View Full Cisco CCNP Security 300-745 Exam Dumps and Practice Test Dumps.

Q281. An enterprise has two Internet providers and wants externally hosted security services to remain reachable if either provider fails. Which design most improves edge resiliency?

1. Use one static default route through a single provider
   2. Disable routing failover
   3. Place all services behind one physical firewall with one uplink
   4. Use redundant edge devices and diverse upstream connectivity

Correct Answer: 4. Use redundant edge devices and diverse upstream connectivity

Explanation: Resilient Internet-edge architecture should avoid single points of failure in routers, firewalls, circuits, and upstream providers. Redundant edge devices combined with diverse provider connectivity allow traffic to continue flowing when a device, circuit, or provider experiences an outage. Appropriate routing, health checks, state synchronization, and failover mechanisms are also required. A single firewall or single-provider default route leaves the organization dependent on one failure domain. Resilience is especially important when external VPN, SaaS, public application, DNS, or security services depend on continuous Internet reachability.

Q282. A router receives a BGP advertisement containing far more prefixes than expected from a business partner. Which safeguard can automatically protect the routing table from this condition?

1. DHCP snooping
   2. Maximum-prefix limit
   3. DNSSEC validation
   4. MAC address filtering

Correct Answer: 2. Maximum-prefix limit

Explanation: A BGP maximum-prefix limit defines how many routes a peer is expected to advertise. If the number exceeds the configured threshold, the router can generate warnings or terminate the peering session depending on policy. This helps protect against accidental route leaks or misconfigurations that could overwhelm routing resources or introduce unexpected reachability. Maximum-prefix controls should complement explicit prefix filtering, route-policy validation, peer authentication, and RPKI where applicable. DHCP snooping protects DHCP operations, DNSSEC protects DNS integrity, and MAC filtering does not control the number of routes received from a BGP neighbor.

Q283. A company wants to ensure that employees connecting to corporate Wi-Fi authenticate individually instead of sharing one wireless password. Which design is most appropriate?

1. WPA3-Enterprise with 802.1X authentication
   2. One shared WPA personal passphrase
   3. Open wireless with no authentication
   4. MAC address allowlisting only

Correct Answer: 1. WPA3-Enterprise with 802.1X authentication

Explanation: WPA3-Enterprise with 802.1X allows each user or managed device to authenticate individually through an enterprise identity system rather than relying on a shared wireless password. Certificate-based EAP methods can provide strong mutual authentication and reduce password-related risks further. Individual authentication also improves logging, access policy, and revocation when employees leave the organization. Shared preshared keys are difficult to rotate and can spread widely. MAC addresses can be spoofed and should not serve as the primary identity mechanism. Enterprise wireless authentication therefore offers stronger identity assurance and centralized policy enforcement.

Q284. Network engineers use automation to configure routers through APIs. Which protocol design is preferable for protecting the management session?

1. Plain HTTP from every subnet
   2. Telnet with shared passwords
   3. Authenticated and encrypted management APIs over TLS or SSH
   4. Anonymous API access

Correct Answer: 3. Authenticated and encrypted management APIs over TLS or SSH

Explanation: Infrastructure automation interfaces are part of the management plane and require the same strong protection as interactive administration. Management APIs should use encrypted protocols such as HTTPS/TLS or SSH-based transports, authenticate the automation identity, and authorize only required operations. Access should also be restricted to approved management networks or systems and logged for audit purposes. Plain HTTP and Telnet expose sensitive management traffic. Anonymous APIs eliminate accountability and allow unauthorized configuration changes. Secure APIs should use narrowly scoped service identities rather than unrestricted shared credentials.

Q285. A company allows remote employees to use split-tunnel VPNs. Which risk should the architect specifically evaluate?

1. The endpoint can simultaneously access the Internet and private corporate resources
   2. Split tunneling automatically disables encryption to corporate systems
   3. Split tunneling prevents Internet access completely
   4. The VPN no longer requires user authentication

Correct Answer: 1. The endpoint can simultaneously access the Internet and private corporate resources

Explanation: Split tunneling sends private enterprise traffic through the VPN while allowing other traffic to use the user’s local Internet connection directly. This can reduce VPN bandwidth consumption and improve SaaS performance, but the endpoint becomes connected to both trusted and untrusted networks simultaneously. If the endpoint is compromised, this may create an additional path toward corporate resources. Architects should evaluate endpoint protection, host firewalling, DNS security, device posture, route controls, and zero-trust alternatives. Split tunneling does not inherently remove encryption or authentication for private resources; the concern is the dual connectivity and resulting attack surface.

