Independence Day Special Sale Limited Time 70% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: scxmas70

H35-260 Exam Dumps - HCSA-Field-Transmission & PTN V1.0

Question # 4

The EDFA erbium-doped fiber amplifier is a key component of the new generation of optical fiber systems. Which of the following options are correct for the description of its advantages?

A.

High gain

B.

High output power

C.

The working wavelength is consistent with the minimum attenuation window of single-mode fiber

D.

Low noise figure

E.

Gain Flattening

Full Access
Question # 5

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

A.

Output standard and stable wavelength

B.

The method using direct modulation

C.

Larger dispersion tolerance

D.

Using LE

Full Access
Question # 6

MPLS is used to label packets instead of IP forwarding. Which of the following descriptions about MPLS packet encapsulation are correct?

A.

The Type field in the ETH header is set to 0x8847 to indicate that it is followed by MPLS label encapsulation

B.

The nested encapsulation of MPLS can only be two layers, PW and Tunnel two layers of labels

C.

The MPLS label of the Tunnel carrying the PW, where the S bit is set to 1

D.

IP packets can be directly carried on the Tunnel

Full Access
Question # 7

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

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

Full Access
Question # 8

The ETH_UWK_DOWN alarm indicates that the network port connection is faulty. The possible reasons do not include which of the following?

A.

The working modes of the sending and receiving ends are inconsistent

B.

Link failure

C.

Peer device failure

D.

There is no light received at the local end

Full Access
Question # 9

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?

A.

A1

B.

A2

C.

K1

D.

K2

Full Access
Question # 10

What items are not included in the route advertisement of L3VPN

A.

Local CE to ingress PE routing information exchange

B.

Ingress PE to P routing information exchange

C.

Ingress PE to egress PE routing information exchange

D.

Egress PE to egress CE routing information

exchange

Full Access
Question # 11

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

A.

VRF

B.

RD

C.

Export RT

D.

Import RT

Full Access
Question # 12

In the WDM transmission system, the main factors that affect the unevenness of the power balance of each channel do not include the following?

A.

Inhomogeneity of insertion loss of each channel of the combiner/demultiplexer

B.

The main channel adjustable optical attenuator setting is unreasonable

C.

EDFA gain unevenness

D.

The cable attenuation is too high

Full Access
Question # 13

When PTN carries LTE services, it forwards packets based on MPLS label switching. In the MPLS label, which identification field can be used as a PTN to distinguish the label

at the bottom of the stack?

A.

Label ID

B.

BS

C.

EXP

D.

TTL

Full Access
Question # 14

Which of the following services can the EM20 support?

A.

8 10GE+12 GE

B.

20 GE/FE

C.

Otu1

D.

STM-16

Full Access
Question # 15

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?

A.

Terminal Multiplexer

B.

Add/Drop Multiplexer

C.

Regenerative Repeater

D.

Digital cross-connect equipment

Full Access
Question # 16

In Optâ…¸PTN3900, which of the following slots can MQ1 be placed in?

A.

Slot5

B.

Slot6

C.

Slot9

D.

Slot26

Full Access
Question # 17

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

A.

Commissioning the protection function

B.

Commissioning feature function

C.

Debugging Errors

D.

Optical power commissioning

E.

Cabinet Installation

Full Access
Question # 18

When performing single-site commissioning of SDH equipment, it is necessary to check the single-site hardware: including cabinet and subrack installation inspection, power line resistance measurement, cable layout specification

inspection, single-board appearance inspection, and some single-board inspections. DIP jumper check

A.

True

B.

False

Full Access
Question # 19

Which of the following boards can be inserted into the OSN 9800U64 subrack?

A.

TN18LSC

B.

TNV1N401

C.

TN54GS4

D.

TNF5UNQ2

Full Access
Question # 20

When configuring LMSP, there are two switching modes: single turbulent cutting and inserting and double full switching. Single-ended switching does not require self-use protection

A.

True

B.

False

Full Access
Question # 21

During the normal operation of the network, the service channel protected by ODUK SNCP generates a condition for triggering protection switching, and the service has been automatically switched to the protection channel. When the fault

of the working channel is eliminated, the service cannot be automatically restored to the working channel.

A.

The SNCP service type is inconsistent with the service scenario requirements

B.

Protection group 'Recovery Mode' is 'Non-Recovery'

C.

A small number of bit errors occur in the working channel

D.

Manual switching, locking switching or forced switching commands are implemented artificially

E.

When the working channel is normal, the business needs to delay the "waiting for recovery time" and then switch from the protection channel to the working

channel.

Full Access
Question # 22

Which of the following services can IMA provide protection for?

A.

TDM business

B.

ATM Services

C.

E-Line Business

D.

E-LAN service

Full Access
Question # 23

Regarding the comparison of Raman amplifiers with EDFAs, which of the following statements is false?

A.

The Raman amplifier selects different pump sources to amplify signals in different bands, so the Raman amplifier has no gain bandwidth limit in theory, while the EDFA has a range of gain bandwidth

B.

