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To be honest, I'm so confused these 400-007 questions... some of the questions would be not common sense to me. maybe not.😅 What do you think about the above two hardening questions? any idea?

Yes, you are partially correct. I meant... Please have a look the "Introduction to Controller-Based Networking" in CiscoPress. they explain very well..... For perspective, the following list details some of the more common actions that a networking device does that fit into the data plane: De-encapsulating and re-encapsulating a packet in a data-link frame (routers, Layer 3 switches) Adding or removing an 802.1Q trunking header (routers and switches) Matching an Ethernet frame’s destination Media Access Control (MAC) address to the MAC address table (Layer 2 switches) Matching an IP packet’s destination IP address to the IP routing table (routers, Layer 3 switches) Encrypting the data and adding a new IP header (for virtual private network [VPN] processing) Changing the source or destination IP address (for Network Address Translation [NAT] processing) Discarding a message due to a filter (access control lists [ACLs], port security) All the items in the list make up the data plane, because the data plane includes all actions done per message. So below items are all related data plane actions.... A. matching the destination IP address of an IP packet to the IP routing table C. Matching the destination MAC address of an ethernet frame to the MAC address table D. de-encapsulating and re-encapsulating a packet in a data-link frame And.. the "IPv6 Neighbor Discovery Protocol (NDP)" is more common control plane protocol.

Just my short knowledge is.... The data plane is the forwarding plane, which is responsible for the switching of packets through the router and switch. There are features that could affect packet forwardings such as QoS and ACLs... and included encapsulating, encrypting, and matching IP and MAC as well. the control plane is responsible for maintaining sessions and exchanging protocol information with other routers or network devices. IPv6 Neighbor Discovery Protocol (NDP) is one of the common control plane protocols. so the correct answer is "B" Referenace : [Hidden Content]

couldn't understand... which three items do you recommend for control plane hardening of the infrastructure device? (Choose three) A. redundant AAA service : Management Plane B. control plane policy: Control Plane C. warning banners : Management Plane D. to enable unused services : ??? E. SNMPv3 : Management Plane F. routing protocol authentication: Control Plane AAnd which two data plane hardening techniques are true? (Choose two) A. Warning banners: Management Plane B. Redundant AAA servers: Management Plane C. Control plane policing : Control Plane D. SNMPv3: Management Plane E. Infrastructure ACLs: Data Plane F. Disable unused services: Management Plane G. Routing protocol authentication : Control Plane Reference: [Hidden Content]

I couldn't find you ID you can add my ID. Leejaeyo

I'm interested in the GB with CD for CCDE, Please add me skype ID "leejaeyo" if you have the CD... or anyone interested, Let's get it together. the pdf would be just $300. please add me or let me know your skype ID. or visit [Hidden Content] Apparently the CD is updated on 10 Jan. cheers

hmmm I'm gonna buy the Chinese Dumps today. but the Livechat is not responding and refused my calling... I can't trust this CD site.

Can anyone help to understand the DWDM question? I could be existing optical infra and built-in protection service? how about the answer are B,E? Which two options describe the advantages of using DWDM over traditional optical networks? (Choose two) A. Inherent topology flexibility with intelligent chromatic dispersion B. Inherent topology flexibility and service protection provided without penalty through intelligent oversubscription of bandwidth reservation C. Inherent topology flexibility with built-in service protection D. Inherent topology flexibility with a service protection provided through a direct integration with an upper layer protocol E. Ability to expand bandwidth over existing optical infrastructure

I'm still wondering this quetion... anyone has the perfect answer?

@Certguy05 Can you share it? Thank you in advanced.

I can't download the link. Can you share the PDF file?

I'm wondering it is still valid? not enough to pass? if anyone has a PDF file, Can you share it? Thanks