H31-311_V2.5-ENU V1

When serious bit error seconds occur in the PM segment of ODUk, the network management will report the ODUk_PM_ES alarm.A . TrueB . FalseView AnswerAnswer: B

A. The value range of U-PTR is 0~782. When the receiving end receives invalid pointer values for 8 consecutive frames, which of the following alarms will the device generate? A. AU-AIS B. AU-LOP C. MS-AIS D. MS-RDIView AnswerAnswer: B

RAMAN amplifier utilizes which of the nonlinear effects?A . Self-Phase ModulationB . DispersionC . Raman scatteringD . Four-wave mixingView AnswerAnswer: C

Which of the following statements is wrong?A . In the MPLS VPNE connection model, the network consists of the operator's backbone network and the user's various sites. The so-called VPN is the division of a set of sites. One VPN corresponds to a set of several sites.B . The network...

The levels of forced switching, fiber break switching, manual switching, and practice switching are arranged from high to low.A . TrueB . FalseView AnswerAnswer: A

Which of the following boards supports QinQ function?A . EFT8B . EGT2C . EMS4D . EMR2View AnswerAnswer: C

Which of the following databases is used by U2000 on PC/WIN2003?A . SybaseB . Microsoft SQL Server 2000C . FoxProD . DB2View AnswerAnswer: B

The SDH frame structure is a rectangular block frame based on which of the following options?A . BytesB . BitC . Block D frameView AnswerAnswer: A

The negative adjustment position of the TU pointer is at which of the following bytes?A . V1B . V2C . V3D . V4View AnswerAnswer: C

Which of the following is not included in the basic architecture of MPLS L2VPN?A . ACB . VCC . TunnelD . S-VLANView AnswerAnswer: D