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Huawei H35-260 Dumps

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Total 326 questions

HCSA-Field-Transmission & PTN V1.0 Questions and Answers

Question 1

The U2000 license file is stored in the following directory /u2000/server path. If the license file is invalid, the U2000 will not work normally.

Options:

A.

True

B.

False

Question 2

Optix Datacollector supports black box fault data collection for various products. Which of the following products are not supported?

Options:

A.

NG SDH

B.

WDM

C.

COS

D.

PTN

Question 3

Which one is wrong in the description of hardware redundancy backup of PTN7900-32?

Options:

A.

SCA board 1+1 backup

B.

XCS board 6+1 backup

C.

3+3/4+4/5+5 backup of power supply

D.

Fan 1+1 Backup

Question 4

MPLS is located between the data city road layer and the network layer in the TCP/IP protocol stack, and is used to provide services to the IP layer, and at the same time, it gets the business from the mallet road layer.

Options:

A.

True

B.

False

Question 5

Using Huawei PTN7900 to carry the L3VPN service, there is no need to plan VPN peers between the two devices

Options:

A.

Between L2/L3PTN and L3PTN at the core layer

B.

Active and standby L2/L3PTN equipment rooms

C.

Between different L2/L3PTN and L3PTN sink node pairs

D.

Between L3PTNs at the core layer

Question 6

According to the IEEE 802JQ standard, where is the VLAN ID field on the Ethernet?

Options:

A.

Before source MAC address and destination MAC address

B.

Between the source MAC address and the destination MAC address

C.

After the source MA dog address and the destination MAC address

D.

not fixed

Question 7

Both the 1310nm and 1550nm transmission windows are low-loss windows. In the DWDM system, only the 1550nm transmission window is used. Which of the following options is the main reason?

Options:

A.

EDFA operating wavelength flat region includes this window

B.

Small nonlinear effects in the 1550nm wavelength region

C.

1550nm wavelength region is suitable for long distance transmission

D.

1550nm window loss is smaller than 1310nm window

Question 8

Which of the following statements about multiplexed partial range error indication (MS-REI) is true

① B2 byte represents the transmission channel.

② M1 byte folder indicates the transmission channel

③ MS-REI is sent from the receiver to the source.

④ MS-REI is transmitted from source to receiver

⑤ Indicates the number of bit errors detected by the receiver after receiving the MS signal.

Options:

A.

①④⑤

B.

②④⑤

C.

①③⑤

D.

②③⑤

Question 9

What options are included in the role of the control word in PWE3?

Options:

A.

Carry the sequence number forwarded by the packet

B.

Fill the message to prevent the message from being too short

C.

Carrying Layer 2 frame header control information

D.

Carry MPLS labels

Question 10

When the PTN equipment configures the CBS parameters of QoS, the value affects which items are described correctly

Options:

A.

The smaller the CBS, the less data is allowed to burst

B.

The larger the CBS, the more packets are allowed to burst

C.

The smaller the CBS, the greater the delay in forwarding the packet.

D.

CBS used to describe the capacity of the token bucket C

bucket

Question 11

In NG-SDH, the soft reset of the SDH board does not affect the running business, and the hard reset operation will affect the running business.

Options:

A.

True

B.

False

Question 12

After the LAN is divided into VLANs, if computers in different VLANs want to communicate, IP routing needs to be established. Which of the following solutions can be used?

Options:

A.

STP

B.

L3 Switch

C.

L2 switch + router

D.

GVRP

Question 13

Which of the following descriptions of the electrical layer multiplexing and mapping steps of ODU0 is wrong?

Options:

A.

After mapping and multiplexing, the 2 ODU0 signals can be finally multiplexed into 1 OTU1IV signal

B.

After mapping and multiplexing of 8 ODU0 signals, it can be finally used as 1 OTU2V signal

C.

After mapping and multiplexing, 34 channels of ODU0 signals can be finally multiplexed into 1 channel of OTU3V signals

D.

After mapping and multiplexing, 80 channels of ODU0 signals are finally multiplexed into 1 channel of OTU4V

signals

Question 14

Which of the following 7900 single-board software function descriptions are correct?

Options:

A.

The software management module in the board is used to manage signaling protocols such as OSPF/1588V2

B.

The performance and alarm module is mainly used to check the alarm and performance of the single board, and report it to the main control board

C.

QoS, PwE3, L3VPN and other services are implemented by the service management module

D.

The basic framework of the single board provides basic system support, including memory management, process/thread management

Question 15

Which of the following technologies is used in the dynamic BGP MPLS L3VPN to distinguish the same IP address prefix in different VPNs in the BGP protocol?

