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NEW QUESTION # 403
When the rate of the SNCP ring composed of four OptiX OSN2500 devices is 2.5 Gbit/s, the service capacity of the network can carry a maximum of () 2 Mbit/s signal
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 404
When a bit False is detected in B2 bytes, which of the following alarms is reported by the peer?
- A. MS-FEBBE
- B. MS-AIS
- C. MS-BBE
- D. RS-BBE
Answer: A
NEW QUESTION # 405
When configuring 1+1 optical line protection, you can select RI1/TO1 or RI2/T02 as the working channel according to the actual situation.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 406
Optical monitoring channel is used for monitoring of WDM optical transmission systems. In the UU-T recommendation, it is preferable to use a 1510 nm wavelength of the a ") rate.
- A. 2 Mbit/s
- B. 64 kbit/s
- C. 192 kbit/st
- D. 5676 kbit/s
Answer: A
NEW QUESTION # 407
Fiber amplifiers can be divided into rare earth ion doped fiber amplifiers (Rare Earth Ion Doped Fiber Amplifier) and nonlinear fiber amplifiers. The working principle of rare earth ion doped fiber amplifiers is stimulated radiation; while nonlinear fiber amplifiers use the nonlinear effect of optical fibers to amplify optical signals.
- A. False
- B. True
Answer: B
NEW QUESTION # 408
Sending test frames will affect normal business.
- A. True
- B. False
Answer: B
NEW QUESTION # 409
When which of the following situations occurs, the network management will report the ODUk_PM_DEG alarm?
- A. The ODU layer, i.e., M, sets the bit error limit. When the number of bit errors exceeds the specified bit error excess threshold
- B. The ODUk TCM layer signal is degraded and the number of bit errors exceeds the specified excessive bit error threshold
- C. The PM segment of the ODU layer has bit error degradation, and the number of bit errors exceeds the specified bit error degradation threshold
- D. The ODUk TCM layer bit error exceeds the limit, and the number of bit errors exceeds the specified bit error degradation threshold
Answer: C
NEW QUESTION # 410
It is not recommended to configure EPLAN services as a ring. If EPLAN services are configured as a ring network, the STP protocol must be enabled on the network to prevent broadcast storms.
- A. False
- B. True
Answer: B
NEW QUESTION # 411
The standard Ethernet frame length should be no less than 64 bytes, which is determined by the working mechanism of () and collision detection.
Answer:
Explanation:
Carrier Sense Multiple Access
NEW QUESTION # 412
The process from C4 to VC4 during the multiplexing process is rate adaptation.
- A. True
- B. False
Answer: B
NEW QUESTION # 413
Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?
- A. 802.1a
- B. 802.1d
- C. 802.11ab
- D. 802.1q
Answer: D
NEW QUESTION # 414
Which of the following statements about basic LCAS functions are correct? (Multiple choice)
- A. Provide fault tolerance mechanism to enhance the robustness of virtual concatenation function
- B. Bandwidth is dynamically increased or decreased.
- C. Failed members are protected and restored
- D. Automatic discovery of new network elements and links
Answer: A,B,C
NEW QUESTION # 415
Which of the following options are common signal failure alarms? (Multiple choice)
- A. B2_SD
- B. R_LOF
- C. R_LOS
- D. B2_EXC
Answer: B,C,D
NEW QUESTION # 416
Which of the following statements about basic LCAS functionality are correct? (Multiple choice).
- A. New network elements and links are automatically discovered.
- B. Provides a fault-tolerant mechanism to enhance the robustness of the virtual cascading function. .
- C. Bandwidth dynamically increases or decreases. .
- D. Failed members are protected and restored. .
Answer: B,C,D
NEW QUESTION # 417
Which of the following is the electrical layer overhead of OTN? (Multiple choice)
- A. OPUk
- B. Och
- C. ODUk
- D. OTUR
Answer: A,C,D
NEW QUESTION # 418
The optical amplifier unit compensates for line losses and extends the transmission distance.
Connecting multiple optical amplifier units in cascade mode can extend the transmission distance of the system indefinitely.
- A. True
- B. False
Answer: B
NEW QUESTION # 419
Which of the following descriptions of self-healing networks are correct? (Multiple choice)
- A. The equipment of the self-healing grid must have strong cross-connection capabilities
- B. The time it takes for a self-healing network to restore services is very short, and users can hardly feel it.
- C. Building a self-healing network requires backup routing
- D. Self-healing networks can automatically restore services without human intervention
Answer: A,B,C,D
NEW QUESTION # 420
Which of the following statements regarding multiplexing partial remote False indication (MS-REI) is correct?
(1) B2 bytes indicate the transmission channel.
(2) The M1 byte represents the transmission channel
(3) THE MS-REl is sent from the receiver to the source.
(4) MS-REI is transmitted from the source to the receiver.
(5) Indicates the number of bit Falses detected by the receiver after receiving the MS signal.
- A. (2) (3) (5)
- B. ###
- C. ###
- D. ###
Answer: A
NEW QUESTION # 421
The value of the MFAS byte increases with the sequence number of the OTUk/ODUk base frame and includes a maximum of () base frames.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 422
EVPLAN form is mainly used to realize point-to-point and point-to-multipoint communications.
- A. False
- B. True
Answer: B
NEW QUESTION # 423
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