H31-321_V1.0-ENU Exam Dumps (V8.02) with 200 Practice Questions – Study Your HCIP-Optical Solution Architect V1.0 Certification Exam Thoroughly

Are you preparing for the Huawei HCIP-Optical Solution Architect V1.0 certification exam? It is designed for individuals aiming to become optical network presales engineers or professional Optical Solution Architects. It validates advanced technical expertise in designing and planning complex optical transmission and access networks. To help you prepare well, DumpsBase has introduced its latest H31-321_V1.0-ENU exam dumps (V8.02), a comprehensive preparation suite specifically engineered to help you overcome exam anxiety and achieve exceptional results. There are 200 practice questions, with verified answers, in V8.02. These Q&As are meticulously curated by industry experts, ensuring that every question aligns with the most recent Huawei standards and technical requirements. Learn DumpsBase’s H31-321_V1.0-ENU exam questions today. A combination of portable PDF dumps and interactive online testing engines to simulate the real exam environment, ensuring you pass the HCIP-Optical Solution Architect V1.0 exam with high scores.

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1. Latency of store-and-forward equipment is the difference between the time the first bit of a data frame enters the equipment and the time the first bit exits the equipment.

TRUE

FALSE

2. You can change the VC~12 numbering policy by configuring related parameters on the U2000.

TRUE

FALSE

3. Pointer justification is caused by asynchronous clocks on two interconnected NEs. When one NE reports a positive pointer justification event, the other NE reports a negative pointer justification event.

TRUE

FALSE

4. A 2M BER tester can be used for BER testing on electrical ports. To which of the following boards can a 2M BER tester be connected for BER testing on electrical ports?

D75S

D12S

1-Sep

D34S

5. Which of the following statements are True about J1 and C2 bytes on NG-SDH equipment?

For VC~4 services, a line board detects both J1 and C2 bytes.

For VC~4 services, a line board does not detect J1 or C2 bytes.

For VC~12 services, a line board detects both J1 and C2 bytes.

For VC~12 services, a line board does not detect J1 or C2 byte.

6. Which of the following indicates a negative All pointer justification?

Three bytes after H3

Three H3 bytes of AU-FTR

Three bytes before H3

None of the above

7. The cross-connection resources used by discrete services cannot be used to create other services. All discrete cross-connections must be deleted.

TRUE

FALSE

8. What path levels are available in an NG-SDH system?

VC~11

VC~12

VC~3

VC~4

VC~4-XC (X = 4, 8, 16, 64)

9. When you reseat an SDH or PDH service board on NG-SDH equipment, certain alarms are reported. The alarms are automatically cleared after the board is online.

Which are the typical alarms?

BUS_ERR

BD_NOT_INSTALLED

bd_status

COMM UN FAIL

10. Which of the following are true about tunnel services?

A tunnel is an ASON service path.

An ASON service and a traditional service can be converted to each other.

Tunnel levels include diamond, gold, silver, or copper.

You do not need to manually create or delete the lower order cross-connections between a line

board and a tributary board.

A tunnel cannot be optimized.

11. Which of the following is not the daily basic maintenance operation on the U2000?

Browsing the current alarms

Checking the communication between the U2000 and NEs

Querying the security logs of the U2000

Checking the disk space of the U2000 server

12. Which of the following are true about laser safety operations?

When installing or maintaining an optical interface board or optical fibers, do not look into the optical interface board or fiber connectors.

You need to disconnect the fiber jumper from the optical interface board of the peer NE when using an optical time domain reflectometer (OTDR).

Use protective caps to cover unused optical ports and optical connectors of fiber jumpers.

You can replace optical interface boards or optical modules during equipment-side maintenance.

13. All NEs of a subnet are unreachable to the U2000, but the communication between the other subnets and the U2000 is normal.

What are the possible causes of this phenomenon?

Incorrect fiber connections or fiber faults

Failure in the U2000

The IP address of the gateway NE is changed by mistake.

The SCC board of the NE that is at the border of the affected subnet is faulty.

The network size is too large, and ECC communication is beyond the processing capability of the network.

14. According to the extended SSM protocol, clock switching is performed firstly according to clock priorities, and secondly according to clock quality levels.

TRUE

FALSE

15. You need to specify the length of data frames before using a data analyzer to test throughput.

What is the length of a standard Ethernet frame?

64 bytes

128 bytes

1518 bytes

1544 bytes

16. An NE is frequently unreachable to the NMS.

Which of the following are possible causes?

Conflicted NE IDs or IP addresses

The network size is too large, and ECC communication is beyond the processing capability of the network.

On the network, multiple users are attempting to log in to the N

The cross-connect board is faulty.

The SCC board is faulty.

17. An N2SLQ16 board that is configured with AU3 services is faulty. If no spare N2SLQ16 board is available, the N1SLQ16 board can function as a substitute.

