{"id":13670,"date":"2026-09-16T10:16:12","date_gmt":"2026-09-16T10:16:12","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=13670"},"modified":"2026-09-16T10:16:12","modified_gmt":"2026-09-16T10:16:12","slug":"cisco-ccde-400-007-practice-test-questions-and-exam-dumps-part13-q241-260","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/cisco-ccde-400-007-practice-test-questions-and-exam-dumps-part13-q241-260\/","title":{"rendered":"Cisco CCDE 400-007 Practice Test Questions and Exam Dumps Part13 Q241-260"},"content":{"rendered":"

<\/h1>\n

View Full <\/b>Cisco CCDE 400-007 Exam Dumps<\/b><\/a> and Practice Test Dumps.<\/b><\/h2>\n

 <\/p>\n

Question 241<\/b><\/h3>\n

A network architect is designing an enterprise WAN where branches need direct Internet access while corporate applications must continue using private WAN connectivity. Which design capability is most appropriate?<\/b><\/p>\n

    \n
  1. Local Internet breakout<\/span><\/li>\n
  2. Layer 2 tunneling only<\/span><\/li>\n
  3. Static ARP<\/span><\/li>\n
  4. STP root placement<\/span><\/li>\n<\/ol>\n

    Correct Answer: 1<\/b><\/p>\n

    Explanation<\/b><\/h3>\n

    Local Internet breakout allows branch offices to access Internet-based applications directly instead of sending all Internet traffic through a central headquarters or data center. This can reduce WAN bandwidth consumption and improve performance for cloud and SaaS applications. Security policies such as firewalls, secure web gateways, or cloud security services can be applied to protect the locally originated Internet traffic. Layer 2 tunneling, static ARP, and STP root placement do not provide distributed Internet access. Local Internet breakout is therefore an appropriate capability for a modern distributed WAN architecture.<\/span><\/p>\n

    Question 242<\/b><\/h3>\n

    An enterprise is using OSPF and wants to prevent external routes from unnecessarily entering a particular area. Which OSPF area type can be used to limit external route advertisements?<\/b><\/p>\n

      \n
    1. Backbone area<\/span><\/li>\n
    2. Stub area<\/span><\/li>\n
    3. Transit VLAN<\/span><\/li>\n
    4. Broadcast domain<\/span><\/li>\n<\/ol>\n

      Correct Answer: 2<\/b><\/p>\n

      Explanation<\/b><\/h3>\n

      A stub OSPF area can reduce the amount of external routing information that must be maintained within the area. Instead of receiving individual external routes, routers inside the stub area can use a default route toward the appropriate exit point. This can reduce routing-table size and simplify the routing design. The backbone area provides inter-area connectivity, while VLANs and broadcast domains are not OSPF area types. Stub areas are particularly useful when routers within an area do not need detailed information about external destinations and only require a path toward external networks.<\/span><\/p>\n

      Question 243<\/b><\/h3>\n

      A company needs to connect two geographically separated data centers and wants to maintain Layer 3 routing between them while allowing applications to communicate across sites. Which design is generally preferred for scalability?<\/b><\/p>\n

        \n
      1. Large Layer 2 stretch across all sites<\/span><\/li>\n
      2. Layer 3 data center interconnect<\/span><\/li>\n
      3. Single broadcast domain between sites<\/span><\/li>\n
      4. Permanent STP blocking between sites<\/span><\/li>\n<\/ol>\n

        Correct Answer: 2<\/b><\/p>\n

        Explanation<\/b><\/h3>\n

        A Layer 3 data center interconnect provides routed connectivity between geographically separated data centers without extending large Layer 2 broadcast domains across the interconnection. This approach generally improves failure isolation, scalability, and operational simplicity. Applications can communicate between sites through normal IP routing while each data center maintains its own Layer 2 domains. Large Layer 2 extensions can increase broadcast traffic and expand the scope of certain failures. A Layer 3 inter-site architecture is therefore commonly preferred when applications do not specifically require Layer 2 adjacency between data centers.<\/span><\/p>\n

