单项选择题

Which account is used to access a Junos device in factory-default configuration?（）

A.root
B.admin
C.juniper
D.user

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单项选择题

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

A.root authe ntication
B.default gateway
C.hostname
D.management services

单项选择题

What represents the binary equivalence of 207?（）

A. 11001111
B. 11101011
C. 11010111
D. 11010101

单项选择题

Which two statements are true of a network mask?（）

A. A subnet mask specifies the portion of an IP address that is in a binary format
B. A subnet mask specifies the portion of an IP address that is in a decimal format
C. A subnet mask specifies the portion of an IP address that represents a network prefix
D. A subnet mask specifies the portion of an IP address that represetns network hosts