HCSA-Field-Transmission & PTN V1.0 (H35-260) Practice Test

Questions # 91:

Which of the following reasons may cause bit errors in the business?

Options:

The dispersion compensation is unreasonable, such as under-compensation or over-compensation

The optical power of the incoming fiber is too high or too low

The performance of the transmitting laser of the OTU board at the originating end deteriorates

The pigtail connector is seriously polluted

OSC board failure

Questions # 92:

The L3VPN routing of the PTN LTE network includes user-side routing and network-side routing. What are the items based on which VPN routing forwarding table is finally generated?

Options:

User-side routing needs to be manually configured by the administrator

The PTN6900 at the core layer needs to be configured as a VPN peer relationship

Use the U2000 and the configured user-side routes to automatically calculate and generate network-side routes

Use MP-BGP to propagate user-side

routes

Questions # 93:

Any service cross-connect can only be configured in inter-board cross-connect, and does not require the participation of XCS boards

Options:

True

False

Questions # 94:

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

Options:

OCH

OTU

OMS

OTS

Questions # 95:

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

Options:

Broken fiber

Excessive line attenuation

The laser at the transceiver end is damaged

Frame failure

Questions # 96:

If the E1 interface board D75S is not plugged into the OSN 3500 hardware, which indicator light on the PQ1 will light up red?

Options:

PROG

SRV

ACT

STAT

Questions # 97:

MPLS was originally proposed to improve the forwarding speed of routers. It integrates the advantages of IP and ATM. What are the characteristics?

Options:

Connectionless-oriented forwarding plane

Connection-Oriented Forwarding Plane

Connection-Oriented Control Plane

Connectionless-oriented control plane

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