View Full Cisco CCNP Enterprise 300-440 Exam Dumps  and Practice Test Dumps

 

Question 41. An enterprise is evaluating a cloud connectivity architecture that must support predictable application performance, redundant connections, and defined service-level objectives. Which combination of requirements should influence the design?

1. DNS records, hostnames, and endpoint naming
2. Bandwidth, resiliency, QoS, and SLA requirements
3. Console access and device labeling
4. DHCP lease duration and local ARP timers

Correct Answer: 2. Bandwidth, resiliency, QoS, and SLA requirements

Explanation :-

Cloud connectivity should be designed around measurable business and technical requirements. Bandwidth determines whether the connection can support expected traffic, while resiliency addresses failure scenarios and redundant paths. QoS requirements become important when applications have different performance needs, and service-level objectives help define expected availability and performance. These requirements should be considered together before selecting Internet-based VPN, dedicated connectivity, SD-WAN, or another architecture. DNS records, DHCP leases, and device naming can be operational considerations but do not provide the primary basis for selecting a cloud connectivity architecture.

Question 42. A network architect wants to connect a Cisco IOS XE router to a cloud VPN service using IKEv2. Which technology provides the protected data-plane tunnel after the security associations are negotiated?

1. OSPF
2. BGP
3. GRE
4. IPsec

Correct Answer: 4. IPsec

Explanation :-

IKEv2 is used to negotiate and establish security associations for IPsec. Once the negotiation succeeds, IPsec provides protection for the data traffic by applying authentication, integrity, and encryption services according to the negotiated security parameters. Routing protocols such as BGP or OSPF may operate across an appropriate tunnel or connectivity architecture, but they do not provide the underlying encryption. GRE can provide tunneling but does not inherently encrypt traffic. Therefore, IPsec is the technology responsible for protecting the data plane in the described IKEv2-based VPN design.

Question 43. An enterprise uses BGP for cloud route exchange. The cloud provider requires only selected internal prefixes to be advertised. Which configuration approach provides appropriate control?

1. Apply prefix filtering to outbound BGP advertisements
2. Advertise every route in the routing table
3. Disable BGP route selection
4. Replace BGP with DHCP

Correct Answer: 1. Apply prefix filtering to outbound BGP advertisements

Explanation :-

Outbound BGP filtering allows the enterprise to control exactly which prefixes are advertised to the cloud provider. Prefix lists, route maps, and related policy mechanisms can be used to permit approved networks while preventing unintended routes from being propagated. Advertising every route can create unnecessary routing exposure and may violate the cloud provider’s requirements. Disabling BGP route selection does not solve advertisement control, and DHCP is not a replacement for interdomain route exchange. Carefully scoped route advertisements are an important part of secure and predictable cloud routing.

Question 44. A company uses Cisco Catalyst SD-WAN and wants cloud application traffic to use the most appropriate available path based on network conditions. Which capability is most relevant?

1. Static VLAN assignment
2. DHCP relay
3. Application-aware path selection
4. MAC address filtering

Correct Answer: 3. Application-aware path selection

Explanation :-

Application-aware path selection allows SD-WAN to make forwarding decisions based on application requirements and available network-path characteristics. This can help direct cloud application traffic through a path that satisfies defined performance or policy requirements. Depending on the design, criteria can include latency, loss, jitter, availability, and application classification. Static VLAN assignment and DHCP relay perform different network functions, while MAC filtering does not provide WAN path optimization. The capability is particularly useful when different applications require different connectivity characteristics.

Question 45. An organization is considering backhauling all branch-to-cloud traffic through its headquarters. Which potential disadvantage should be evaluated?

1. Increased dependency on the central site and additional latency
2. Automatic improvement in application performance
3. Elimination of WAN bandwidth requirements
4. Guaranteed direct cloud connectivity

Correct Answer: 1. Increased dependency on the central site and additional latency

Explanation :-

Backhauling branch-to-cloud traffic through a central headquarters can introduce additional network hops and latency while increasing the dependency on the central site’s WAN and Internet infrastructure. During high utilization or a central-site outage, cloud applications may be affected even when the branch has an otherwise viable direct path. Centralized security inspection may justify backhaul in some architectures, so the decision should balance security, compliance, performance, availability, and operational requirements. The architect should evaluate whether direct or optimized cloud connectivity is more appropriate for the organization’s requirements.