        Question 244<\/b><\/h3>\n

        A network administrator needs to identify whether a BGP route was learned from an internal or external BGP peer. Which characteristic is most directly relevant?<\/b><\/p>\n

          \n
        1. AS relationship<\/span><\/li>\n
        2. Ethernet VLAN number<\/span><\/li>\n
        3. MAC address type<\/span><\/li>\n
        4. OSPF area ID<\/span><\/li>\n<\/ol>\n

          Correct Answer: 1<\/b><\/p>\n

          Explanation<\/b><\/h3>\n

          The autonomous-system relationship between BGP peers determines whether the session is iBGP or eBGP. Internal BGP operates between routers belonging to the same autonomous system, while external BGP operates between routers in different autonomous systems. This distinction affects route propagation, next-hop handling, and routing-policy design. VLAN numbers and MAC addresses are Layer 2 concepts, while OSPF area IDs belong to OSPF. Understanding the AS relationship is therefore fundamental when determining whether a route was learned through an internal or external BGP session.<\/span><\/p>\n

          Question 245<\/b><\/h3>\n

          An organization wants to protect the routing control plane from excessive traffic generated toward routing protocol processes. Which architectural approach should be considered?<\/b><\/p>\n

            \n
          1. Control-plane protection<\/span><\/li>\n
          2. Increasing VLAN count<\/span><\/li>\n
          3. Disabling route filtering<\/span><\/li>\n
          4. Extending broadcast domains<\/span><\/li>\n<\/ol>\n

            Correct Answer: 1<\/b><\/p>\n

            Explanation<\/b><\/h3>\n

            Control-plane protection mechanisms help protect routing and management processes from excessive or unwanted traffic. Depending on the platform, techniques such as Control Plane Policing can classify and rate-limit traffic destined for the control plane. This helps preserve CPU resources for legitimate routing operations during abnormal traffic conditions. Increasing the number of VLANs or extending broadcast domains does not directly protect routing processes. Disabling route filtering could increase exposure to unwanted routes. Control-plane protection is therefore an important architectural consideration for maintaining routing stability during high or abnormal traffic conditions.<\/span><\/p>\n

            Question 246<\/b><\/h3>\n

            A company needs to ensure that a particular route is never accepted from an external BGP neighbor, even if the neighbor advertises it. Which policy mechanism is appropriate?<\/b><\/p>\n

              \n
            1. Prefix filtering<\/span><\/li>\n
            2. ECMP<\/span><\/li>\n
            3. HSRP<\/span><\/li>\n
            4. LACP<\/span><\/li>\n<\/ol>\n

              Correct Answer: 1<\/b><\/p>\n

              Explanation<\/b><\/h3>\n

              Prefix filtering can explicitly deny selected prefixes received from a BGP neighbor. A prefix list or equivalent routing policy can specify exact prefixes or prefix ranges that should be rejected. This is an important protection against accidental route advertisements, unauthorized prefixes, and route leaks. ECMP provides multipath forwarding, HSRP provides first-hop redundancy, and LACP aggregates physical links. Since the requirement specifically involves controlling which routes are accepted from a BGP neighbor, prefix filtering is the appropriate mechanism. Proper filtering should be applied consistently to external routing sessions.<\/span><\/p>\n

              Question 247<\/b><\/h3>\n

              A data center fabric needs a highly scalable Layer 3 underlay that provides multiple equal-cost paths between leaf and spine switches. Which routing approach is commonly suitable?<\/b><\/p>\n

                \n
              1. Static routes only<\/span><\/li>\n
              2. IGP with ECMP<\/span><\/li>\n
              3. STP-only forwarding<\/span><\/li>\n
              4. Single default route<\/span><\/li>\n<\/ol>\n

