2024 Updated Cisco 400-007 Dumps PDF - Want To Pass 400-007 Fast
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Cisco Certified Design Expert (CCDE v3.0) Written exam is a challenging certification exam that tests the knowledge, skills, and expertise of network design experts. The CCDE certification is a prestigious credential that distinguishes individuals who possess advanced knowledge and experience in designing complex network infrastructure. Candidates must have a deep understanding of network design principles and best practices, as well as significant experience in network engineering. Preparing for the exam may involve taking courses, attending workshops, and gaining hands-on experience in network design.
NEW QUESTION # 106
Drag and drop the design characteristics from the left onto the correct network filter techniques on the right. Not all options are used.
Answer:
Explanation:
NEW QUESTION # 107
An enterprise wants to provide low-cost delivery of network systems that can be scaled on business demand, followed by an initiative to reduce capital expenses for new IT equipment. Which technology meets these goals'?
- A. laaS within a private cloud
- B. SaaS within an on-premises location
- C. laaS within an on-premises location
- D. PaaS within a public cloud
Answer: D
NEW QUESTION # 108
Refer to the exhibit.
A customer runs OSPF with Area 5 between its aggregation router and an internal router When a network change occurs in the backbone. Area 5 starts having connectivity issues due to the SPF algorithm recalculating an abnormal number of times in Area 5 You are tasked to redesign this network to increase resiliency on the customer network with the caveat that Router B does not support the stub area How can you accomplish this task*?
- A. Create a virtual link to Area 0 from Router B to the ABR
- B. Set Area 5 to stubby at the ABR anyway
- C. Increase the bandwidth on the connection between Router A and Router B
- D. Turn on LSA throttling on all devices in Area 5
- E. Implement LSA filtering ontheAB, allowing summary routes and preventing more specific routes into Area 5
Answer: E
NEW QUESTION # 109
SD-WAN can be used to provide secure connectivity to remote offices, branch offices, campus networks, data centers, and the cloud over any type of IP-based underlay transport network. Which two statements describe SD WAN solutions? (Choose two.)
- A. Solutions allow for variations of commodity and specialized switching hardware.
- B. Solutions include centralized orchestration, control, and zero-touch provisioning.
- C. Control and data forwarding planes are kept separate.
- D. Improved operational efficiencies result In cost savings.
- E. SD-WAN networks are inherently protected against slow performance.
Answer: B,C
NEW QUESTION # 110
Company XYZ is designing their network using the three-layer hierarchical model. At which layer must the QoS design classify or mark the traffic?
- A. distribution
- B. core
- C. collapsed core
- D. access
Answer: D
NEW QUESTION # 111
Refer to the exhibit.
The WAN network of the General Bank of Greece has experienced several outages It takes too long to activate a new branch site The networking department of the bank plans to upgrade the legacy end-of-life WAN network with a new flexible manageable, and scalable in-house solution The number of branches will increase exponentially in the next fiscal year The CTO states that the bank's mam goal is OPEX reduction The network engineering team prepares a table to evaluate the available options Which WAN technology can be used for the solution?
- A. Managed SD-WAN
- B. SD-WAN over L2VPN
- C. SD-WAN over L3VPN
- D. DMVPN over L3VPN
Answer: A
NEW QUESTION # 112
An architect designs a multi-controller network architecture with these requirements:
* Achieve fast failover to control traffic when controllers fail.
* Yield a short distance and high resiliency in the connection between the switches and the controller.
* Reduce connectivity loss and enable smart recovery to improve the SDN survivability.
* Improve connectivity by adding path diversity and capacity awareness for controllers.
Which control plane component of the multi-controller must be built to meet the requirements?
- A. control node reliability
- B. controller clustering
- C. controller stale consistency
- D. control path reliability
Answer: C
NEW QUESTION # 113
Refer to the exhibit.
An engineer has been asked to redesign the traffic flow toward AS 111 coming from AS 500.Traffic destined to AS 111 network 91 7 0.0/16 should come in via AS 100. while traffic destined to all other networks in AS 111 should continue to use the existing path Which BGP attributes are best suited to control this inbound traffic coming from BGP AS 500 Into the 91.7.0.0/16 network?
- A. Use local preference on R1 for the networks that AS 500 advertises to AS 111.