Question 46. A cloud VPN tunnel is established between an enterprise router and the cloud, but traffic matching the intended subnet does not enter the tunnel. Which configuration area should be examined?

1. IPsec traffic selectors or crypto policy configuration
2. NTP authentication only
3. CDP neighbor information
4. DHCP server bindings

Correct Answer: 1. IPsec traffic selectors or crypto policy configuration

Explanation :-

An IPsec tunnel can have established security associations while traffic still fails to match the policies that determine which packets should be protected. The engineer should verify the configured local and remote networks, crypto policies, traffic selectors, ACLs where applicable, and the corresponding cloud VPN configuration. Mismatched selectors can prevent intended traffic from being encrypted even though the tunnel itself appears operational. NTP, CDP, and DHCP information do not normally determine whether application traffic matches the IPsec protection policy.

Question 47. An enterprise wants cloud connectivity that continues to function if one service provider experiences an outage. Which architecture should be evaluated?

1. Single provider with one circuit
2. Single cloud VPN endpoint only
3. Multi-provider connectivity
4. One static default route

Correct Answer: 3. Multi-provider connectivity

Explanation :-

Multi-provider connectivity can reduce dependency on a single service provider and improve resilience against provider-specific outages. The design can use independent transport services and appropriate routing mechanisms to select an alternate path when one provider becomes unavailable. The exact architecture depends on cloud-provider capabilities, routing requirements, cost, operational complexity, and business continuity objectives. A single circuit or single provider introduces a larger dependency on one connectivity source. A static default route by itself does not provide provider redundancy.

Question 48. A cloud-connected router has an active BGP neighbor, but the expected cloud prefixes are not appearing in the routing table. Which sequence is most appropriate for troubleshooting?

1. Replace the router immediately
2. Verify received routes, route policy, next-hop reachability, and route selection
3. Disable all security policies
4. Restart every endpoint

Correct Answer: 2. Verify received routes, route policy, next-hop reachability, and route selection

Explanation :-

An established BGP session confirms that the control-plane relationship exists, but it does not guarantee that every expected prefix is installed in the routing table. The engineer should verify what routes are actually received, whether inbound policies filter them, whether next-hop information is reachable, and whether another route is preferred. This approach isolates the routing problem without making unnecessary disruptive changes. Replacing the router, disabling security controls, or restarting endpoints can obscure the actual cause and should not be the first troubleshooting step.

Question 49. A business requires cloud connectivity for applications with strict latency requirements. Which design metric should receive particular attention when comparing available connectivity paths?

1. Latency
2. Device hostname length
3. VLAN description
4. DHCP lease time

Correct Answer: 1. Latency

Explanation :-

Latency measures the time required for traffic to travel between endpoints and can directly affect the performance of interactive and latency-sensitive applications. Cloud connectivity designs should consider latency alongside bandwidth, jitter, packet loss, resiliency, and service-level requirements. A path with sufficient bandwidth may still provide poor application performance if its latency is excessive. Hostname length, VLAN descriptions, and DHCP lease duration do not determine WAN path latency. SD-WAN policies can use measured path characteristics to help select suitable forwarding paths when the architecture supports such behavior.

Question 50. An administrator is diagnosing intermittent cloud connectivity and discovers that one redundant path is receiving a large amount of traffic after another path becomes unavailable. Which design characteristic is being tested?

1. DNS resolution
2. Failover capacity
3. VLAN segmentation
4. User authentication

Correct Answer: 4. Failover capacity

Explanation :-

Failover capacity determines whether the remaining connectivity paths can handle traffic when another path fails. A redundant design may technically provide availability while still experiencing congestion if the surviving link lacks sufficient capacity. Therefore, architects should evaluate not only whether alternate paths exist but also whether those paths can support expected traffic during failure conditions. Bandwidth planning, QoS, routing convergence, and application requirements should all be considered. DNS, VLAN segmentation, and user authentication do not directly determine whether a redundant WAN path can absorb additional traffic.

