Question 1

In the scenario of non-convergent OUT processing SDH standard signals, both A and B are WDM stations, and A station OTU The R_LOS alarm is detected on the client side of OUT, and after processing the alarm on the WDM side of OUT, in the downstream B The client side of the station detects and reports the REM_SF alarm, and station B transmits the signal to its downstream client equipment, and Report the R_LOS alarm to the client device.

Options :

A : TRUE

B : FALSE

Answer: B

Question 2

The following description about MPLS (Multi-Protocol Label Switching) is wrong.

Options :

A : MPLS adopts a dual-plane structure, which is divided into a control plane and a forwarding plane. The control plane is connection-oriented. The forwarding plane is connectionless

B : MPLS packet forwarding is based on labels.

C : In the field of packet transmission, the main application of MPLS technology is to construct a tunnel to carry PWE3 transmission Various types of services (such as: TDM, ATM, Ethernet) to achieve end-to-end services in packet networks transmission.

D : MPLS is not a business or application, but a standardized routing and switching technology platform that can support various High-level agreements and business.

Answer: A

Question 3

When the standard Ethernet frame length of 64Byte signal is connected to the Ethernet board, if the QinQ function is enabled Yes, what is the actual frame length of the signal inside the board () Byte?

Options :

A : 80

B : 84

C : 64

D : 68

Answer: D

Question 4

(Single choice) The TOA board is an 8-channel arbitrary rate service tributary processing board. The following is about the TOA (STND) board In the description, the error is:

Options :

A : The maximum cross-connect capacity of the TOA board is 20 Gbit/s

B : When the client-side service is GE, the port working mode is ODU0 non-convergence mode, and intra-board crossover needs to be configured

C : When the client side service is STM-16, the port working mode is ODU1 non-convergence mode, and no configuration board is required Inner cross

D : When the client-side service is FE, the port working mode is ODU1 aggregation mode, and intra-board crossover needs to be configured

Answer: B

Question 5

(Single choice) Which of the following protocols is used to complete the verification of the TE link in the ASON network?

Options :

A : LMP

B : OSPF-TE

C : RSVP-TE

D : CSPF

Answer: A