{"id":13666,"date":"2026-09-16T10:17:45","date_gmt":"2026-09-16T10:17:45","guid":{"rendered":"https:\/\/www.examlabs.com\/certification\/?p=13666"},"modified":"2026-09-16T10:17:45","modified_gmt":"2026-09-16T10:17:45","slug":"cisco-ccde-400-007-practice-test-questions-and-exam-dumps-part9-q161-180","status":"publish","type":"post","link":"https:\/\/www.examlabs.com\/certification\/cisco-ccde-400-007-practice-test-questions-and-exam-dumps-part9-q161-180\/","title":{"rendered":"Cisco CCDE 400-007 Practice Test Questions and Exam Dumps Part9 Q161-180"},"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 161<\/b><\/h3>\n

A network architect is designing an enterprise WAN with multiple transport providers and wants to select paths based on application requirements and real-time link conditions. Which technology is most suitable for this design?<\/b><\/p>\n

    \n
  1. Traditional STP<\/span><\/li>\n
  2. Static routing<\/span><\/li>\n
  3. SD-WAN<\/span><\/li>\n
  4. Layer 2 tunneling<\/span><\/li>\n<\/ol>\n

    Correct Answer: 3<\/b><\/p>\n

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

    SD-WAN provides centralized policy-based control over multiple WAN transports. It can evaluate characteristics such as latency, jitter, packet loss, availability, and application requirements when selecting forwarding paths. This allows organizations to use different WAN connections while applying consistent traffic-engineering policies. Static routing does not dynamically adapt to application or link conditions, while STP is designed for Layer 2 loop prevention. Layer 2 tunneling can transport Ethernet traffic but does not inherently provide the centralized application-aware path-selection capabilities associated with SD-WAN.<\/span><\/p>\n

    Question 162<\/b><\/h3>\n

    An organization has several BGP routes to the same destination and wants to prefer one route for outbound traffic within its autonomous system. Which attribute should be configured with a higher value on the preferred route?<\/b><\/p>\n

      \n
    1. MED<\/span><\/li>\n
    2. Local Preference<\/span><\/li>\n
    3. Origin<\/span><\/li>\n
    4. AS Path length<\/span><\/li>\n<\/ol>\n

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

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

      Local Preference is used to influence outbound path selection within an autonomous system. BGP prefers the route with the highest Local Preference value, allowing administrators to designate a preferred exit point. The attribute is distributed through iBGP, making it useful for maintaining consistent outbound routing decisions across multiple internal routers. MED is generally used to influence inbound path selection by a neighboring autonomous system. Origin and AS Path are also considered during BGP path selection, but Local Preference is the standard mechanism for controlling internal outbound preference.<\/span><\/p>\n

      Question 163<\/b><\/h3>\n

      A data center design requires Layer 2 connectivity between workloads while the physical network uses a Layer 3 routed underlay. Which technology provides this overlay capability?<\/b><\/p>\n

        \n
      1. HSRP<\/span><\/li>\n
      2. OSPF<\/span><\/li>\n
      3. VXLAN<\/span><\/li>\n
      4. DHCP<\/span><\/li>\n<\/ol>\n

        Correct Answer: 3<\/b><\/p>\n

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

        VXLAN provides Layer 2 network virtualization over a Layer 3 IP underlay. Ethernet frames are encapsulated within VXLAN packets and transported between VXLAN Tunnel Endpoints across the routed infrastructure. This design allows Layer 2 segments to span a Layer 3 fabric without extending traditional VLANs throughout the physical network. VXLAN can also provide a much larger segmentation space through its VNI identifier. HSRP provides gateway redundancy, OSPF provides IP routing, and DHCP provides host configuration services. VXLAN is therefore appropriate for this overlay requirement.<\/span><\/p>\n

        Question 164<\/b><\/h3>\n

        A network contains multiple routing domains and the architect needs to prevent routes from being redistributed back into their original routing protocol. Which mechanism can provide route-source identification?<\/b><\/p>\n