Question 51. A company wants to integrate an on-premises OSPF domain with BGP used toward a cloud provider. Which technique allows selected OSPF routes to be advertised through BGP?

1. NAT overload
2. VLAN trunking
3. Route redistribution
4. DHCP snooping

Correct Answer: 3. Route redistribution

Explanation :-

Route redistribution allows routes learned through one routing protocol to be introduced into another routing domain. In this case, selected OSPF routes can be redistributed into BGP and then advertised toward the cloud provider according to routing policy. Redistribution should be carefully controlled with filtering and route policies to avoid unintended advertisements and routing loops. NAT, VLAN trunking, and DHCP snooping serve different networking purposes and do not provide the required interprotocol route exchange.

Question 52. An enterprise wants to ensure that only approved cloud prefixes are accepted from a BGP peer. Which mechanism should be configured?

1. Inbound prefix filtering
2. DNS forwarding
3. Interface shutdown
4. ARP inspection

Correct Answer: 1. Inbound prefix filtering

Explanation :-

Inbound prefix filtering controls which routes a router accepts from a BGP neighbor. A prefix list or another suitable routing policy can permit approved cloud prefixes and reject unexpected or unauthorized advertisements. This helps protect the enterprise routing table from accidental or undesirable route propagation. DNS forwarding does not control BGP advertisements, while shutting down the interface eliminates connectivity rather than selectively controlling routes. ARP inspection is a Layer 2 security function and does not filter BGP prefixes.

Question 53. A company is designing a cloud connection for a critical application and requires defined availability targets from the connectivity service. Which factor should be included in the architecture evaluation?

1. SLA requirements
2. Console cable length
3. MAC address format
4. DNS cache size

Correct Answer: 4. SLA requirements

Explanation :-

Service-level agreements provide defined commitments regarding service availability and potentially other characteristics of a connectivity service. When cloud connectivity supports a critical application, the architect should compare provider SLAs with the application’s availability requirements and determine whether additional redundancy is necessary. An SLA alone does not guarantee end-to-end application availability, so architecture, routing, redundancy, and operational processes must also be considered. Console cables, MAC address formatting, and DNS cache size do not establish the service availability characteristics of a cloud connectivity provider.

Question 54. A network engineer needs to determine whether an IPsec tunnel is successfully carrying encrypted packets. Which evidence is most useful?

1. Interface description text
2. IPsec packet or byte counters
3. Device model number
4. Local DNS records

Correct Answer: 2. IPsec packet or byte counters

Explanation :-

IPsec packet and byte counters provide direct evidence that protected traffic is being processed through the security associations. When troubleshooting, the engineer can compare encrypted and decrypted counters while generating test traffic. If counters remain unchanged, traffic may not be matching the IPsec policy or may not be reaching the tunnel interface. If only one direction increases, the engineer can investigate routing, return paths, cloud-side configuration, or security policies. Interface descriptions, device model numbers, and DNS records do not provide equivalent evidence of encrypted traffic flow.

Question 55. A cloud connectivity design must support traffic separation between multiple business applications while using a common physical connection. Which technology area can help enforce differentiated treatment?

1. QoS and traffic classification
2. CDP neighbor discovery
3. NTP synchronization
4. DHCP address allocation

Correct Answer: 1. QoS and traffic classification

Explanation :-

QoS and traffic classification can identify different traffic categories and apply differentiated treatment over a shared physical connection. This is useful when multiple business applications have different performance requirements. Policies can classify traffic and apply appropriate marking, queuing, shaping, or scheduling behavior depending on the platform and architecture. CDP, NTP, and DHCP serve discovery, time synchronization, and address-assignment functions respectively. They do not provide mechanisms for prioritizing or differentiating application traffic across a congested cloud connectivity path.

Question 56. A company uses SD-WAN to connect branches to cloud workloads. The network team wants to restrict access to specific cloud applications according to security policy. Which capability should be evaluated?

