Nnukwu nkwenye, dị ka onye na-arụ ọrụ na netwọk, nke CCNA certification mgbe ọ dị iche na ihe ọ bụla ọzọ asambodo na-eme ka ọ bụrụ nzube n'azụ arịrịọ ahụ. 
Nnukwu nkwenye, di ka onye na-aru oru na netwok, nke CCNA certification mgbe o di iche na ihe o bula ozo asambodo na-eme ka o buru nzube n'azu aririo ahu. 