Online Access Free H31-311-ENU Practice Test

The clock unit can access an external clock source as the timing signal source of the system only through the external clock interface. In addition, it can output the processed clock and provide the clock source for other devices that require timing.

• A.FALSE
• B.TRUE

Which of the following is not a condition for triggering multiplex section protection (MSP)?

• A.The MS-AIS signal is detected.
• B.R-LOS is detected.
• C.R-LOF is detected.
• D.AU-AIS is detected.

Which of the following is the frame structure of STM-16?

• A.9*270*64
• B.9*270*16
• C.9*270*1
• D.9*270*4

Which of the following statements about the signal label byte C2 is incorrect?

• A.The C2 byte is used to indicate the multiplexing structure of the VC frames and the payload property.
• B.C2=00H indicates that the VC-4 is unequipped.
• C.The C2 byte to be sent must match the C2 byte to be received.
• D.If the C2 byte mismatch is detected, an LP_SLM alarm is reported in the corresponding VC-4 channel.

Which of the following is not the northbound interface provided by the U2000?

• A.SNMP
• B.CORBA
• C.Qx
• D.XML