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Question 261.

Which security principle recommends granting access only when it is necessary for an authorized task?

1. Least privilege
   2. Open trust
   3. Shared access
   4. Anonymous administration

Correct Answer: 1

Explanation:

Least privilege limits users, applications, and systems to only the permissions required for legitimate work. This reduces the potential impact of compromised accounts, mistakes, or insider misuse. Open trust and shared access provide broader permissions than necessary, while anonymous administration removes accountability. Organizations can enforce least privilege through role-based permissions, periodic access reviews, separate privileged accounts, and temporary privilege elevation. Access should also be removed promptly when it is no longer required.

Question 262.

Which Palo Alto Networks capability helps identify a user associated with network traffic?

1. Static routing
   2. Link aggregation
   3. DHCP relay
   4. User identification

Correct Answer: 4

Explanation:

User identification associates network traffic with authenticated users or groups. This allows security policy to consider identity rather than relying only on IP addresses, which may change or be shared. Static routing determines network paths, link aggregation combines interfaces, and DHCP relay forwards DHCP messages between networks. Identity-aware policy helps organizations control access more precisely and gives security analysts greater context when investigating suspicious network activity.

Question 263.

Which attack attempts to trick a user into revealing sensitive information through a fraudulent email?

1. Load balancing
   2. Data replication
   3. Phishing
   4. File compression

Correct Answer: 3

Explanation:

Phishing uses deceptive messages to convince users to reveal credentials, open malicious attachments, visit fake websites, or perform other unsafe actions. Load balancing distributes traffic, data replication creates copies of information, and file compression reduces file size. Organizations can reduce phishing risk through security awareness, email filtering, URL controls, multi-factor authentication, and clear reporting procedures. Users should be cautious of urgent requests, suspicious links, unexpected attachments, and requests for credentials.

Question 264.

Which statement best describes the purpose of a firewall security policy?

1. It replaces all endpoint security software.
   2. It determines how matching traffic should be handled.
   3. It automatically updates operating systems.
   4. It physically connects network devices.

Correct Answer: 2

Explanation:

A firewall security policy defines whether matching traffic should be allowed, denied, inspected, logged, or otherwise controlled. Rules may consider source and destination zones, users, applications, addresses, and services. Security policy does not replace endpoint protection or software updates and does not perform physical cabling. Well-designed policies should follow least privilege, allow only required business communication, and include appropriate security inspection and logging.

Question 265.

Which practice most directly reduces exposure from unnecessary network services running on a server?

1. Disable services that are not required.
   2. Add more user accounts.
   3. Share administrator passwords.
   4. Turn off all logging.

Correct Answer: 1

Explanation:

Disabling unnecessary services reduces the server’s attack surface because fewer listening applications and network ports are available for attackers to target. This is an important part of system hardening. Creating more accounts, sharing administrator credentials, or disabling logging would increase risk rather than reduce it. Hardening should also include secure configuration, patching, least privilege, endpoint protection, and regular vulnerability assessment.

Question 266.

Which protocol is commonly used for encrypted web communication?

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

Correct Answer: 4

Explanation:

HTTPS protects web communication using TLS and commonly operates over TCP port 443. It helps preserve confidentiality and integrity between a browser and web server. Telnet provides remote terminal access without comparable encryption, while TFTP and FTP are primarily file-transfer protocols. HTTPS is commonly used for websites, portals, cloud applications, and administrative interfaces that may transmit credentials or other sensitive information.

Question 267.

Which security capability can detect suspicious activity directly on a laptop or server?

1. Static route
   2. DNS resolver
   3. Endpoint detection and response
   4. VLAN trunk

Correct Answer: 3

Explanation:

Endpoint detection and response monitors host activity such as processes, files, network connections, and behavioral events. It can help identify malware, credential abuse, suspicious scripts, and other malicious activity. Static routing, DNS resolution, and VLAN trunking are networking functions rather than endpoint-security capabilities. EDR can also support investigation and response actions, including device isolation, depending on the platform and configuration.

Question 268.

Which statement best describes authentication?

1. It determines what an authenticated user may access.
   2. It verifies the identity of a user or device.
   3. It creates backup copies of files.
   4. It assigns IP addresses automatically.

Correct Answer: 2

Explanation:

Authentication verifies that a user or device is who or what it claims to be. Passwords, certificates, tokens, biometrics, and multi-factor methods may be used. Authorization is different because it determines what an authenticated identity is permitted to access or do. Backups protect data, while DHCP commonly provides IP configuration. Strong authentication is especially important for administrators, remote access, and cloud applications.

Question 269.

Which security objective is most directly affected when an attacker changes financial records without permission?

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

Correct Answer: 1

Explanation:

Integrity ensures that data remains accurate, complete, and protected from unauthorized modification. If an attacker changes financial records, the integrity of the information has been compromised. Availability concerns access to systems, scalability concerns growth, and redundancy provides resilience. Access controls, digital signatures, hashes, auditing, and change management can all help protect or verify data integrity.

Question 270.

Which type of attack attempts to make a network service unavailable by overwhelming it with traffic or requests?

1. Password hashing
   2. File encryption
   3. Data classification
   4. Denial-of-service attack

Correct Answer: 4

Explanation:

A denial-of-service attack attempts to exhaust bandwidth, processing capacity, connection resources, or other system resources so legitimate users cannot access a service. Distributed denial-of-service attacks use many sources to generate attack traffic. Password hashing, encryption, and data classification are legitimate security functions. Organizations can improve resilience through filtering, traffic analysis, capacity planning, rate controls, redundant services, and upstream mitigation.

Question 271.

Which firewall log is most useful when investigating whether a specific connection was allowed or denied?

