Free 2022 Update H35-211_V2.5-ENU HCIP-Access V2.5 Real Questions

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Page 1 of 8

1. ONU cannot be automatically discovered, what are the possible causes of failure? (Multiple choice)

The actual distance from the ONU to the OLT is outside the range of the distance compensation distance configured by the OL

The PON port is faulty.

The ONU is not powered on.

There is a rogue ONU, which interferes with other ONUs and cannot work normally.

2. OLT has a powerful rogue ONU control function, and can detect and isolate rogue ONUs in any scenario.

True

False

3. During the evolution of EPON to 10gEPON, WDM wavelength division modules are added at the central office to achieve smooth transition and Odn coexist.

True

False

4. In the Huawei U200 management system, when adding access network elements, you can only add them one by one.

True

False

5. When the ONT fails or the hardware is upgraded, the ONT needs to be replaced, and the ONT service needs to be removed on the OLT, and then the ONT terminal is removed, and the new ONT service is registered and configured.

Ture

False

6. If multiple SIP messages belong to the same call of the same SIP user, which field in these messages has the same value?

Sr art-line

via

Cseq

Call-ID

7. EA 5800/MA 5800 only supports IGMP-PROXY, do not support Igmp-snoop in

True

False

8. What is the downlink wavelength in the 10GGPON system?

1310nm

1577nm

1270mm

1490nm

9. In esight ont zero configuration deployment, when performing incremental configuration of an OLT, do not preset the OLT.

True

False

10. The Max-Forwards field can be used in the S1P message to solve the loop QUESTION NO: to avoid endless message forwarding.

Ture

False

Page 2 of 8

11. In the process of GPON ONU SIP voice service provisioning, what are the options for data planning in advance? (Multiple choice)

SIP server IP

Service VLAN

GPON port

OLT upstream port

12. Which statement is wrong about DHCP option 82? (Multiple choice)

The DHCP Option 82 port configuration on the OLT is enable by default

When the DHCP client sends a request message to the DHCP server, if it needs to go through the DHCP relay, the DCP relay will add Option 82 to the request message.

DHCP Option 82 switches are divided into four levels: global level, port level, service virtual port level and LA level. Only when all the switches are turned on will the system add ption82 information to the upstream DCP packets.

The DHCP client sends the request message in the form of unicast during initialization.

13. OLT equipment supports the use of authority templates to control the programs that multicast users can watch.

True

False

14. In the FTTH VoIP service configuration, the status of the MG interface fails. Which of the following reasons is impossible?

Parameter configuration error

Downstream port failure

Upstream port failure

Network link failure

15. PPPoE dial-up emulation means that the access device simulates the user terminal to initiate a PPPoE dial-up process, and checks the network connectivity between the access device and the Radius server by analyzing the PPPoE dial-up simulation results.

True

False

16. Which of the following options can be used to carry the SIP protocol? (Multiple choice)

RTCP

TLS

SCTP

TCP

17. For SIART type VLANs, by default, the same VLAN service virtual ports cannot directly communicate with each other at Layer 2.

True

False

18. The SNMPv2c version can encrypt user passwords.

True

False

19. In Huawei's GPON system, which of the following methods are used to deal with long-light rogue ONU? (Multiple choice)

Investigation

Dropped

Isolation

Detection

20. Among the following options, which products are the information access points in the POL ODN network? (Multiple choice)

FDT

ATB

FMC

CTB

Page 3 of 8

21. Huawei network management U2000 realizes the configuration of the voice service, and the voice configuration is issued through?

Value-added service template

SNMP template

Business template

Route template

22. What protocol does Huawei network management U2000 use to realize the management of network elements OLT and ONu?

IGMP

SNMP

oMcI

FTP

23. The downstream wavelengths in the 10G GPON system is _____.

1310nm

1490nm

1270nm

1577nm

24. The complete SIP message interaction process will include multiple request and response messages. A field can be used in the header field of the SIP message to describe the specific request corresponding to the current response message. This field is:

Csea

CaLL-ID

First line

Message body

25. When the invitation message sent by user A reaches user B after passing through servers C, D, and E, the server address recorded in the VIA field in the message received by user B from top to bottom is:

C->D->E

E->C->D

E->D->C

C->E->D

26. When the coverage radius of LT is ___, the overall cost is optimal.

5km

20km.

10km

15km

27. Under the H.248 protocol, if the signaling IP and media IP are both 10.1.1.100/8, and the voice gateway is 10.1.1.1, when configuring the voIP service, which of the following command is wrong?

