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

Questions # 51:

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

Options:

MST is both the source and sink of MS

MST implements BIP-8 statistical calculation of B2 bytes.

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

MST provides its rdenire channel.

Questions # 52:

Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?

Options:

802.1a

802.1d

802.1q

802.11ab

Questions # 53:

In PTN, LSP is created statically. Which items are correct in the following description about LSP creation?

Options:

The value of the outgoing label of the previous node and the incoming label of the next node are equal

Multiple labels can be assigned to the same A FEC

Tunnel is being created, PHP is not enabled

The label values on different nodes of the LSP cannot be the same

Questions # 54:

On the PTN equipment, when the tunnel bears data and forwards, which one is wrong in the description of the actions of each node on the LSP?

Options:

lngress encapsulates the data entering the MPLS domain

The Transit node searches the label forwarding information table and performs label switching

Penultimate jump pop-up label

In Layer 3 forwarding, the Egress node needs to look up the routing table

Questions # 55:

The.0ptiX0SN 8800 T64 system is equipped with 4 PIU boards, and uses 1+1 hot backup mode to supply power to the system.

Options:

True

False

Questions # 56:

On the U2000 network management, you can make an inner ring and an outer ring on the PTNE1 port to facilitate testing

Options:

True

False

Questions # 57:

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?

Options:

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

Questions # 58:

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?

Options:

High gain

High output power

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

Low noise figure

Gain Flattening

Questions # 59:

PTN's ACR time sodium and 1588 clock can achieve time synchronization.

Options:

True

False

Questions # 60:

MPLS is located between the data city road layer and the network layer in the TCP/IP protocol stack, and is used to provide services to the IP layer, and at the same time, it gets the business from the mallet road layer.

Options:

True

False

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