I haven't, I'm taking it December when I can take it for free after my class series finishes up.
I worked with Cisco routers and switches for years in the Army and got a CompTIA Network+ cert from the Army.
Personally to me the books over complicate shit.
For me I find learning all of the basics and how to find shit when your actually working in a router or switch. For the tests study the actual test. You can find CCNA test answers online. There's like 200 questions and they select 50 from the pool. Study that shit and cheat bruh.
In Cisco if you know how to do slightly above basic level shit you can easily do complex shit because you have resources everywhere.
I worked with Cisco routers and switches for years in the Army and got a CompTIA Network+ cert from the Army.
Personally to me the books over complicate shit.
For me I find learning all of the basics and how to find shit when your actually working in a router or switch. For the tests study the actual test. You can find CCNA test answers online. There's like 200 questions and they select 50 from the pool. Study that shit and cheat bruh.
In Cisco if you know how to do slightly above basic level shit you can easily do complex shit because you have resources everywhere.