                Correct Answer: 2<\/b><\/p>\n

                Explanation<\/b><\/h3>\n

                A modern leaf-and-spine data center fabric commonly uses an IGP such as OSPF or IS-IS in the underlay together with ECMP. Each leaf can establish routed connections to multiple spine switches, creating multiple equal-cost paths through the fabric. ECMP allows traffic to use these paths efficiently and provides redundancy if a link or device fails. Static routes can become difficult to manage as the fabric grows, while STP is primarily intended for Layer 2 loop prevention. A single default route would not provide the required multipath connectivity. IGP with ECMP is therefore appropriate.<\/span><\/p>\n

                Question 248<\/b><\/h3>\n

                An enterprise wants to exchange only selected routes between two VRFs rather than allowing complete connectivity between their routing tables. Which technique should be used?<\/b><\/p>\n

                  \n
                1. Controlled route leaking<\/span><\/li>\n
                2. Full route redistribution without filtering<\/span><\/li>\n
                3. Global broadcast<\/span><\/li>\n
                4. STP tunneling<\/span><\/li>\n<\/ol>\n

                  Correct Answer: 1<\/b><\/p>\n

                  Explanation<\/b><\/h3>\n

                  Controlled route leaking allows selected routes to be imported between separate VRFs according to explicitly defined policies. This is useful when isolated business units or tenants need access to shared services such as DNS, authentication, monitoring, or specific applications. Depending on the architecture, route targets, route policies, prefix lists, or other filtering mechanisms can control which routes are exchanged. Full unrestricted redistribution would weaken the intended segmentation. Broadcast and STP mechanisms do not provide Layer 3 VRF route-sharing control. Controlled route leaking therefore provides the required combination of segmentation and selective connectivity.<\/span><\/p>\n

                  Question 249<\/b><\/h3>\n

                  A service provider uses MPLS Layer 3 VPNs and needs to distinguish routes belonging to different customers even when their IPv4 prefixes overlap. Which BGP address family is commonly used to carry these uniquely identified VPN routes?<\/b><\/p>\n

                    \n
                  1. IPv4 unicast<\/span><\/li>\n
                  2. VPNv4<\/span><\/li>\n
                  3. IPv6 link-local<\/span><\/li>\n
                  4. Ethernet switching<\/span><\/li>\n<\/ol>\n

                    Correct Answer: 2<\/b><\/p>\n

                    Explanation<\/b><\/h3>\n

                    VPNv4 is a BGP address family used to carry IPv4 VPN routes across an MPLS Layer 3 VPN infrastructure. The customer’s IPv4 prefix is combined with a Route Distinguisher to create a unique VPNv4 route. This allows multiple customers to use overlapping address spaces without causing conflicts in the provider’s VPN routing infrastructure. Route Targets are then used to control which VPN routes are imported into particular VRFs. IPv4 unicast alone does not provide this customer-specific uniqueness. VPNv4 is therefore the appropriate address family for this requirement.<\/span><\/p>\n

                    Question 250<\/b><\/h3>\n

                    A network architect wants to reduce the amount of routing information advertised between two areas while maintaining reachability to the summarized networks. Which technique should be used?<\/b><\/p>\n

                      \n
                    1. Route summarization<\/span><\/li>\n
                    2. Packet fragmentation<\/span><\/li>\n
                    3. MAC flooding<\/span><\/li>\n
                    4. Broadcast replication<\/span><\/li>\n<\/ol>\n

                      Correct Answer: 1<\/b><\/p>\n

                      Explanation<\/b><\/h3>\n

                      Route summarization combines multiple specific routes into a broader aggregate prefix. This reduces the number of routes advertised between routing areas and can improve scalability by decreasing routing-table size and SPF processing requirements. Summarization should be planned carefully because an overly broad summary can attract traffic toward destinations that are not actually reachable. Packet fragmentation, MAC flooding, and broadcast replication do not reduce the size of routing information. Route summarization is therefore the appropriate technique when the goal is to reduce routing advertisements while preserving reachability through an aggregate prefix.<\/span><\/p>\n

