2024 Realistic 300-440 Dumps are Available for Instant Access [Q24-Q46]

2024 realistische 300-440 Dumps sind für sofortigen Zugriff verfügbar [Q24-Q46]

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2024 Realistic 300-440 Dumps are Available for Instant Access

Download Exam 300-440 Practice Test Questions with 100% Verified Answers

NR. 24 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?

hub-and-spoke topology using MPLS with static routing and dedicated bandwidth for QoS

star topology with internet-based VPN connections and BGP for routing

hybrid topology that combines MPLS and SD-WAN

fully meshed topology with SD-WAN technology using dynamic routing and prioritized traffic for QoS

NR. 25 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?

VPC peering and bucket policies

specific routing and bucket policies

EC2 super policies and specific routing policies

gateway load balancers and specific routing policies

NR. 26 Which Microsoft Azure service enables a dedicated and secure connection between an on-premises infrastructure and Azure data centers through a colocation provider?

Azure Private Link

Azure ExpressRoute

Azure Virtual Network

Azure Site-to-Site VPN

NR. 27 An engineer must enable the OMP advertisement of BGP routes for a specific VRF instance on a Cisco IOS XE SD-WAN device. What should be configured after the global address-family ipv4 is configured?

Set the VRF-specific route advertisements.

Enable bgp advertisement.

Enter sdwan mode.

Disable bgp advertisement.

NR. 28 Siehe dazu die Abbildung.

Refer to the exhibits. An engineer troubleshoots a Cisco SD-WAN connectivity issue between an on-premises data center WAN Edge and a public cloud provider WAN Edge. The engineer discovers that BFD is Dapping on vEdge1. What is the problem?

The remote Edge device BFD is down.

The remote Edgedevice failed to respond BFD keepalives.

The remote Edge device has a duplicate IP address.

The control plane deleted the BFD session.

BFD (Bidirectional Forwarding Detection) is a protocol that detects failures in the overlay tunnel between Cisco SD-WAN devices. BFD packets are sent and received periodically by each device to check the liveliness and quality of the connection. If a device does not receive a BFD packet from its peer within a specified timeout interval, itconsiders the peer to be unreachable and reports a BFD down event. This event triggers a control connection state change and a possible route change in the SD-WAN fabric.
In this scenario, the engineer discovers that BFD is flapping on vEdge1, which means that the BFD session between vEdge1 and the remote Edge device is going up and down repeatedly. This indicates a connectivity issue between the two devices, such as network congestion, packet loss, or misconfiguration. The most likely cause of the problem is that the remote Edge device failed to respond BFD keepalives within the timeout interval, which resulted in a BFD timeout event on vEdge1. This event caused vEdge1 to mark the remote Edge device as down and notify the control plane. The control plane then tried to establish a new BFD session with the remote Edge device, which may have succeeded or failed depending on the network condition. This cycle of BFD session creation and deletion caused the BFD flapping on vEdge1.
The other options are less likely to be the cause of the problem. Option A is incorrect because if the remote Edge device BFD was down, vEdge1 would not receive any BFD packets from it and would not flap. Option C is incorrect because if the remote Edge device had a duplicate IP address, vEdge1 would not be able to establish a BFD session with it in the first place. Option D is incorrect because the control plane does not delete the BFD session unless there is a configuration change or a port-hop event on the device. References: Bidirectional Forwarding Detection Flap-Reason Definitions on Cisco vEdge Routers, Cisco Catalyst SD-WAN BFD, Cisco SD WAN: BFD (Bidirectional Forwarding Detection)

NR. 29 A company with multiple branch offices wants a connectivity model to meet its network architecture requirements. The company focuses on ensuring low latency and efficient routing for its critical business applications. Which connectivity model meets these requirements?

hub-and-spoke topology with SD-WAN technology, using dynamic routing and OSPF as the routing protocol

fully meshed topology with SD-WAN technology, using dynamic routing and BGP as the routing protocol

point-to-point topology using dedicated leased lines and static routing

star topology with internet-based VPN connections and static routing

NR. 30 An engineer must configure a CLI add-on feature template in Cisco vManage for enhanced policy-based routing (ePBR) for IPv4. These configurations were deleted:
* licensing config enable false
* licensing config privacy hostname true
* licensing config privacy version false
* licensing config utility utility-enable true
Drag and drop the steps from the left onto the order on the right to complete the configuration.

