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HCIA-Access V2.5 Exam Question and Answers

HCIA-Access V2.5 Exam

Last Update May 21, 2024
Total Questions : 299

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Questions 1

When performing FTTx networking and data planning, user security needs to be considered. Which of the following measures can prevent attacks between users?

Options:

A.  

Use anti-mac to solve

B.  

Defense IP spoofing

C.  

Layer 2 isolation and controlled mutual access of users

D.  

Use port physical information to identify users

Discussion 0
Questions 2

OneVLANWhat kind of domain can it be regarded as?

Options:

A.  

Conflict domain

B.  

Broadcast domain

C.  

Management domain

D.  

Physical area

Discussion 0
Questions 3

Is the following description correct? Version rollback generally includes three steps: 1. Load the original version of the package file; 2. Load the original version database backed up before the upgrade; 3. Reset the system.

Options:

A.  

True

B.  

False

Discussion 0
Questions 4

Which of the following information is the information that Solaris environment variables can provide?

Options:

A.  

Path

B.  

Default editor

C.  

Shell used

D.  

Default route

Discussion 0
Questions 5

Regarding super vlan, which of the following statements are correct?

Options:

A.  

Super VLAN aggregates multiple Sub VLANs

B.  

Super VLAN corresponds to a routing interface

C.  

Sub VLAN uses Super VLAN together

D.  

The main purpose of Super VLAN is to save IP addresses.

Discussion 0
Questions 6

By default, how many multicast programs can each multicast user under MA5680T watch at the same time?

Options:

A.  

2

B.  

4

C.  

8

D.  

16

Discussion 0
Questions 7

Regarding the UA5000 IPMB single board, which one of the following descriptions is wrong?

Options:

A.  

IPMB is an IP service processing board, used to converge and process broadband services

B.  

8 GE optical ports can be provided as uplink ports

C.  

Forward PVMB's VoIP service, and realize IP uplink through FE/GE electrical port or GE optical port.

D.  

Support main/standby switchover

Discussion 0
Questions 8

In UA5000, which of the following boards can provide 32 ADSL2+ interfaces and 32 POTS interfaces at the same time?

Options:

A.  

A32

B.  

ADRB

C.  

CSRB

D.  

ADRI

Discussion 0
Questions 9

Which of the following is the correct configuration process for EPON ONT to go online automatically?

Options:

A.  

Configure ONT—>Configure EPON UNI port—>Configure optical port of EPON UNI port—>Confirm the automatically discovered EPON ONT

B.  

Configure EPON UNI port—>Configure ONT—>Configure the optical port of EPON UNI port—>Confirm the automatically discovered EPON ONT

C.  

Configure EPON UNI port—>Configure the optical port of EPON UNI port—>Configure ONT—>Confirm the automatically discovered EPON ONT

D.  

Configure ONT—>Configure the optical port of the EPON UNI port—>Configure the EPON UNI port—>Confirm the auto-discovered EPON ONT

Discussion 0
Questions 10

ODN link total loss includes which of the following aspects?

Options:

A.  

Splitter loss

B.  

Splicing and cold splicing loss

C.  

Connector, adapter (flange) loss

D.  

Optical fiber transmission loss

Discussion 0
Questions 11

Is the following description correct? The link layer defines electrical and mechanical processes and functions to activate, maintain, and remove lines when the systems at both ends are connected.

Options:

A.  

True

B.  

False

Discussion 0
Questions 12

Which is the default read community and write community of SNMP V2?

Options:

A.  

read,write

B.  

public,private

C.  

pub,pri

D.  

common, secret

Discussion 0
Questions 13

Is the following description correct? When classifying the acceptance test items, the basic package is used to ensure the normal operation of the basic services and functions of the equipment and the network, and only simple or cheap instruments are needed to satisfy the acceptance test items.

Options:

A.  

True

B.  

False

Discussion 0
Questions 14

Among the access technologies of the access network, which of the following access methods can provide the largest access bandwidth?

Options:

A.  

ADSL

B.  

ADSL 2+

C.  

VDSL

D.  

GPON

Discussion 0
Questions 15

Which of the following are correct for GPON product business specifications?

Options:

A.  

MA5680T each board can provide 4-8 GPON ports, which can support 1:64 split ratio

B.  

The fiber length of the PON port must be within 20KM

C.  

