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Quiz!
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Cisco supports two major types of switch operating systems: ??? |
IOS and Cat OS |
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IOS |
Internetwork Operating System |
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Cat OS |
Catalyst Operating System |
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Most Cisco Catalyst switch series today run only ______ operating system? |
IOS |
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Three meanings of the SYST LED? |
OFF: switch is off |
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Three popular ways to access switch CLI? |
console port, Telnet, SSH |
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Rollover cable has what connectors? |
RJ-45, DB-9 |
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8N1 means? |
8-bit ASCII |
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data rate for a PC's serial port connected to a switch's console port using default settings for the switch? |
9600 bytes/second |
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hardware flow control should be (enabled / disabled) when connecting a PC's serial port to a switch's console port using default settings for the switch? |
disabled |
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What about Telnet presents a security risk? |
It transmits all data as cleartext, including username and password for the switch. |
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Telnet and SSH use what well-known TCP port numbers? |
SSH: 22 |
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By default a switch allows for access by which of the three methods (SSH/Telnet/console) |
console only |
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vty |
virtual terminal |
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switches support __ concurrent vty sessions |
16 |
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command to go to privileged mode |
enable |
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command to go to user mode |
disable |
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if the command prompt lists the hostname followed by a >, the user is in _____ mode, if it's a # the user is in _____ mode |
user, enable (or privileged, means same thing) |
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command to set enable password |
enable secret 'password' |
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T/F: if enable password is not set, IOS allows access for all to enable mode by default |
False |
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T/F: if enable password is not set, IOS allows access to enable mode from console |
True |
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difference between debug and show commands |
show = display information once debug = information is displayed automatically when something changes in the system. debug turns on the messages for a particular item, "no debug" turns the messages off |
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how to disable a single debug option? |
repeat the same debug command with the same options, prefaced by the word "no" |
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command to disable all current debugs |
no debug all |
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command to check switch CPU utilization |
show process |
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what does "terminal monitor" command do? |
allows debug messages to be sent out on vty lines |
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What does the "interface" command do? |
subcommand to enter interface configuration mode |
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Commands used in a specific context of configuration mode are called _____? |
subcommands |
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How to enter global configuration mode from enable mode? |
"configure terminal" |
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speed command does what / is effective where? |
sets inteface speed |
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line configuration mode allows configurations pertaining to what? |
the line used to reach the CLI, so console or 1 of the 16 vty lines |
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how to end configuration mode and go back to priviliged EXEC mode? |
end / Ctrl-z |
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the following prompt: hostname(config-if)# means you are in what mode? |
interface configuration mode |
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RAM stores? |
active configuration file |
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ROM stores? |
bootstrap loader |
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Flash memory stores? |
full IOS images, possibly other files such as configuration backups |
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NVRAM stores? |
the initial / startup configuration file |
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the file known as startup-config is stored where? |
NVRAM |
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the file known as running-config is stored where? |
RAM |
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most basic method of moving configuration files in and out of a switch is the _____ command |
copy |
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"copy" can move files between which 3 locations? |
TFTP, RAM, NVRAM |
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T/F: "copy"-ing a config file into RAM on a running switch gives the same result as if that config file was loaded at startup |
False |
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T/F: "copy"-ing a config file to NVRAM or a TFTP server will erase the existing file in that location |
True |
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What happens when a config is "copy"-ed into RAM? |
It acts as if each command in the config file was entered at the console in order |
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"reload" does what? |
restarts the switch, erases RAM and copies the startup-config into RAM as part of the reload process |
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3 commands to erase NVRAM |
write erase |
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preferred command to erase NVRAM |
erase nvram: |
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alternative names for startup-config |
nvram: |
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alternative names for running-config |
system:running-config (there's only one alternative name) |
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The switch will prompt the user if they want to enter setup mode after starting the switch if _________. |
The NVRAM is empty |
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difference between "exit" and "end" configuration sub-modes |
exit - moves back to the next higher mode in configuration mode end - exits configuration mode and goes back to enable mode from any of the configuration submodes |
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Ctrl-Z does the same thing as what command? |
"end" |
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"setup" command |
enable mode command which places the user in setup mode (not configuration mode) |
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"quit" command |
disconnects teh user from the CLI session |
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The commands which can be entered in user or privileged mode are known as _____ commands |
EXEC |
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user mode is also known as |
user EXEC mode |
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privileged mode is also known as |
enabled mode |
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context-setting commands do what? |
move you from one configuration subcommand mode to another *context-setting is not a cisco term |
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what is the meaning of colon character used, in example in the command, "erase nvram:" |
It refers to a filesystem. It can be thought of as similar to the drives in DOS, where every drive letter is followed by a ':' character. |