- B. Prepend AS path for the 91.7.0.0/16 network and set it for neighbor in AS 200.
- C. Set higher MED for neighbor in AS 100 to influence incoming traffic for the 91. 7.0.0/16 network.
- D. Use extended community for the 91.7.0.0/16 network, not advertising it to the bi-lateral peer.
Answer: B
NEW QUESTION # 114
The SD-WAN architecture is composed of separate orchestration management, control, and data planes Which activity happens at the orchestration plane?
- A. automatic onboarding of the SD-WAN routers into the SD-WAN overlay
- B. packet forwarding
- C. central configuration and monitoring
- D. decision-making process on where traffic flows
Answer: A
NEW QUESTION # 115
Which protocol does an SD-Access wireless Access Point use for its fabric data plane?
- A. LISP
- B. CAPWAP
- C. VXLAN
- D. GRE
- E. MPLS
Answer: C
NEW QUESTION # 116
Refer to the exhibit.
As part of a redesign project, you must predict multicast behavior What happens to the multicast traffic received on the shared tree (*,G), if it is received on the LHR interface indicated*?
- A. It is dropped due to an unsuccessful RPF check against the multicast source
- B. It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.
- C. It is switched due to a successful RPF check against the routing table
- D. It is switched give that no RPF check is performed
Answer: A
Explanation:
https://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/16450-mcastguide0.html
When a multicast packet arrives on an interface, the RPF process checks to ensure that this incoming interface is the outgoing interface used by unicast routing in order to reach the source of the multicast packet. This RPF check process prevents loops. Multicast routing does not forward a packet unless the source of the packet passes a RPF check. Once a packet passes this RPF check, multicast routing forwards the packet based only upon the destination address.
NEW QUESTION # 117
You are designing a large-scale DMVPN network with more than 500 spokes using EIGRP as the IGP protocol Which design option eliminates potential tunnel down events on the spoke routers due to the holding time expiration?
- A. Increase the hold queue on the tunnel interface of the spoke routers
- B. Increase the hold queue on the physical interface of the spoke routers.
- C. Increase the hold queue on the physical interface of the hub router.
- D. Apply QoS for pak_priority class
- E. Increase the hold queue on the tunnel interface of the hub router
Answer: E
NEW QUESTION # 118
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 filtering to block the 10.1.5.0/24 network from getting propagated toward Chicago and New York.
- 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 Chicago administrator should use route filtering to block the 10.1.5.0/24 network from coming in from the LA router.
- D. 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
Answer: D
NEW QUESTION # 119
A business invests in SDN and develops its own SDN controller that, due to budget constraints, runs on a single controller. The controller actively places an exclusive lock on the configuration of the devices to ensure it is the only source of changes to the environment. What is the result if the controller fails?
- A. Manual changes are only possible until the controller is restored
- B. If a device fails, the configuration backup is unavailable-
- C. All device configurations are in read-only mode until the controller is restored.
- D. The control plane is unavailable until the controller is restored.
Answer: D
NEW QUESTION # 120
Cost is often one of the motivators for a business to migrate from a traditional network to a software- defined network. Which design decision is directly influenced by CAPEX drivers?
- A. manageability
- B. stability
- C. complexity
- D. scalability
Answer: D
NEW QUESTION # 121
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 solution must provide a single 10G connection between locations and be able to run its own varying QoS profiles without service provider interaction based on the migration stages. All connectivity methods are at 10 Gbps. Which transport technology costs the least if the connectivity is required for just one year?
- A. MPLS wires only
- B. DWDM over dark fiber
- C. CWDM over dark fiber
- D. Metro Ethernet
Answer: D
NEW QUESTION # 122
A network architect in an enterprise is designing a network policy for certain database applications. The goal of the policy is to allow these applications to access the internet directly, whereas other user and network applications that communicate with systems or users outside their own network must be routed through the data center. The focus is on achieving higher availability and a better user experience for the database applications, but switching between different network paths based on performance characteristics must be supported.
Which solution meets these requirements?