          \n
        1. Route tagging<\/span><\/li>\n
        2. ECMP<\/span><\/li>\n
        3. NAT<\/span><\/li>\n
        4. LACP<\/span><\/li>\n<\/ol>\n

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

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

          Route tagging allows redistributed routes to be marked with an identifier representing their source or routing history. Routing policies can then examine these tags and prevent routes from being redistributed back into the protocol from which they originated. This is particularly useful in environments where multiple routing protocols exchange information. ECMP provides multipath forwarding, NAT performs address translation, and LACP aggregates physical links. Route tagging therefore provides a useful control mechanism for reducing routing loops and controlling redistribution behavior.<\/span><\/p>\n

          Question 165<\/b><\/h3>\n

          An enterprise needs to isolate two tenants that use overlapping IPv4 address spaces while sharing the same physical routers. Which technology should be used?<\/b><\/p>\n

            \n
          1. BFD<\/span><\/li>\n
          2. VRF<\/span><\/li>\n
          3. ECMP<\/span><\/li>\n
          4. HSRP<\/span><\/li>\n<\/ol>\n

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

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

            VRF creates independent routing and forwarding tables on the same physical router. Each tenant can therefore have its own routing domain, even when tenants use identical or overlapping IPv4 address ranges. This capability is widely used in service-provider networks, enterprise segmentation, and multi-tenant data centers. BFD is used for rapid failure detection, ECMP provides equal-cost multipath forwarding, and HSRP provides gateway redundancy. VRF directly addresses the requirement for logical routing isolation on shared physical infrastructure.<\/span><\/p>\n

            Question 166<\/b><\/h3>\n

            A network architect wants multiple equal-cost paths between leaf and spine switches to be used simultaneously. Which routing capability is required?<\/b><\/p>\n

              \n
            1. NAT<\/span><\/li>\n
            2. ECMP<\/span><\/li>\n
            3. PBR<\/span><\/li>\n
            4. Route filtering<\/span><\/li>\n<\/ol>\n

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

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

              Equal-Cost Multipath allows routers to install multiple routes with the same cost and use them for forwarding. In a leaf-and-spine architecture, ECMP enables traffic between different leaf switches to use multiple spine switches, improving bandwidth utilization and providing redundancy. NAT translates addresses, PBR modifies forwarding behavior based on configured policies, and route filtering controls route acceptance or advertisement. ECMP is therefore fundamental to scalable multipath forwarding in many modern data center designs.<\/span><\/p>\n

              Question 167<\/b><\/h3>\n

              A service provider wants to advertise customer VPN routes between provider edge routers using a BGP-based control plane. Which protocol extension is commonly used?<\/b><\/p>\n

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

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

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

                Multiprotocol BGP extends BGP so that it can carry routing information for address families beyond traditional IPv4 unicast. MPLS Layer 3 VPN architectures commonly use MP-BGP to distribute VPNv4 or VPNv6 routes between provider edge routers. These routes can include route distinguishers and route-target information used to maintain customer separation and control route import and export. STP handles Layer 2 loop prevention, DHCP provides address configuration, and VRRP provides first-hop redundancy. MP-BGP is therefore a key control-plane component of MPLS VPN designs.<\/span><\/p>\n

                Question 168<\/b><\/h3>\n

                A company has two WAN links and wants to automatically detect when one link becomes unavailable before changing the routing decision. Which technology can provide rapid path monitoring?<\/b><\/p>\n

                  \n
                1. BFD<\/span><\/li>\n
                2. VLAN<\/span><\/li>\n
                3. DNS<\/span><\/li>\n
                4. ARP inspection<\/span><\/li>\n<\/ol>\n

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

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

                  Bidirectional Forwarding Detection provides rapid detection of forwarding-path failures between network devices. It can operate independently of normal routing protocol timers and can notify supported routing protocols when a path becomes unavailable. This allows the network to react more quickly to failures and select an alternate path where one exists. VLANs provide Layer 2 segmentation, DNS resolves names, and ARP inspection provides security controls around ARP behavior. BFD is therefore suitable when fast failure detection is required for redundant network paths.<\/span><\/p>\n

