of the following descriptions about the TNF6TTA board is correct? (Multiple choice)
- A. When the service on the client side is STM-64, the port working mode can be set to ODU2 non-aggregation mode.
- B. The total bandwidth is 40 Gbit/s, supporting 20 ODU0, 10 ODU1/ODUflex, and 4 ODU2/ODU2e signals to realize cross-scheduling of services through the backplane bus and the cross-connect board.
- C. When the service on the client side is HD-SDI, the port working mode can be set to ODU1 non-aggregation mode.
- D. When the customer service is 3G-SDI, the port working mode can be set to ODUflex non-aggregation mode.
- E. When the service on the client side is GE, the port working mode can be set to ODU0 non-aggregation mode.
Answer: A,B,C,D,E
NEW QUESTION # 72
Services cannot be automatically switched to the protection channel when the working channel of optical line protection is faulty. Which of the following are possible causes? (Choose all that apply.)
- A. The protection channel us faulty.
- B. The protection group parameters are configured incorrectly.
- C. The WTR time is too long.
- D. The locking command is issued manually.
Answer: A,B
Explanation:
A manual lock command prevents automatic switching.
Incorrect protection group parameters can disable failover.
If the protection channel is faulty, it cannot take over traffic.
NEW QUESTION # 73
MPLS is not a service or application. It is actually a tunneling technology.
- A. False
- B. True
Answer: B
NEW QUESTION # 74
In the non-converged OTU processing OTN standard signal scenario, both A and B are WDM sites, and the client side of the OTU at station A receives the RLOS signal; after processing the alarm at the WDM side of the OTU, it is transmitted to station B The OTU WDM at station B will detect the ODUk PM AIS alarm and generate an SF event; trigger channel service switching. The alarm continues to be sent to the downstream client device of station B, and an ODUK_PM_AIS alarm is reported to the client device.
- A. False
- B. True
Answer: B
NEW QUESTION # 75
If the cumulative amount of dispersion exceeds the system's dispersion tolerance, it will cause bit errors at the receiving end.
- A. False
- B. True
Answer: B
NEW QUESTION # 76
Which of the following boards belong to the dynamic optical bifurcation multiplexing board? (Multiple choice)
- A. RDU9
- B. WSM9
- C. DWSS20
- D. M48V
Answer: A,B,C
NEW QUESTION # 77
Among the GSCC single boards of the following versions, which supported by the CF card?
- A. N1GSCc
- B. N6GSCC
- C. N4GSCC
- D. N3GSCC
Answer: D
NEW QUESTION # 78
The last 256 columns of the OTN frame structure are FEC areas, whose function is forward error correction.
- A. False
- B. True
Answer: B
NEW QUESTION # 79
Among OTN network interfaces, the internal network interface of the same operator is an intra-domain interface. The intra-domain interface is divided into indirect laVI of different manufacturers' equipment and IrVI of the subnet interface of the same manufacturer's equipment according to different equipment manufacturers.
- A. False
- B. True
Answer: A
NEW QUESTION # 80
The nominal rate of OTU4 signals is 111,809,973.568 kbit/s. Generally, the line rate is regarded as 112 Gbit/s.
- A. FALSE
- B. TRUE
Answer: B
Explanation:
The nominal rate of OTU4 signals is precisely 111,809,973.568 kbit/s, which is generally rounded to 112 Gbit
/s for practical purposes. This nominal rate corresponds to the standardized high-speed optical transport designed to support extremely high-capacity networks. The rounding simplifies communication and equipment specifications without losing significant accuracy. HCIP-Transmission references this value when discussing OTN signal rates and the design of optical transmission systems to handle next-generation bandwidth demands.
NEW QUESTION # 81
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