Options:

A.

VRF

B.

RD

C.

Export RD

D.

Import RD

Question 16

In the PTN network, what are the parameters for measuring QOS?

Options:

A.

Delay

B.

Jitter

C.

Bandwidth

D.

Packet Loss Rate

E.

Bit Error Rate

Question 17

When using the LCAS function, which of the following overhead bytes are used to transmit control information?

Options:

A.

M1

B.

H4

C.

K2

D.

K4

Question 18

After a certain distance transmission in the wavelength division system, the optical signal-to-noise ratio of the signal at the receiving end will decrease to a certain extent. The main reason is which of the following?

Options:

A.

Use of EDFA

B.

Use of demultiplexer

C.

No new fiber is used

D.

Fiber attenuation is too large

Question 19

To determine whether the optical fiber lines and connectors on the wavelength division side are normal, which of the following loopback methods is most suitable?

Options:

A.

WDM side inner loopback

B.

WDM side outer loopback

C.

Client side loopback

D.

Client side outer loopback

Question 20

Which of the following items belong to the debugging work of the playback system?

Options:

A.

Commissioning the protection function

B.

Commissioning feature function

C.

Debugging Errors

D.

Optical power commissioning

E.

Cabinet Installation

Question 21

Which of the following are the basic requirements of the DWDM system for the light source?

Options:

A.

Larger dispersion tolerance

B.

Using LEDs

C.

Output standard and stable wavelength

D.

Using the method of direct modulation

Question 22

Which of the following network element forms supports the functions of branch and line, cross multiplexing between lines and lines, and service adding and dropping functions?

Options:

A.

Terminal Multiplexer

B.

Add/Drop Multiplexer

C.

Regenerative Repeater

D.

Digital cross-connect equipment

Question 23

When the local ODUK signal is plugged into LCK, what processing will the downstream station not do?

Options:

A.

Report the ODUK_PM_LCK alarm

B.

Insert ODUK_AIS information

C.

Return ODUK_PM_BDI

D.

Insert ODUK_PM_LCK alarm

Question 24

Which of the following residual dispersion values are within the dispersion tolerance of the TN52ND2 board?

Options:

A.

700ps/rm

B.

500ps/nm

C.

900ps/nm

D.

600ps/nm

Question 25

Set up the alarm to report automatically, and report the alarm on the device side immediately after the alarm is generated. The alarm board pops up on the network management system. The user can view the alarm information in the alarm board, and does not need to

actively search for words. Unnecessary alarms can be set to not be automatically reported. At this time, the alarm will no longer be reported to the network, even if the synchronization operation is performed.

Options:

A.

True

B.

False

Question 26

If the E1 interface board D75S is not plugged into the OSN3500 hardware, the indicator on PQ1 will light up red

Options:

A.

STAT

B.

ACT

C.

PROG

D.

SRV

Question 27

In the path hierarchy of the WDM network, which paths belong to the optical layer?

Options:

A.

OCH

B.

OTU

C.

OMS

D.

OTS

Question 28

Which of the following Ethernet port alarms is not a physical layer alarm, that is, LSR_NO_HTED has no correlation with it, and there is no suppression relationship?

Options:

A.

ETH_LOS

B.

LASER_MOD_ERR

C.

LASER SHUT

D.

ETHJJNK_DOWN

Question 29

Which of the following does not belong to L3VPN?

Options:

A.

VPWS

B.

BGP/MPLS VPN

C.

GRE

D.

IPSec

Question 30

Now NE1 and NE2 form a chain network, and E1 service is configured between NE1 and NE2. One day, the fiber from NE1 to NE2 is interrupted (each segment of the

reverse fiber). Which of the following alarms will NE2 report?

Options:

A.

MS_RDI

B.

HP_LOM

C.

AU_AIS

D.

LP_RDI

Question 31

Which of the following protection types is not supported by the L302 board?

Options:

A.

0DU3 SNCP

B.

Tributary SNCP

C.

SW SNCP

D.

In-board 1+1

Question 32

In the PTNLTE non-load sharing scheme, the main L3 configuration is used to configure the route tracking multi-hop BFD scheme to prevent loops. Which of the following configurations needs to be performed?

Options:

A.

Create a loopback interface address on the active L3

B.

Create the BFD between the main L3 Loopback interface device L3 and the EPC port

C.

The standby L3 configures the standby traceroute BFD to the EPC

D.

