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H31-311-ENU Dumps Full Questions - Exam Study Guide
NEW QUESTION 73
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. 35G
- B. 58.75G
- C. 155G
- D. 80G
Answer: C
NEW QUESTION 74
SDH signals must be scrambled before being transmitted over optical fibers.
Which of the following bytes are not scrambled? (Multiple Choice)
- A. A2
- B. J0
- C. A1
- D. J1
Answer: A,B,C
NEW QUESTION 75
Which of the following is not the advantage of WDM?
- A. Compatible with ail optical switching networks in the future
- B. Ultra-large capacity and transparent data transmission
- C. Easy to upgrade and maximizing the protection for existing investments
- D. Completely substituting for SDH devices
Answer: D
NEW QUESTION 76
An optical amplifier unit compensates for line loss and extends transmission distance. Connecting multiple optical amplifier units in cascading mode can infinitely extend transmission distance of a system.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 77
On a Layer 2 switching device, if the Ethernet port is an Access port, the port can receive only the Ethernet frames without VLAN tags or Ethernet frames with the same VLAN ID as the default VLAN ID of the port.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 78
During the backup and restoration of the network configuration data of the U2000 using scripts, you can change the directory for saving the exported files.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 79
Which of the following is not a condition for triggering multiplex section protection (MSP)?
- A. R-LOF is detected.
- B. AU-AIS is detected.
- C. The MS-AIS signal is detected.
- D. R-LOS is detected.
Answer: B
NEW QUESTION 80
On the OSN series transport devices, Ethernet ports cannot access tagged frames and untagged frames at the same time.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 81
After the U2000 delivers configuration data to an NE, if the verification fails on the SCC board, the NE enters the installation state.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 82
Which of the following statements about an MSP ring are correct? (Multiple Choice)
- A. When creating a protection subnet, select SDH NEs only. Do not select REG or WDM NEs.
- B. "Assigned by VC4" means that different VC4s are assigned to different protection subnets to achieve MSP only in some channels.
- C. The number of nodes on an MSP ring cannot exceed 16.
- D. When multiple protection subnets occupy the same port on the same board, you must select "Resource Sharing".
Answer: A,B,C,D
NEW QUESTION 83
Both PDH and SDH have globally unified standards.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 84
Which of the following ITLI-T recommendations defines the OTN frame structure?
- A. G.975
- B. G.709
- C. G.652
- D. G.694
Answer: B
NEW QUESTION 85
Which of the following are communication quality alarms? (Multiple Choice)
- A. No login of an NE user
- B. Optical port loopback
- C. Loss of optical signals
- D. NE communication interruption
Answer: C,D
NEW QUESTION 86
The STAT indicator of an SDH board is blinking red, on for 100 ms and off for 100 ms.
Which of the following is the meaning of the indicator status?
- A. Normal operating
- B. Hardware mismatch
- C. Hardware fault
- D. No power supply input
Answer: B
NEW QUESTION 87
Which of the following are optical-layer trails? (Multiple Choice)
- A. OCh
- B. OTS
- C. OMS
- D. OSC
Answer: A,B,C,D
NEW QUESTION 88
Which of the following device domains can be managed by the U2000? (Multiple Choice)
- A. Access device
- B. Data communication device
- C. Transport device
- D. Wireless device
Answer: A,B,C,D
NEW QUESTION 89
Which of the following bytes can be used for the orderwire phone between two REG devices?
- A. E1
- B. E1 and E2
- C. None of the above
- D. E2
Answer: A
NEW QUESTION 90
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