1. Security policies and application-aware controls
2. Physical interface descriptions
3. DHCP address pools only
4. LLDP neighbor discovery

Correct Answer: 2. Security policies and application-aware controls

Explanation :-

SD-WAN environments can use security policies and application-aware capabilities to identify and control traffic according to business and security requirements. This can allow administrators to permit approved cloud applications while restricting unauthorized traffic. Application classification can support policy decisions, while security policies enforce the desired access behavior. Interface descriptions, DHCP pools, and LLDP provide operational or network-management functions but do not directly implement application-level cloud access controls.

Question 57. An architect is comparing a VPN over the Internet with a dedicated cloud connection. Which consideration is particularly important when evaluating the dedicated option?

1. Provider availability and supported cloud interconnection services
2. User desktop wallpaper
3. Endpoint keyboard layout
4. Local printer configuration

Correct Answer: 1. Provider availability and supported cloud interconnection services

Explanation :-

Dedicated cloud connectivity depends on the services and interconnection options supported by both the connectivity provider and the target cloud provider. Before selecting this architecture, the architect should verify geographic availability, supported cloud locations, service characteristics, bandwidth options, routing capabilities, redundancy, and contractual requirements. A dedicated connection may offer useful performance and availability characteristics, but its feasibility depends on actual provider capabilities. User desktop settings and printer configurations have no meaningful role in determining whether a dedicated cloud interconnection can be deployed.

Question 58. A cloud-connected IOS XE router receives routes through both OSPF and BGP. The administrator wants to avoid unintended route propagation between the protocols. What should be implemented?

1. Unrestricted mutual redistribution
2. Controlled redistribution with filtering and policy
3. Disable all routing protocols
4. Replace routing with DNS

Correct Answer: 2. Controlled redistribution with filtering and policy

Explanation :-

When routes are exchanged between routing protocols, uncontrolled redistribution can introduce unwanted prefixes, routing loops, or suboptimal paths. Controlled redistribution uses route maps, prefix lists, metrics, tags, and other policy mechanisms to ensure that only appropriate routes cross the protocol boundary. This is particularly important in cloud connectivity designs where enterprise and cloud routing domains may have different requirements. Disabling all routing protocols would remove required dynamic connectivity, while DNS cannot replace IP routing. Proper policy-based redistribution provides the necessary control.

Question 59. An enterprise wants to improve cloud application performance by selecting a path based on measured loss, latency, and jitter. Which networking architecture is particularly suited to this requirement?

1. Traditional unmanaged Layer 2 switching
2. Static DNS-based load distribution
3. Cisco Catalyst SD-WAN
4. DHCP relay

Correct Answer: 3. Cisco Catalyst SD-WAN

Explanation :-

Cisco Catalyst SD-WAN can use application-aware and performance-based policies to select WAN paths according to measured network conditions. Characteristics such as latency, packet loss, and jitter can be important when determining whether a path satisfies the requirements of a particular application. This enables more dynamic path selection than a simple static forwarding design. DNS-based load distribution does not directly measure WAN path performance for packet forwarding, while DHCP relay and Layer 2 switching address different network functions.

Question 60. An engineer is troubleshooting a cloud connection where the tunnel is established, routing appears correct, and packets leave the enterprise router, but the cloud application does not respond. Which troubleshooting strategy provides the most complete assessment?

1. Change the router hostname
2. Correlate enterprise forwarding, tunnel counters, security policies, and cloud-side routing
3. Disable all routing protocols
4. Replace the user’s workstation first

Correct Answer: 2. Correlate enterprise forwarding, tunnel counters, security policies, and cloud-side routing

Explanation :-

End-to-end cloud troubleshooting requires correlation across multiple layers rather than relying on a single tunnel or routing status indicator. The engineer should verify the forwarding decision, IPsec or SD-WAN tunnel counters, security-policy behavior, cloud-side routes, return paths, and application reachability. This helps identify whether packets are being dropped locally, incorrectly forwarded, rejected by a policy, or lost in the cloud environment. Changing hostnames or disabling routing protocols would not provide useful diagnostic evidence, while replacing an endpoint prematurely could obscure the actual network problem.