多选题
Which two statements are true about the rescue configuration file?（）
It must include a root password
It is roll back file number 50, and you can recover it by issuing rollback 50
It is created by issuing request system configuration rescue save
It is updated automatically when you commit
单选题
Referring to the exhibit, which type of classifier is being used in the CoS configuration?（）
behavior aggregate
policer
multifield
forwarding policy
单选题
You need to control SSH, HTTP, and Telnet access to an MX240 router through any interface. You have decided to use a firewall filter. How should you apply the firewall filter?（）
as an outbound filter on interface fxp0
as an outbound filter on interface lo0
as an inbound filter on interface fxp0
as an inbound filter on interface lo0
单选题
You have been asked to use a 23-bit network mask to segment the network block 209.18.12.0, How many usable host address will there e per subnet?（）
510
1022
2046
8190
单选题
You have been asked to use a 23-bit network mask to segment the network block 209.18.12.0, How many usable host address will there e per subnet?（）
510
1022
2046
8190
单选题
Which command do you use to identify the meaning of a syslog message?（）
help log messages
man log messages
man syslog
help syslog
单选题
What represents the binary equivalence of 96?（）
11010100
01100000
11010000
11101010
11000000
单选题
What must be configured prior to the first commit after factory defaults are loaded?（）
root authe ntication
default gateway
hostname
management services
多选题
Which two login-class permissions could permit a user to view the system hierarchy of the active configuration? （）
system permision
view-configuration permission
network permission
super-user permission
单选题
Which statemetn is true regarding the Network Time Protocol (NTP) on Junos devices?（）
MD5 authenticaton is supported by the Junos OS
Server mode is not supported by the Junos OS
The Junos OS can provide a primarytime reference
The Junos OS does not support the use of a boot server
