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

Q301. A security architect wants branch routers to establish encrypted tunnels dynamically with other branches instead of sending all spoke-to-spoke traffic through the headquarters hub. Which technology best meets the requirement?

1. Static GRE tunnels between every branch
   2. Plain MPLS without encryption
   3. DMVPN with IPsec protection
   4. Port address translation

Correct Answer: 3. DMVPN with IPsec protection

Explanation: DMVPN is designed for scalable multipoint VPN environments where many branch locations need secure connectivity without manually defining a full mesh of permanent tunnels. A hub can help spokes discover one another, after which supported spoke-to-spoke tunnels can be created dynamically. IPsec supplies confidentiality, integrity, authentication, and anti-replay protection for the traffic. A complete mesh of static GRE tunnels becomes difficult to manage as branch count increases, and GRE alone does not encrypt data. MPLS can provide private WAN connectivity but does not inherently satisfy the stated encrypted dynamic overlay requirement.

Q302. An enterprise wants network devices to send security event messages to a centralized collector while using a consistent timestamp format. Which architecture is most appropriate?

1. Centralized Syslog combined with reliable NTP synchronization
   2. Store all logs only in device memory
   3. Disable timestamps on event messages
   4. Use DHCP as the event-transport protocol

Correct Answer: 1. Centralized Syslog combined with reliable NTP synchronization

Explanation: Centralized Syslog allows routers, switches, firewalls, and other systems to forward event information to a protected logging platform where security teams can search and correlate activity. Reliable time synchronization is equally important because accurate timestamps allow events from multiple systems to be placed in the correct sequence during investigation. Local-only logs can disappear if a device fails or is compromised. Disabling timestamps severely reduces forensic usefulness. DHCP provides network configuration rather than event transport. The logging platform should also use appropriate access controls, retention, integrity protection, and monitoring to preserve evidentiary value.

Q303. A company needs to inspect outbound web traffic but cannot decrypt categories containing highly sensitive personal communications. Which security design best balances visibility and privacy?

1. Decrypt every TLS session regardless of destination
   2. Disable web inspection entirely
   3. Replace HTTPS with HTTP
   4. Apply selective TLS decryption with policy-based exemptions

Correct Answer: 4. Apply selective TLS decryption with policy-based exemptions

Explanation: Selective TLS decryption lets the organization inspect encrypted sessions where threat visibility is needed while excluding categories that should remain private because of legal, regulatory, or organizational requirements. Exemptions can be based on destination category, application, user, or other context. Decrypting everything may expose sensitive information unnecessarily, while decrypting nothing creates large inspection blind spots. Replacing HTTPS with HTTP would weaken transport security. The decryption infrastructure should also be protected carefully because it handles plaintext traffic and trusted certificates, making it a high-value security component.

Q304. An organization wants infrastructure administrators to use stronger authentication than passwords when managing routers and firewalls. Which approach provides the greatest improvement?

1. Increase password reuse periods
   2. Require phishing-resistant MFA for privileged administration
   3. Use one shared enable password
   4. Permit anonymous SSH from the management VLAN

Correct Answer: 2. Require phishing-resistant MFA for privileged administration

Explanation: Privileged infrastructure access is a high-value target, so stronger authentication should be used wherever supported. Phishing-resistant MFA reduces dependence on reusable passwords and can prevent many attacks involving stolen credentials or fake login pages. Combining MFA with centralized AAA, role-based command authorization, hardened administrative workstations, and restricted management networks provides stronger overall protection. Shared passwords weaken accountability and make credential rotation difficult. Anonymous access removes identity assurance entirely. MFA should therefore be part of a broader privileged-access architecture rather than treated as a standalone control.

Q305. A company wants a security platform that combines secure web access, cloud application control, zero-trust access, and other user-focused security services delivered from the cloud. Which architecture is most appropriate?

1. Layer 2 campus switching
   2. Traditional static routing only
   3. Unencrypted GRE
   4. Security Service Edge

Correct Answer: 4. Security Service Edge

Explanation: Security Service Edge, or SSE, brings together cloud-delivered security capabilities focused on user and application access. Typical functions can include secure web gateway, zero-trust network access, cloud application security, data protection, and related controls. SSE can provide consistent policy for users working from offices, homes, branches, or mobile networks without forcing every session through a central data center. Traditional switching and routing technologies provide connectivity rather than comprehensive cloud-delivered security enforcement. SSE is closely related to SASE, with SASE combining the security capabilities of SSE with WAN networking functions.