TRUE

FALSE

18. If equipment power is configured with 1+1 protection, you can replace the PIU board without cutting off the supply from the DC power distribution unit.

TRUE

FALSE

19. You can check the protection switching status of a network using the NMS.

Which of the following is false?

Query MSP attributes and protection switching status on the Main Topology.

To query MSP switching status, choose Configuration > Ring MS in the NE Explorer.

To query SNCP switching status, choose Configuration > SNCP Service Control in the NE Explorer.

To query TPS status, choose Configuration > TPS Protection in the NE Explorer.

20. Which of the following about ECC channels are true?

The establishment of an ECC route requires dual transmission of requests at the transmit station.

You can select route establishment mode on the transmit station.

An ECC route is established on the shortest path.

An ECC route is a geographical distance.

An ECC route is a logical distance and refers to the total number of hops between stations.

21. Which of the following operations are required for monthly basic maintenance on the U2000?

Checking for the time of the U2000 server

Backing up system files

Changing the password for a current user

Checking operating system logs

22. Which of the following functions, when enabled, allows the transmitting laser of an optical port to be automatically shut down when the IN port fails to receive signals?

LCAS

ALS

ALC

LFT

23. To test bidirectional performance data, the two ports of a data analyzer must be set to simultaneously receiving and transmitting data. Otherwise, you cannot obtain the required data.

TRUE

FALSE

24. Which of the following are true about the NE ID of an ASON NE?

Each NE ID must be unique in an ASON domain.

The NE ID and IP address of an NE must be in different network segments.

NE IDs must be set before the ASON feature is enabled. After the NE ID of an NE is configured, the NE will not warm reset.

NE IDs, NE IDs, and NE IP addresses are independent from each other.

NE IDs and IP addresses must be in the same format. An NE ID cannot be 0.0.0.0,1.2.3.4, or 255.255.255.255.

25. What may cause the HP_LOM alarm?

Services are not configured on upstream NEs.

The service level is set inconsistently at both ends.

The C2 byte to be transmitted on the terminal NE is 0x00, and the pass-through NEs are set to pass through the overhead.

The board (for example, a cross-connect board) is faulty, resulting in loss of the H4 byte or incorrect H4 byte.

26. Which of the following may cause generation of discrete services in an NG-SDH system?

Trail query conditions are not met. For example, the fiber connections created on the NMS are inconsistent with the actual fiber connections.

Trail query restrictions exist. For example, among the multiple sources and sinks of a VC~4 service trail, some are outbound optical ports, and the others are non-outbound optical or electrical ports.

Cross-connection configurations are incomplete or incorrect.

Outgoing services exist.

The service trails created in an end-to-end manner is not activated on the NM

27. Which of the following are true about an SDH network?

The NMS communicates with a gateway NE using the OSPF protocol.

NEs communicate with each other over ECCs.

ECC communication is implemented by the D byte.

The maximum DCC rate is 192 Kbit/s.

By default, Huawei OptiX equipment uses D1 to D3 bytes for DCC communication. After ASON is enabled, the D4 to D12 bytes can function as in band control channels to transmit control information for the control plane.

28. What is the purpose of setting SNCP holdoff time?

An SNCP switchover takes a longer time than an MSP switchover.

SNCP switching is reliable and efficient.

To prevent a second SNCP switching

None of the above

29. On NG-SDH equipment, when a cross-connect board that is configured with equipment-level protection (such as TPS, BPS, PPS, and DLAG) is replaced, the services carried by the board will not be interrupted.

TRUE

FALSE

30. If the SRV indicator of a board is not red in a networkwide fiber connection test, the board can receive optical signals. When some optical ports are not used on a board with multiple optical ports, the SRV indicator is steady red. You need to use the NMS to check whether the board works properly.

TRUE

FALSE

31. Which of the following are true about TU pointer justification?

The justification step of the TU pointer is three bytes.

When VC~12 and TU-12 have no frequency or phase difference, the position of the V5 byte is 0.

The value of the TU pointer is in the last 10 bits of the VI and V2 bytes.

When VI and V2 are all “1”s, the local NE reports the TU-AIS alarm.

32. In the environment defined by ETSI EN 300 019-2-3 class 3.2, how often should air filters be cleaned?

Every half a month

Monthly

Bimonthly

Quarterly

33. NG-SDH equipment supports MS-shared protection.

Which of the following are false about timeslot mapping between the working path and protection path?

Working path 2: 17#VC~4-20#VC~4; Protection path 2: 49#VC~4-52#VC~4

Working path 1: 1#VC~4-11#VC~4; Protection path 1: 33#VC~4-43#VC~4

Working path 2: 4#VC~4-7#VC~4; Protection path 2: 9#VC~4-12#VC~4

Working path 1: 1#VC~4-4#VC~4; Protection path 1: 5#VC~4-8#VC~4

34. NG-SDH equipment supports -48 V and -60 V power inputs. For OSN 3500, you can set the monitoring range of power input voltage by setting the power jumpers of N3GSCC. For -48V power input, you need to remove the caps of jumpers J30 and J31.

