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Refer to the exhibit.

The network 10.10.0 .0/16 has been redistributed to OSPF processes and the best path to the destination from R1 has been chosen as R1-R2-R3 A failure occurred on the link between R2 and R3 and the path was changed to R1-R4-R5-R3 What happens when the link between R2 and R3 is restored'?

A.

The path R1-R4-R5-R3 continues to be the best path because the metric is better

A.

The path R1-R4-R5-R3 continues to be the best path because the metric is better

Answers
B.

The path reverts back to R1-R2-R3 because the route type is E1

B.

The path reverts back to R1-R2-R3 because the route type is E1

Answers
C.

The path R1-R4-R5-R3 continues to be the best path because OSPF does not compare the metrics between two domains

C.

The path R1-R4-R5-R3 continues to be the best path because OSPF does not compare the metrics between two domains

Answers
D.

The path reverts to R1-R2-R3 because this was the previous best path

D.

The path reverts to R1-R2-R3 because this was the previous best path

Answers
Suggested answer: D

Explanation:

When the link between R2 and R3 is restored, the path reverts back to R1-R2-R3 because this was the previous best path. This is because OSPF uses the Dijkstra algorithm to calculate the shortest path tree (SPT) and the path with the lowest cost is chosen as the best path. In this case, the cost of the path R1-R2-R3 is lower than the cost of the path R1-R4-R5-R3, so the path R1-R2-R3 is chosen as the best path. OSPF also has a preference order for different types of routes, such as intra-area, inter-area, external type 1, external type 2, NSSA type 1, and NSSA type 2. However, this preference order only applies when OSPF has to choose between routes of different types to the same destination.In this scenario, both paths are external type 2 routes, so the preference order does not affect the path selection

The General Bank of Greece plans to upgrade its legacy end-of-life WAN network with a new flexible, manageable, and scalable solution. The mam requirements are ZTP support, end-to-end encryption application awareness and segmentation. The CTO states that the main goal of the bank is CAPEX reduction. Which WAN technology should be used for the solution?

A.

SD-branch

A.

SD-branch

Answers
B.

DMVPN with PfR

B.

DMVPN with PfR

Answers
C.

managed SD-WAN

C.

managed SD-WAN

Answers
D.

SD-WAN

D.

SD-WAN

Answers
Suggested answer: C

A software-defined networking (SDN) controller teams network topology information by using BGP link-state sessions with the route reflectors of an MPLS-enabled network. The controller then uses the topology information to apply on-demand traffic policies to the network through a protocol that is supported from all Layer 3 routers Each policy is represented as a RIB entry in the control plane of the router Which SDN model has been implemented?

A.

SDN centralized

A.

SDN centralized

Answers
B.

SDN traffic engineering

B.

SDN traffic engineering

Answers
C.

SD-WAN

C.

SD-WAN

Answers
D.

SDN hybrid

D.

SDN hybrid

Answers
Suggested answer: B

When consumers that leverage laaS reach 100% resource capacity, what can be used to redirect the overflow of traffic to the public cloud so there is no disruption to service?

A.

cloud policing

A.

cloud policing

Answers
B.

cloud spill

B.

cloud spill

Answers
C.

cloud bursting

C.

cloud bursting

Answers
D.

cloud shaping

D.

cloud shaping

Answers
Suggested answer: C

Enterprise XYZ wants to implement fast convergence on their network and optimize timers for OSPF However they also want to prevent excess flooding of LSAs if there is a constantly flapping link on the network Which timers can help prevent excess flooding of LSAs for OSPF?

A.

OSPF propagation timers

A.

OSPF propagation timers

Answers
B.

OSPF throttling timers

B.

OSPF throttling timers

Answers
C.

OSPF delay timers

C.

OSPF delay timers

Answers
D.

OSPF flooding timers

D.

OSPF flooding timers

Answers
Suggested answer: B

What is the most important operational driver when building a resilient and secure modular network design?

A.

Reduce the frequency of failures requiring human intervention

A.

Reduce the frequency of failures requiring human intervention

Answers
B.

Minimize app downtime

B.

Minimize app downtime

Answers
C.

Increase time spent on developing new features

C.

Increase time spent on developing new features

Answers
D.

Dependencies on hardware or software that is difficult to scale

D.

Dependencies on hardware or software that is difficult to scale

Answers
Suggested answer: A

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.

VDI servers should be contained centrally within a DMZ

A.

VDI servers should be contained centrally within a DMZ

Answers
B.

The thin client traffic should be placed in a WAN QoS priority queue

B.

The thin client traffic should be placed in a WAN QoS priority queue

Answers
C.

VDI servers should be contained within dedicated VLANs in each branch location

C.

VDI servers should be contained within dedicated VLANs in each branch location

Answers
D.

The WAN should offer low latency and be resized

D.

The WAN should offer low latency and be resized

Answers
Suggested answer: D

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 be used in the routing policy design so that the rest of the network is not affected by the flapping issue?

A.

Use route dampening on LA router for the 10 1 5 0/24 network so that it does not get propagated when it flaps up and down

A.

Use route dampening on LA router for the 10 1 5 0/24 network so that it does not get propagated when it flaps up and down

Answers
B.

Use route filtering on Chicago router to block the 10.1.5.0/24 network from coming in from the LA router

B.

Use route filtering on Chicago router to block the 10.1.5.0/24 network from coming in from the LA router

Answers
C.

Use route filtering on LA router to block the 10.15.0/24 network from getting propagated toward Chicago and New York

C.

Use route filtering on LA router to block the 10.15.0/24 network from getting propagated toward Chicago and New York

Answers
D.

Use route aggregation on LA router to summarize the 10.1.4.0V24, 10.1.5.0724, 10.1.6.0/24. and 10.1.7.0/24 networks toward Chicago

D.

Use route aggregation on LA router to summarize the 10.1.4.0V24, 10.1.5.0724, 10.1.6.0/24. and 10.1.7.0/24 networks toward Chicago

Answers
Suggested answer: D

A consultant needs to evaluate project management methodologies for a new service deployment on the existing network of a customer. The customer wants to be involved in the end-to-end project progress and be provided with frequent updates. The customer also wants the ability to change the requirements if needed, as the project progresses. Which project management methodology should be used?

A.

three principles

A.

three principles

Answers
B.

phased

B.

phased

Answers
C.

Agile

C.

Agile

Answers
D.

Waterfall

D.

Waterfall

Answers
Suggested answer: C

In a redundant hub and spoke 'wheel' design, all spokes are connected to the hub, and spokes are connected to other spokes as well. During failure on one spoke link, the traffic from that site can be sent to a neighboring site for it to be forwarded to the hub site. But during peak hours, a link is overloaded and traffic is re-routed to a neighbor, which subsequently becomes overloaded. This overload results in network traffic oscillation as the load varies at each spoke site. This design provides more redundancy but not more resiliency because the routing protocol must process many alternate paths to determine the lowest cost path. Which two design changes help to improve resilience in this case? (Choose two.)

A.

Increase the number of redundant paths considered during the routing convergence calculation.

A.

Increase the number of redundant paths considered during the routing convergence calculation.

Answers
B.

Eliminate links between every spoke.

B.

Eliminate links between every spoke.

Answers
C.

Increase routing protocol convergence timers.

C.

Increase routing protocol convergence timers.

Answers
D.

Increase unequal-cost parallel paths.

D.

Increase unequal-cost parallel paths.

Answers
E.

Use two links to each remote site instead of one.

E.

Use two links to each remote site instead of one.

Answers
Suggested answer: D, E
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