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Question 21.

Which protocol is commonly used to securely browse websites?

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

Correct Answer: 1

Explanation:

HTTPS is HTTP protected with TLS encryption. It helps protect web traffic from unauthorized reading or modification while data travels between a client and server. FTP is primarily used for file transfers and does not provide the same default protection. Telnet provides remote terminal access but sends information without strong encryption. TFTP is a lightweight file-transfer protocol with limited security capabilities. Secure web browsing is important because users frequently transmit credentials, personal information, application data, and other sensitive content through web applications. HTTPS supports confidentiality and integrity for these communications when implemented and validated correctly.

Question 22.

Which network device primarily forwards Ethernet frames based on MAC addresses?

1. Router
   2. Firewall
   3. DNS server
   4. Layer 2 switch

Correct Answer: 4

Explanation:

A Layer 2 switch forwards Ethernet frames within a local network by learning and using MAC addresses. Routers primarily make forwarding decisions using IP addresses between networks. Firewalls enforce security policy on traffic and may perform many additional inspection functions. A DNS server resolves names into information such as IP addresses. Understanding switching is important because local network communication, VLAN design, segmentation, and traffic paths depend heavily on Layer 2 behavior. Security professionals need to understand how traffic moves through switches so they can determine where inspection, monitoring, and access controls should be applied.

Question 23.

What is the primary purpose of network segmentation?

1. To make every system publicly accessible
   2. To eliminate the need for firewalls
   3. To separate systems and control communication between different parts of a network
   4. To ensure all devices share the same broadcast domain

Correct Answer: 3

Explanation:

Network segmentation divides an environment into separate logical or physical areas and controls communication between them. Segmentation can reduce unnecessary access, improve security policy enforcement, and limit an attacker’s ability to move laterally after compromising one system. Making every system publicly accessible would increase risk. Segmentation does not eliminate the need for firewalls or other security controls. It also typically reduces the size of broadcast domains rather than forcing all devices into one. Common segmentation examples include separating users, servers, management systems, guest devices, development environments, and public-facing services according to trust level and business requirements.

Question 24.

Which technology automatically provides hosts with settings such as an IP address, subnet mask, and default gateway?

1. DNS
   2. DHCP
   3. HTTPS
   4. SNMP

Correct Answer: 2

Explanation:

DHCP can automatically provide hosts with IP configuration information, including an IP address, subnet mask, default gateway, and DNS server information. This reduces the administrative effort of manually configuring every endpoint. DNS resolves names to addresses and other records. HTTPS is used for secure web communication. SNMP is commonly used for network monitoring and management. Understanding DHCP is important in security because unauthorized DHCP services, incorrect configurations, and address assignment problems can disrupt network connectivity or enable certain attacks. Security teams may monitor DHCP information to help associate IP addresses with devices during investigations.

Question 25.

Which security practice helps reduce the attack surface by disabling unnecessary services and features?

1. System hardening
   2. Data replication
   3. Load balancing
   4. Packet fragmentation

Correct Answer: 1

Explanation:

System hardening reduces unnecessary exposure by disabling unused services, removing unneeded software, changing insecure defaults, applying secure configurations, and limiting permissions. The goal is to reduce the number of potential paths an attacker could exploit. Data replication creates copies of data for availability or recovery. Load balancing distributes workload among multiple systems. Packet fragmentation divides packets into smaller pieces and is not a general hardening technique. Effective hardening usually works together with patching, access control, endpoint protection, vulnerability management, and continuous monitoring. Standardized secure configuration baselines can help organizations maintain consistent hardening across large numbers of systems.

Question 26.

Which security technology is designed to detect and potentially block malicious network activity based on known signatures or behavior?

1. Patch panel
   2. DHCP relay
   3. File server
   4. Intrusion prevention system

Correct Answer: 4

Explanation:

An intrusion prevention system analyzes traffic for malicious patterns, suspicious behavior, or known attack techniques and can take action to block or prevent detected threats. Depending on the implementation, prevention capabilities may be integrated into a next-generation firewall or another network security platform. A patch panel is a physical cabling component. A DHCP relay forwards DHCP messages between different network segments. A file server stores and provides access to files. Intrusion prevention helps protect against exploits and other network attacks, but it should be combined with patching, endpoint security, secure configuration, segmentation, and other controls as part of a layered security strategy.

Question 27.

Which term describes the process of verifying that a user is who they claim to be?

1. Authorization
   2. Accounting
   3. Authentication
   4. Segmentation

Correct Answer: 3

Explanation:

Authentication verifies identity. It may use passwords, security tokens, certificates, biometrics, or multiple factors. Authorization is different because it determines what an authenticated identity is allowed to access or do. Accounting records activity for auditing, monitoring, or reporting purposes. Segmentation divides networks or systems into separate areas. Understanding the difference between authentication and authorization is fundamental to identity security. A user may successfully authenticate but still be denied access to a sensitive resource because their authorization level does not permit it. Strong authentication combined with least-privilege authorization helps reduce the risk of unauthorized access.