SCUL supports optical and copper integrated access

D.  

HG8245 supports 256 tconts

Discussion 0
Questions 16

In the H.248 protocol, the terminal can be programmed to detect events. Once these events are detected, the MG will send a report to the MGC or the MG will take corresponding actions.

Options:

A.  

Modify

B.  

ServiceChange

C.  

Notify

D.  

AuditCapabilities

Discussion 0
Questions 17

IPMB is the broadband control board of UA5000. What are its main functions?

Options:

A.  

Used to converge and process broadband services (ADSL, VDSL, SHDSL, LAN)

B.  

Forward the VoIP service of the PVM single board, and realize the IP uplink through the FE or GE interface.

C.  

Provide broadband switching resources, have dual-system hot backup function, and support active/standby switchover.

D.  

Supports multicast services and can provide dedicated multicast channels.

Discussion 0
Questions 18

Is the following description correct? The MA5600T event level can be divided into four levels: critical, major, minor, and warning.

Options:

A.  

True

B.  

False

Discussion 0
Questions 19

Which of the following are the methods and ideas for locating abnormal XDSL dial-up faults?

Options:

A.  

Check the ATM package format of MODEM

B.  

Confirm whether the MODEM configuration is correct

C.  

Query the traffic of the xDSL port to determine whether there is normal business traffic with the terminal

D.  

Confirm whether the gateway can be pinged from the client

Discussion 0
Questions 20

Which method does BTV service use to send messages in the network?

Options:

A.  

Broadcast

B.  

Multicast

C.  

Unicast

Discussion 0
Questions 21

What type of optical module does Huawei GPON network mainly use?

Options:

A.  

CLASS A

B.  

CLASS B+

C.  

CLASS B

D.  

CLASS C

Discussion 0
Questions 22

In the template mode of MA5680T, where is the configuration of tcont and gemport integrated?

Options:

A.  

ont-srvprofile

B.  

ont-lineprofile

C.  

ont-profile

D.  

dba-profile

Discussion 0
Questions 23

Which of the following descriptions about PPPoE is incorrect?

Options:

A.  

PADT can be issued by the PC or BRAS at any time during the discovery phase to terminate the PPPoE dialogue

B.  

The destination address of PADI is the broadcast address 0xffffffff, and the source address is the Ethernet address of the host

C.  

The entire discovery phase of PPPoE includes PADI, PADO, PADR, PADS, PADT

D.  

SESSION-ID identifies the value of a PPPOE session

Discussion 0
Questions 24

MA5600T checks whether the currently running single board software version meets the requirements for on-site deployment. Which command is used?

Options:

A.  

display language

B.  

display board

C.  

display version

D.  

All of the above

Discussion 0
Questions 25

Is the following description correct? The simplified method of MA5600T/MA5680T GPON Internet service is optimized for the excessive number of templates and complicated configuration in the template mode, reducing user configuration workload and subsequent maintenance costs. The simplified mode currently only supports GPON FTTH scenarios. For newly-built GPON FTTH scenarios and scenarios that do not require high QoS, the simplified mode can be used for service configuration.

Options:

A.  

True

B.  

False

Discussion 0
Questions 26

Which of the following statements about the management functions of the network management data center (DC) are correct?

Options:

A.  

DC functions include saving and restoring device configuration files and imaging programs

B.  

There are two operation entrances for the DC function: resource management and physical view

C.  

As an FTP/TFTP server, the network management server must start the FTP/TFTP service

D.  

When performing the "Configure Network Management FTP/TFTP Parameters" configuration operation on the network management, the default IP and alternative IP should be the IP address of the network management server

Discussion 0
Questions 27

Is the following description correct? The VDSL2 standard specifies a frequency band division of up to 30MHz, which can realize 100Mbit/s high-speed data transmission in a symmetrical uplink and downlink within a short distance.

Options:

A.  

True

B.  

False

Discussion 0
Questions 28

At which layer does the ATM protocol work?

Options:

A.  

Physical layer

B.  

Link layer

C.  

Network layer

D.  

Transport layer

Discussion 0
Questions 29

Is the following description correct? MACThe address is generally from each manufacturerIEEEYou can buy it, but you can also specify it yourself.

Options:

A.  

True

B.  

False

Discussion 0
Questions 30

VLAN division includes which of the following methods?

Options:

A.  

Based on port

B.  