NR. 31 Siehe dazu die Abbildung.

A company uses Cisco SD-WAN in the data center. All devices have the default configuration. An engineer attempts to add a new centralized control policy in Cisco vManage but receives an error message. What is the problem?

A centralized control policy is already applied to the specific site ID and direction

The policy for “Hub” should be applied in the outbound direction, and the policy for “All-Site” should be applied inbound.

Apply an additional outbound control policy to override the site ID overlaps.

Site-list “All-Site” should be configured with a new match sequence that is lower than the sequence for site-list “Hub*.

NR. 32 An engineer needs to configure enhanced policy-based routing (ePBR) for IPv4 by using Cisco vManage.
Drag and drop the steps from the left onto the order on the right to complete the configuration of the ePBR using the CLI add-on template.

NR. 33 Siehe dazu die Abbildung.

A network engineer discovers that the policy that is configured on an on-premises Cisco WAN edge router affects only the route tables of the specific devices that are listed in the site list. What is the problem?

An inbound policy must be applied.

The action must be set to deny

A localized data policy must be configured.

A centralized data policy must be configured

NR. 34 Which architecture model establishes internet-based connectivity between on-premises networks and AWS cloud resources?

That establishes an iPsec VPN tunnel with Internet Key Exchange (IKE) for secure key negotiation and encrypted data transmission

That relies on AWS Elastic Load Balancing (ELB) for traffic distribution and uses SSL/TLS encryption for secure data transmission.

That employs AWS Direct Connect for a dedicated network connection and uses private IP addresses tor secure communication.

That uses Amazon CloudFrontfor caching and distributing content globally and uses HTTPS for secure data transfer.

The architecture model that establishes internet-based connectivity between on-premises networks and AWS cloud resources is the one that establishes an iPsec VPN tunnel with Internet Key Exchange (IKE) for secure key negotiation and encrypted data transmission. This model is also known as the VPN CloudHub model12. It allows multiple remote sites to connect to the same virtual private gateway in AWS, creating a hub-and-spoke topology1. The VPN CloudHub model provides the following benefits12:
It enables secure communication between remote sites and AWS over the public internet, using encryption and authentication protocols such as IPsec and IKE.
It supports dynamic routing protocols such as BGP, which can automatically adjust the routing tables based on the availability and performance of the VPN tunnels.
It allows for redundancy and load balancing across multiple VPN tunnels, increasing the reliability and throughput of the connectivity.
It simplifies the management and configuration of the VPN connections, as each remote site only needs to establish one VPN tunnel to the virtual private gateway in AWS, rather than multiple tunnels to different VPCs or regions.
The other options are not correct because they do not establish internet-based connectivity between on-premises networks and AWS cloud resources. Option B relies on AWS Elastic Load Balancing (ELB) for traffic distribution and uses SSL/TLS encryption for secure data transmission. However, ELB is a service that distributes incoming traffic across multiple targets within a VPC, not across different networks3. Option C employs AWS Direct Connect for a dedicated network connection and uses private IP addresses for secure communication. However, AWS Direct Connect is a service that establishes a private connection between on-premises networks and AWS, bypassing the public internet4. Option D uses Amazon CloudFront for caching and distributing content globally and uses HTTPS for secure data transfer. However, Amazon CloudFront is a service that delivers static and dynamic web content to end users, not to on-premises networks5.
Referenzen:
1: Designing and Implementing Cloud Connectivity (ENCC, Track 1 of 5)
2: Cisco ASA Site-to-Site VPN
3: What Is Elastic Load Balancing?
4: What is AWS Direct Connect?

NR. 35 Which feature is unique to Cisco SD-WAN IPsec tunnels compared to native IPsec VPN tunnels?

real-time dynamic path selection

tunneling protocols

end-to-end encryption

authentication mechanisms

NR. 36 An engineer must edit the settings of a site-to-site IPsec VPN connection between an on-premises Cisco IOS XE router and Amazon Web Services (AWS). IPsec must be configured to support multiple peers and failover after 120 seconds of idle time on the first entry of the crypto map named Cisco. Drag and drop the commands from the left onto the order on the right.