Q286. A security architect wants employees browsing high-risk websites to view content without allowing active web code to execute directly on their endpoints. Which technology best supports the requirement?

1. DHCP relay
   2. GRE tunneling
   3. Route filtering
   4. Remote browser isolation

Correct Answer: 4. Remote browser isolation

Explanation: Remote browser isolation executes web content in a remote isolated environment rather than directly on the user’s endpoint. The user receives a safe rendering or controlled representation of the browsing session. Potentially malicious scripts, exploits, and active content remain separated from the local device. This can be useful for risky or uncategorized sites and can complement secure web gateways, DNS security, and endpoint protection. GRE, route filtering, and DHCP relay do not isolate browser execution. Browser isolation can reduce endpoint exposure while still allowing users to access web content required for business purposes.

Q287. A company wants to stop employees from uploading source code to an unapproved public generative AI service. Which control most directly supports this policy?

1. Static routing
   2. DLP integrated with web or cloud-access controls
   3. BGP authentication
   4. Port mirroring only

Correct Answer: 2. DLP integrated with web or cloud-access controls

Explanation: Data Loss Prevention can recognize sensitive information such as source code, regulated data, confidential documents, or classified content and apply policy when users attempt to upload that information to web or cloud services. Integrating DLP with secure web gateways, CASB, SSE, or endpoint controls can provide enforcement across multiple access paths. Static routing and BGP authentication do not inspect business data. Port mirroring provides visibility but does not inherently block transfers. DLP is therefore well suited to preventing unauthorized disclosure of confidential information to public AI platforms or other unsanctioned services.

Q288. A company uses a service mesh for microservices. Which policy best follows zero-trust principles for east-west communication?

1. Allow every service to call every other service
   2. Trust requests solely because they originate inside the cluster
   3. Authenticate workload identities and explicitly authorize required service-to-service calls
   4. Disable service-to-service encryption

Correct Answer: 3. Authenticate workload identities and explicitly authorize required service-to-service calls

Explanation: Zero-trust microservice architecture requires each workload to prove its identity and receive explicit authorization for the requested service interaction. A service mesh can issue workload certificates, establish mutual TLS, and enforce policies stating which service identities may call specific destinations and methods. Internal location alone should not imply trust because a compromised workload can otherwise move laterally. Broad allow policies undermine segmentation, while disabling encryption exposes service traffic. Identity-aware service authorization creates a more precise and scalable security boundary than trusting all traffic within the cluster.

Q289. A Kubernetes administrator wants to prevent containers from running with unrestricted Linux capabilities. Which security approach is best?

1. Add every available capability to every container
   2. Run all workloads in privileged mode
   3. Disable workload isolation
   4. Drop unnecessary Linux capabilities and grant only those explicitly required

Correct Answer: 4. Drop unnecessary Linux capabilities and grant only those explicitly required

Explanation: Linux capabilities divide traditional root privileges into smaller units. Containers should normally drop unnecessary capabilities and receive only those required for their legitimate function. This reduces the impact of application compromise by limiting what the process can do at the operating-system level. Privileged mode and broad capability grants undermine container isolation and expand access to the host. Capability reduction should be combined with non-root execution, read-only filesystems, seccomp, mandatory access controls, trusted images, and workload segmentation. Least privilege applies to operating-system privileges just as it does to cloud identities and network policy.

Q290. A company exposes a public API used by paying customers. It wants compromised API keys to be unable to generate unlimited expensive backend requests. Which architecture is most appropriate?

1. Per-client quotas and rate limits enforced at the API edge
   2. Unlimited requests for every authenticated client
   3. Disable request logging
   4. Give every API key administrator privileges

Correct Answer: 1. Per-client quotas and rate limits enforced at the API edge

Explanation: Authentication identifies the caller but does not prevent a compromised or abusive credential from generating excessive traffic. Per-client quotas and rate limits constrain request volume and can protect backend resources, control cost, and limit brute-force or denial-of-service behavior. API gateways commonly apply these controls based on identity, token, subscription, or endpoint. Logging should remain enabled so abuse can be investigated. Administrator privileges are unnecessary for ordinary clients and increase risk. Rate controls should be combined with authentication, authorization, schema validation, monitoring, and scalable backend design.

