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

Questions # 61:

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

Options:

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

Cable or fiber failure

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

In-port loopback

Questions # 62:

In the PIN LTE bearer solution, if the link between the core L3 PTN node and the SGW is faulty, what are the triggering detection mechanisms and protection mechanisms?

Options:

MPLS OAM, SVPN FRR

BFD, IP/VPN FRR

BFD, VPN FRR

MPLS OAM, IP/VPN FRR

Questions # 63:

Which of the following descriptions about the PTN network deployment ring network intersecting ring are correct?

Options:

Each ring operates independently, and when multiple rings intersect, they operate independently in pairs

The intersection point requires business synchronization

Once the business reaches the intersection, it will choose to cross the ring

Questions # 64:

The loss of optical fiber mainly includes the following?

Options:

Absorption loss

Reflection Loss

Bending loss

Scatter loss

Questions # 65:

Which of the following optical loss alarms will not cause service interruption?

Options:

CHAN_LOS

R_LOS

MUT_LOS

OSC_LOS

Questions # 66:

Which of the following identification fields in the data packet header of each protocol layer cannot identify the upper layer data type carried by this layer

Options:

TTL

TYPE

Protocol

Source Port

Questions # 67:

When creating an electrical layer path, what options (Client, ODUK, ODUflex) may cause the route calculation to fail

Options:

Unable to satisfy routing constraints

Routing resources are unavailable

The optical power attenuation on the service layer path OCH is too large

Services cannot be created between ports

Questions # 68:

IEEE 802.1Q defines the structure of VLAN tags, including TPID, PRI, CR, and VLAN ID. Which of the following is used to classify service

priorities?

Options:

VLAN ID

PRI

TPID

Questions # 69:

Plan the base station IP address network segment 10.1.1.0/26 Which of the following addresses can be used by the base station?

Options:

10.1.1.0

10.1.1 6̂2

wira

10.1.1.64

Questions # 70:

The R-LOS alarm has nothing to do with overhead bytes but only with the quality of the incoming signal

Options:

True

False

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