Use the command ip address media 10.1.1.100 10.1.1.1 to configure the media IP in voip mode

Use the reset cold start command under the voice interface to make the interface attribute configuration effective

Use the if-h248 attributei command to configure interface attributes under the voice interface

Use the command ip address signaling 10.1.1.100 10.1.1.1 in voip mode to configure the signaling IP

28. Checked that the OLTP ON port indicator is not green on the U2000 network management, indicating that the PON port is faulty

True

False

29. In the FTTH scenario, the H.248 protocol is used to deploy VolP services. Which of the following options belong to MG equipment?

OLT

ONT

Aggregation switch

BRAS

30. Traffic suppression on the uplink port of MA5680T suppresses multicast only for unknown multicast traffic.

True

False

Page 4 of 8

31. When the OLT receives a power failure message from the ONT, which of the following alarms will be generated by the system?

Dgi

Sfi

sdi

LOFi

32. Which of the following description of GPON Type C dual-homing protection is correct?

Simple networking, simple OLT/ONU management.

The two PON lines of one ONU and two OLTs are in the active and standby state

Does not support branch fiber protection.

OLT failure will cause business interruption.

33. Single-talk phenomenon occurs during a voice call, the possible reason is? (Multiple choice)

IP bearer network router ACL configuration issues

The signaling does not reach the voice server

ARP proxy is not enabled on the OLT?

34. Which of the following statements about the PITP protocol is wrong?

PITP P mode can also be called PPOE+ mode

The purpose of OPIT feature is to provide the upper-layer authentication server with the physical location information of the access user. After the BRAS device obtains the user access location information, it can realize the binding authentication of the user account and the access location information, avoiding the user account Misappropriation and roaming

In PITP VI mode, the user’s physical location information will be added to the P PoE message sent by the user side to cooperate with the upper server for user authentication

PITP protocol includes PITP Pi mode and PITP V mode

35. When Type C dual-homing protection linkage uplink detecting, if the OLT or OLT uplink failure, Type C dual-homing protection can be switched to another OLT.

Ture

False

36. The optical splitter can be added to eSight to show the connection relationship of the PON more precisely. Which of the following statements about the optical splitter is correct? (Multiple choice)

If the connection relationship between the optical splitter and the OLT and ONU equipment changes, eSight cannot detect it automatically, and you need to maintain it manually.

The optical splitter can be added manually and the connection relationship with the OLT and ONU equipment can be established.

Using the auto-discovery topology function of eSight, the optical splitter and its splitting ratio can be found.

Since the optical splitter is a passive device, eSight cannot monitor it.

37. The double-rate three-color marking (TrTCM) algorithm can guarantee the basic bandwidth (CIR) of users, and allow users to obtain additional bandwidth services (PIR) when the network is idle, improving the utilization of network resources.

TRUE

FALSE

38. The correct multicast MAC address corresponding to the multicast IP address 227.120.1.32 is:

01-00-5e-78-01-32

01-00-5e-14-01-20

01-00-5e-78-01-20

01-00-5e-14-01-32

39. Use OTDR to locate the position of abnormal attenuation in the optical path. After the OTDR connection is to be detected the line, which of the following parameters can be set? (Multiple Choice)

Set the measurement range

Set the wavelength

Set the mode

Set the pulse width

40. OLT can support directly copying user message priority as the priority of up-forwarding messages, and supports direct local configuration.

Ture

False

Page 5 of 8

41. The LACP aggregation and docking device determines the port that carries the service according to the LACP priority of the active end port. If there are multiple ports with the same LACP priority, which of the following statement is correct?

When the LACP priority of the port is the same, the active port is determined according to the port ID

When the LACP priority of the port is the same, the active port is determined according to the port MAC

When the LACP priority of the port is the same, the active port is randomly selected

When the LACP priority of the port is the same, the active port is determined according to the port IP

42. The network management U2000 adds a line template to realize the mapping of user service flow to GEM PORT. The mapping mode includes: (Multiple Choice)

MAC

PORT

VLAN

802.IP

43. What are the main solutions to MAC address spoofing? (Multiple choice)

Replace user terminal

Automatic MAC address binding

Manually configure a static MAC address

Limit the number of users' MAC address learning

44. Under the OLT+MDU network, configure the ig-snooping mode on the MDU. If a multicast user under the MDU leaves the multicast group (the MDU has multiple multicast users online at the same time), which of the following statements are correct?

When fast leave based on MAC address is enabled for MDU multicast users on the OLT, other users under the MDU are not affected in any way.

When fast leave based on MAC address is enabled for MDU multicast users on the OLT, other users under the MDU cannot watch multicast programs normally.

When fast leave based on MAC address is not enabled for DU multicast users on the OLT, other users under the MDU will not be affected.