Question 28.

Which statement best describes authorization?

1. Confirming that data has been backed up
   2. Determining which resources or actions an authenticated user is permitted to access
   3. Translating names into IP addresses
   4. Encrypting every packet on a network

Correct Answer: 2

Explanation:

Authorization determines what an authenticated user or system is allowed to access and what actions it may perform. For example, one employee may be authorized to read a database while another may be allowed to modify it. Authentication happens first by verifying identity. Authorization then applies permissions according to role, policy, context, or other criteria. DNS resolves names to network information, while encryption protects confidentiality. Effective authorization follows least-privilege principles so users receive only the permissions required for their responsibilities. Poorly designed authorization can allow excessive access even when authentication itself is strong.

Question 29.

Which security objective ensures that authorized users can access systems and information when needed?

1. Availability
   2. Obfuscation
   3. Portability
   4. Nonrepudiation

Correct Answer: 1

Explanation:

Availability means ensuring that authorized users can access systems, services, and information when required. Organizations support availability through redundancy, backups, resilient architectures, monitoring, capacity planning, failover, disaster recovery, and protection against denial-of-service attacks. Obfuscation makes information or code more difficult to interpret but is not one of the main CIA security objectives. Portability relates to moving software or data between environments. Nonrepudiation helps provide evidence that an action or transaction occurred and cannot easily be denied. Availability is especially important for critical services where downtime can cause significant business, safety, or operational impact.

Question 30.

Which concept involves using several different security controls so that the failure of one control does not leave the environment completely unprotected?

1. Single sign-on
   2. Flat networking
   3. Open access
   4. Defense in depth

Correct Answer: 4

Explanation:

Defense in depth uses multiple complementary security controls across different layers. For example, an organization may combine identity controls, firewalls, endpoint protection, segmentation, encryption, logging, backups, and security awareness. If one control fails or is bypassed, other controls may still detect, contain, or limit the attack. Single sign-on simplifies access to multiple applications but is not itself a layered defense strategy. Flat networking reduces segmentation and may increase lateral movement risk. Open access weakens security by allowing overly broad permissions. Defense in depth recognizes that no single technology or control can reliably stop every threat.

Question 31.

Which type of malware is designed to secretly monitor user activity or collect information?

1. Worm
   2. Ransomware
   3. Spyware
   4. Bootloader

Correct Answer: 3

Explanation:

Spyware is malicious software designed to monitor activity, collect information, or steal data without the user’s informed authorization. It may capture browsing activity, credentials, personal information, or other sensitive content. A worm is malware that can self-propagate across systems or networks. Ransomware commonly encrypts data or disrupts access and demands payment. A bootloader is legitimate software involved in starting an operating system, although attackers can sometimes target the boot process. Endpoint security, patching, least privilege, application controls, user awareness, and monitoring can all help reduce the risk associated with spyware and other malware.

Question 32.

What is the primary purpose of a security policy?

1. To replace all technical security controls
   2. To define organizational security requirements, responsibilities, and expectations
   3. To guarantee that no cyberattack will ever occur
   4. To increase network bandwidth automatically

Correct Answer: 2

Explanation:

A security policy defines rules, responsibilities, expectations, and requirements for protecting organizational systems and information. Policies can address areas such as acceptable use, access control, passwords, data handling, remote access, incident reporting, and device security. A policy does not replace technical controls; rather, technical and procedural controls should support and enforce policy requirements. No policy can guarantee that attacks will never occur, and policies do not automatically increase network performance. Effective security governance uses policies to establish consistent expectations and then supports them with standards, procedures, training, monitoring, enforcement, and regular review.

Question 33.

Which protocol is commonly used for secure remote command-line administration of network devices and servers?

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

Correct Answer: 1

Explanation:

SSH provides encrypted remote command-line access and can protect credentials and administrative traffic from passive interception. Telnet provides similar terminal functionality but normally transmits information without strong encryption, making it unsuitable for secure administration across untrusted networks. HTTP is used for web communication, while TFTP provides a simple file-transfer service with minimal security features. Secure administration is important because privileged management sessions may expose highly sensitive credentials and configuration information. Organizations should also use strong authentication, restricted management networks, logging, role-based permissions, and other controls in addition to encrypted remote administration protocols.

Question 34.

Which action is most appropriate when an employee receives an unexpected email requesting their password?

1. Reply with the password immediately
   2. Forward the password to all team members
   3. Disable endpoint protection before opening the message
   4. Treat the message as suspicious and report it through the organization’s security process

Correct Answer: 4

Explanation:

Legitimate organizations generally should not request passwords through unexpected email messages. Such a request is a strong phishing indicator. The user should avoid providing credentials, interacting with suspicious links or attachments, and instead report the message according to organizational procedures. Security teams can then analyze the message, identify similar campaigns, block malicious infrastructure, and warn other users if necessary. Sending the password would expose the account, while disabling endpoint security would increase risk. Security awareness is an important part of layered defense because technical controls may not detect every social-engineering attempt before it reaches a user.

