CCNP系列認(rèn)證CCNP(642-311)單項(xiàng)選擇題每日一練(2019.01.06)

來源：考試資料網(wǎng)

1 With R4.0, how many total DCC tunnel connections can each ONS 15454 support using the TCC+ card?（）

2 Which is a legitimate bandwidth matched pair?（）

3 Which timing mode is appropriate for a SONET NE that is adjacent to a SONET NE using BITS-1 timing source?（）

4 What protection method is used in 4F BLSR networks?（）

5 In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）