None of the above

45. Which of the following command is used to stop multicast emulation?

undo igmp simulate service-port x

igmp simulate service-port x delete

igmp static-join service-port x delete

undo igmp static-join service-port x

46. The SIP protocol is an application layer protocol. Which of the following cannot be used to carry the SIP protocol?

TCP

SCTP

RTCP

TLS

47. Regarding the terminal selection principle, which of the following statements, which is correct? (Multiple choice)

Meet special needs

Need to consider cost

No need to comply with project requirements

Select the terminal type according to the network construction mode

48. In order to improve link reliability, the OLT device is configured as a port aggregation group through two uplink ports 0/19/0 and 0/20/0. Each member port in the aggregation group distributes packets according to the source MAC address, and the working mode is LACP aggregation, which of the following configurations is correct?

Huawei (config) #link-aggregation 0/19 0 0/20 0 egress-ingress work mode lacp-static

Huawei (contig) #link-aggregation 0/19 0 0/20 0 egress work mode lacp-static

Huawei (config) #link-aggregation 0/19 0 0/20 0 ingress work mode lacp-static

Huawei (config) #link-aggregation 0/19 0 0/20 0 egress-ingress work mode lacp

49. Under IGMP snooping, two users under the OLT order the same program, and olt sends two join messages to the multicast router.

Ture

False

50. OLT uplink can improve bandwidth and operability through link aggregation. Which of the following modes are currently supported by OLT uplink aggregation? (Multiple choice)

Dynamic

Manual

Static

Automatic

Page 6 of 8

51. In the data planning of the POL campus network, which of the following descriptions about VLAN planning are reasonable? (Multiple choice)

Divide VLAN range according to geographic region

Divide VLAN range according to personnel structure

Divide VLAN range according to business function

Divide VLAN range according to logical area

52. A GPON Type C dual-homing protection is deployed for a power access service, and the status of the protection group and the uplink Ethernet port is set on the OLT. When the status of the Ethernet port associated with the protection group on the OLT becomes down, which of the following description is incorrect?

The status of the work port on the ONU side becomes standby

OLT general ONU uplink status changes

After the switch, the service on the ONU is sent to the OLT through the protect port, that is, the service message is transmitted on the protect link.

ONU detects link failure and triggers protection switching

53. When it is detected that the CPU of the OLT main control board continues to rise, the following possible reasons are: (Multiple Choice)

User illegally logged in

Network loop

Cyber attacks

Rogue ONU

54. The following statement about defense against MAC Spoofing, which is wrong?

After the anti-MAC Spoofing function is enabled, the system will automatically realize the dynamic setting of AC address and service flow.

MAC Anti-MAC Spoofing feature and WAC, S+C, PPPOE SMAC feature VLA are mutual exclusion

After the Anti-MAC Spoofing function is enabled, for IPE users with fixed IP, users need to be statically configured

Turn off the Anti-MAC Spoofing function. The only action involved is to delete the fixed table entry, which does not affect the user's business application, but the business forwarding will be interrupted.

55. There are many protection methods for OLT dual uplinks. Which of the following technologies can be used as OLT dual uplinks? (Multiple choice)

Smart link&monitor link

Main control board protection

Link Aggregation

Ethernet Protection Group

56. The protection scope of GP ON Type B dual-homing protection includes: (Multiple Choice)

Main and standby OLT

Main and standby backbone fiber

OLT's main and standby PON ports

Main and standby branch fiber

57. Which of the following protocol is used to manage multicast membership?

MSDP

PIM-SM

IGMP

PIM-DM

58. FEC is enabled by default in the downstream direction of 10G GPON, without occupying downstream bandwidth.

True

False

59. XGEN frame encapsulation data is used in the 10GGPON system, and PORT ID is defined as () bit in the XGEN header.

60. Unlike U2000, esight network management cannot view the ONU ranging results, but it is suitable for viewing the basic information of ONUs, such as luminous power.

True

False

Page 7 of 8

61. When adding new network element to the U2000, it has not been added. What are the possible reasons? (Multiple choice)

The network element settings and the IP address of the gateway are not in the same network segment

The SNMP parameters on the U2000 are inconsistent with those configured on the network element

The SNMP versions on the U2000 are inconsistent with the version configured on the network element

The U2000 cannot be connected to the network element device

62. In the 10G GPON protocol stack, what is the smallest package unit?

GTC

XGEM

TCONT

GEM

63. Which of the following conditions are met to trigger automatic protection switching of GP ON Type B single-homing protection? (Multiple choice)

Branch fiber break

Deterioration of backbone optical fiber line quality

Trunk fiber break

OLT main POM port failure

64. Which of the following statement about Anti-MAC Spoofing is wrong?

MAC Anti-MAC Spoofing feature and WAC, S+C, PPPOE SMAC feature VLA are mutual exclusion

After the Anti-MAC Spoofing function is enabled, the system will automatically realize the dynamic binding between the AC address and the service flow

After the Anti-MAC Spoofing function is enabled, for I PoE users who use a fixed IP, users need to be statically configured

Turn off the Anti-MAC Spoofing function, the only action involved is to remove the specified entries, which will not affect the user's business applications, but the business forwarding will be interrupted.

