Question

23. You try to telnet into SFfrom router Corp and receive this
message: Corp#telnet SF
Trying SF (10.0.0.1)...Open
Password required, but none set
[Connection to SF closed by foreign
host] Corp#
Which of the following sequences will address this problem correctly?
a. Corp(config)#line console 0
Corp(config-line)#password
password Corp(config-line)#login
b. SF config)#line console 0
SF(config-line)#enable secret
password SF(config-line)#login
c. Corp(config)#line vty 0 4
Corp(config-line)#password
password Corp(config-line)#login
d. SF(config)#line vty 0 4
SF(config-line)#password
password SF(config-line)#login
24. Which command will delete the contents of NVRAM on a switch?
a. delete NVRAM
b. delete startup-config
c. erase flash
d. erase startup-config
e. erase start
25. What is the problem with an interface if you type show interface g0/1and
receive the following message?
Gigabit 0/1 is administratively down, line protocol is down
a. The keepalives are different times.
b. The administrator has the interface shut down.
c. The administrator is pinging from the interface.
d. No cable is attached.

Answer 1

23. d — SF(config)#line vty 0 4
SF(config-line)#password password
SF(config-line)#login
Explanation: Telnet uses vty lines on SF; you must set a vty password and enable login.

24. d — erase startup-config
Explanation: The startup-config in NVRAM is removed with "erase startup-config" (also commonly "write erase").

25. b — The administrator has the interface shut down.
Explanation: "administratively down" indicates the interface has been disabled with the shutdown command.