400-007 Self-Study Guide for Becoming an Cisco Certified Design Expert (CCDE v3.0) Written Exam Expert
400-007 Study Guide Realistic Verified 400-007 Dumps
Cisco 400-007 exam, also known as the CCDE v3.0 written exam, is a key component of the CCDE certification process. It is a two-hour exam that tests candidates' knowledge of network design principles, methodologies, and best practices. 400-007 exam covers a wide range of topics, including network architecture, routing and switching protocols, security, virtualization, and network management. Passing the 400-007 exam is a prerequisite for taking the CCDE practical exam, which involves designing and implementing a network infrastructure based on a given scenario.
Cisco 400-007 exam is a written exam that consists of 120 multiple-choice questions. 400-007 exam is designed to test the knowledge and skills of IT professionals in the areas of network design, architecture, and implementation. 400-007 exam covers a wide range of topics, including network design methodologies, network architecture, network security, and network management. 400-007 exam is designed to be challenging and requires a deep understanding of network design principles and best practices.
NEW QUESTION # 132
An MPLS service provider is offering a standard EoMPLS-based VPLS service to Customer A.
providing Layer 2 connectivity between a central site and approximately 100 remote sites. Customer A wants to use the VPLS network to carry its internal multicast video feeds which are sourced at the central site and consist of 20 groups at Mbps each. Which service provider recommendation offers the most scalability?
- A. EoMPLS-based VPLS can carry multicast traffic in a scalable manner
- B. Replace VPLS with a Layer 3 MVPN solution to carry the streams between sites
- C. Enable snooping mechanisms on the provider PE routers.
- D. Use a mesh of GRE tunnels to carry the streams between sites
Answer: B
NEW QUESTION # 133
Drag and drop the FCAPS network management reference models from the left onto the correct definitions on the right.
Answer:
Explanation:
NEW QUESTION # 134
What are two descriptions of network optimization? (Choose two.)
- A. network health maintenance
- B. identify network requirements
- C. maintain high availability
- D. network redesign
- E. proactive network management
Answer: A,C
NEW QUESTION # 135
An architect receives a business requirement from a CTO that states the RTO and RPO for a new system should be as close as possible to zero. Which replication method and data center technology should be used?
- A. asynchronous replication over geographically dispersed dual data centers via CWDM
- B. asynchronous replication over dual data centers via DWDM
- C. synchronous replication over geographically dispersed dual data centers via MPLS
- D. synchronous replication over dual data centers via Metro Ethernet
Answer: C
Explanation:
RTO and RPO are measures of how quickly and accurately a system can be recovered after a disaster or failure. RTO refers to the amount of time it takes to restore a system to its normal operation after a failure, while RPO refers to the amount of data that can be lost as a result of a failure. In synchronous replication, data is written to both the primary and secondary systems at the same time. This ensures that the data on the secondary system is always up-to-date and ready for use in the event of a disaster or failure. Geographically dispersed dual data centers refer to two data centers that are located in different geographical locations, which can help to reduce the risk of a disaster or failure impacting both data centers at the same time.
NEW QUESTION # 136
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 switched give that no RPF check is performed
- B. It is switched due to a successful RPF check against the routing table
- C. It is dropped due to an unsuccessful RPF check against the multicast source
- D. It is dropped due to an unsuccessful RPk8t8ck against the multicast receiver.
Answer: B
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 # 137
Refer to the exhibit.
Your company designed a network to allow server VLANs to span all access switches in a data center In the design, Layer 3 VLAN interfaces and HSRP are configured on the aggregation switches Which two features improve STP stability within the network design? (Choose two.)
- A. root guard on access ports
- B. BPDU guard on the aggregation switch downlinks toward access switches
- C. access switch pairs explicitly determined to be root and backup root bridges
- D. root guard on the aggregation switch downlinks toward access switches
- E. edge port on access ports
- F. BPDU guard on access ports
Answer: E,F
NEW QUESTION # 138
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. Cape Town and Mumbai
- B. Santiago and Cape Town
- C. Mumbai and Beijing
- D. Santiago and Mumbai
- E. Cape Town and Beijing
- F. Santiago and Beijing
Answer: A
NEW QUESTION # 139
Refer to the table.
