QUESTION: 149

In order to quickly locate and eliminate the faults of optical network equipment in a timely manner, maintenance personnel are proficient in the basic operation of common transmission instruments.
Which of the following instruments are commonly used in optical network equipment maintenance?

2M Bit Error Tester
Optical Power Meter
SDH Analyzer
Light decay
Multimeter
Pigtail

Answer(s): A,B,C,E

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QUESTION: 150

In order to support the self-opening of the base station, the DHCP Relay function is deployed in the PTN LTE bearer network.
Which of the following descriptions is wrong?

DHCP Relay is deployed on L2/L3 nodes
The default relay hop count of DHCP Relay is 255
DHCP server address can be configured with multiple
Configure routing on the PTN to the DHCP router

Answer(s): B

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QUESTION: 151

What is the main function of the physical layer?

Provide a reliable information transfer mechanism
A retransmission mechanism responsible for error detection and information
Responsible for the physical and electrical interface between user equipment and network end equipment
Establish and clear a network-wide connection between two transport protocol entities

Answer(s): C

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QUESTION: 152

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

The software management module in the board is used to manage signaling protocols such as OSPF/1588V2
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
QoS, PwE3, L3VPN and other services are implemented by the service management module
The basic framework of the single board provides basic system support, including memory management, process/thread management

Answer(s): B,C,D

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QUESTION: 149

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QUESTION: 152

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