CCNA系列認證CCNA(640-801)多項選擇題每日一練(2019.05.09)

來源：考試資料網(wǎng)

1 Which of the following are true regarding a network using a subnet mask of 255.255.248.0?（）

2 Which of the following components must be elected before the Spanning Tree Protocol can converge in a switched LAN?（）

3 Which of the following can lead to the contribution of LAN traffic congestion?（）

4 Which IOS commands can a network technician use to verify all RIP, IGRP,EIGRP, and OSPF routing protocol configurations?（）

5 Which of the following can LCP successfully negotiate during the establishment of a PPP connection?（）