Cisco 300-440 Designing and Implementing Cloud Connectivity (ENCC) Exam Practice Test

• 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]

Enhanced Policy-Based Routing (ePBR) is used to direct packets that arrive at an interface to a specified next-hop. It is very useful in managing a large number of configured access lists more efficiently. In ePBR, the router drops the traffic packets if the next hop configured in the PBR policy is not reachable. To avoid packet loss in such scenarios, you must configure multiple next hops for each access control entry.

Here are the steps to configure ePBR for IPv4 using Cisco vManage:

• Configure an extended ACL: This step involves defining the network or the host. For example, you can permit IPv4 traffic from any source to specific hosts.
• Configure a class map that matches the ACL: Class maps match the parameters in the ACLs. For instance, you can create a class map of type traffic and match it with the previously created ACL.
• Configure the policy map with the action to set the next hop: Policy maps with ePBR then take detailed actions based on the set statements configured. You can configure an ePBR policy map with the class map and set the next hop.
• Apply the service policy on the interface: Finally, you apply the ePBR policy map to the interface. For example, you can apply the policy map to a GigabitEthernet interface.

References :=

• Implementing Enhanced Policy Based Routing - Cisco
• Cisco Catalyst SD-WAN Policies Configuration Guide, Cisco IOS XE
• How to configure PBR - Cisco Community

The role of service providers to establish private connectivity between on-premises networks and Google Cloud resources is to facilitate direct, dedicated network connections through Google Cloud Interconnect. Google Cloud Interconnect is a service that allows customers to connect their on-premises networks to Google Cloud through a service provider partner. This provides low latency, high bandwidth, and secure connectivity to Google Cloud services, such as Google Compute Engine, Google Cloud Storage, and Google BigQuery. Google Cloud Interconnect also supports hybrid cloud scenarios, such as extending on-premises networks to Google Cloud regions, or connecting multiple Google Cloud regions together. Google Cloud Interconnect offers two types of connections: Dedicated Interconnect and Partner Interconnect. Dedicated Interconnect provides physical connections between the customer’s network and Google’s network at a Google Cloud Interconnect location. Partner Interconnect provides virtual connections between the customer’s network and Google’s network through a supported service provider partner. Both types of connections use VLAN attachments to establish private connectivity to Google Cloud Virtual Private Cloud (VPC) networks. References:

• Designing and Implementing Cloud Connectivity (ENCC) v1.0
• [Google Cloud Interconnect Overview]
• [Google Cloud Interconnect Documentation]

Step 1 = Navigate to Configuration, select Templates, and then select Device Templates. Step 2 = Click Create Template, select From Feature Template, and then select the device model. Step 3 = Select Device, select Service Node, and then set Template Name and Description. Step 4 = Attach the device template to the device.

The process of configuring an AppGoE service node for WAN optimization for applications that are hosted in the cloud using Cisco vManage for C8000V or C8500L-8S4X devices involves several steps12.

• Navigate to Configuration, select Templates, and then select Device Templates: This is the first step where you navigate to the Templates section in the Configuration menu of Cisco vManage1.
• Click Create Template, select From Feature Template, and then select the device model: In this step, you create a new template for the device model from the feature template1.
• Select Device, select Service Node, and then set Template Name and Description: After setting up the template, you select the device and the service node, and then set the template name and description1.
• Attach the device template to the device: Finally, you attach the created device template to the device1.

References :=

• AppQoE - Step-by-Step Configuration - Cisco Community
• Cisco Catalyst SD-WAN AppQoE Configuration Guide, Cisco IOS XE Catalyst SD-WAN Release 17.x

The process of configuring a Cisco SD-WAN Cloud Interconnect with Equinix involves several steps.

• Ensure that you have UUIDs for the required number of Cisco SD WAN Virtual Edge instances that you want to deploy as Interconnect Gateways: This is the first step where you ensure that you have the necessary UUIDs for the Cisco SD-WAN Virtual Edge instances that you want to deploy.
• Create the necessary network segments: After ensuring the availability of UUIDs, you create the necessary network segments.
• Attach Cisco SD-WAN Virtual Edge to the Equinix device template: After setting up the network segments, you attach the Cisco SD-WAN Virtual Edge to the Equinix device template.
• Create the Interconnect Gateway at the Equinix location that is closest to your SD-WAN branch location: Finally, you create the Interconnect Gateway at the Equinix location that is closest to your SD-WAN branch location.

