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Miscellaneous

Interface range command

If you have multiple interfaces that need to be configured with the same settings, you can use the interface range command to specify a range of interfaces to which the subsequent commands will be applied.

For example, let’s say that interfaces Fa0/4, Fa0/5, Fa0/6, Fa0/7, and Fa0/8 need to have the same description. We don’t need to enter the subinterface mode of each interface separately to configure the description – we can use the interface range Fa0/4 – 8 command and then execute the description command:

SW1(config)#interface range Fa0/4 - 8
SW1(config-if-range)#description END_HOSTS

The description parameter will be applied to all interfaces in the specified range:

SW1#show running-config
Building configuration...
...
Current configuration : 1157 bytes
interface FastEthernet0/3
!
interface FastEthernet0/4
description END_HOSTS
!
interface FastEthernet0/5
description END_HOSTS
!
interface FastEthernet0/6
description END_HOSTS
!
interface FastEthernet0/7
description END_HOSTS
!
interface FastEthernet0/8
description END_HOSTS
!
interface FastEthernet0/9
!
....

Prerequisites for 200-301

200-301 is a single exam, consisting of about 120 questions. It covers a wide range of topics, such as routing and switching, security, wireless networking, and even some programming concepts. As with other Cisco certifications, you can take it at any of the Pearson VUE certification centers.

The recommended training program that can be taken at a Cisco academy is called Implementing and Administering Cisco Solutions (CCNA). The successful completion of a training course will get you a training badge.

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