Erläuterung:
Step 1 = crypto map cisco 1 ipsec-isakmp Step 2 = set peer 192.168.10.1 default Step 3 = set peer
192.168.20.1 Step 4 = set security-association idle-time 120 default
The process of editing the settings of a site-to-site IPsec VPN connection between an on-premises Cisco IOS XE router and Amazon Web Services (AWS), and configuring IPsec to support multiple peers and failover after 120 seconds of idle time on the first entry of the crypto map named Cisco involves several steps123456.
crypto map cisco 1 ipsec-isakmp: This command is used to create a new entry in the crypto map named
“cisco”. The “1” is the sequence number of the entry, and “ipsec-isakmp” specifies that the IPSec security associations (SAs) should be established using the Internet Key Exchange (IKE) protocol13.
set peer 192.168.10.1 default: This command is used to specify the IP address of the default peer for the crypto map entry. In this case, the default peer is at IP address 192.168.10.115.
set peer 192.168.20.1: This command is used to add an additional peer to the crypto map entry. In this case, the additional peer is at IP address 192.168.20.1. This allows the IPsec VPN to support multiple peers56.
set security-association idle-time 120 default: This command is used to set the idle time for the security association. If no traffic is detected over the VPN for the specified idle time (in this case, 120 seconds), the security association is deleted, and the VPN connection fails over to the next peer46.
References :=
Configure a Site-to-Site IPSec IKEv1 Tunnel Between an ASA and a Cisco IOS Router – Cisco Configure IOS-XE Site-to-Site VPN Connection to Amazon Web Services – Cisco Community Configuring Site to Site IPSec VPN Tunnel Between Cisco Routers Configure Failover for IPSec Site-to-Site Tunnels with Backup ISP Links on FTD Managed by FMC – Cisco Does Setting Multiple Peers in a Crypto Map Also Support Parallel IPSec Connections – Cisco Community Multiple WAN Connections – IPsec in Multi-WAN Environments | pfSense Documentation Multiple Set Peer for VPN Failover – Server Fault

NR. 37 Drag and drop the commands from the left onto the purposes on the right to identify issues on a Cisco IOS XE SD-WAN device.

NR. 38 A company has multiple branch offices across different geographic locations and a centralized data center. The company plans to migrate Its critical business applications to the public cloud infrastructure that is hosted in Microsoft Azure. The company requires high availability, redundancy, and low latency for its business applications. Which connectivity model meets these requirements?

ExpressRoute with private peering using SDCI

hybrid connectivity with SD-WAN

AWS Direct Connect with dedicated connections

site-to-site VPN with Azure VPN gateway

NR. 39 An engineer must configure cloud connectivity with Cisco Umbrella Secure Internet Gateway (SIG) in active/backup mode. The engineer already configured the SIG Credentials and SIG Feature Templates. Drag and drop the steps from the left onto the order on the right to complete the configuration.

Cisco 300-440 Exam Syllabus Topics:

Thema	Einzelheiten
Thema 1	SD-WAN Cloud Connectivity: Questions about configuration of SD-WAN-based cloud connectivity using Cisco infrastructure appear in this topic. Furthermore, it discusses configuration of Cisco SD-WAN OnRamp, configuration for connecting to a SaaS cloud provider, and configuration of Cisco SD-WAN policies to address traffic.
Thema 2	Operation: The topic delves into diagnosis of IPsec-based secure cloud connectivity between an on-premises native Cloud endpoints and Cisco IOS XE router. It also explains the diagnosis of routing issues on Cisco IOS XE routers, and diagnosis of Cisco SD-WAN policy issues, focusing on all the traffic.
Thema 3	Architecture Models: In this topic different aspects of connectivity to cloud providers are discussed. It focuses on AWS, Azure, and Google Cloud. Moreover, the topic explains private connectivity to leading cloud providers and connectivity options for Software as a Service (SaaS) cloud providers.
Thema 4	Design: Questions about cloud-native security policies for AWS, Azure, and Google Cloud appear in this topic. It also recommends connectivity models that ensure high availability, resiliency, SLAs, and reliability. Furthermore, the topic delves into connectivity models based on network architecture requirements. The topic further discusses factors including bandwidth, QoS, dedicated vs shared connections and multi-homing.
Thema 5	IPsec Cloud Connectivity: The configuration of IPsec-based secure cloud connectivity is one of the focal points of this topic. Additionally, it delves into configuration of IPsec-based secure cloud connectivity between an on-premises Cisco IOS XE router and native Azure, AWS, and Google Cloud endpoints. Lastly, the topic discusses configuration of routing on Cisco IOS XE routers.