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Awọn iṣowo / Awọn kupọọnu Cisco Systems Cisco Systems Inc tun ṣe onigbọwọ laini awọn iwe -ẹri ọjọgbọn IT fun awọn ọja Sisiko. Awọn ipele ijẹrisi marun wa: Titẹsi (CCENT), Alabaṣepọ (CCNA/CCDA), Ọjọgbọn (CCNP/CCDP), Onimọran (CCIE/CCDE) ati Onitumọ laipe, bakanna pẹlu awọn ọna oriṣiriṣi mẹsan, Itọsọna ...
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