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Cisco Designing and Implementing Cloud Connectivity Sample Questions (Q24-Q29):

NEW QUESTION # 24
Refer to the exhibit.

Refer to the exhibits. An engineer must redistribute IBGP routes into OSPF to connect an on-premises network to a cloud provider. Which command must be configured on router R2?

  • A. redistribute bgp 100 ospf 1
  • B. bgp redistrlbute-lnternal
  • C. redistribute bgp 100 subnets
  • D. redistribute ospf 1

Answer: A

Explanation:
This command redistributes the routes learned from BGP AS100 into OSPF Area 1, which allows router R2 to advertise those routes to router R1 and connect the on-premises network to the cloud provider. The other options are incorrect because they either redistribute the wrong routes or use the wrong syntax5 .
I hope this helps you understand the question and the answer. If you have any other questions or requests, please let me know. I am always happy to help.
References: 1: Learning Plan: Designing and Implementing Cloud Connectivity v1.0 (ENCC 300-440) Exam Prep 2: Designing and Implementing Cloud Connectivity (ENCC) v1.0 3: Cisco Multiprotocol Label Switching 4: Exploring Cisco Cloud OnRamp for Colocation 5: ENCC: Configuring IPsec VPN from Cisco IOS XE to AWS : [Deploying Cisco IOS VTI-Based Point-to-Point IPsec VPNs]


NEW QUESTION # 25

Refer to the exhibit. An engineer successfully brings up the site-to-site VPN tunnel between the remote office and the AWS virtual private gateway, and the site-to-site routing works correctly. However, the end-to-end ping between the office user PC and the AWS EC2 instance is not working. Which two actions diagnose the loss of connectivity? (Choose two.)

  • A. On the Cisco VPN router, configure the IPsec SA to allow ping packets.
  • B. Check the network security group rules on the host VNET.
  • C. Check the security group rules for the host VPC.
  • D. Check the IPsec SA counters.
  • E. On the AWS private virtual gateway, configure the IPsec SA to allow ping packets.

Answer: C,D

Explanation:
The end-to-end ping between the office user PC and the AWS EC2 instance is not working because either the security group rules for the host VPC are blocking the ICMP traffic or the IPsec SA counters are showing errors or drops. To diagnose the loss of connectivity, the engineer should check both the security group rules and the IPsec SA counters. The network security group rules on the host VNET are not relevant because they apply to Azure, not AWS. The IPsec SA configuration on the Cisco VPN router and the AWS private virtual gateway are not likely to be the cause of the problem because the site-to-site VPN tunnel is already up and the site-to-site routing works correctly. References := Designing and Implementing Cloud Connectivity (ENCC, Track 1 of 5), Module 3: Configuring IPsec VPN from Cisco IOS XE to AWS, Lesson 3: Verify IPsec VPN Connectivity Security for VPNs with IPsec Configuration Guide, Cisco IOS XE, Chapter: IPsec VPN Overview, Section: IPsec Security Association AWS Documentation, User Guide for AWS VPN, Section: Security Groups for Your VPC


NEW QUESTION # 26
A company with multiple branch offices wants a suitable connectivity model to meet these network architecture requirements:
* high availability
* quality of service (QoS)
* multihoming
* specific routing needs
Which connectivity model meets these requirements?

  • A. hub-and-spoke topology using MPLS with static routing and dedicated bandwidth for QoS
  • B. fully meshed topology with SD-WAN technology using dynamic routing and prioritized traffic for QoS
  • C. hybrid topology that combines MPLS and SD-WAN
  • D. star topology with internet-based VPN connections and BGP for routing

Answer: B

Explanation:
A fully meshed topology with SD-WAN technology using dynamic routing and prioritized traffic for QoS meets the network architecture requirements of the company. A fully meshed topology provides high availability by eliminating single points of failure and allowing multiple paths between branch offices.
SD-WAN technology enables multihoming by supporting multiple transport options, such as MPLS, internet, LTE, etc. SD-WAN also provides QoS by applying policies to prioritize traffic based on application, user, or network conditions. Dynamic routing allows the SD-WAN solution to adapt to changing network conditions and optimize the path selection for each traffic type. A fully meshed topology with SD-WAN technology can also support specific routing needs, such as segment routing, policy-based routing, or application-aware routing. References:
Designing and Implementing Cloud Connectivity (ENCC) v1.0
[Cisco SD-WAN Design Guide]
[Cisco SD-WAN Configuration Guide]


NEW QUESTION # 27
A cloud engineer is setting up a new set of nodes in the AWS EKS cluster to manage database integration with Mongo Atlas. The engineer set up security to Mongo but now wants to ensure that the nodes are also secure on the network side. Which feature in AWS should the engineer use?

  • A. security groups
  • B. EC2 Trust Lock
  • C. key pairs
  • D. tagging

Answer: A

Explanation:
Security groups are a feature in AWS that allow you to control the inbound and outbound traffic to your instances. They act as a virtual firewall that can filter the traffic based on the source, destination, protocol, and port. You can assign one or more security groups to your instances, and each security group can have multiple rules. Security groups are stateful, meaning that they automatically allow the response traffic for any allowed inbound traffic, and vice versa. Security groups are essential for securing your nodes in the AWS EKS cluster, as they can prevent unauthorized access to your Mongo Atlas database or other resources. You can also use security groups to isolate your nodes from other instances in the same VPC or subnet, or to allow communication between nodes in different clusters or regions. References := AWS Security Groups Security Groups for Your VPC Security Groups for Your Amazon EC2 Instances Security Groups for Your Amazon EKS Cluster


NEW QUESTION # 28
An engineer is implementing a highly securemultitierapplication in AWS that includes S3. RDS, and some additional private links. What is critical to keep the traffic safe?

  • A. EC2 super policies and specific routing policies
  • B. VPC peering and bucket policies
  • C. gateway load balancers and specific routing policies
  • D. specific routing and bucket policies

Answer: D

Explanation:
A highly secure multitier application in AWS that includes S3, RDS, and some additional private links requires specific routing and bucket policies to keep the traffic safe. The reasons are as follows:
Specific routing policies are needed to ensure that the traffic between the tiers is routed through the private links, which provide secure and low-latency connectivity between AWS services and on-premises resources12. The private links can also prevent the exposure of the data and the application logic to the public internet12.
Bucket policies are needed to control the access to the S3 buckets that store the application data34. Bucket policies can specify the conditions under which the requests are allowed or denied, such as the source IP address, the encryption status, the request time, etc.34. Bucket policies can also enforce encryption in transit and at rest for the data in S334.
References :=
1: AWS PrivateLink
2: AWS PrivateLink FAQs
3: Using Bucket Policies and User Policies
4: Bucket Policy Examples


NEW QUESTION # 29
......

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