References :=

• [Cisco SD-WAN Cloud Interconnect with Equinix]
• [Cisco SD-WAN Cloud OnRamp for CoLocation Deployment Guide]

 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]

• Display the time and process information of the device, as well as CPU, memory, and disk usage data. = show sdwan system status1
• Validate the configured zone-based firewall. = show policy-firewall config1
• Display information about application-aware routing policy matched packet counts on the Cisco IOS XE SD-WAN devices. = show sdwan policy app-route-policy-filter1
• View the security information that is configured for IPsec tunnel connections. = show sdwan security-info

The commands used to identify issues on a Cisco IOS XE SD-WAN device are as follows1:

• show sdwan system status: This command is used to display the time and process information of the device, as well as CPU, memory, and disk usage data1.
• show policy-firewall config: This command is used to validate the configured zone-based firewall1.
• show sdwan policy app-route-policy-filter: This command is used to display information about application-aware routing policy matched packet counts on the Cisco IOS XE SD-WAN devices1.
• show sdwan security-info: This command is used to view the security information that is configured for IPsec tunnel connections1.

References :=

• Cisco IOS XE Catalyst SD-WAN Qualified Command Reference
• Cisco Catalyst SD-WAN Command Reference
• Cisco Catalyst SD-WAN Systems and Interfaces Configuration Guide, Cisco IOS XE
• SD-WAN Tunnel Interface Commands - Cisco

To send traffic into an IPsec tunnel to the cloud VPN gateway, the engineer must configure two actions:

• Configure access lists that match the interesting user traffic. This is the traffic that needs to be encrypted and sent over the IPsec tunnel. The access lists are applied to the crypto map that defines the IPsec parameters for the tunnel.
• Configure policy-based routing (PBR). This is a technique that allows the engineer to override the routing table and forward packets based on a defined policy. PBR can be used to send specific traffic to the IPsec tunnel interface, regardless of the destination IP address. This is useful when the cloud VPN gateway has a dynamic IP address or when multiple cloud VPN gateways are available for load balancing or redundancy. References:
• Designing and Implementing Cloud Connectivity (ENCC) v1.0, Module 3: Implementing Cloud Connectivity, Lesson 3: Implementing IPsec VPNs to the Cloud, Topic: Configuring IPsec VPNs on Cisco IOS XE Routers
• Security for VPNs with IPsec Configuration Guide, Cisco IOS XE, Chapter: Configuring IPsec VPNs, Topic: Configuring Crypto Maps
• [Cisco IOS XE Gibraltar 16.12.x Feature Guide], Chapter: Policy-Based Routing, Topic: Policy-Based Routing Overview

 Cisco SD-WAN IPsec tunnels are different from native IPsec VPN tunnels in several ways. One of the unique features of Cisco SD-WAN IPsec tunnels is that they support real-time dynamic path selection, which means that they can automatically choose the best path for each application based on the network conditions and policies. This feature improves the performance, reliability, and efficiency of the network traffic. Native IPsec VPN tunnels, on the other hand, do not have this capability and rely on static routing or manual configuration to select the path for each tunnel. This can result in suboptimal performance, increased latency, and higher costs. References := Traditional IPsec Versus Cisco SD-WAN IPsec, SD-WAN vs IPsec VPN’s - What’s the difference?, SD-WAN vs. VPN: How Do They Compare?, Traditional IPSEC Versus SD-WAN IPSEC

A fully meshed topology with SD-WAN technology, using dynamic routing and BGP as the routing protocol, meets the requirements of the company because it provides the following benefits:

• It allows direct and secure connectivity between any two branch offices, without the need for a central hub or intermediary devices12. This reduces the latency and improves the performance of the critical business applications.
• It leverages SD-WAN technology to optimize the traffic flow and application quality of service (QoS) across the WAN13. SD-WAN can dynamically select the best path for each application based on the network conditions and policies13. SD-WAN can also provide redundancy, security, and visibility for the WAN13.
• It uses dynamic routing and BGP as the routing protocol to exchange routing information and establish connectivity between the branch offices14. BGP is a scalable and flexible protocol that can support multiple address families, such as IPv4 and IPv6, and multiple routing policies, such as local preference and route filtering14. BGP can also enable seamless integration with the cloud service providers (CSPs) and internet service providers (ISPs)14.

References :=

• 1: Designing and Implementing Cloud Connectivity (ENCC, Track 1 of 5) (Cisco U. login required)
• 2: Cisco SD-WAN Design Guide

 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