Hey guys quick question here. I am reading the newly printed CCENT/CCNA ICND 100-101 book by Wendell Odom. It mentions here that the exam and CCNA certification primerely focuses on TCP/IP model. However watching Brian McGahan's video I learned that OSI model is most commonly used and TCP/IP is briefly explained as well as discussed. I can't figure out which of the 2 statements are true? Though I understand that both perform same work in the network using similar protocols but which model should one focus mainly on for the exam purpose? If anyone may know the answer to my question pls reply and thank you for your help.
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