What must be configured prior to the first commit after factory defaults are loaded?（）

多项选择题Which two fields are found in an Ethernet frame header?（）

A. TTL
B. flags
C. checksum
D. type

多项选择题You have been asked to configure your router to send link-related SNMP trap notifications to the network managemetn system (NMS) located at address 172.16.17.1.Which two commands are required?（）

A. set snmp trap-group my-trap-group targets 172.16.17.1
B. set snmp targets 172.16.17.1
C. set snmp trap-group my-trap-group link-status
D. set snmp trap-group my-trap-group categories link

单项选择题Which command is used to enable access to J-Web using HTTPS?（）

A. set system remote-access provle https
B. set services remote-access profile j-web-https
C. set system services web-management https
D. set services web-management j-web-https

单项选择题Which user authenticaton method is supported by the Junos OS as the last resort alternative?（）

A. TACACS+
B. RADIUS
C. local user database
D. enable password

单项选择题Using the command user@router# load override lastest.conf where in the file system will the lastest.conf be located?（）

A. /var/home/user
B. /var/config/save0/
C. /var/tmp
D. /config