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Question 241.

Which security concept requires an organization to verify access requests continuously rather than trusting a user simply because they are connected to the internal network?

1. Zero trust
   2. Open access
   3. Shared administration
   4. Flat networking

Correct Answer: 1

Explanation:

Zero trust assumes that network location alone is not sufficient to establish trust. Access decisions should consider factors such as user identity, device condition, requested resource, authentication strength, and security policy. Open access and flat networking provide unnecessarily broad connectivity, while shared administration can weaken accountability. Zero trust supports least privilege and continuous verification, which are particularly useful in environments containing remote users, cloud applications, mobile devices, contractors, and distributed workloads.

Question 242.

Which Palo Alto Networks firewall capability allows security policy to distinguish between applications that use the same TCP port?

1. Static routing
   2. DHCP relay
   3. VLAN tagging
   4. Application identification

Correct Answer: 4

Explanation:

Application identification helps a firewall recognize the actual application associated with traffic rather than relying only on ports and protocols. This is important because several applications may use TCP port 443, and some applications dynamically select ports. Static routing determines packet-forwarding paths, DHCP relay forwards DHCP messages between networks, and VLAN tagging identifies Layer 2 network membership. Application-aware policy gives administrators more precise control over network activity and can reduce the weaknesses of simple port-based rules.

Question 243.

Which threat occurs when an attacker secretly intercepts communications between two parties and may alter information passing between them?

1. Data deduplication
   2. Load balancing
   3. Man-in-the-middle attack
   4. Backup rotation

Correct Answer: 3

Explanation:

A man-in-the-middle attack occurs when an attacker positions themselves between communicating parties and intercepts, observes, or potentially modifies the exchanged information. Encryption, certificate validation, secure protocols, and proper authentication can reduce this risk. Data deduplication reduces duplicate stored information, load balancing distributes traffic, and backup rotation manages backup copies. Secure communications are important because users may otherwise unknowingly transmit credentials or sensitive data through infrastructure controlled by an attacker.

Question 244.

Which statement best describes the purpose of a security policy rule between two firewall zones?

1. It creates new IP addresses automatically.
   2. It defines which traffic is permitted or denied between the zones.
   3. It replaces endpoint protection.
   4. It synchronizes system clocks.

Correct Answer: 2

Explanation:

A firewall security policy rule controls how traffic is handled as it moves between security zones. Rules can evaluate source and destination zones, users, applications, addresses, services, and other criteria. They may allow, deny, inspect, or log matching traffic. Endpoint security remains necessary for host-level protection, and time synchronization is generally handled through protocols such as NTP. Zone-based rules help enforce segmentation and should permit only the communication required for legitimate business purposes.

Question 245.

Which action best protects an administrator session from unauthorized access when the administrator temporarily leaves the workstation?

1. Lock the workstation.
   2. Disable authentication.
   3. Share the session with another employee.
   4. Leave the management console open.

Correct Answer: 1

Explanation:

Locking the workstation prevents another person from immediately using an unattended authenticated session. This is especially important for administrators because their sessions may provide access to sensitive systems and powerful configuration capabilities. Disabling authentication or leaving the session open creates substantial risk, while sharing privileged sessions reduces accountability. Automatic screen-lock timers and strong reauthentication requirements can further reduce the risk associated with unattended administrative devices.

Question 246.

Which protocol is commonly used for secure remote terminal access and encrypts the administrative session?

1. Telnet
   2. FTP
   3. TFTP
   4. SSH

Correct Answer: 4

Explanation:

SSH provides encrypted remote command-line access and is commonly used to administer servers, firewalls, routers, and other devices. Telnet provides similar terminal functionality but normally lacks strong encryption. FTP and TFTP are primarily associated with file transfer rather than secure remote administration. SSH should be combined with strong authentication, restricted management access, individual administrator accounts, and logging so that encrypted access is also appropriately controlled and auditable.

Question 247.

Which security capability is most useful for detecting a previously unknown malicious file by observing its behavior in an isolated environment?

1. Static routing
   2. DNS forwarding
   3. Malware sandboxing
   4. Link aggregation

Correct Answer: 3

Explanation:

Malware sandboxing runs or analyzes suspicious content in an isolated environment and observes behaviors such as process creation, file modification, registry changes, or network communication. This can help identify threats that do not yet have traditional signatures. Static routing controls network paths, DNS forwarding handles name-resolution requests, and link aggregation combines interfaces. Sandboxing is most effective as one part of layered protection that also includes endpoint security, file inspection, threat prevention, and monitoring.

