Cisco 400-007 Cisco Certified Design Expert Online Training
Cisco 400-007 Online Training
The questions for 400-007 were last updated at Oct 19,2025.
- Exam Code: 400-007
- Exam Name: Cisco Certified Design Expert
- Certification Provider: Cisco
- Latest update: Oct 19,2025
Refer to the exhibit.
Company XYZ BGP topology is as shown in the diagram. The interface on the LA router connected toward the 10 1.5.0/24 network is faulty and is going up and down, which affects the entire routing domain.
Which routing technique can the network administrator use so that the rest of the network is not affected by the flapping issue?
- A . The LA administrator should use route aggregation to summarize the 10 1 4.0/24, 10 1 5 0/24, 10.1.6.0/24, and 10 1 7 0/24 networks toward Chicago
- B . The LA administrator should use route dampening for the 10.1.5 0/24 network so that it does not get propagated when it flaps up and down.
- C . The LA administrator should use route filtering to block the 10.1.5.0/24 network from getting propagated toward Chicago and New York.
- D . The Chicago administrator should use route filtering to block the 10.1.5.0/24 network from coming in from the LA router.
Company XYZ is running OSPF in their network. They have merged with another company that is running EIGRP as the routing protocol. Company XYZ now needs the two domains to talk to each other with redundancy, while maintaining a loop free environment. The solution must scale when new networks are added into the network in the near future.
Which technology can be used to meet these requirements?
- A . multipoint route-redistribution with route filtering using ACLs
- B . DUMP multipoint route-redistribution with route filtering using route tags
- C . DUMPS single point route-redistribution with route filtering using route tags
- D . DUMPS single point route-redistribution with route filtering using ACLs
In an OSPF network with routers connected together with Ethernet cabling, which topology typically takes the longest to converge?
- A . partial mesh
- B . full mesh
- C . ring
- D . squared
- E . triangulated
How many fully established neighbour relationships exist on an Ethernet with five routers running OSPF as network type broadcast?
- A . 5
- B . 6
- C . 7
- D . 10
- E . 20
A senior network designer suggests that you should improve network convergence times by reducing BGP timers between your CE router and the PE router of the service provider.
Which two factors should you consider to adjust the timer values? (Choose two.)
- A . service provider agreement to support tuned timers
- B . manual updates to the peer groups
- C . service provider scheduling of changes to the PE
- D . number of routes on the CE router
- E . number of VRFs on the PE router
Refer to the exhibit.
ACME Mining has four data centers in Santiago. Cape Town. Mumbai, and Beijing, full-mesh connected via a 400 Mb/s EVP-LAN.
They want to deploy a new mission-critical application with these requirements:
✑ cluster heartbeat 2 Mb/s continuous (250 KB/s)
✑ cluster heartbeat one-way maximum latency 100 ms
These are the current ping tests results between the four data centers:
Which hosting data center pair can host the new application?
- A . Mumbai and Beijing
- B . Santiago and Cape Town
- C . Santiago and Mumbai
- D . Cape Town and Mumbai
- E . Cape Town and Beijing
- F . Santiago and Beijing
Software-defined networking architecture is used for cost-effective, adaptable, and easily manageable applications.
In which two software-defined networks is SDN commonly used? (Choose two.)
- A . wide area network
- B . mobile network
- C . metro network
- D . application network
- E . control network
Refer to the table.
A customer investigates connectivity options for a DCI between two production data centers to aid a large-scale migration project. The migration is estimated to take 20 months to complete but might extend an additional 10 months if issues arise. All connectivity options meet the requirements to migrate workloads.
Which transport technology provides the best ROI based on cost and flexibility?
- A . CWDM over dark fiber
- B . MPLS
- C . DWDM over dark fiber
- D . Metro Ethernet
Company XYZ has two routing domains in their network, EIGRP and OSPF. The company wants to provide full reachability between the two domains by implementing redistribution on a router running both protocols. They need to design the redistribution in a way that the OSPF routers will see link costs added to external routes.
How must the redistribution strategy be designed for this network?
- A . Redistribute using metric type 2 into OSPF.
- B . Redistribute using metric type 1 into OSPF.
- C . Redistribute using metric type 1 into EIGRP.
- D . Redistribute using metric type 2 into EIGRP.
Which two characteristics apply to firewall transparent mode operations in a firewall solution design? (Choose two.)
- A . Changes in the existing IP addressing and subnets are required
- B . The firewall can participate actively on spanning tree.
- C . Multicast traffic can traverse the firewall.
- D . OSPF adjacencies can be established through the firewall
- E . The firewall acts like a router hop in the network.
Latest 400-007 Dumps Valid Version with 141 Q&As
Latest And Valid Q&A | Instant Download | Once Fail, Full Refund
