Chapter 7 - Managing a Cisco Internetwork Flashcards
(21 cards)
Identify the steps in the router boot sequence.
The steps in the boot sequence are POST, loading the IOS, and copying the startup configuration from NVRAM to RAM.
Save the configuration of a router or switch.
There are a couple of ways to do this, but the most common, as well as the most tested, method is copy running-config startup-config.
Erase the configuration of a router or switch.
Type the privileged-mode command erase startup-config and reload the router.
Describe the value of CDP.
Cisco Discovery Protocol can be used to help you document as well as troubleshoot your network.
List the information provided by the output of the show cdp neighbors command.
The show cdp neighbors command provides the following information: device ID, local interface, holdtime, capability, platform, and port ID (remote interface).
Understand how to establish a Telnet session with multiple routers simultaneously.
If you telnet to a router or switch, you can end the connection by typing exit at any time. However, if you want to keep your connection to a remote device but still come back to your original router console, you can press the Ctrl + Shift + 6 key combination, release it, and then press X.
Identify current Telnet sessions.
The command show sessions will provide you with information about all the currently active sessions your router has with other routers.
Build a static host table on a router.
By using the global configuration command ip host host_name ip_address, you can build a static host table on your router. You can apply multiple IP addresses against the same host entry.
Verify the host table on a router.
You can verify the host table with the show hosts command.
Describe the function of the ping command.
Packet Internet Groper (ping) uses ICMP echo requests and ICMP echo replies to verify an active IP address on a network.
Ping a valid host ID from the correct prompt.
You can ping an IP address from a router’s user mode or privileged mode but not from configuration mode, unless you use the do command. You must ping a valid address, such as 1.1.1.1.
What is the command to copy the startup-config file to DRAM?
copy start run
What command can you use to see the neighbor router’s IP address from your router prompt?
show cdp neighbor detail or show cdp entry *
What command can you use to see the hostname, local interface, platform, and remote port of a neighbor router?
show cdp neighbor
What keystrokes can you use to telnet into multiple devices simultaneously?
Ctrl+Shift+6, then X
What command will show you your active Telnet connections to neighbor and remote devices?
show sessions
What command can you use to merge a backup configuration with the configuration in RAM?
copy tftp run or copy start run
What protocol can be used on a network to synchronize clock and date information?
NTP
What command is used by a router to forward a DHCP client request to a remote DHCP server?
ip helper-address
What command enables your switch or router to receive clock and date information and synchronize with the NTP server?
ntp server ip_address version 4
Which NTP verification command will show the reference master for the client?
show ntp status
