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

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

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.

A.

True

B.

False

Which of the following statements about the slave subrack SCC function is correct?

A.

Status management of boards from subracks

B.

DCN message forwarding

C.

Protection switching protocol processing of this subrack

D.

Handling of Overhead

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?

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

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?

A.

CORBA

B.

MML

C.

QX

D.

TL1

When using OptiX Datacollector to collect data, it can be collected by network element, which means to collect the fault data of all boards below the network element, or it can be collected by single board to collect

the fault data of a single board under the network element.

A.

True

B.

False

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

Which of the following does not belong to the multi-level connection monitoring mode of OTN

A.

Overlap Mode

B.

Cascading Mode

C.

Nested Mode

D.

Punch-Through Mode

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

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

Which of the following services can IMA provide protection for?

A.

TDM business

B.

ATM Services

C.

E-Line Business

D.

E-LAN service