The novice is ready to learn CCNA, but found that CCNA different subject codes are different.
Such as CCENT 100-105, CCENT 200-105, CCNA security 210-260 and so on.
Every item must be tested, or does the CCNA 200-125 exam include the above?
Also, the CCNA 200-125 exam can be used in the seventh edition of the study guide 640-802. Why are their codes different?