Based on MAC address

C.  

Based on agreement

D.  

Based on physical location

Discussion 0
Questions 31

MA5600 supports ADSL2+, which of the following descriptions about ADSL2+ is incorrect?

Options:

A.  

The maximum downlink speed is 24Mbit/s

B.  

The farthest reachable distance is 6.5km

C.  

Use high frequency bands, sub-channels (32-511) and sub-channels above 512.

D.  

The spectrum bandwidth is 1.104MHz

Discussion 0
Questions 32

Is the following description correct? The cells transmitted in the ATM network have two priority levels, which are distinguished by the CLP bit in the cell header. CLP=1 means high priority, and CLP=0 means low priority.

Options:

A.  

True

B.  

False

Discussion 0
Questions 33

At a certain UA5000 site, due to resource constraints, the entire frame of ADSL users need to pass a VLAN upstream to the IP network. At this time, why should the upstream VLAN in the IPM board be defined?

Options:

A.  

standard vlan;

B.  

smart vlan;

C.  

mux vlan;

D.  

super vlan

Discussion 0
Questions 34

Which of the following isql login database commands is correct?

Options:

A.  

isql -Usa_password -Ssa -PN2000DBServer

B.  

isql -Usa -Ssa_password -SN2000DBServer

C.  

isql -Usa -PN2000DBServer -Ssa_password

D.  

isql -Usa -Psa_password -SN2000DBServer

Discussion 0
Questions 35

In the Solaris 10 operating system, when only ordinary users can ftp to the network management server, which file should be modified so that the root user can also remotely ftp to the server?

Options:

A.  

/etc/ftpusers

B.  

/etc/services

C.  

/etc/system

D.  

/etc/defaultrouter

Discussion 0
Questions 36

Regarding OLT+MDU networking and OLT+ONT networking, what are the correct statements about multicast configuration?

Options:

A.  

The configuration of the two on the OLT is the same.

B.  

When the unicast VLAN and the multicast VLAN are different, the configuration of the two on the OLT is the same.

C.  

When the unicast VLAN and the multicast VLAN are different, under the OLT+MDU networking, an additional gemport-maping and service-port for the multicast VLAN on the MDU should be added on the OLT.

D.  

None of the above

Discussion 0
Questions 37

Is the following description correct? MA5600T can support multiple broadband access services such as ADSL2+, SHDSL and VDSL2.

Options:

A.  

True

B.  

False

Discussion 0
Questions 38

onIPWhich statement is correct in terms of routing?

Options:

A.  

Routing isOSIThe concept of the second layer in the model.

B.  

Any route must include the following three parts of information: source address, destination address, and next hop.

C.  

In a local area network, routing includes the following two parts:IPAddress andMACaddress.

D.  

IPRouting is the guideIPPath information for packet forwarding.

Discussion 0
Questions 39

What are the management protocols running between the OLT and the ONT in the GPON network?

Options:

A.  

HGMP

B.  

OAM

C.  

OMCI

D.  

DHCP

Discussion 0
Questions 40

When testing the average transmit optical power of an optical interface, which of the following descriptions are incorrect?

Options:

A.  

The optical fiber connector and the optical connector on the optical interface board panel are clean and well connected

B.  

The optical power meter is calibrated

C.  

Connect one end of the test pigtail of the optical power meter to the "Rx" port of the optical interface board, and connect the other end of the pigtail to the optical power meter.

D.  

Repeat several times to check whether the maximum and minimum measured average transmit optical power meet the technical requirements.

Discussion 0
Questions 41

Is the following description correct? In EPON, when the fiber length under the PON port is 10KM, the recommended splitting ratio is 1:32; when the fiber length is 20KM, the recommended splitting ratio is 1:16.

Options:

A.  

True

B.  

False

Discussion 0
Questions 42

Which two UDP port numbers are defined by H.248 protocol by default?

Options:

A.  

2943

B.  

2944

C.  

2945

D.  

2946

Discussion 0
Questions 43

What services does TCONT 0 generally run in ONT?

Options:

A.  

IPTV

B.  

VoIP

C.  

Internet

D.  

OMCI

Discussion 0
Questions 44

Which command does the MA5600T use to confirm the auto-discovered board?

Options:

A.  

board add

B.  

board confirm

C.  

board add and board confirm

D.  

None of the above

Discussion 0