- A. MPLS direct connect
- B. Cloud onRamp for laaS
- C. Cloud onRamp for SaaS
- D. MPLS L3VPN with QoS
Answer: C
Explanation:
https://www.cisco.com/c/en/us/solutions/collateral/enterprise-networks/sd-wan/nb-06-cloud-onramp-saas-faq-cte-en.html
NEW QUESTION # 123
An IT service provider is upgrading network infrastructure to comply with PCI security standards. The network team finds that 802.1X and VPN authentication based on locally-significant certificates are not available on some legacy phones.
Which workaround solution meets the requirement?
- A. Replace legacy phones with new phones because the legacy phones will lose trust if the certificate is renewed.
- B. Temporarily allow fallback to TLS 1.0 when using certificates and then upgrade the software on legacy phones.
- C. Enable phone VPN authentication based on end-user username and password.
- D. Use authentication-based clear text password with no EAP-MD5 on the legacy phones.
Answer: C
NEW QUESTION # 124
How can EIGRP topologies be designed to converge as fast as possible in the event of a point-to-point link failure?
- A. Limit the query domain by use of default routes.
- B. Limit the query domain by use of distribute lists.
- C. Build neighbor adjacencies in a triangulated fashion.
- D. Limit the query domain by use of summarization.
- E. Build neighbor adjacencies in squared fashion.
Answer: D
NEW QUESTION # 125
A business wants to centralize services via VDI technology and to replace remote WAN desktop PCs with thin client-type machines to reduce operating costs Which consideration supports the new business requirement?
- A. The thin client traffic should be placed in a WAN QoS priority queue
- B. VDI servers should be contained within dedicated VLANs in each branch location
- C. The WAN should offer low latency and be resized
- D. VDI servers should be contained centrally within a DMZ
Answer: C
NEW QUESTION # 126
What are two advantages of controller-based networks versus traditional networks? (Choose two.)
- A. more flexible configuration per device
- B. more consistent device configuration
- C. programmatic APIs that are available per device
- D. the ability to configure the features for the network rather than per device
- E. the ability to have forwarding tables at each device
Answer: B,D
NEW QUESTION # 127
Which technology supports antispoofing and does not have any impact on encryption performance regardless of packet size?
- A. IPsec
- B. DHCP snooping with DAI
- C. IP source guard
- D. MACsec
Answer: D
NEW QUESTION # 128
Refer to the exhibit.
Refer to the exhibit A service provider has a requirement to use Ethernet OAM to detect end-to-end connectivity failures between SP-SW1 and SP- SW2 Which two ways to design this solution are true? (Choose two)
- A. Enable Connectivity Fault Management on the SP switches
- B. Enable unicast heartbeat messages to be periodically exchanged between MEPs
- C. Use upward maintenance endpoints on the SP switches
- D. Forward LLD PDUs over the VPLS
- E. Forward E-LMI PDUs over VPLS
Answer: A,C
NEW QUESTION # 129
Company XYZ is designing the network for IPv6 security and they have these design requirements:
A switch or router must deny access to traffic from sources with addresses that are correct, but are topologically incorrect Devices must block Neighbor Discovery Protocol resolution for destination addresses that are not found in the binding table.
Which two IPv4 security features are recommended for this company? (Choose two)
- A. IPv6 RA Guard
- B. IPv6 Source Guard
- C. IPv6 Prefix Guard
- D. IPv6 DHCP Guard
- E. IPv6 Destination Guard
Answer: C,E
NEW QUESTION # 130
Retef to the exhibit.
An engineer is designing a multiarea OSPF network for a client who also has a large EIGRP domain EIGRP routes are getting redistributed into OSPF ,OSPF area 20 has routers with limited memory and CPU resources The engineer wants to block routes from EIGRP 111 from propagating into area 20 and allow EIGRP 222 routes to How in Which OSPF area type fulfills this design requirement?
- A. area 20 as a stub area
- B. type 5 LSA filtering on the ASBR between EIGRP 111 and area a
- C. area 20 as a NSSA area
- D. type 3 LSA filtering on the ABR between area 0 area 20
Answer: C
NEW QUESTION # 131
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Cisco 400-007 exam tests a candidate's knowledge of network design theories, principles, and best practices, as well as their ability to apply these concepts to real-world scenarios. It covers a wide range of topics, including network design methodologies, network security, routing and switching, virtualization, and network automation. To pass 400-007 exam, candidates need to have a deep understanding of these topics and be able to apply their knowledge to solve complex problems.
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