Thus, certification is an important issue in information security field.
可见，认证技术在信息安全领域具有举足重轻的地位。
Do you have CCNA certification and want to take the next step in network security?
你是否具备CCNA证书并且想进步深入了解网络安全。
Do you have CCNA certification and want to take the next step in network security?
你是否具备CCNA证书并且想进步深入了解网络安全。
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