Q291. A SOC analyst is reconstructing a multi-stage attack and needs to correlate endpoint, firewall, identity, and cloud events by time. Which infrastructure requirement is particularly important?

1. Disable NTP on all devices
   2. Use different time zones without recording offsets
   3. Consistent and trusted time synchronization across systems
   4. Delete timestamps before forwarding logs

Correct Answer: 3. Consistent and trusted time synchronization across systems

Explanation: Incident reconstruction depends on accurate timestamps. If endpoint, network, identity, and cloud systems have inconsistent clocks, analysts may incorrectly interpret event sequence and causality. Trusted time synchronization allows events from different sources to be correlated reliably in SIEM and forensic workflows. Time sources should be protected against unauthorized modification because an attacker who changes system clocks can complicate investigation. Different display time zones are manageable when offsets are recorded consistently, but inaccurate clocks are far more problematic. Logging architecture should therefore include reliable and secure time synchronization as a foundational dependency.

Q292. An alert indicates that a privileged user account performed an unusual administrative action. Which additional data is most useful for deciding whether the activity is malicious?

1. The color of the user’s desktop background
   2. Identity history, device context, change tickets, and related endpoint activity
   3. Printer toner level
   4. Office seating location only

Correct Answer: 2. Identity history, device context, change tickets, and related endpoint activity

Explanation: Administrative activity must be interpreted in context. An unusual action may be legitimate if associated with an approved change and trusted administrative workstation, or malicious if it occurs from an unfamiliar device after suspicious authentication behavior. Identity history, endpoint telemetry, privileged-session records, change tickets, and network activity can help analysts distinguish these cases. One isolated log entry rarely provides enough context. Correlating multiple independent sources improves confidence and reduces false positives. Irrelevant user-interface or office information does not provide the technical evidence required for a reliable security decision.

Q293. A security team discovers that a compromised API token has a one-year lifetime. Which design modification most directly reduces future exposure?

1. Use shorter-lived tokens with revocation and rotation mechanisms
   2. Make tokens permanent
   3. Share tokens between applications
   4. Disable token validation

Correct Answer: 1. Use shorter-lived tokens with revocation and rotation mechanisms

Explanation: Long-lived bearer tokens remain useful to attackers for an extended period after compromise. Shorter expiration times reduce that window, while revocation and rotation provide mechanisms to invalidate credentials when suspicious activity is detected. Refresh tokens or workload identity mechanisms can provide usability without requiring extremely long-lived access tokens. Tokens should also be scoped by audience and permissions. Sharing credentials between applications makes attribution and revocation more difficult. Token validation must remain mandatory. Credential lifetime is an important component of API and identity risk because compromise cannot always be prevented.

Q294. An organization is evaluating the risk of a new external service. Which factor most directly affects the likelihood component of risk?

1. Corporate logo design
   2. Number of office chairs
   3. Likelihood that relevant threats can successfully exploit existing weaknesses
   4. Screen resolution of administrator laptops

Correct Answer: 4. Likelihood that relevant threats can successfully exploit existing weaknesses

Explanation: Risk is commonly considered in terms of likelihood and impact. Likelihood reflects the probability that a relevant threat will exploit a vulnerability or otherwise cause the adverse event under consideration. Exposure, attacker capability, exploit maturity, frequency, and existing controls can all affect this estimate. Impact considers the resulting business consequences. Technical details unrelated to the threat scenario do not meaningfully change risk likelihood. Security architecture decisions should therefore be based on realistic threat scenarios and environmental context rather than vulnerability presence alone.

Q295. A security architect recommends an expensive segmentation project. Which information is most useful when presenting the business justification to executives?

1. Only the number of firewall rules
   2. Reduction in business risk and expected incident impact
   3. The engineer’s preferred vendor
   4. The number of configuration commands required

Correct Answer: 3. Reduction in business risk and expected incident impact

Explanation: Executives typically need to understand how a security investment affects business objectives and risk. A strong justification explains which attack paths the project reduces, which critical assets are protected, how expected loss or operational impact changes, and how the investment supports compliance or resilience. Technical implementation details remain important for engineering teams but do not by themselves establish business value. Vendor preference is not a risk-based justification. Security architects should translate technical controls into measurable outcomes such as reduced breach likelihood, smaller blast radius, faster recovery, or lower regulatory exposure.