Q306. A security architect needs to ensure that only organization-managed devices can access an internal administrative portal, even when users provide valid credentials. Which control best satisfies the requirement?

1. Trust any device after password authentication
   2. Enforce device posture or managed-device compliance as an access condition
   3. Permit access based solely on Internet source address
   4. Use one shared account for all administrators

Correct Answer: 2. Enforce device posture or managed-device compliance as an access condition

Explanation: Device-aware access checks whether the endpoint satisfies defined trust requirements before granting access. Signals might include device management enrollment, endpoint protection status, disk encryption, certificate identity, operating-system version, or compliance state. This prevents valid credentials alone from granting sensitive access from an unknown or compromised endpoint. Source IP address is a weak proxy for device trust, especially for remote users. Shared administrator accounts reduce attribution and increase credential risk. Combining user identity with device posture is a core zero-trust design pattern for protecting high-value applications.

Q307. A cloud application uses several microservices. The security team wants to stop one service from reading another service’s secrets from a shared configuration store. Which design is most appropriate?

1. Give each workload a unique identity and authorize secrets individually
   2. Give all services the same master secret
   3. Store every credential in a public environment variable file
   4. Disable authentication to the configuration store

Correct Answer: 1. Give each workload a unique identity and authorize secrets individually

Explanation: Each workload should have a distinct identity and receive access only to the secrets required for its function. A secrets-management platform can evaluate workload identity and return only specifically authorized values. If one service is compromised, the attacker should not automatically gain access to credentials belonging to unrelated components. Shared master secrets create a broad blast radius, while unauthenticated or publicly stored secrets provide almost no meaningful protection. Unique workload identity, least-privilege secret authorization, rotation, and auditing form a stronger architecture for microservices and cloud-native applications.

Q308. A company wants to reduce risk from vulnerable container base images before developers use them in new applications. Which control should be implemented?

1. Allow developers to download any image directly from the Internet
   2. Disable vulnerability scanning
   3. Maintain an approved, scanned internal base-image catalog
   4. Run all containers in privileged mode

Correct Answer: 3. Maintain an approved, scanned internal base-image catalog

Explanation: An approved base-image catalog allows security and platform teams to provide developers with standardized images that are patched, scanned, configured according to organizational policy, and obtained from trusted sources. This reduces the likelihood that every development team independently downloads outdated or malicious images. Images should be continuously rescanned because new vulnerabilities appear over time. Privileged runtime operation does not fix vulnerable image content and increases impact if compromise occurs. A controlled internal catalog therefore improves consistency, provenance, patch management, and supply-chain security across containerized applications.

Q309. An application requires that session identifiers cannot be predicted by attackers. Which design characteristic is most important?

1. Use sequential session numbers
   2. Generate session identifiers using cryptographically secure randomness
   3. Base session IDs only on usernames
   4. Use the current minute as the session token

Correct Answer: 2. Generate session identifiers using cryptographically secure randomness

Explanation: Session identifiers function as bearer credentials in many web applications, so attackers must not be able to predict valid values. Cryptographically secure random generation provides sufficient entropy to make guessing impractical. Sequential numbers, usernames, timestamps, or other predictable values can enable session hijacking if an attacker can infer another user’s token. Sessions should also use secure cookie attributes, appropriate expiration, rotation after privilege changes, and server-side invalidation on logout. Strong randomness is therefore one essential component of secure session-management architecture.

Q310. A public API is receiving automated password-guessing attempts against customer accounts. Which combination most directly reduces this attack?

1. Disable authentication
   2. Make passwords shorter
   3. Permit unlimited login attempts
   4. Apply rate limiting, risk-based detection, and MFA

Correct Answer: 4. Apply rate limiting, risk-based detection, and MFA

Explanation: Automated credential attacks should be addressed using layered controls. Rate limiting slows repeated attempts, behavioral and risk-based detection can identify suspicious patterns, and MFA reduces the usefulness of a guessed or reused password. Additional measures can include breached-password screening, bot protection, device intelligence, and progressive challenges. Lockouts should be designed carefully because attackers can abuse rigid lockout policies to deny service to legitimate users. Removing authentication or allowing unlimited retries obviously increases risk. Layered protections make large-scale credential guessing more expensive and less likely to succeed.

