Practice Free 400-007 Exam Online Questions
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.
What are two top cloud-native security challenges faced by today’s cloud-oriented organizations? (Choose two)
- A . establishing user roles
- B . polymorphism
- C . lack of visibility and tracking
- D . increased attack surface
- E . user credential validation
Which two characteristics are associated with 802 1s? (Choose two)
- A . 802.1s supports up to 1024 instances of 802.1
- B . 802.1 s is a Cisco enhancement to 802.1w.
- C . 802.1s provides for faster convergence over 802 1D and PVST+.
- D . CPU and memory requirements are the highest of all spanning-tree STP implementations.
- E . 802.1s maps multiple VLANs to the same spanning-tree instance
Which development model is closely associated with traditional project management?
- A . static model
- B . Agile model
- C . evolutionary delivery model
- D . lifecycle model
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 . access
- B . core
- C . collapsed core
- D . distribution
In a controller-based network architecture, between which of the two elements the southbound interface does the communication happen with a goal to program the data plane forwarding tables? (Choose two)
- A . core components
- B . forwarding lane
- C . layer interface
- D . networking device
- E . controller
Which technique facilitates analytics and knowledge discovery in big data systems to recognize hidden and complex patterns?
- A . predictive monitoring
- B . deep learning
- C . traffic classification
- D . network mobility
In a distributed cloud-native environment, calls to services and cloud resources can fail caused by unanticipated events that will require longer periods of time to resolve. These faults can range in severity from a partial loss of connectivity to the complete failure of a service. In these situations, it’s pointless for an application to continually retry an operation that is unlikely to succeed.
Which pattern can prevent an application from repeatedly trying to execute an operation that’s likely to fail?
- A . circuit breaker
- B . bulkhead
- C . fallback
- D . timeout
You are designing a network running both IPv4 and IPv6 to deploy QoS.
Which consideration is correct about the QoS for IPv4 and IPv6?
- A . IPv4 and IPv6 traffic types can use use queuing mechanisms such as LLQ, PQ and CQ.
- B . IPv6 packet classification is only available with process switching, whereas IPv4 packet classification is available with both process switching and CEF.
- C . IPv6 and IB/4 traffic types can use a single QoS policy to match both protocols
- D . Different congestion management mechanisms need to be used for IPv4 and IPv6 traffic types
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?
- A . R5 should be configured as a route reflector for R1, R2, R3 and R4. BGP routes must be redistributed at R1 and R2 into OSPF.
- B . Configuration should be set up with R1 and R2, and R3 in one sub AS, with and R4 in another, and redistribution at R1 and R2.
- C . A full mesh should be deployed between all the routers with mutual redistribution to take place at R1 and R2.
- D . R1, R2, R3 and R4 must be set up with a neighbor relationship with R5 only must not be a route reflector.