Question 35.

Which Palo Alto Networks security concept is most closely associated with identifying applications rather than relying only on port numbers?

1. VLAN tagging
   2. Static routing
   3. Application identification
   4. Disk encryption

Correct Answer: 3

Explanation:

Application identification allows security policy to consider the actual application generating traffic rather than depending only on traditional port and protocol information. Modern applications may use dynamic ports, share common ports such as TCP 443, or attempt to avoid simple port-based controls. Application-aware visibility helps administrators create more precise policies and understand how network resources are being used. VLAN tagging identifies logical Layer 2 network membership. Static routing defines manually configured network paths. Disk encryption protects stored information. Application identification is especially valuable in next-generation firewall environments where policy decisions need deeper context about traffic.

Question 36.

Why is security awareness training useful for employees?

1. It automatically patches every company device
   2. It helps users recognize and respond appropriately to threats such as phishing and social engineering
   3. It replaces the need for access control
   4. It guarantees that employees will never make mistakes

Correct Answer: 2

Explanation:

Security awareness training helps employees recognize suspicious situations and understand how to respond according to organizational procedures. Topics may include phishing, password security, sensitive-data handling, social engineering, removable media, safe browsing, and incident reporting. Training does not replace technical controls such as authentication, patching, firewalls, or endpoint protection. It also cannot guarantee that users will never make mistakes. Instead, awareness reduces risk by helping people make better security decisions and report suspicious activity earlier. Since attackers frequently target users through deceptive communication, trained employees can serve as an important layer of defense.

Question 37.

Which practice provides the strongest protection for important data against accidental deletion or ransomware-related loss?

1. Maintaining tested backups that are appropriately protected from the production environment
   2. Increasing the number of desktop shortcuts
   3. Disabling all system logs
   4. Sharing one administrator account among employees

Correct Answer: 1

Explanation:

Protected and tested backups provide a recovery path when important data is deleted, corrupted, encrypted, or otherwise lost. Backups should be created according to business requirements, monitored, and regularly tested to verify that restoration actually works. They should also be protected from the same credentials or attack paths that could compromise production systems. Desktop shortcuts do not protect data. Disabling logs reduces security visibility, while sharing administrative credentials increases risk and makes accountability difficult. Backups are an important component of resilience, but they should complement prevention, detection, access control, segmentation, patching, and incident response rather than replace them.

Question 38.

Which type of security event would most likely indicate a possible brute-force login attempt?

1. One successful login by a known user
   2. A scheduled system backup
   3. A software update from an approved source
   4. Many failed login attempts against an account within a short period

Correct Answer: 4

Explanation:

A large number of failed authentication attempts over a short period can indicate a brute-force password attack, although legitimate causes such as misconfigured applications should also be considered. Security monitoring systems may correlate repeated failures by account, source address, device, or time period. One normal successful login is not sufficient evidence of brute force. Backups and approved software updates are routine operational events. When suspicious login activity is detected, analysts may investigate source information, affected identities, successful logins, device context, and other evidence before deciding on containment actions such as blocking an attacker or protecting an account.

Question 39.

Which action best follows the principle of least privilege for administrator accounts?

1. Give every employee full administrative access
   2. Use the same administrator password for all systems
   3. Grant elevated privileges only when they are required for authorized administrative tasks
   4. Disable authentication for administrators

Correct Answer: 3

Explanation:

Least privilege means granting only the permissions necessary for legitimate tasks and limiting those permissions in scope and duration when possible. Administrative privileges are particularly sensitive because compromised administrator accounts can create users, change configurations, disable controls, or access confidential information. Giving all employees administrative access greatly increases risk. Reusing administrator passwords makes compromise more damaging, while disabling authentication removes a fundamental security control. Organizations may use separate administrative accounts, privileged-access management, multi-factor authentication, role-based permissions, approval workflows, logging, and temporary privilege elevation to reduce risks associated with powerful accounts.

Question 40.

Which statement best describes a secure cybersecurity strategy?

1. Security should depend entirely on one perimeter firewall.
   2. Security should combine prevention, visibility, detection, response, and recovery across multiple layers.
   3. Security monitoring should be disabled after systems are deployed.
   4. Every internal user and device should automatically be trusted.

Correct Answer: 2

Explanation:

A strong cybersecurity strategy combines multiple security capabilities across identity, endpoints, networks, cloud environments, applications, data, and operational processes. Prevention reduces successful attacks, visibility helps teams understand activity, detection identifies suspicious behavior, response limits impact, and recovery restores normal operations. Relying only on one perimeter control creates a single point of security failure. Disabling monitoring removes important visibility, while automatically trusting internal users or devices conflicts with modern zero-trust principles. Layered security is more resilient because attackers may bypass individual controls, but additional safeguards can still detect, contain, or reduce the impact of the intrusion.