                      Question 251<\/b><\/h3>\n

                      An organization has two Internet service providers and wants to influence inbound traffic by making one advertised path appear less attractive to external networks. Which BGP technique can be used?<\/b><\/p>\n

                        \n
                      1. Local Preference<\/span><\/li>\n
                      2. AS-path prepending<\/span><\/li>\n
                      3. HSRP<\/span><\/li>\n
                      4. LACP<\/span><\/li>\n<\/ol>\n

                        Correct Answer: 2<\/b><\/p>\n

                        Explanation<\/b><\/h3>\n

                        AS-path prepending can be used to influence inbound traffic by adding additional copies of the organization’s AS number to an advertised BGP route. A longer AS path can make that advertisement less attractive to neighboring autonomous systems when other path-selection factors are equal. This is primarily an inbound traffic-engineering technique. Local Preference is normally used to influence outbound path selection within an autonomous system. HSRP provides gateway redundancy, while LACP provides link aggregation. Therefore, AS-path prepending is appropriate when an organization wants to make one external path less attractive for inbound traffic.<\/span><\/p>\n

                        Question 252<\/b><\/h3>\n

                        A company wants routers to quickly detect a forwarding-path failure without waiting for normal routing protocol timers to expire. Which technology should be deployed?<\/b><\/p>\n

                          \n
                        1. BFD<\/span><\/li>\n
                        2. DHCP<\/span><\/li>\n
                        3. NAT<\/span><\/li>\n
                        4. DNS<\/span><\/li>\n<\/ol>\n

                          Correct Answer: 1<\/b><\/p>\n

                          Explanation<\/b><\/h3>\n

                          Bidirectional Forwarding Detection provides rapid detection of failures in the forwarding path between network devices. BFD can operate with routing protocols and notify them when a path becomes unavailable, allowing faster convergence than waiting for normal routing protocol hold or dead timers. This is particularly useful in environments where fast recovery is important, such as data centers, service-provider networks, and critical WAN connections. DHCP provides address configuration, NAT performs address translation, and DNS resolves names. BFD is therefore the appropriate technology for rapid forwarding-path failure detection.<\/span><\/p>\n

                          Question 253<\/b><\/h3>\n

                          A data center architect wants to separate tenant networks while using a common physical IP underlay. Which technology provides logical Layer 2 segmentation across the routed underlay?<\/b><\/p>\n

                            \n
                          1. VXLAN<\/span><\/li>\n
                          2. STP<\/span><\/li>\n
                          3. HSRP<\/span><\/li>\n
                          4. PPP<\/span><\/li>\n<\/ol>\n

                            Correct Answer: 1<\/b><\/p>\n

                            Explanation<\/b><\/h3>\n

                            VXLAN provides logical Layer 2 network segmentation over a Layer 3 IP underlay. Each VXLAN segment is identified using a VXLAN Network Identifier, allowing many isolated logical networks to share the same physical infrastructure. This approach provides much greater segmentation scalability than traditional VLANs and is commonly used in modern data center fabrics. STP prevents Layer 2 loops, HSRP provides gateway redundancy, and PPP is a point-to-point protocol. VXLAN therefore directly addresses the requirement to provide tenant Layer 2 segmentation across a shared routed infrastructure.<\/span><\/p>\n

                            Question 254<\/b><\/h3>\n

                            A network uses BGP and wants to identify routes belonging to a particular customer so that different routing policies can be applied to them. Which feature is suitable?<\/b><\/p>\n

                              \n
                            1. BGP communities<\/span><\/li>\n
                            2. STP priority<\/span><\/li>\n
                            3. OSPF cost only<\/span><\/li>\n
                            4. Ethernet MTU<\/span><\/li>\n<\/ol>\n

