Implementing Secure Converged Wide Area Networks，是CCNP的考試之一，編號642-825，內容包括：描述基本的 VoIP 網絡的實施學習關於擁塞網絡的優化思想；學習實施集成的 QoS 服務特性；學習實施 QoS 的自動配置；學習優化 WLAN 的管理和安全。目前考取最新CCNP有兩種方案：方案1:640-901 + 642-812 + 642-825 + 642-845；方案2:642-892 + 642-825 + 642-845。CCNP 持有者有安裝和配置 100 到 500 個或者更多節點的網絡和排查故障的能力；能夠管理核心網絡的運作，以及綜合應用網絡邊緣的集成語音，無線以及安全方面的內容。
部份考試內容如下：

1. Which two statements about common network attacks are true? (Choose two.)
Select 2 response(s).
A. Access attacks can consist of password attacks, trust exploitation, port redirection, and
man-in-the-middle attacks.
B. Access attacks can consist of password attacks, ping sweeps, port scans, and man-in-the-middle
attacks.
C. Access attacks can consist of packet sniffers, ping sweeps, port scans, and man-in-the-middle attacks.
D. Reconnaissance attacks can consist of password attacks, trust exploitation, port redirection and
Internet information queries.
E. Reconnaissance attacks can consist of packet sniffers, port scans, ping sweeps, and Internet
information queries.
F. Reconnaissance attacks can consist of ping sweeps, port scans, man-in-middle attacks and Internet
information queries.
Answer: AE
2. Which three statements are correct about MPLS-based VPNs? (Choose three.)
Select 3 response(s).
A. Route Targets (RTs) are attributes attached to a VPNv4 BGP route to indicate its VPN membership.
B. Scalability becomes challenging for a very large, fully meshed deployment.
C. Authentication is done using a digital certificate or pre-shared key.
D. A VPN client is required for client-initiated deployments.
E. A VPN client is not required for users to interact with the network.
F. An MPLS-based VPN is highly scalable because no site-to-site peering is required.
Answer: AEF