1. Hardware inventory
   2. Configuration backup
   3. Traffic log
   4. Employee directory

Correct Answer: 3

Explanation:

Traffic logs contain information about sessions processed by the firewall. They commonly include source and destination addresses, applications, users, zones, actions, ports, and the matching security rule. This makes them useful for determining why traffic was allowed or denied. Hardware inventories and employee directories do not describe firewall sessions, while configuration backups store settings rather than individual connection events.

Question 272.

Which statement best describes the purpose of network segmentation?

1. It allows all systems to communicate without restriction.
   2. It separates systems and controls communication between network areas.
   3. It removes the need for passwords.
   4. It automatically encrypts every file.

Correct Answer: 2

Explanation:

Network segmentation separates systems into logical or physical areas and controls communication between them. This helps limit unnecessary access and lateral movement. Guest networks, server networks, management systems, and user devices may be separated into different segments or security zones. Segmentation does not replace authentication or encryption and does not guarantee that attacks cannot occur. It is one component of a layered security strategy.

Question 273.

Which action best protects privileged administrative access?

1. Require strong authentication and restrict management access to authorized sources.
   2. Allow access from anywhere on the internet.
   3. Share one administrator account among all users.
   4. Disable administrative logging.

Correct Answer: 1

Explanation:

Privileged management interfaces should be reachable only from authorized systems or networks, and administrator accounts should use strong authentication. This reduces both exposure and the likelihood that stolen credentials alone will provide access. Shared accounts weaken accountability, unrestricted internet exposure increases attack opportunities, and disabling logs removes important visibility. Multi-factor authentication and individual administrator accounts provide additional protection.

Question 274.

Which Palo Alto Networks feature can help block access to known phishing and malicious websites?

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

Correct Answer: 4

Explanation:

URL filtering allows web access to be controlled according to destination category, reputation, or organizational policy. It can help block phishing pages, malware-hosting sites, and other risky web destinations. Static routing controls traffic paths, link aggregation combines interfaces, and DHCP relay forwards DHCP messages. URL filtering can be combined with DNS security, threat prevention, file inspection, and user identification for stronger web protection.

Question 275.

Which type of malicious activity uses many compromised devices to generate attack traffic against a target?

1. Data deduplication
   2. Password rotation
   3. Distributed denial-of-service attack
   4. Configuration backup

Correct Answer: 3

Explanation:

A distributed denial-of-service attack uses many systems, often compromised devices in a botnet, to send traffic or requests toward a target. The combined volume can overwhelm network links or service resources. Data deduplication, password rotation, and configuration backups are legitimate operational activities. DDoS resilience can involve upstream filtering, content-delivery services, redundant architectures, traffic scrubbing, monitoring, and incident-response planning.

Question 276.

Which statement best describes multi-factor authentication?

1. It requires two copies of the same password.
   2. It requires authentication evidence from more than one factor category.
   3. It removes the need for identity verification.
   4. It automatically grants administrator access.

Correct Answer: 2

Explanation:

Multi-factor authentication uses evidence from different categories, such as something a user knows and something the user has. A password plus a hardware token is one example. Two passwords would still represent only one factor category. MFA does not eliminate authentication or automatically provide administrative privileges. It is valuable because an attacker who steals a password may still be unable to authenticate without the additional factor.

Question 277.

Which control is most important for recovering important files after accidental deletion or ransomware encryption?

1. Protected and tested backups
   2. Shared passwords
   3. Anonymous access
   4. Disabled endpoint protection

Correct Answer: 1

Explanation:

Protected and tested backups provide recoverable copies of important data when production files are deleted, corrupted, or encrypted. Backups should be protected from the same credentials or attack paths that could affect production systems. Organizations should also test restoration regularly to confirm that backups are usable. Shared passwords, anonymous access, and disabled endpoint protection increase risk and provide no reliable recovery capability.

Question 278.

Which event would most strongly suggest that an account may have been compromised?

1. A normal login from the user’s usual workstation
   2. A scheduled backup
   3. An approved software installation
   4. A successful administrator login from an unusual location after many failed attempts

Correct Answer: 4

Explanation:

A successful privileged login from an unusual location following repeated failures may indicate that an attacker obtained or guessed valid credentials. Analysts should review the source, device, authentication factors, subsequent activity, and related alerts. Routine backups, approved installations, and normal logins are expected events. Privileged accounts deserve especially careful monitoring because successful compromise can lead to broad administrative access.

Question 279.

Which cloud-security concept explains that both the provider and customer have security responsibilities?

1. Open trust model
   2. Anonymous access model
   3. Shared responsibility model
   4. Flat authorization model

Correct Answer: 3

Explanation:

The shared responsibility model divides security obligations between the cloud provider and the customer. The exact division depends on the service model. The provider may secure physical infrastructure and foundational services, while the customer may still be responsible for identities, data, applications, operating systems, or configuration. Understanding this division helps prevent security gaps caused by incorrectly assuming that the provider manages every control.

Question 280.

Which approach provides the strongest overall protection for a modern enterprise?

1. Trust all internal users and devices automatically.
   2. Combine identity security, segmentation, application-aware policy, endpoint protection, threat prevention, monitoring, and recovery.
   3. Depend entirely on a single firewall.
   4. Disable security updates to avoid changes.

Correct Answer: 2

Explanation:

Modern security requires multiple complementary controls. Identity protections reduce unauthorized access, segmentation limits lateral movement, application-aware firewalls improve network control, endpoint security monitors host behavior, and threat prevention blocks malicious activity. Logging and monitoring support detection and investigation, while backups and recovery capabilities improve resilience. Automatically trusting internal systems, relying on one device, or disabling security updates creates unnecessary risk. Defense in depth provides multiple opportunities to prevent, detect, contain, and recover from attacks.