Q311. A SOC wants to detect possible data exfiltration by identifying DNS queries containing unusually long, encoded subdomains. Which threat technique is being investigated?

1. ARP spoofing
   2. VLAN hopping
   3. DNS tunneling
   4. BGP route reflection

Correct Answer: 3. DNS tunneling

Explanation: DNS tunneling encodes data or command-and-control messages inside DNS queries and responses. Attackers may use long or unusual subdomain labels to move information through networks where DNS traffic is broadly permitted. Detection can use query length, entropy, domain reputation, request frequency, record types, and behavioral baselines. Protective DNS services and restricted resolver use can also reduce the attack surface. ARP spoofing and VLAN hopping are Layer 2 attacks, while BGP route reflection is a routing design function. DNS analytics can therefore play an important role in detecting covert channels.

Q312. An organization wants to preserve security logs for investigations while making it difficult for a compromised administrator to modify historical records. Which design is strongest?

1. Send logs to centralized append-only or immutable storage with restricted access
   2. Keep logs only on the monitored server
   3. Allow every administrator to delete centralized records
   4. Disable log forwarding

Correct Answer: 1. Send logs to centralized append-only or immutable storage with restricted access

Explanation: Centralized immutable or append-only storage makes it harder for an attacker or compromised administrator to erase or alter evidence after an incident. Systems should forward logs promptly to infrastructure that uses separate administrative controls, retention policy, reliable time synchronization, and integrity mechanisms. Local logs alone can disappear when the source system is compromised or rebuilt. Broad delete access also weakens evidentiary value. A strong logging architecture separates log generation from protected log retention and ensures investigators can reconstruct events even when production systems have been tampered with.

Q313. A company wants to prioritize remediation based on whether vulnerabilities are known to be actively exploited in the wild. Which input should be added to the prioritization process?

1. Exploitation intelligence in addition to severity and asset context
   2. Office floor plan
   3. Employee monitor sizes
   4. Printer model numbers

Correct Answer: 1. Exploitation intelligence in addition to severity and asset context

Explanation: Vulnerability severity scores are useful but do not indicate whether attackers are currently exploiting a vulnerability. Active exploitation information can significantly change remediation urgency, especially for exposed or high-value assets. A risk-based process can combine severity, exploitability, asset criticality, network exposure, compensating controls, and business impact. This allows limited remediation resources to focus on vulnerabilities that create the greatest realistic risk. Irrelevant operational details such as monitor or printer models do not inform exploit likelihood. Threat-informed vulnerability management therefore improves prioritization beyond severity scores alone.

Q314. An organization plans to introduce a new Internet-facing service. What should the security architect perform before finalizing controls to identify likely attackers, entry points, and attack paths?

1. Disable logging
   2. Threat modeling
   3. Increase subnet size
   4. Remove authentication

Correct Answer: 3. Threat modeling

Explanation: Threat modeling systematically identifies valuable assets, trust boundaries, attack surfaces, likely adversaries, abuse cases, and potential attack paths before deployment. The findings can then be translated into architectural controls and security requirements. Performing the activity early is less expensive than discovering design flaws after production release. Different methods can be used depending on the environment, including STRIDE, attack trees, and data-flow-based approaches. Subnet sizing is only one technical consideration and does not replace threat analysis. Removing logging or authentication would weaken the system rather than help identify threats.

Q315. A business requires a service to maintain 99.99% availability. Which design decision most directly supports the requirement?

1. Use one application instance and one database server
   2. Disable monitoring to reduce overhead
   3. Store all backups on the production host
   4. Remove single points of failure through redundancy and automated failover

Correct Answer: 2. Remove single points of failure through redundancy and automated failover

Explanation: High availability requires identifying components whose failure would interrupt the service and designing redundancy or failover around them. This can include multiple application instances, redundant network paths, clustered databases, load balancers, geographic diversity, and health checks. The actual architecture should be driven by the required availability target and failure scenarios. A single application or database host remains a clear failure point. Monitoring is essential to detect degraded components, while backups alone do not provide immediate service continuity. Availability requirements must therefore translate into resilient infrastructure and tested failover behavior.