Question 248.

Which statement best describes the purpose of multi-factor authentication?

1. It automatically encrypts all user files.
   2. It requires authentication evidence from more than one factor category.
   3. It replaces authorization controls.
   4. It assigns IP addresses to users.

Correct Answer: 2

Explanation:

Multi-factor authentication requires evidence from at least two different authentication categories, such as something a user knows and something the user has. This reduces the likelihood that a stolen password alone will provide access. MFA does not replace authorization, encrypt all files, or assign network addresses. It is especially useful for privileged accounts, remote access, cloud applications, and other services where credential theft could have serious consequences.

Question 249.

Which security objective focuses on ensuring that data remains accurate and has not been changed without authorization?

1. Integrity
   2. Availability
   3. Scalability
   4. Portability

Correct Answer: 1

Explanation:

Integrity protects information from unauthorized alteration and helps ensure that data remains accurate and trustworthy. Controls such as hashes, digital signatures, change management, access restrictions, and auditing can support integrity. Availability focuses on keeping services accessible, scalability concerns handling increased demand, and portability refers to moving software or information between environments. Integrity is especially important for security configurations, financial records, logs, software packages, and other data where unauthorized modification could have significant consequences.

Question 250.

Which event would most strongly indicate a possible denial-of-service condition?

1. A user changes a password successfully.
   2. A scheduled backup finishes normally.
   3. An approved administrator updates a firewall rule.
   4. A public service receives an extremely large volume of requests and becomes unavailable.

Correct Answer: 4

Explanation:

A denial-of-service condition may occur when a system receives enough traffic or requests to exhaust bandwidth, memory, processing capacity, connection tables, or another limited resource. The resulting service degradation can prevent legitimate users from connecting. Routine password changes, backups, and approved configuration changes are normal activities. Organizations can improve resilience through traffic filtering, rate controls, redundant architecture, capacity planning, upstream mitigation, and incident-response procedures designed for availability attacks.

Question 251.

Which firewall information would be most useful when determining which security rule handled a particular network session?

1. Building inventory
   2. Employee attendance record
   3. Traffic log rule information
   4. Desktop wallpaper setting

Correct Answer: 3

Explanation:

Traffic logs commonly contain information identifying the rule that matched a session, along with source and destination addresses, applications, users, zones, ports, and actions. This data is valuable when troubleshooting why traffic was allowed or denied and when investigating suspicious connections. Building records, attendance information, and desktop settings do not indicate firewall policy decisions. Accurate logs can significantly reduce the time required to understand how traffic was processed through a security device.

Question 252.

Which statement best describes network address translation?

1. It authenticates users before login.
   2. It changes source or destination IP address information as traffic passes through a network device.
   3. It scans endpoint processes for malware.
   4. It automatically applies software patches.

Correct Answer: 2

Explanation:

Network address translation modifies source or destination address information as packets move through a firewall or router. It is often used to translate private internal addresses to public addresses or to publish internal services using mapped addresses. NAT does not authenticate users, detect malicious endpoint processes, or patch software. NAT and security policy are separate concepts: a translation rule changes address information, while security policy determines whether the traffic should be allowed.

Question 253.

Which practice provides the strongest protection against excessive privileges accumulating when an employee changes job roles?

1. Periodic access reviews
   2. Shared passwords
   3. Anonymous login
   4. Permanent administrator rights

Correct Answer: 1

Explanation:

Periodic access reviews help identify permissions that are no longer necessary after users change responsibilities, departments, or employment status. Without reviews, employees may gradually accumulate access from previous roles, creating unnecessary risk. Shared passwords and permanent administrator rights weaken access control, while anonymous login removes accountability. Effective identity governance should include account provisioning, role changes, privilege reviews, approval workflows, and prompt removal of outdated access.

Question 254.

Which Palo Alto Networks security capability can help block access to websites categorized as phishing or malware?

