Mod 2 Flashcards
Operating system has 3
1 the allows user to req tasks from the computer ( can be made by CLI OR GUI)
2- physival part of a computer
3 communi bet hardware n software n this also manages hArdware used to meet software req
1 shell
2 hardware
3Kernel
Allows user to INTERACT w the SYSTEM( thru icons, menu,windows)
This also req less Knowledge
Example ( OIS & ANDROID & LINUX
GUI
2 types of OPERATINGS SYS
1 Pc operating sys
Vs?
2 CLI bases netword operating sys
PC
USE a mouse to make
selections and run programs
• Enter text and text-based
commands
• View output on a monitor
CLI
Use a keyboard to run CLI-based
network programs
• Use a keyboard to enter text and
text-based commands
• View output on a monitor
3 ~ of Access Methods
1 this has insecure remotes cli connection to dev thru network ( use PASS WORD N COMMANDS)
2 physical management port to access para may maintenance ( performs the initIAL CONFIG)
3 estab. SECURE CLI TO dev thru virtual INTERFACE ( highly reco for remotely connecting to a device)
1 TELNET
2 CONSOLE
3 SSH ( Secure Shell )
This program r used to connect to netw. Dev via CONSOLE OR SSH (THIS use Putty, Tera Term , Secure CRT)
TERMINAL EMULATIONS
1 EXEC mode what symbol!
2 Privileged EXEc mode:
1 >
2 #
1 router>
2 router#
3router(config)#
4 Router(config_if)#
1 user EXECution mode
2 privilege Mode
3 global configuration
4 interface Mode
1 a specific parameterthat is defined in the operating system such (as ip protocol)
2 VALUE/VARIABLE DEF by the user
3
1 Keyword
2 argument
basic IOS Command structure?
Prompt_command_Space_ Keyword/Argument
basic IOS Command structure?
Prompt_command_Space_ Keyword/Argument
Syntax check
1this indicates commans n keywords that u enter is literally shown
2 values that u supply
3 this brackets indicates optional (keyword or arguments
4this Indicates a req ELELEMNT
5 tgis is used to delineate oarts of the commands
Boldface
2 italic
3 6square brackets
4braced
5Space
The _____ provides the pattern of format that must be used when entering A command
Command syntax
The IOS HAS 2 forms of help available
1 Context Sensitive help
Vs
2 Command. Syntax Check
1
Helps us finds answer to these questions ( which commands/ keywords r available
2 VERIFIES A C
VALID COMMAND (this provides feedback (invalid input detected at ‘^’ marker.
The ___ provides hot keys and shortcuts that make configuring, monitoring, and
troubleshooting easier.
IOS CLI
The ___ provides hot keys and shortcuts that make configuring, monitoring, and
troubleshooting easier.
IOS CLI
Keystrokes
1 compl a partial command name entry
2 recllls the command in the history buffer w the most recent commands
1 Tab
2 up arrow or CTRL P
Keystrokes
1 compl a partial command name entry
2 recllls the command in the history buffer w the most recent commands
1 Tab
2 up arrow or CTRL P
1 Displays the next line.
2 zDissplays the next screen
3 All-purpose break sequence used to abort DNS
lookups, traceroutes, pings,
Enter
2 sppace bar
CTRL SHIFT 6
1 Displays the next line.
2 zDissplays the next screen
3 All-purpose break sequence used to abort DNS
lookups, traceroutes, pings,
Enter
2 sppace bar
CTRL SHIFT 6
Hot to SECURE USER EXEC MODEA CCESS
Hot to SECURE priviledge EXEC MODEA CCESS
Secure VTY LINE ACCESS
enable
Configure terminal
Line console 0
Password cisco)
login
End
2 configure terminal
Enable secret (name)
Exit
3
config t
Line vty 0 15
Password cisco
Login
End
Hot to SECURE USER EXEC MODEA CCESS
Hot to SECURE priviledge EXEC MODEA CCESS
Secure VTY LINE ACCESS
enable
Configure terminal
Line console 0
Password cisco)
login
End
2 configure terminal
Enable secret (name)
Exit
3
config t
Line vty 0 15
Password cisco
Login
End
Service password=encryption “ is for?
Show running-config “ is for?
To encrypt plain txt, must be in globalpasswords
on the device is now encryted
2 to verify commands
How to banner?
1 banner motd# #
Sabi there 2 files that store the device configuration?
1 this is stored in RAM
2 this is the stored config file stored in NVRAM, contains all commands that will be used by the device sa start or reboot
Running-config
2 start-up config
To save changes made to the running configuration to the startup configuration
file, use the ???. In priviledge exec mode
How to remove CHANGED COMMANDS in running-config
How to remove CHANGED COMMANDS in startup-config
Copy running-config startup-config
2 reload
3erase startup-config
This enables dev to locate one another n establ end-to-end commu on the internet
2 structure of IPv4 address is called? N represented by?
1 IP ADDRESSES
2dotted decimal notation
3 4-dec num by the way 0-255
Types of network media are
Twisted pair copper cables, coaxial cables, fiber-optic cables
IPv4 address info can be entered into end dev thru??SVI means?
1 DHCP (DYNAMIC HOST CONFIGURATION Protocol)
2 switch Virtual Interface Configuration
How config a SVI on switch?
1
Config t
Inter vlan 1
Ip address () (subnet ip)
No shutdown
