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Question 41.

Which security concept helps ensure that sensitive data can be viewed only by authorized users?

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

Correct Answer: 1

Explanation:

Confidentiality protects information from unauthorized disclosure. Controls such as encryption, access permissions, authentication, data classification, and secure communication protocols can help maintain confidentiality. Availability focuses on ensuring systems and information remain accessible to authorized users when needed. Scalability describes the ability of a system to handle increased demand, while redundancy provides additional resources that can improve resilience. Confidentiality is one of the three major objectives in the confidentiality, integrity, and availability model. Protecting confidential data is especially important for credentials, financial information, intellectual property, personal information, and other sensitive organizational records.

Question 42.

Which feature most directly allows an organization to inspect and control traffic according to the application generating it?

1. Static routing
   2. DNS forwarding
   3. VLAN trunking
   4. Application-aware security policy

Correct Answer: 4

Explanation:

Application-aware security policy allows traffic decisions to be based on the application being used instead of relying only on ports and protocols. This is useful because modern applications may share common ports, dynamically select ports, or use encrypted connections. Identifying applications gives administrators greater visibility and allows more precise access policies. Static routing determines network paths, DNS forwarding helps resolve names through designated DNS servers, and VLAN trunking carries traffic from multiple VLANs across a link. Application awareness is a core concept in modern next-generation firewall security because it helps organizations control traffic according to actual business use.

Question 43.

Which type of attack uses previously stolen username and password combinations against other websites or services?

1. Packet fragmentation
   2. ARP resolution
   3. Credential stuffing
   4. Data compression

Correct Answer: 3

Explanation:

Credential stuffing uses username and password combinations obtained from previous breaches and tries them against other services. The attack is effective when users reuse the same credentials across multiple accounts. Organizations can reduce credential-stuffing risk with multi-factor authentication, password-reuse detection, monitoring, rate limiting, breached-credential checks, and strong identity controls. Packet fragmentation divides packets into smaller pieces for transmission. ARP resolution maps IP addresses to MAC addresses on a local network. Data compression reduces the size of information. Credential stuffing demonstrates why password reuse can turn one external data breach into risk for many unrelated services.

Question 44.

Which statement best describes the purpose of a default gateway on an endpoint?

1. It resolves domain names into IP addresses.
   2. It provides the next-hop destination for traffic going to networks outside the local subnet.
   3. It assigns application permissions to users.
   4. It encrypts files stored on the device.

Correct Answer: 2

Explanation:

A default gateway is the network device to which an endpoint sends traffic when the destination is outside its directly connected local network and no more specific route exists. In many environments, the default gateway is a router or Layer 3 firewall interface. DNS performs name resolution, while access-control systems determine permissions. File encryption protects stored data. Understanding default gateways is fundamental when troubleshooting connectivity because a device may communicate correctly with systems on its own subnet but fail to reach remote networks if its gateway configuration is missing or incorrect.

Question 45.

Which action most directly improves security when an employee leaves an organization?

1. Disable or remove the employee’s accounts and access promptly.
   2. Continue using the account for shared administrative work.
   3. Publish the former employee’s password for reference.
   4. Remove security logging from the account.

Correct Answer: 1

Explanation:

Promptly disabling or removing accounts when employment ends reduces the risk that former employees or anyone possessing their credentials can continue accessing organizational resources. Offboarding processes may also revoke tokens, certificates, VPN access, application sessions, physical access, and privileged permissions. Shared use of the account weakens accountability and creates unnecessary risk. Publishing credentials is unsafe, while disabling logging removes useful visibility. Effective identity lifecycle management covers account creation, role changes, periodic access review, and timely removal of access when it is no longer needed. This supports least privilege and reduces exposure from stale or abandoned accounts.

Question 46.

Which protocol normally uses TCP port 22 for secure remote administration?

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

Correct Answer: 4

Explanation:

SSH commonly uses TCP port 22 and provides encrypted remote command-line access. It is widely used for securely administering servers, network devices, and other systems. HTTP normally uses TCP port 80, while Telnet commonly uses TCP port 23 and does not provide the same level of encryption. FTP traditionally uses ports associated with file transfer and also lacks strong protection by default. Secure administration should combine encrypted protocols such as SSH with strong authentication, restricted management access, least privilege, and logging. Knowing common protocol and port relationships is useful for troubleshooting and interpreting firewall traffic.

Question 47.

Which cybersecurity control is most appropriate for detecting malicious files and suspicious processes directly on a workstation?

1. Network patch panel
   2. DNS zone transfer
   3. Endpoint detection and response
   4. Static route

Correct Answer: 3

Explanation:

Endpoint detection and response technology monitors activity on endpoints such as laptops, desktops, and servers. It can detect suspicious processes, malicious files, unusual behavior, and other indicators of compromise. EDR tools may also support investigation and response actions such as isolating a device. A patch panel is a physical cabling component. DNS zone transfer synchronizes DNS records between servers, while a static route defines a manually configured network path. Endpoint security complements network controls because some malicious activity occurs locally on devices and may not be fully visible from network traffic alone.

