What are two differences between the Cisco IOS 12 and IOS 15 versions? (Choose two.)

IT Questions BankCategory: CCNAWhat are two differences between the Cisco IOS 12 and IOS 15 versions? (Choose two.)
What are two differences between the Cisco IOS 12 and IOS 15 versions? (Choose two.) 1ITExamAnswers Staff asked 9 months ago

What are two differences between the Cisco IOS 12 and IOS 15 versions? (Choose two.)

  • Every Cisco ISR G2 platform router includes a universal image in the IOS 12 versions, but not the IOS 15 versions.
  • The IOS version 15 license key is unique to each device, whereas the IOS version 12 license key is not device specific.
  • The IOS 12 version has two trains that occur simultaneously, whereas the IOS 15 version still has two trains, but the versions occur in a single sequential order.
  • The IOS 12 version has commands that are not available in the 15 version.
  • IOS version 12.4(20)T1 is a mainline release, whereas IOS version 15.1(1)T1 is a new feature release.

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