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H35-260 HSC - Transmission Questions and Answers

Questions 4

What are the items of routing protocols based on link state algorithm?

Options:

A.

OSPF

B.

BGP

C.

ISIS

D.

RIP

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Questions 5

Which of the following statements about switches and how they work is correct?

Options:

A.

The network managed by the switch belongs to a broadcast domain

B.

Learning based on the source MAC address and forwarding based on the destination MAC address

C.

Use the address aging mechanism to maintain the MAC address table

D.

When the destination MAC in the received Ethernet frame is not in its own address table, broadcast the frame to all ports

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Questions 6

Which of the following statements is incorrect about the optical layer interfaces OTM-nm and OTM-nrm of OTN?

Options:

A.

n represents the number of wavelengths carried by the maximum capacity,

B.

m represents the rate. Value can be 1.2 or 3.

C.

r means OTM without OSC function

D.

OTM-nr.m with OSC signal is OTM-nm.

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Questions 7

Which of the following options is not the reason for the R-LOS alarm?

Options:

A.

Broken fiber

B.

Excessive line attenuation

C.

The laser at the transceiver end is damaged

D.

Frame failure

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Questions 8

Which of the following factors is related to pointer adjustment?

Options:

A.

The clocks of each NE are not synchronized

B.

Rate

C.

Expenses

D.

Scrambling

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Questions 9

The frame rate of STM-1, STM-4, STM-16, STM-64 signals are all the same 8000 frames/sec.

Options:

A.

True

B.

False

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Questions 10

The ARP protocol is a broadcast-based protocol through which the host can dynamically discover the MAC address corresponding to an address.

Options:

A.

True

B.

False

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Questions 11

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

B.

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

C.

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

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Questions 12

Which of the following services can the EM20 support?

Options:

A.

8 10GE+12 GE

B.

20 GE/FE

C.

Otu1

D.

STM-16

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Questions 13

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

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Questions 14

The R-LOS alarm has nothing to do with overhead bytes but only with the quality of the incoming signal

Options:

A.

True

B.

False

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Questions 15

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

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Questions 16

Which of the following statements about Uexpert is correct?

Options:

A.

Uexpert can automate U2000 upgrades

B.

Support U2000 remote graphical upgrade

C.

Currently does not support dual system upgrade

D.

Basic Ueasy inspection tool to reduce the risk of upgrade failure

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Questions 17

Linear multiplexing section can be deployed for STM-1 interface in PTN network. What are the following overhead bytes used to transmit APS automatic protection switching protocol?

Options:

A.

A1

B.

A2

C.

K1

D.

K2

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Questions 18

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

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Questions 19

In the OSN6800 subrack, when the OTU is inserted in the 17th slot, electrical layer scheduling can be realized

Options:

A.

True

B.

False

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Questions 20

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

Options:

A.

OTU

B.

DCP

C.

OLP

D.

QCP

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Questions 21

The pump laser is the energy source of the EDFA, and its function is to provide energy for the amplification of the optical signal. Which of the following wavelengths can be used as the output wavelength of the

pump source in the EDFA structure?

Options:

A.

980nm

B.

1510nm

C.

1480nm

D.

1310nm

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Questions 22

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

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Questions 23

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

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Questions 24

When creating a static TUNNEL, you need to specify the interface of the next hop. Which is the displayed address of the next hop?

Options:

A.

NEIP

B.

NE LSR-IP

C.

Next-hop interface IP

D.

does not involve

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Questions 25

In the current network, which of the following is the most common way of dividing VUNs?

Options:

A.

Port based division

B.

MAC-based division

C.

Based on Protocol Division

D.

IP Subnetting

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Questions 26

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

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Questions 27

When the switch is working, the device forwards data according to the MAC address forwarding table. Which of the following statements is correct?

Options:

A.

If the destination MAC address of the packet is the broadcast MAC address, it will be flooded to all ports including the source port.

B.

If the destination address of the message is a unicast MAC address, look up the MAC address table, and if found, forward the frame to the corresponding port (excluding the source port)

C.

If the destination address of the packet is a unicast MAC address, but there is no corresponding entry in the MAC address table, the packet is discarded

D.

If the MAC address entry of the device reaches the upper specification limit of the device, the device cannot learn new MAC address entries, and the packet is discarded.

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Questions 28

Which of the following statements about MST functional modules are true?

Options:

A.

MST is both the source and sink of MS

B.

MST implements BIP-8 statistical calculation of B2 bytes.

C.

MST returns bit error information, but does not return a specific number of bit errors.

D.

MST provides its rdenire channel.

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Questions 29

How many 2M service boards can OSN7500 support at most?

Options:

A.

1

B.

2

C.

3

D.

4

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Questions 30

Of the following protections, which items are protected by the double transmission and reception of the electrical layer?