The primary L3 configures the backup traceroute BFD to the EPC

Question 33

During the debugging of the SDH system, if the E1 port reports a T-ALOS alarm, which of the following actions are meaningful?

Options:

A.

Check the E1 wire between D75 and DDF connector

B.

Check the DDF rack connector

C.

Check the business configuration

D.

Check whether the E1 port has loopback

Question 34

Which of the following descriptions about routing loops is wrong?

Options:

A.

Routing loops may occur when different routing domains import routes from each other

B.

Routing loops can only be generated by dynamic routing protocols

C.

Routing loops prevent packets from reaching their destination correctly and cause link congestion

D.

The packet is routed circularly between two or more routers until the TTL is reduced to 0 and

discarded

Question 35

Which items belong to the optical layer path in the path hierarchy of the WDM network?

Options:

A.

OTS

B.

OMS

C.

OCH

D.

OTU

Question 36

Which of the following is the destination MAC address of the Layer 2 header of the data received by the PTN960 from the LTE base station?

Options:

A.

The user-side port MAC of the PTN device connected to the base station

B.

The network port MAC of the PTN device connected to the base station

C.

The MAC of the base station gateway L3VE on the L2/L3 node.

D.

The port MAC of the EPC device connected to the core L3PTN

Question 37

IP As the core protocol of the network layer in the TCP/IP protocol stack, the fixed part of the packet header has 20 bytes and carries a variety of identification fields to define the transmission of the data packet.

Which of the following statements about the identification field is incorrect?

Options:

A.

version (4bit), identifies the IP version, the current iP version is 4, and the next generation version is 6

B.

TLN Time to live, 8bit), when an IP packet is generated, an initial value will be set, and when an old packet is forwarded from one router to another, the TTL value will decrease by 1. When the TTL is 0, the packet will be

discarded

C.

Protocol (8bit), indicating the protocol type to which the IP payload belongs, and a value of 6 indicates that the IP encapsulation is a TCP segment

D.

Total Length (16bit), indicating the length of the IP header

Question 38

In the case of.1:1 protection, according to the provisions of G.8031, the source and sink devices must select the route during switching, so the APS protocol is required to coordinate the work.

Options:

A.

True

B.

False

Question 39

In OptⅸPTN3900, which of the following slots can MQ1 be placed in?

Options:

A.

Slot5

B.

Slot6

C.

Slot9

D.

Slot26

Question 40

In the NG-WDM system, which one of the following boards supports optical line protection?

Options:

A.

OTU

B.

DCP

C.

OLP

D.

QCP

Question 41

When configuring GE services, the types of services in one direction can be different for the transmission and reception of a service.

Options:

A.

True

B.

False

Question 42

What are the possible reasons for the unsuccessful OCH creation by the path method?

Options:

A.

Missing service layer path

B.

Source, sink but inconsistent half-wavelength configuration

C.

The data on the device side and the remote side of the network are not synchronized

D.

The time on the device side and the network element side is not synchronized

Question 43

Which of the following descriptions is correct?

Options:

A.

SAToP encapsulation type processes the CES service by encapsulating the 32 time slots in the E1 frame as a whole and then transparently transmitting it to the opposite end

B.

SAToP supports time division suppression

C.

OptiX PTN supports encapsulating E1 frames of different connections into one PW

D.

One STM-1 channel contains 64 VC12 time slots

Question 44

Which of the following statements about EDFA is false?

Options:

A.

The amplification of optical signal by EDFA is pure optical amplification, no need for photoelectric conversion

B.

Noise figure, saturated output power, gain flatness, gain, etc. are all important parameters to characterize EDFA

C.

1510nm optical monitoring channel can be effectively amplified by EDFA

D.

When the output power of the EDFA reaches saturation, increase the input optical power, and the gain of the EDFA will decrease.

Question 45

The device IP addresses of gateway network elements and non-gateway network elements must be set in the same network segment

Options:

A.

True

B.

False

Question 46

When TCAT adds points, it recalculates the Tunnel and distributes the configuration. Which of the following information is being modified?

Options:

A.

The name of the Tunnel

B.

Tunnel jump information

C.

Tunnel the sink node of

D.

The source node of the tunnel

Question 47

What types of reports are generated by the Inspector inspection tool?

Options:

A.

Client Official Report

B.

External reporting

C.

Engineer's Report

D.

Internal Reporting

Question 48

The U2000 network management supports a variety of external interfaces. Which of the following interfaces can be used when connecting with the network management equipment of other manufacturers?

Options:

A.

CORBA

B.

MML

C.

QX

D.

TL1

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Total 326 questions