                  Question 169<\/b><\/h3>\n

                  An enterprise wants to control which routes a BGP neighbor is allowed to advertise into its network. Which configuration mechanism should be applied to the inbound BGP policy?<\/b><\/p>\n

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

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

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

                    Prefix filtering allows an administrator to define which network prefixes are accepted from a BGP neighbor. Prefix lists and routing policies can be used to permit approved routes and reject unwanted advertisements. This is important for controlling routing-table growth and preventing accidental or inappropriate route propagation. EtherChannel provides link aggregation, HSRP provides gateway redundancy, and VXLAN provides network virtualization. Inbound prefix filtering is therefore an important BGP security and policy-control mechanism.<\/span><\/p>\n

                    Question 170<\/b><\/h3>\n

                    A network architect wants to provide redundancy for the default gateway of hosts in a VLAN. Which protocol can provide a virtual gateway address shared by multiple routers?<\/b><\/p>\n

                      \n
                    1. OSPF<\/span><\/li>\n
                    2. BGP<\/span><\/li>\n
                    3. HSRP<\/span><\/li>\n
                    4. VXLAN<\/span><\/li>\n<\/ol>\n

                      Correct Answer: 3<\/b><\/p>\n

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

                      HSRP provides first-hop gateway redundancy by allowing multiple routers to participate in a shared virtual gateway. Hosts use the virtual IP address as their default gateway rather than relying on the physical address of one router. If the active router fails, a standby router can assume the active role. OSPF and BGP are routing protocols, while VXLAN is a network virtualization technology. HSRP is therefore appropriate when the requirement is to maintain default-gateway availability for hosts in a VLAN.<\/span><\/p>\n

                      Question 171<\/b><\/h3>\n

                      A network design must continue forwarding traffic when a single physical link between two switches fails. Which solution provides both redundancy and logical link aggregation?<\/b><\/p>\n

                        \n
                      1. LACP EtherChannel<\/span><\/li>\n
                      2. NAT<\/span><\/li>\n
                      3. OSPF stub area<\/span><\/li>\n
                      4. Route reflection<\/span><\/li>\n<\/ol>\n

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

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

                        LACP can dynamically establish an EtherChannel by combining multiple physical Ethernet links into a single logical connection. If one member link fails, the remaining links can continue carrying traffic. This provides link-level redundancy while also allowing the available bandwidth of multiple links to be aggregated. NAT performs address translation, an OSPF stub area controls external routing information, and route reflection improves iBGP scalability. LACP EtherChannel directly addresses the requirement for redundant physical connectivity between switches.<\/span><\/p>\n

                        Question 172<\/b><\/h3>\n

                        A company wants to advertise the same service prefix from several geographically distributed locations so that routing can direct clients toward an available location. Which concept supports this design?<\/b><\/p>\n

                          \n
                        1. Anycast<\/span><\/li>\n
                        2. NAT<\/span><\/li>\n
                        3. Port security<\/span><\/li>\n
                        4. DHCP relay<\/span><\/li>\n<\/ol>\n

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

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

                          Anycast allows multiple locations to advertise the same IP address or prefix. Routing mechanisms can then direct traffic toward one of the available locations according to the routing topology and configured metrics. Anycast is commonly used for distributed services such as DNS and globally distributed applications. NAT translates addresses, port security controls Layer 2 access to switch ports, and DHCP relay forwards DHCP messages between different network segments. Anycast is therefore the appropriate design concept for providing a common service address from multiple locations.<\/span><\/p>\n

                          Question 173<\/b><\/h3>\n

                          A service provider needs to maintain separate customer routing tables on provider edge routers while using the same physical infrastructure. Which technology provides this logical separation?<\/b><\/p>\n

                            \n
                          1. STP<\/span><\/li>\n
                          2. VRF<\/span><\/li>\n
                          3. BFD<\/span><\/li>\n
                          4. LACP<\/span><\/li>\n<\/ol>\n