                              Correct Answer: 1<\/b><\/p>\n

                              Explanation<\/b><\/h3>\n

                              BGP communities allow routes to be tagged with policy information. An administrator can assign a community value to customer routes and then use that tag in routing policies to control advertisements, path selection, or other routing behavior. This provides a scalable way to classify routes without creating individual policies for every prefix. STP priority influences Layer 2 spanning-tree elections, OSPF cost applies to OSPF path selection, and Ethernet MTU affects packet size. BGP communities are therefore well suited for identifying groups of routes and applying consistent routing policies.<\/span><\/p>\n

                              Question 255<\/b><\/h3>\n

                              An enterprise needs to connect multiple branches using several WAN transports and dynamically select paths based on application requirements and link performance. Which solution provides this capability?<\/b><\/p>\n

                                \n
                              1. SD-WAN<\/span><\/li>\n
                              2. STP<\/span><\/li>\n
                              3. VLAN trunking<\/span><\/li>\n
                              4. Static ARP<\/span><\/li>\n<\/ol>\n

                                Correct Answer: 1<\/b><\/p>\n

                                Explanation<\/b><\/h3>\n

                                SD-WAN provides centralized policy-based control over multiple WAN transports such as MPLS, broadband, and LTE. It can use application classification and measured network characteristics such as latency, jitter, packet loss, and availability to select appropriate paths according to configured policies. This allows critical applications to receive suitable connectivity while less sensitive traffic can use other available links. STP is designed for Layer 2 loop prevention, VLAN trunking carries multiple VLANs, and static ARP maps IP addresses to MAC addresses. SD-WAN directly addresses dynamic application-aware WAN path selection.<\/span><\/p>\n

                                Question 256<\/b><\/h3>\n

                                A network architect wants to prevent a routing failure in one part of the network from propagating unnecessary topology changes throughout the entire routing domain. Which design principle is most relevant?<\/b><\/p>\n

                                  \n
                                1. Failure-domain isolation<\/span><\/li>\n
                                2. Global Layer 2 extension<\/span><\/li>\n
                                3. Single-path design<\/span><\/li>\n
                                4. Centralized switching<\/span><\/li>\n<\/ol>\n

                                  Correct Answer: 1<\/b><\/p>\n

                                  Explanation<\/b><\/h3>\n

                                  Failure-domain isolation limits the scope of failures and their associated control-plane effects. Routing areas, hierarchical boundaries, summarized routes, and carefully designed topology boundaries can help prevent a local failure from causing unnecessary changes throughout the entire network. This improves stability and can reduce convergence workload. Extending a single Layer 2 domain across the network can increase the scope of certain failures, while single-path designs reduce redundancy. Centralized switching may also create dependencies. Failure-domain isolation is therefore an important principle for scalable and resilient network architecture.<\/span><\/p>\n

                                  Question 257<\/b><\/h3>\n

                                  An organization needs to ensure that a BGP route is advertised to one peer but not to another peer. Which mechanism can provide this granular control?<\/b><\/p>\n

                                    \n
                                  1. Per-neighbor routing policy<\/span><\/li>\n
                                  2. Increasing interface bandwidth<\/span><\/li>\n
                                  3. Changing the OSPF router ID<\/span><\/li>\n
                                  4. Enabling DHCP snooping<\/span><\/li>\n<\/ol>\n

                                    Correct Answer: 1<\/b><\/p>\n

                                    Explanation<\/b><\/h3>\n

                                    Per-neighbor routing policies allow an administrator to apply different inbound or outbound rules to individual BGP peers. Prefix lists, route maps, communities, and other policy mechanisms can determine which routes are advertised to each neighbor. This is essential when different providers, customers, or peers should receive different routing information. Increasing bandwidth does not control route advertisements, OSPF router IDs are unrelated to BGP advertisement policy, and DHCP snooping provides Layer 2 security. Per-neighbor routing policy therefore provides the required granular control.<\/span><\/p>\n