The gain calculation/testing method of Raman amplifier and EDFA is consistent, both are "gain = output power - input power

C.

The gain medium of Raman amplifier is transmission fiber; the gain medium of EDFA is EDF (Erbium Doped Fiber)

D.

The equivalent noise figure of a Raman amplifier is smaller than that of an

EDFA

Full Access
Question # 24

Which of the following is impossible for the cause of the ETH_LOS alarm?

A.

The cable or fiber of the Ethernet port is not properly connected

B.

Cable or fiber failure

C.

The received optical power of the local network element is too low

D.

In-port loopback

Full Access
Question # 25

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

A.

OUT

B.

OLP

C.

DCP

D.

QCP

Full Access
Question # 26

The DWDM system has extremely high requirements on the stability of the light source. Which of the following factors will affect the stability of the light source?

A.

Temperature

B.

Drive Current

C.

Packaging

D.

Humidity

Full Access
Question # 27

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?

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

Full Access
Question # 28

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

A.

Delay

B.

Jitter

C.

Bandwidth

D.

Packet Loss Rate

E.

Bit Error Rate

Full Access
Question # 29

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?

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

Full Access
Question # 30

In the MPLS label field of the PTN network, which item is the identification field of the stack bottom label?

A.

Label ID

B.

EXP

C.

CS

D.

TTL

Full Access
Question # 31

Which of the following are the possible reasons for the disconnection of network elements?

A.

All the optical paths to the NE are faulty

B.

Failure of the main control board of the network element

C.

The gateway network element connection is interrupted

D.

The device is running

Full Access
Question # 32

In the PHBÌ‚ category of common FTN service flows, which of the following corresponds to the voice service?

A.

CS

B.

AF

C.

BE

D.

EF

Full Access
Question # 33

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

A.

NEIP

B.

NE LSR-ID

C.

Next-hop interface IP

D.

does not involve

Full Access
Question # 34

Which of the following is not included in the function of the Inspector inspection tool?

A.

Perform inspection tasks from the batch of relevant information obtained from NEs

B.

Collect network element performance data for inspection

C.

Support viewing inspection results and importing and exporting inspection data.

D.

Generate an inspection report according to the passing of inspection items and analyze the situation.

Full Access
Question # 35

Which of the following factors is related to pointer adjustment?

A.

The clocks of each NE are not synchronized

B.

Rate

C.

Expenses

D.

Scrambling

Full Access
Question # 36

When the data link layer of a router (IP forwarding) receives a packet whose length is greater than the maximum MTU of the interface that the router will send out, which of the following strategies is adopted?

A.

Drop the group

B.

Fragment the packet

C.

Make a request to the router to reduce its packet size

D.

Forward the packet directly

Full Access
Question # 37

When deploying ring network protection in the PTN7900 network, which items are wrong?

A.

Ring network protection and LSP APS protection can be configured at the same time

B.

The tunnel that carries the service needs to be bound to the ring network, so that the ring network can protect the service

C.

The east-west interface bandwidth of the ring network must be consistent, otherwise the ring network cannot be deployed

D.

When configuring a ring network, the east-west interfaces of the ring network can be on the same board

Full Access
Question # 38

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

A.

True

B.

False

Full Access
Question # 39

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

A.

0DU3 SNCP

B.

Tributary SNCP

C.

SW SNCP

D.

In-board 1+1

Full Access
Question # 40

Which of the following statements about the advantages of QinQ is correct?

A.

Solve the problem of increasingly scarce public network VLAN ID resources

B.

Users can plan their own private network VLAN ID

C.

Provide a simpler L3VPN solution

D.

Make the user network more independent

Full Access
Question # 41

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

A.

Client Official Report

B.

External reporting

C.

Engineer's Report

D.

Internal Reporting

Full Access
Question # 42

In the MPLS-TPOAM architecture of PTN equipment, what are the functions of network performance maintenance?

A.

LB

B.

LM

C.

LT

D.

DM

Full Access
Question # 43

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)

A.

-8.5

B.

-1

C.

-10.5

D.

-7.5

Full Access
Question # 44

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?

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

Full Access
Question # 45

NE1 and NE2 are the intersection nodes of the SNCP ring and the SNCP ring. How many SNCP protection groups and how many unidirectional cross-connects should be configured on NE1.

Which of the following is correct?

A.

4, 2

B.

2,4

C.

2, .2

D.

4, 4

Full Access
Question # 46

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

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

Full Access
Question # 47

Which of the items are unreasonable to configure the default route on the PTN device in the LTE solution?

A.

The default route is configured on the L2/3 master node, and the next-hop points to the L3 master node

B.

A default route is configured on the L2/L3 standby node, and the next hop points to the L3 master node

C.

On the L3 raw node, configure a default route with the next hop pointing to the main L2/L3 node

D.

Configure the default route on the standby point, and the next hop points to the standby L2/L3 node

Full Access
Question # 48

Which of the following detection methods can locate the fault point of LSP?

A.

ZMPLS Tracert

B.

LT

C.

CC

D.

MPLS Ping

Full Access