Options:

A.

Client side 1+1 protection

B.

ODUK SN

C.

ODUK Ring Protection

D.

SWSNCP Protection

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Questions 31

Which of the following statements about ESD protection measures is false?

Options:

A.

All personnel entering the computer room should wear anti-static shoes, anti-static clothing, etc.

B.

Use anti-static tools, such as: anti-static wrists, anti-static tweezers, pullers, etc.

C.

Controlling humidity has little effect on reducing static electricity

D.

All conductors in the computer room must be grounded reliably, including computer terminals and other equipment, and an anti-static workbench must be set up

E.

Static sources such as non-anti-static plastic bags, non-anti-static bubble films, and rubber should be kept away from ESD sensitive devices and sensitive boards, at least 30cm away.

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Questions 32

Four network elements form an STM-4 two-fiber bidirectional multiplexing section protection ring. Which of the following is the maximum service capacity on the ring network?

Options:

A.

1008 2M

B.

504 2M

C.

252 2M

D.

63 2M

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Questions 33

Which one of the following is not necessary to establish a GE-level service path on the network management?

Options:

A.

Complete OSC path

B.

Complete ODU1 Path

C.

Complete OMS Path

D.

Complete OCH Path

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Questions 34

Which of the following signals is sent back to the sender by the receiver?

Options:

A.

AIS

B.

LCK

C.

IAE

D.

BDI

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Questions 35

Which of the following services can IMA provide protection for?

Options:

A.

TDM business

B.

ATM Services

C.

E-Line Business

D.

E-LAN service

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Questions 36

Which of the following descriptions about the Optix OSN 9800 subrack are correct?

Options:

A.

When the OSN 9800 P18 is used as the slave subrack, the IU18 slot can only be inserted into the service board

B.

When the OSN 9800 universal platform subrack is used as the slave subrack, the main control board must be placed

C.

In the OSN 9800 U32 subrack, IU70 is the active CTU and IU78 is the standby CTU

D.

The OSN 9800 U16 subrack has a total of 16 service slots, these slots have the same capacity, and the maximum support single slot 400bit/s ODUK crossover

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Questions 37

Which one is correct about the description of MC-LAG on L2/13 nodes in LTE network?

Options:

A.

The L2VE interface can be directly selected as a member port of MC-LAG

B.

Configurable to load burden mode

C.

The higher the active/standby priority value, the lower the priority

D.

The heartbeat is carried by unidirectional LSP and configured with 1:1 protection

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Questions 38

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

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Questions 39

The M40 board has 2 waves of access, and the power of each wave is -4dBm. So which of the following values is the power of the M40 output port? (M40 insertion loss is 6.5dBm)

Options:

A.

-8.5

B.

-1

C.

-10.5

D.

-7.5

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Questions 40

100mw is roughly equal to how many dBm?

Options:

A.

13dBm

B.

15dBm

C.

20dBm

D.

10dBm

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Questions 41

When deploying LAG, which of the following can the traffic load sharing hash algorithm be based on?

Options:

A.

Source MAC

B.

Destination MAC

C.

Source and destination MAC.

D.

Source and Destination IP

E.

DSCP

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Questions 42

In the PTNLTE solution, which source interface is used when deploying multi-hop daily BFD at the core L3 nodes in the prefecture and city?

Options:

A.

L3VE sub-interface

B.

Link Aggregation Port

C.

LOOPBACK port

D.

City L3 node interconnection interface

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Questions 43

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

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Questions 44

Which of the following items are the main functions of the U2000 network management?

Options:

A.

Topology Management

B.

Performance Management

C.

Alarm Management

D.

End-to-end business management

E.

Resource management

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Questions 45

Which step is not included in the NE upgrade process of PTN equipment?

Options:

A.

Upgrade Feasibility Check

B.

Load the package

C.

to distribute

D.

Backup after activation

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Questions 46

Where in the L2/L3 node is the VLAN in the Layer 2 header stripped in the packet sent by the base station in the LTE solution?

Options:

A.

Network side interface

B.

L2VE sub-interface

C.

L3VE sub-interface

D.

LOOPBACK interface

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Questions 47

When creating a static tunnel, you need to specify the interface of the next hop. Which is the displayed address of the next hop?

Options:

A.

NEIP

B.

NE LSR-ID

C.

Next-hop interface IP

D.

does not involve

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Questions 48

When the scheduling granularity of the N302 board is ODUflex, what are the supported protection types?

Options:

A.

ODUk SNCP Protection

B.

Tributary SNCP Protection

C.

In-board 1+1 protection

D.

Client side 1+1 protection

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Exam Code: H35-260
Exam Name: HSC - Transmission
Last Update: Apr 29, 2024
Questions: 326

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