Q316. A security architecture review identifies a control that is too expensive to implement immediately. Management approves a temporary alternative that reduces exposure until the preferred solution is funded. What is the temporary alternative called?

1. Compensating control
   2. Risk elimination
   3. Threat actor
   4. Vulnerability disclosure

Correct Answer: 4. Compensating control

Explanation: A compensating control provides an alternative way to reduce risk when the preferred or required control cannot be implemented immediately. For example, strong segmentation, enhanced monitoring, or an IPS signature might temporarily reduce exposure while a legacy application awaits replacement. A compensating control should provide meaningful risk reduction, be documented, have an owner, and ideally have an expiration or review date. It does not necessarily satisfy every compliance requirement automatically; that depends on the applicable framework and approval process. Compensating controls are an important tool for managing real-world architecture constraints.

Q317. A CI/CD pipeline downloads dependencies from external registries. Which control most directly protects against a dependency-confusion attack?

1. Disable repository authentication
   2. Use controlled internal repositories and explicitly trusted package sources
   3. Always install the highest version number from the Internet
   4. Allow developers to use arbitrary repositories

Correct Answer: 3. Use controlled internal repositories and explicitly trusted package sources

Explanation: Dependency confusion can occur when a build system retrieves an attacker-controlled package from a public repository instead of the intended internal package. Controlled repositories, scoped package naming, explicit source configuration, version pinning, and package integrity checks reduce this risk. Organizations should understand which repositories each build tool queries and avoid ambiguous source precedence. Automatically selecting arbitrary higher-version public packages can create exactly the condition attackers exploit. Repository security is therefore a critical part of software supply-chain protection and should be managed centrally rather than left entirely to individual developer configurations.

Q318. An automation system retrieves data from a security API that returns results across many pages. What should the workflow implement to ensure it processes the complete dataset?

1. Read only the first page
   2. Proper API pagination handling
   3. Disable authentication
   4. Repeat the same first request indefinitely

Correct Answer: 2. Proper API pagination handling

Explanation: Many APIs limit the number of objects returned in one response and provide page numbers, continuation tokens, cursors, or links for retrieving subsequent results. Automation that reads only the first page can silently miss security objects, alerts, indicators, or configuration entries, leading to incomplete decisions. The workflow should correctly follow the API’s documented pagination method, handle rate limits and errors, and avoid duplicate processing. Authentication and authorization should remain enabled. Reliable security automation requires attention to API behavior beyond simply sending a successful initial request.

Q319. A machine-learning system flags a login as malicious primarily because it comes from a new country. Which control helps analysts understand how the model reached that conclusion?

1. Explainability or feature-attribution information
   2. Larger Ethernet frames
   3. GRE tunnel statistics
   4. DHCP lease duration

Correct Answer: 4. Explainability or feature-attribution information

Explanation: Explainability mechanisms can show which input features contributed most strongly to a machine-learning prediction. In a security workflow, this can help an analyst determine whether a risk score was influenced by geography, new devices, unusual login times, impossible travel, or other signals. Explainability does not guarantee that a model is correct, but it improves human review, tuning, and governance. It can also reveal when the model relies too heavily on an inappropriate feature. Networking settings such as MTU, GRE statistics, or DHCP leases do not explain the reasoning behind an AI-based risk classification.

Q320. A security team wants to prevent a generative AI assistant from making repeated high-impact API calls if it enters an unexpected tool-use loop. Which safeguard is most appropriate?

1. Give it unlimited tool executions
   2. Disable API authentication
   3. Use execution limits, rate controls, and scoped tool permissions
   4. Give the AI permanent global administrator rights

Correct Answer: 1. Use execution limits, rate controls, and scoped tool permissions

Explanation: AI agents that can call tools need operational boundaries in addition to prompt instructions. Execution-count limits, rate limits, timeouts, budgets, idempotent operations, scoped service identities, and approval requirements can prevent an unexpected reasoning loop from repeatedly performing disruptive actions. Tool calls should also be logged and monitored. Unlimited execution with broad permissions can turn a minor model error into a major operational incident. Technical controls should therefore bound both what the AI is authorized to do and how frequently it can perform those actions.