TRUE

FALSE

35. On a network where MSP rings and SNCP rings share fiber resources, if Assigned by VC~4 is selected, you need to set holdoff time for SNCP services.

TRUE

FALSE

36. During normal operation of a network, the conditions that trigger a protection switching are generated on the working channel but services fail to be automatically switched to the protection channel. Services are interrupted, but the MS protocol status is normal on the NMS.

What are the possible causes?

Incorrect fiber connections between boards

The cross-connect or line board is faulty.

The configuration data on the NE and those on the NMS are inconsistent. As a result, the parameters of MSP nodes do not take effect.

Equipment power failure

The SCC board is faulty.

37. What are the common causes for pointer justification?

Clock sources or clock source levels are configured incorrectly. As a result, there are two clock sources on one network or a timing loop occurs. AU and TU pointers will adjust.

The power supply for the subrack is faulty, resulting in abnormal operation of clock boards. AU and TU pointers will adjust.

The cross-connect board is faulty, resulting in degraded clock quality. AU and TU pointers will adjust.

The tributary board is faulty, resulting in justification of both AU and TU pointers.

38. What do typical methods of testing Ethernet performance on NG-SDH equipment include?

Equipment performance test

Network performance test

System acceptance test

User-defined test

39. By default, which of the following alarms will trigger AIS insertion on OptiX NG-SDH equipment?

R_OOF

LPJJNEQ

HPJJNEQ

HP_LOM

40. Which of the following about the SSM protocol are true?

After the SSM protocol is disabled, the clock network can be unidirectional but cannot adopt a ring topology.

After the standard SSM protocol is enabled, the clock network can be bidirectional but cannot adopt a ring topology.

After the extended SSM protocol is enabled, the clock network can be bidirectional and adopt a ring topology, which can be intersecting or tangent with other networks.

The SSM protocol has little to do with clock networks.

41. What are the characteristics of a trail?

A trail is a end-to-end connection.

A trail has a source and a sink.

A trail may pass through many intermediate nodes.

A trail must be bidirectional.

42. Which of the following bytes cannot be processed in pass-through mode on an ADM site using OptiX NG-SDH equipment?

K1

K2

A1

A2

43. What is the maximum number of NEs traversed by a data forwarding path in Huawei ECC communication?

16

32

63

128

44. Two SNCP rings are intersected.

Which of the following statements is true about inter-ring service configuration?

Configure one unidirectional SNCP service pair on each intersecting node.

Configure two unidirectional SNCP service pairs on each intersecting node.

Configure four unidirectional SNCP service pairs on each intersecting node.

Do not configure any SNCP protection group on each intersecting node.

45. Alarm signals on the PDH ports working at different rates differ.

Which of the following are true?

The T_ALOS alarm is reported when external signals are lost on an El electrical interface board.

The P_LOS alarm is reported when external signals are lost on an E3 or E4 electrical interface board.

The DOWN_E1_AIS is reported when an El electrical interface board detects all “1”s in the downstream signal stream.

The UP_E1_AIS is reported when an El electrical interface board detects all “1”s in the upstream

signal stream.

The P_AIS is reported when an E3 electrical interface board detects all “1”s in signal streams.

46. When optical fibers are incorrectly connected, lots of pointer justification events will occur.

Which of the following methods can be used to further locate the fault?

Disconnect fibers and shut down lasers.

Insert the MS_RDI alarm on the NM

Observe pointer justification events.

Change the J1 byte traced by a higher order path on the NM

47. What tools are required for board replacement during equipment-side maintenance?

ESD wrist strap or ESD gloves

Shielding bag

Screwdriver

U2000

Optical power meter

48. Two MSP rings are intersected.

Which of the following statements is false?

If SNCP works in revertive mode on the tangent node, two switchovers may occur after a fiber cut.

Inter-ring services are protected even if an intersecting node is not configured with unidirectional cross-connections.

Generally, a tangent node is configured with two SNCP protection groups, two unidirectional cross- connections, and the other intersecting node is configured with two bidirectional cross-connections.

49. When preparing for engineering information, you need to check networking information, such as the network diagram, network protection type, NE IP addresses, NE IDs, NE name allocation table, board information, fiber and cable connections, service routes and timeslot allocation, clock tracing diagram, and orderwire diagram.

TRUE

FALSE

50. Which of the following statements is false about pre-commissioning check?

Verify that the equipment is properly grounded.

An AUX board provides multiple RJ45 ports that receive same signals. Wrong port connections do not affect the equipment or boards.

On an AUX board, LAM PI is the cabinet alarm indicator output port and LAMP2 is the cabinet alarm indicator cascading input port. Verify that the ports are connected correctly, to prevent short circuits.

Verify that the NMS is successfully installed.

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