The following command to save the running configuration to the startup configuration.
Router#copy running-config startup-config - Save the running configuration to the startup
The following commands are used to show the startup and running configurations on a router.
Router#show startup-config - Displays the startup configuration
Router#show running-config - Displays the running configuration
The following commands is used to show information about the router, including the configuration register value.
Router#show version - Shows information about the router, including the configuration register value
The following command is used by network administrators to determine the route a packet takes through the network to reach its destination.
Router#trace 220.127.116.11 - Send a trace route to IP address 18.104.22.168
The following PING command is used by network administrators to test connectivity to other devices on a network.
Router>ping 22.214.171.124 - Test connectivity to device using IP address 126.96.36.199
The following command is used to reboot a Cisco router or switch.
Router#reload - Restart a router/switch
The following commands are used to enter and exit privileged EXEC mode on Cisco routers or Switches.
Router>enable - Enter privileged EXEC mode
Router#disable - Exit privileged mode to go back to user EXEC mode
ICND is the acronym for "Interconnecting Cisco Network Devices" which refers to a set of IT exams issued by Cisco Systems.
There are two Cisco exams called ICND1 and ICND2 which are geared towards achieving the CCNA "Cisco Certified Network Associate" certification.
When you pass the ICND1 you become CCENT "Cisco Certified Entry Networking Technician" certified, this is Cisco's entry-level computer networking certification.
You then go on to study the ICND2 syllabus, which will earn you the CCNA cert when you pass the ICND2 exam.
You could study the whole CCNA syllabus and take one composite CCNA exam.
To help you decide which pathway is best for you read our blog post "CCNA or CCENT".
(Image courtesy of James Almond)
There are a range of networking and computer network related certifications that will enable you to learn and validate your knowledge in the field of networking.
If you are looking to learn about computer networking basics then you should start with a Cisco Certified Network Associate (CCNA) or CompTIA A+ or Network+ certifications, these will put you in a good position to move up to intermediate networking qualifications such as Cisco's Certified Network Professional (CCNP).
However you might like to consider specializing in an area of networking, such as security, voice or wireless. There are specialized certifications for these areas of expertise including Cisco's CCNA wireless, CCNA voice or CCNA security. CompTIA also provide specialized certification paths including Security+ certification.
There are many test centers around the world where you can sit your CCNA exam. Click here to find your nearest CCNA test center.
Currently Pearson VUE are the only company who provide testing for Cisco certifications. Click here to read more about how to find the CCNA exam cost in your country.
To help you prepare for your CCNA exam, you should check out our practice CCNA questions and answers, plus our CCNA cheat sheet.