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

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

                            VRF provides separate routing and forwarding tables on the same physical device. Provider edge routers can therefore maintain independent routing information for multiple customers without requiring separate physical routers for each customer. VRFs are a fundamental component of MPLS Layer 3 VPN architectures and can also be used for enterprise segmentation and multi-tenant environments. STP provides Layer 2 loop prevention, BFD provides failure detection, and LACP provides link aggregation. VRF directly satisfies the requirement for separate customer routing tables.<\/span><\/p>\n

                            Question 174<\/b><\/h3>\n

                            A network architect wants to reduce the number of individual prefixes advertised from a branch region into the enterprise core. Which technique should be used?<\/b><\/p>\n

                              \n
                            1. Route summarization<\/span><\/li>\n
                            2. BFD<\/span><\/li>\n
                            3. HSRP<\/span><\/li>\n
                            4. Port security<\/span><\/li>\n<\/ol>\n

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

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

                              Route summarization combines multiple more-specific routes into a single aggregate prefix. Advertising a summary from a branch or regional network reduces the number of routes that need to be propagated into the core. This can reduce routing-table size, lower control-plane processing, and help limit the propagation of some topology changes. BFD is used for failure detection, HSRP provides gateway redundancy, and port security protects switch access. Route summarization is therefore the technique most directly suited to reducing the number of advertised prefixes.<\/span><\/p>\n

                              Question 175<\/b><\/h3>\n

                              An enterprise wants to prioritize voice traffic over less delay-sensitive applications when a WAN link becomes congested. Which technology should be implemented?<\/b><\/p>\n

                                \n
                              1. QoS<\/span><\/li>\n
                              2. NAT<\/span><\/li>\n
                              3. DNS<\/span><\/li>\n
                              4. ARP<\/span><\/li>\n<\/ol>\n

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

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

                                Quality of Service allows traffic to be classified and treated differently according to application or business requirements. Voice traffic is sensitive to delay, jitter, and packet loss, so QoS mechanisms such as classification, marking, queuing, and scheduling can provide appropriate treatment during congestion. QoS does not create additional bandwidth, but it determines how available bandwidth is allocated among traffic classes. NAT performs address translation, DNS provides name resolution, and ARP maps IPv4 addresses to MAC addresses. QoS is therefore the appropriate technology for prioritizing voice traffic.<\/span><\/p>\n

                                Question 176<\/b><\/h3>\n

                                A company wants to use different forwarding paths for specific source networks while keeping the normal destination-based routing table unchanged. Which technology can accomplish this?<\/b><\/p>\n

                                  \n
                                1. Policy-Based Routing<\/span><\/li>\n
                                2. Route summarization<\/span><\/li>\n
                                3. STP<\/span><\/li>\n
                                4. BFD<\/span><\/li>\n<\/ol>\n

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

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

                                  Policy-Based Routing allows forwarding decisions to be based on traffic characteristics such as source address, destination address, protocol, or other supported matching criteria. This makes it possible to direct selected source networks through a specific next hop without changing the normal destination-based routing table. Route summarization reduces routing information, STP manages Layer 2 loop prevention, and BFD provides rapid failure detection. PBR is therefore appropriate when selected traffic needs to follow a forwarding policy different from the normal routing decision.<\/span><\/p>\n

                                  Question 177<\/b><\/h3>\n

                                  A network architect wants to reduce the number of iBGP sessions required in a large autonomous system. Which technology should be deployed?<\/b><\/p>\n

                                    \n
                                  1. Route reflector<\/span><\/li>\n
                                  2. NAT gateway<\/span><\/li>\n
                                  3. HSRP<\/span><\/li>\n
                                  4. VXLAN tunnel<\/span><\/li>\n<\/ol>\n

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

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

                                    BGP route reflection reduces the requirement for a full-mesh iBGP topology. Instead of every internal BGP router establishing a session with every other router, selected routers act as route reflectors and distribute routes to their clients. This significantly improves BGP scalability as the number of routers increases. Route reflectors should be deployed with appropriate redundancy and carefully planned client relationships. NAT gateways, HSRP, and VXLAN tunnels serve different purposes and do not directly solve the iBGP session-scaling problem.<\/span><\/p>\n