                                    Question 258<\/b><\/h3>\n

                                    A service provider needs to exchange VPN routes between PE routers while maintaining customer separation. Which protocol is commonly used as the VPN control plane?<\/b><\/p>\n

                                      \n
                                    1. MP-BGP<\/span><\/li>\n
                                    2. STP<\/span><\/li>\n
                                    3. LACP<\/span><\/li>\n
                                    4. ARP<\/span><\/li>\n<\/ol>\n

                                      Correct Answer: 1<\/b><\/p>\n

                                      Explanation<\/b><\/h3>\n

                                      Multiprotocol BGP is commonly used as the control plane for MPLS Layer 3 VPNs. PE routers use MP-BGP to exchange VPNv4 or VPNv6 routes, including the information needed to identify customer VPNs and control route distribution. Route Distinguishers provide uniqueness for overlapping prefixes, while Route Targets control route import and export. STP is used for Layer 2 loop prevention, LACP provides link aggregation, and ARP resolves IPv4 addresses to MAC addresses. MP-BGP therefore provides the required scalable VPN route-exchange mechanism.<\/span><\/p>\n

                                      Question 259<\/b><\/h3>\n

                                      A company wants multiple physical links between two switches to provide redundancy and operate as one logical interface. Which technology is appropriate?<\/b><\/p>\n

                                        \n
                                      1. LACP<\/span><\/li>\n
                                      2. BGP<\/span><\/li>\n
                                      3. OSPF<\/span><\/li>\n
                                      4. BFD<\/span><\/li>\n<\/ol>\n

                                        Correct Answer: 1<\/b><\/p>\n

                                        Explanation<\/b><\/h3>\n

                                        LACP allows multiple physical Ethernet links to be dynamically bundled into a single logical port-channel. This provides redundancy because traffic can continue through remaining links if one member fails. It can also increase aggregate bandwidth when traffic is distributed across multiple physical members according to the platform’s load-balancing algorithm. BGP and OSPF are routing protocols, while BFD provides rapid failure detection. LACP is therefore the appropriate technology when multiple physical switch-to-switch links need to operate as one logical connection with redundancy and link aggregation.<\/span><\/p>\n

                                        Question 260<\/b><\/h3>\n

                                        A network architect is designing a multi-tenant environment where each tenant must have an independent routing table, but selected shared services should remain accessible. Which design provides this functionality?<\/b><\/p>\n

                                          \n
                                        1. Single global routing table<\/span><\/li>\n
                                        2. VRF with controlled route leaking<\/span><\/li>\n
                                        3. One shared VLAN for all tenants<\/span><\/li>\n
                                        4. Unrestricted Layer 2 bridging<\/span><\/li>\n<\/ol>\n

                                          Correct Answer: 2<\/b><\/p>\n

                                          Explanation<\/b><\/h3>\n

                                          VRFs provide independent routing tables for different tenants, allowing overlapping IP addressing and strong logical separation. When tenants need access to common services such as DNS, authentication, monitoring, or shared applications, controlled route leaking can selectively expose only the required prefixes. This maintains segmentation while supporting explicitly authorized communication. A single global routing table removes the routing separation, while a shared VLAN or unrestricted Layer 2 bridging weakens tenant isolation. VRF-based segmentation combined with carefully controlled route leaking is therefore suitable for multi-tenant network architectures.<\/span><\/p>\n

                                           <\/p>\n","protected":false},"excerpt":{"rendered":"

                                          View Full Cisco CCDE 400-007 Exam Dumps and Practice Test Dumps.   Question 241 A network architect is designing an enterprise WAN where branches need direct Internet access while corporate applications must continue using private WAN connectivity. Which design capability is most appropriate? Local Internet breakout Layer 2 tunneling only Static ARP STP root placement […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1648,1647],"tags":[],"_links":{"self":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/13670"}],"collection":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/comments?post=13670"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/13670\/revisions"}],"predecessor-version":[{"id":13685,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/13670\/revisions\/13685"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=13670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=13670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=13670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}