1. Link aggregation
   2. Static routing
   3. DHCP relay
   4. URL filtering

Correct Answer: 4

Explanation:

URL filtering evaluates web destinations according to categories, reputation, and security policy. It can help block phishing sites, malware-hosting pages, risky content, or other prohibited destinations. Link aggregation combines interfaces, static routing determines packet paths, and DHCP relay forwards DHCP messages. URL filtering can be strengthened by combining it with DNS security, threat prevention, file analysis, user identification, and endpoint protection.

Question 255.

Which attack technique involves scanning systems to identify which network ports or services are reachable?

1. Data classification
   2. File hashing
   3. Port scanning
   4. Disk mirroring

Correct Answer: 3

Explanation:

Port scanning sends connection attempts or probes to identify which network ports and services are reachable on a system. Attackers may use this information during reconnaissance to identify potential targets. Security administrators also use scanning legitimately for inventory and vulnerability assessment. Data classification categorizes information, file hashing supports integrity verification, and disk mirroring provides storage redundancy. Firewalls, intrusion prevention, monitoring, and proper service hardening can reduce the exposure created by unnecessary open ports.

Question 256.

Which statement best describes the purpose of endpoint isolation during incident response?

1. It permanently deletes all user data.
   2. It restricts a compromised device’s network communication while investigation continues.
   3. It increases the device’s administrative privileges.
   4. It disables all security monitoring.

Correct Answer: 2

Explanation:

Endpoint isolation limits a compromised device’s ability to communicate with other systems or attacker infrastructure. This can reduce lateral movement, data exfiltration, and additional malware activity while analysts investigate the incident. Isolation should be performed according to incident-response procedures and with consideration for evidence preservation and business impact. It does not require deleting all user data or increasing privileges. Security monitoring should normally remain available so investigators can continue collecting useful information.

Question 257.

Which control is most useful for recovering from accidental deletion of critical business files?

1. Tested backups
   2. Open guest access
   3. Shared administrator passwords
   4. Disabled logging

Correct Answer: 1

Explanation:

Tested backups provide recoverable copies of important information when production files are accidentally deleted, corrupted, or encrypted. Organizations should protect backup systems, monitor successful completion, maintain appropriate retention, and regularly test restoration procedures. Open guest access and shared administrator passwords increase security risk, while disabled logging reduces visibility. Backups are an important availability and resilience control but should complement rather than replace prevention and monitoring.

Question 258.

Which authentication event is most suspicious and warrants investigation?

1. A single successful login from a user’s usual workstation.
   2. A routine multi-factor authentication event during business hours.
   3. A planned password reset.
   4. Numerous failed administrator logins followed by a successful login from an unusual source.

Correct Answer: 4

Explanation:

Repeated failed administrator logins followed by a successful authentication from an unusual source may indicate that an attacker eventually obtained or guessed valid credentials. Analysts should investigate the source address, device, authentication factors, subsequent activity, and related alerts. Routine logins and planned password resets are generally expected. Administrator accounts deserve particularly careful monitoring because successful compromise may allow broad access to systems and security configurations.

Question 259.

Which cloud-security practice most directly reduces the risk of accidentally exposing sensitive storage to the public internet?

1. Increasing virtual CPU capacity
   2. Adding more application servers
   3. Applying restrictive permissions and monitoring cloud configuration
   4. Increasing display resolution

Correct Answer: 3

Explanation:

Restrictive access permissions and configuration monitoring help ensure that cloud storage remains available only to authorized identities and services. Misconfigured public access is a common cloud-security risk. Increasing compute capacity or adding application servers does not correct inappropriate permissions, and display resolution is unrelated. Organizations should also use encryption, logging, data classification, identity controls, and periodic configuration reviews to reduce exposure of sensitive cloud data.

Question 260.

Which approach best represents defense in depth?

1. Relying on one firewall for all security requirements
   2. Combining identity security, segmentation, endpoint protection, application-aware controls, threat prevention, logging, backups, and incident response
   3. Giving every employee administrator access
   4. Disabling patches to avoid configuration changes

Correct Answer: 2

Explanation:

Defense in depth uses multiple complementary security controls so that failure of one layer does not leave the organization completely exposed. Identity protections reduce unauthorized access, segmentation limits movement, endpoint controls monitor hosts, application-aware firewalls control traffic, threat prevention blocks malicious activity, logging supports investigation, and backups improve recovery. Broad administrator access and unpatched systems increase risk. Layered controls create multiple opportunities to prevent, detect, contain, and recover from cyberattacks.