                                    Question 178<\/b><\/h3>\n

                                    A network must transport Ethernet traffic between two locations across an IP-based infrastructure while preserving Layer 2 connectivity. Which technology is designed for Layer 2-over-Layer 3 encapsulation in modern data center networks?<\/b><\/p>\n

                                      \n
                                    1. VXLAN<\/span><\/li>\n
                                    2. HSRP<\/span><\/li>\n
                                    3. OSPF<\/span><\/li>\n
                                    4. DHCP<\/span><\/li>\n<\/ol>\n

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

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

                                      VXLAN encapsulates Layer 2 Ethernet frames inside UDP packets so that they can traverse a Layer 3 IP underlay. This allows Layer 2 segments to extend across routed infrastructure while maintaining scalable network segmentation. VXLAN is commonly combined with EVPN for control-plane learning and distribution of MAC and IP reachability information. HSRP provides gateway redundancy, OSPF performs IP routing, and DHCP provides host configuration. VXLAN is therefore the appropriate technology for modern Layer 2-over-Layer 3 data center connectivity.<\/span><\/p>\n

                                      Question 179<\/b><\/h3>\n

                                      A company has multiple Internet providers and wants one provider to be preferred for outbound traffic while keeping another provider available as a backup. Which BGP policy is appropriate?<\/b><\/p>\n

                                        \n
                                      1. Apply different Local Preference values<\/span><\/li>\n
                                      2. Increase the router ID<\/span><\/li>\n
                                      3. Disable iBGP<\/span><\/li>\n
                                      4. Change the Ethernet MTU<\/span><\/li>\n<\/ol>\n

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

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

                                        Different Local Preference values can be used to establish a preferred outbound BGP path. The preferred provider can receive a higher Local Preference, while the backup provider can receive a lower value. Internal routers will generally prefer the route with the higher Local Preference, while the lower-preference path remains available if the preferred route becomes unavailable. Router ID and Ethernet MTU do not provide outbound BGP path-selection policy, and disabling iBGP would prevent the desired internal propagation of BGP routes. Local Preference is therefore the appropriate mechanism for this requirement.<\/span><\/p>\n

                                        Question 180<\/b><\/h3>\n

                                        A network architect is designing a resilient multi-site network and wants to limit the impact of a routing failure within one region. Which design principle should be applied?<\/b><\/p>\n

                                          \n
                                        1. Failure-domain isolation<\/span><\/li>\n
                                        2. Single-homing<\/span><\/li>\n
                                        3. Larger Layer 2 domains<\/span><\/li>\n
                                        4. Centralizing every routing function<\/span><\/li>\n<\/ol>\n

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

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

                                          Failure-domain isolation limits the scope of network problems so that a failure in one region does not unnecessarily affect the entire infrastructure. Routing boundaries, summarization, modular architectures, and controlled propagation of routing information can help achieve this goal. A well-designed failure domain can also simplify troubleshooting and recovery by keeping instability localized. Single-homing introduces dependency on a single connection, while larger Layer 2 domains can increase the scope of Layer 2 failures. Centralizing all routing functions can also create unnecessary dependencies. Failure-domain isolation is therefore an important principle for resilient multi-site network design.<\/span><\/p>\n

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

                                          View Full Cisco CCDE 400-007 Exam Dumps and Practice Test Dumps.   Question 161 A network architect is designing an enterprise WAN with multiple transport providers and wants to select paths based on application requirements and real-time link conditions. Which technology is most suitable for this design? Traditional STP Static routing SD-WAN Layer 2 tunneling […]<\/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\/13666"}],"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=13666"}],"version-history":[{"count":1,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/13666\/revisions"}],"predecessor-version":[{"id":13689,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/posts\/13666\/revisions\/13689"}],"wp:attachment":[{"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/media?parent=13666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/categories?post=13666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.examlabs.com\/certification\/wp-json\/wp\/v2\/tags?post=13666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}