Question 48.

What is the main purpose of a security zone on a firewall?

1. To permanently assign passwords to users
   2. To group interfaces or networks with similar security requirements and apply policy between them
   3. To replace IP addressing
   4. To create physical copies of network traffic

Correct Answer: 2

Explanation:

Security zones logically group interfaces or network areas that have similar trust or security requirements. Firewall policies can then control traffic moving between zones. For example, organizations might use separate zones for users, servers, guest devices, public-facing systems, and external networks. Zones do not replace IP addressing or identity systems, and they do not automatically create traffic copies. Zone-based policy simplifies segmentation by allowing administrators to reason about traffic according to security boundaries rather than individual interfaces alone. Proper zone design can reduce unnecessary connectivity and help limit lateral movement if a system is compromised.

Question 49.

Which term describes a weakness in software, hardware, or configuration that could potentially be exploited?

1. Vulnerability
   2. Backup
   3. Audit
   4. Authentication

Correct Answer: 1

Explanation:

A vulnerability is a weakness that could be exploited to compromise confidentiality, integrity, availability, or another security objective. Vulnerabilities may result from software defects, insecure configurations, outdated components, poor access controls, or design weaknesses. A backup is a copy of data used for recovery. An audit evaluates systems, controls, or processes, while authentication verifies identity. Vulnerability management generally includes discovering assets, identifying weaknesses, assessing their severity and context, prioritizing remediation, applying fixes or mitigations, and confirming that the risk has been reduced.

Question 50.

Which statement best describes a next-generation firewall?

1. It only permits or blocks traffic according to physical cable type.
   2. It provides no application visibility.
   3. It functions only as an unmanaged Layer 2 switch.
   4. It combines traditional firewall functions with deeper traffic visibility and security capabilities.

Correct Answer: 4

Explanation:

A next-generation firewall builds on traditional firewall capabilities by adding deeper traffic inspection and contextual security functions. Depending on the platform and configuration, these can include application identification, user-aware policy, intrusion prevention, URL controls, malware prevention, decryption, and threat intelligence integration. It is not limited to physical cabling decisions and does not function merely as an unmanaged switch. The value of deeper visibility is that modern applications often use shared ports and encrypted connections, so simple port-based rules may not provide enough context for effective security policy.

Question 51.

Which of the following is an example of something a user has as an authentication factor?

1. A password
   2. A remembered PIN
   3. A hardware security token
   4. A fingerprint

Correct Answer: 3

Explanation:

A hardware security token is an example of a possession factor, meaning something the user has. Passwords and PINs are knowledge factors because they are something the user knows. A fingerprint is an inherence factor because it is based on a physical characteristic of the user. Multi-factor authentication combines factors from different categories rather than simply requiring two passwords. This provides stronger protection because an attacker who steals one factor may still lack the second required factor. Possession factors can include hardware tokens, smart cards, or appropriately protected registered devices.

Question 52.

Which statement best describes the role of DNS in normal network communication?

1. It automatically patches operating systems.
   2. It maps domain names to information such as IP addresses.
   3. It encrypts every application session.
   4. It assigns user roles in cloud applications.

Correct Answer: 2

Explanation:

DNS provides name resolution, allowing users and applications to work with human-readable names instead of having to remember numerical IP addresses. A DNS query can return IP addresses and many other types of records. DNS does not patch operating systems, automatically encrypt application traffic, or assign cloud roles. Because name resolution is involved in much network activity, DNS is also important from a security perspective. Monitoring DNS can help identify suspicious domains, malware command-and-control activity, unusual lookups, and other potentially malicious behavior. Secure DNS configuration is therefore part of a broader network-security strategy.

Question 53.

Which security practice reduces the risk caused by employees having more access than their jobs require?

1. Least privilege
   2. Open sharing
   3. Flat authorization
   4. Anonymous administration

Correct Answer: 1

Explanation:

Least privilege limits access to the minimum permissions required for an authorized task. It helps reduce damage caused by compromised credentials, insider misuse, or accidental actions. Organizations can implement least privilege through role-based access, privileged-account separation, periodic access reviews, temporary privilege elevation, and removal of unnecessary permissions. Open sharing increases exposure, while anonymous administration makes accountability difficult. Excessive privileges are particularly risky for administrative accounts because they can modify configurations, create new identities, access sensitive information, or disable security controls. Reducing privilege therefore limits both the likelihood and impact of unauthorized activity.

Question 54.

Which action would most directly help preserve evidence during a cybersecurity incident investigation?

1. Immediately delete all relevant logs.
   2. Reformat affected systems before collecting information.
   3. Share administrative passwords with all employees.
   4. Protect relevant logs and collect appropriate forensic information according to procedure.

Correct Answer: 4

Explanation:

Preserving logs and appropriate forensic information helps investigators reconstruct what occurred, determine scope, identify affected systems, and understand attacker activity. Evidence handling should follow organizational and legal procedures so information remains reliable and appropriately protected. Deleting logs destroys useful evidence. Reformatting systems too early may remove artifacts needed for investigation. Sharing administrator passwords creates additional risk. Incident response often requires balancing rapid containment with evidence preservation. Good preparation includes synchronized clocks, protected centralized logging, documented response procedures, appropriate retention, and trained personnel who understand how to collect and handle relevant information.