A customer investigates connectivity options for a DCI between two production data centers. The solution must provide dual 10G connections between locations with no single points of failure for Day 1 operations. It must also include an option to scale for up to 20 resilient connections in the second year to accommodate isolated SAN over IP and isolated, dedicated replication IP circuits. All connectivity methods are duplex 10 Gbps. Which transport technology costs the least over two years, in the scenario?
- A. DWDM
- B. Metro Ethernet
- C. CWDM
- D. MPLS
Answer: B
NEW QUESTION # 140
You are designing the routing design for two merging companies that have overlapping IP address space. Which of these must you consider when developing the routing and NAT design?
- A. Local to global NAT translation is done after routing
- B. Local to global NAT translation is done before policy-based routing
- C. Global to local NAT translation is done after policy-based routing.
- D. Global to local NAT translation is done before routing.
Answer: D
NEW QUESTION # 141
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. controller stale consistency
- B. controller clustering
- C. control path reliability
- D. control node reliability
Answer: A
NEW QUESTION # 142
Drag and drop the multicast protocols from the left onto the current design situation on the right.
Answer:
Explanation:
NEW QUESTION # 143
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. metro network
- B. application network
- C. wide area network
- D. control network
- E. mobile network
Answer: C,D
NEW QUESTION # 144
The network designer needs to use GLOP IP addresses in order to make them unique within their ASN Which multicast address range should be used?
- A. H233.0.0 0 to 233.255.255 255
- B. 224000 to 2240.0 255
- C. 232.0.0.0 to 232 255.255.255
- D. 239000 to 239255255.255
Answer: A
NEW QUESTION # 145
Which two statements explain the operation of BFD asynchronous mode? (Choose two )
- A. BFD asynchronous mode with echo packets uses separate control packets and echo packets.
- B. BFD asynchronous mode with echo packets combines the control packets and echo packets into a single packet.
- C. BFD asynchronous mode with and without echo packets use control packets.
- D. BFD asynchronous without echo packets has control packets sent back to the originating router, which echoes the control packet to detect failures.
- E. BFD asynchronous mode without echo packets uses control packets, and BFD asynchronous mode with echo packets does not.
Answer: A,C
NEW QUESTION # 146
The administrator of a small branch office wants to implement the Layer 2 network without running STP The office has some redundant paths Which mechanism can the administrator use to allow redundancy without creating Layer 2 loops?
- A. Use fabric path with ECMP
- B. Use double-sided VPC on both switches
- C. Use two port channels as Flex links
- D. Use 802.3ad link bundling.
Answer: C
NEW QUESTION # 147
Which two points must network designers consider when designing a new network design or when evaluating an existing network design to help them understand the high-level design direction with regards to the security aspects? (Choose two)
- A. Consider Business objectives and goals
- B. Consider organization's security policy standards
- C. Consider for only multi-site networks
- D. Consider for only new network technologies and components
Answer: A,B
NEW QUESTION # 148
Drag and drop the multicast protocols from the left onto the current design situation on the right.
Answer:
Explanation:
NEW QUESTION # 149
Refer to the exhibit.
There are multiple trees in the Cisco FabricPath All switches in the Layer 2 fabric share the same view of each tree. Which two concepts describe how the multicast traffic is load-balanced across this topology? (Choose two )
- A. A specific (S.G) traffic is not load-balanced
- B. Every leaf node assigns the specific (S.G) to the same tree.
- C. The multicast traffic is generally load-balanced across all trees
- D. A specific (S.G) multicast traffic is load-balanced across all trees due to better link utilization efficiency.
- E. All trees are utilized at the same level of the traffic rate
Answer: D,E
NEW QUESTION # 150
How many fully established neighbour relationships exist on an Ethernet with five routers running OSPF as network type broadcast?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
Answer: C
Explanation:
Assuming routers R1-R5, R1 is elected DR, R2 BDR. Fully established neighborships only occur to DR and BDR, all other neighbors are in 2Way DR other state. DR|BDRFull relationships:
R2-R1
R3-R1
R3-R2
R4-R1
R4-R2
R5-R1
R5-R2
NEW QUESTION # 151
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Cisco 400-007 exam covers a wide range of topics related to network design, including network protocols, security, scalability, and network optimization. Candidates are expected to have a deep understanding of these topics and be able to apply their knowledge in real-world scenarios. 400-007 exam is also designed to test the candidate's ability to analyze and evaluate network requirements and design solutions that meet these requirements.
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