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  1. Home
  2. Cisco Certification
  3. 400-007 Exam
  4. Cisco.400-007.v2025-12-06.q401 Dumps
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Question 351

Refer to the exhibit.

An engineer is designing the traffic flow for AS 111. Traffic from AS 111 should be preferred via AS 100 for all external routes. A method must be used that only affects AS 111. Which BGP attributes are best suited to control outbound traffic?

Correct Answer: B
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Question 352

Drag and drop the optical technology design characteristics on the left to the correct optical technologies on the right. Not all options are used

Correct Answer:
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Question 353

Which two actions must be taken when assessing an existing wireless network implementation for its readiness to support voice traffic? (Choose two.)

Correct Answer: A,B
* A (Roaming delay):Voice requires seamless roaming with minimal handoff delay to avoid call drops.
* B (Uniform radio coverage):Consistent signal coverage is essential for maintaining voice call quality throughout the facility.
Other options explained:
* C: High channel utilization affects capacity but not directly the initial readiness assessment.
* D: Latency is important but typically captured during ongoing performance testing, not pre-assessment.
* E: TX power changes indicate instability but are not primary readiness criteria.
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Question 354

If the desire is to connect virtual network functions together to accommodate different types of network service connectivity what must be deployed?

Correct Answer: B
Service chaining is the technique of connecting virtual network functions together to provide different types of network service connectivity. Service chaining uses software-defined networking (SDN) programmability to create a chain of connected network services, such as firewalls, load balancers, NAT, and intrusion protection. Service chaining can automate the provisioning of network applications that have different characteristics and requirements, such as security, latency, or quality of service (QoS). Service chaining can also optimize the use of network resources and improve application performance by using SDN analytics and performance tools to select the best available network paths and avoid network congestion. Service chaining is being used in many SDN and network functions virtualization (NFV) use cases and deployments, such as data centers, carrier networks, and virtual customer edge123. Reference:
1: What is Network Service Chaining or Service Function Chaining - SDxCentral
2: On service chaining using Virtual Network Functions in Network-enabled Cloud systems | IEEE Conference Publication | IEEE Xplore
3: Service function chaining - Gini5
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Question 355

Refer to the exhibit.

OSPF is running as the IGP to provide reachability to all AS100 networks R3 and R4 are the current ABRs at the boundary of OSPF Area0 and Areal Now BGP must be deployed within AS 100 because it will be receiving Internet routes from its eBGP peers (the service provider) connected to R1 and R2 What is an optimal solution for this deployment to configure BGP relationships and redistribute BGP learned routes into OSPF?

Correct Answer: A
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