Question 55.

Which threat attempts to trick users into visiting a fake website that resembles a legitimate service?

1. Disk mirroring
   2. Load balancing
   3. Phishing
   4. Network segmentation

Correct Answer: 3

Explanation:

Phishing campaigns frequently direct users to fraudulent websites designed to resemble legitimate services. Attackers may attempt to steal usernames, passwords, payment information, or other sensitive data. These sites can be delivered through email, messages, QR codes, or social media. Disk mirroring creates redundant copies of storage data. Load balancing distributes workloads, while network segmentation separates network areas. Organizations can reduce phishing risk through user awareness, URL filtering, email security, multi-factor authentication, browser protections, domain monitoring, and rapid reporting procedures that allow suspicious campaigns to be investigated and blocked.

Question 56.

Which technology is primarily intended to prevent unauthorized access based on defined traffic rules between network areas?

1. Backup server
   2. Firewall
   3. Printer queue
   4. File-compression utility

Correct Answer: 2

Explanation:

A firewall evaluates network traffic against configured security policy and decides whether communications should be allowed, denied, inspected, or handled in another defined way. Firewalls are commonly positioned between networks or security zones with different trust requirements. A backup server provides data protection and recovery, while printer queues and compression utilities serve unrelated purposes. Modern firewalls may consider addresses, ports, applications, users, content, and threat information. Firewall policy should generally permit required business communication while restricting unnecessary or risky traffic. This approach supports segmentation and reduces the attack surface between different parts of an environment.

Question 57.

Which incident-response phase focuses on limiting the spread or impact of a confirmed compromise?

1. Containment
   2. Procurement
   3. Marketing
   4. Capacity planning

Correct Answer: 1

Explanation:

Containment focuses on preventing an incident from spreading further and limiting additional damage. Actions may include isolating compromised endpoints, disabling affected accounts, blocking malicious network indicators, or restricting communications. Exact actions depend on the incident and organizational procedures. Procurement involves acquiring products or services. Marketing and capacity planning are unrelated to incident response. Containment normally follows detection and analysis and may be followed by eradication, recovery, and lessons learned. Security teams should balance containment speed with business impact and evidence preservation, particularly when dealing with widespread or sophisticated compromises.

Question 58.

Which configuration is generally more secure for remote administrator access?

1. Allow unrestricted management access from the entire internet.
   2. Disable all administrator authentication.
   3. Use one shared administrator credential for everyone.
   4. Restrict management access to authorized sources and require strong authentication.

Correct Answer: 4

Explanation:

Restricting management access to trusted or authorized sources reduces exposure of administrative services. Strong authentication, preferably including multi-factor authentication where supported, further protects privileged access. Administrative sessions should also use encrypted protocols and appropriate logging. Allowing unrestricted internet access exposes management interfaces to unnecessary scanning and attack attempts. Disabling authentication would remove a critical security control. Shared credentials weaken accountability and make credential rotation difficult. Administrative interfaces are high-value targets, so organizations should limit who can reach them, who can authenticate, and what actions authenticated administrators are permitted to perform.

Question 59.

Which statement best explains why software updates are important for cybersecurity?

1. They always increase the physical storage capacity of a computer.
   2. They eliminate the need for security monitoring.
   3. They may correct known vulnerabilities that attackers could exploit.
   4. They make authentication unnecessary.

Correct Answer: 3

Explanation:

Software updates often include security fixes for known vulnerabilities. Applying relevant updates reduces opportunities for attackers to exploit weaknesses for which patches are already available. Updates may also improve reliability and functionality. They do not eliminate the need for monitoring, authentication, endpoint protection, firewalls, or other security controls. Patch management usually requires asset inventory, vulnerability awareness, prioritization, testing where appropriate, deployment, and verification. Some systems cannot be updated immediately because of operational constraints, so organizations may use compensating controls until remediation is possible. Keeping software current remains one of the most important basic security practices.

Question 60.

Which approach best supports effective cybersecurity risk reduction in a modern organization?

1. Trust all internal systems automatically.
   2. Combine identity protection, segmentation, threat prevention, endpoint security, monitoring, and recovery capabilities.
   3. Use only passwords and disable additional authentication controls.
   4. Stop collecting security logs to reduce storage usage.

Correct Answer: 2

Explanation:

Modern cybersecurity requires multiple complementary controls because threats can target identities, endpoints, applications, networks, cloud services, and data. Strong identity controls reduce unauthorized access, segmentation limits movement, threat prevention blocks malicious activity, endpoint protection provides host visibility, monitoring supports detection and investigation, and recovery capabilities help restore operations after an incident. Automatically trusting internal systems creates unnecessary risk. Relying only on passwords weakens authentication, while disabling logging reduces visibility. A layered security approach improves resilience because if one control fails, additional controls may still prevent, detect, contain, or reduce the impact of an attack.