单项选择题
A. The Junos kernel is based on the Solaris operating sytem
B. The Junos kernel is based on the GNU Zebra operating system
C. The Junos kernel is completely original and not based on any other operating system
D. The Junos kernel is based on the FreeBSD UNIX operating system
单项选择题 Which command displays the amount of space available on the storage media（）
多项选择题 You have been asked to establish reachibility between Router 1s and Router2s loopback addresses as shown in the exhibit.Which two steps will accomplish this task?（）
单项选择题 What is the purpose of a network mask?（）