Q296. Which control best enforces that a production change cannot be deployed unless required security tests have passed?

1. A CI/CD deployment gate tied to test results
   2. A verbal reminder to developers
   3. Disable automated testing
   4. Allow production deployments directly from laptops

Correct Answer: 2. A CI/CD deployment gate tied to test results

Explanation: A deployment gate automatically evaluates whether defined prerequisites have been met before a release can progress to production. Security tests can include SAST, DAST, SCA, secret detection, container scanning, policy-as-code validation, and artifact-signature checks. If required checks fail, the pipeline prevents deployment unless an authorized exception process is used. This creates repeatable and auditable enforcement rather than depending on developers to remember manual steps. Direct deployment from personal laptops weakens control and traceability. Automated gates are therefore a core DevSecOps mechanism for integrating security into software delivery.

Q297. An automation platform needs to make a destructive change to a production firewall. Which design provides the strongest safeguard?

1. Require approval or additional validation before destructive production actions
   2. Give the automation unrestricted permissions and no logging
   3. Automatically delete all policies after any alert
   4. Use one anonymous API account

Correct Answer: 4. Require approval or additional validation before destructive production actions

Explanation: High-impact automated actions should have safeguards proportional to their potential business impact. An approval step, multi-signal validation, maintenance-window requirement, or other control can reduce the chance that a false detection or workflow error causes an outage. Automation identities should remain narrowly scoped and all actions should be logged. Fully unrestricted permissions amplify the effect of compromised automation or programming mistakes. Anonymous accounts also remove accountability. Human-in-the-loop or deterministic approval mechanisms are especially appropriate for actions such as deleting firewall policies, disabling critical accounts, or shutting down infrastructure.

Q298. A machine-learning security model is updated automatically every night. Which control most directly reduces model-poisoning risk?

1. Accept all training data automatically
   2. Validate the provenance and integrity of data before retraining
   3. Allow anonymous writes to the training dataset
   4. Disable model testing after retraining

Correct Answer: 3. Validate the provenance and integrity of data before retraining

Explanation: Model poisoning targets the learning process by introducing malicious or misleading training data. Automatic retraining can increase risk if attackers can influence the data pipeline. Data provenance, access controls, integrity verification, anomaly detection, and quality checks should therefore be applied before new training material is accepted. Updated models should also be tested before production promotion. Anonymous modification of the training dataset would make poisoning much easier. Automated retraining should be treated as a privileged software and data pipeline, with controls comparable to those protecting production CI/CD processes.

Q299. A generative AI security assistant is allowed to search internal documentation. What is the best way to reduce confidential information appearing in prompts or model context unnecessarily?

1. Apply data minimization and retrieve only information necessary for the request
   2. Send the entire corporate file repository to every prompt
   3. Disable document permissions
   4. Include passwords and private keys for additional context

Correct Answer: 1. Apply data minimization and retrieve only information necessary for the request

Explanation: Data minimization reduces privacy and confidentiality risk by limiting AI context to information required for the current task. Retrieval systems should enforce access permissions and select only relevant content rather than providing entire repositories. Sensitive values such as credentials, private keys, regulated records, or unrelated documents should be excluded or redacted where possible. Larger prompts do not automatically produce better answers and may increase leakage risk. AI architecture should therefore combine access control, retrieval filtering, classification, logging, and data minimization to reduce unnecessary exposure of sensitive organizational information.

Q300. An organization is testing post-quantum algorithms and notices significantly different key sizes and performance characteristics compared with existing algorithms. What should the architect do?

1. Assume existing capacity planning remains valid
   2. Ignore protocol size limits
   3. Disable testing and deploy immediately
   4. Evaluate performance, bandwidth, certificate, protocol, and hardware impacts before migration

Correct Answer: 2. Evaluate performance, bandwidth, certificate, protocol, and hardware impacts before migration

Explanation: Post-quantum algorithms can differ substantially from classical algorithms in public-key size, signature size, computation requirements, memory use, and protocol behavior. Architects should evaluate impacts on VPNs, TLS, certificates, network devices, constrained systems, APIs, load balancers, and third-party interoperability before broad adoption. Controlled laboratory and pilot testing can reveal capacity or compatibility issues early. Assuming that existing sizing remains valid could lead to unexpected performance or protocol failures. A successful migration therefore requires both cryptographic security assessment and practical engineering validation.