65. The SIP protocol is an asymmetric protocol, and the actions of the SIP phone all require the SIP server to issue control instructions.

TRUE

FALSE

66. View the protection configuration on the OLT side as follows.

huawei （ config ） #protect-group 0 protect-target gp on-uni-port work mode time delay

huawei （ protect-group-0 ） #protect-group member port 0/5/0role work

huawei （ protect-group-0 ） #protect-group member port 0/5/1role protect

huawei （ protect-group-0 ） #protect-group enable

According to the above information, which of the following statement is correct? (Multiple choice)

When port 0/5/0 fails, the system can automatically switch to port 0/5/1 to continue accessing services

After creating a protection group, the default status of the protection group is disabled, and you need to command protect-group enab1e to enable the protection group

The member ports of this protection type must be the same as the ports on the GPON board

GPON Type B single-homing protection is configured

67. Enable DHCP Option 82 switch in global and VLAN service template mode. Ports and service virtual ports allow user-side DHCP messages to carry ption82 information. When the access device receives user-side DHCP option 82 messages, what is processed strategy?

The access device strips the ption82 information carried in the DHCP message on the user side and adds the local user information.

The access device directly forwards the DHCP message on the user side without any processing.

The access device strips and forwards the Option 82 information of the DHCP message on the user side.

The access device discards the DHCP message on the user side.

68. The number of users under the OLT can also decide whether the VLAN is a single-layer or double-layer VLAN. When the number of users is small, a single-layer VLAN can be used. When the required VLAN to distinguish the number of services and users is greater than ( ), a double-layer LAN must be used.

69. Configure the following commands on the OLT,

huawei （ config ） #lacp priority

[integer<U><0, 32767>linteger<U>< 0, 65535>}: 2048

(Port<K>Isystem<K>}: system

Based on the above configuration, which of the following statements is correct?

A. After configuration, the system priority of the device is higher than the default value

A. If the priority of the peer system is also configured as 2048, compare the port priority to determine the active end

B. Set the LACP priority of the port to 2048

C. The range of system priority is 0-32767

70. Deploying Ethernet port protection groups in the upstream direction of the OLT can improve uplink reliability and uplink bandwidth.

True

False

Page 8 of 8

71. In GPON Type C single-homing and dual-homing protection, which of the following descriptions is correct? (Multiple choice)

Redundant protection is provided for OLT (dual-homing scenario), ONU PON port, backbone fiber, optical splitter and distribution fiber.

Type C protection has higher reliability than Type B protection

For OLT Type C dual-homing scenarios, when a component fails, it can automatically switch to another link.

After enabling the protection group recovery switch, when the status of the working members in the protection group returns to normal, after the recovery waiting time expires, the protection group will automatically switch over and continue to carry services by the working members.

72. Compared with Type C dual-homing protection, which of the following description about Type C single-homing protection is correct? (Multiple choice)

Protect important users' services for the protection of enterprise private line access services and base station private line access services.

OLT failure will cause business interruption.

When the OLT or OLT uplink fails, it can be switched to another OLT

Simple network and simple OLT/ONU management

73. In esight's OnT zero-configuration deployment, do not preset the OLT when performing incremental configuration to an OLT.

Ture

False

74. After the DHCP simulation is started, it will automatically stop when the system default timeout period is reached, and the simulation results will be deleted at the same time.

True

False

75. In the value-added service general template of the ONT configured on the U2000, the WAN port capacity of WAN port-by-port management is enabled by default, and needs to be changed to disable.

True

False

76. When the ONU is replaced in the eSight system, which of the following options can be used to reselect the ONU?

ONU SN

ONU ID

ONU MAC

ONU IP

77. Which of the following statement about PIT P protocol is wrong?

PIT P protocol includes PIT PP mode and PITP V mode

The purpose of the PIT P feature is to provide the upper-layer authentication server with the physical location information of the access user. After the BRAS device obtains the user access location information, it can realize the user account and access location

Information binding and authentication is to avoid theft and roaming of user accounts

In PITP V mode, the user’s physical location information will be added to the PPPOE message sent by the user side to cooperate with the upper server for user authentication

PITP P mode can also be called PPOE+ mode

78. If there is a rogue onu under the OLTP ON port and the ONT is online, it will cause some other ONT or all ONT under the same-PON to go offline or frequently go online and offline.

True

False

79. The maximum splitting ratio supported by 10GEPON is?

1: 256 (laboratory)

1:32

1: 128

1: 64