CCNP系列認證CCNP(642-311)單項選擇題每日一練(2019.01.16)

來源：考試資料網(wǎng)

1 Click the Exhibit button. Which type of multiplexer is shown in the exhibit?（）

2 Click the Exhibit button. Which type of protection is shown in the exhibit?（）

3 A 2.5 Gb/s (OC-48 or STM-16) optical signal with a dispersion tolerance of 1200 ps/nm goes through fiber with 18ps/nm*km of dispersion. How many 15216-DCU-350 equivalents are needed for enough compensation after traveling 100 km?（）

點擊查看答案

4 What protocol enables Ethernet over SONET/SDH encapsulation interoperability between the G-series and ML-series Ethernet cards?（）

點擊查看答案

5 A customer has 2 DS1s to add between adjacent nodes in a UPSR ring. What type of circuit should you recommend?（）

點擊查看答案