Free and Premium WGU Network-and-Security-Foundation Dumps Questions Answers

TheNetwork layer(Layer 3 of the OSI model) includes theInternet Control Message Protocol (ICMP), which is used for network diagnostics (e.g.,pingcommand). ICMP helps in error reporting and network troubleshooting.

Transport layerhandles reliable data delivery (e.g., TCP, UDP).

Session layermanages communication sessions.

Application layerprovides end-user services.

Adictionary attackis a password-cracking method that systematically tries common words, phrases, and predictable passwords (e.g., "password123", "admin2024") to gain access to an account. Attackers often compile large lists of weak or reused passwords.

Phishingtricks users into revealing passwords but does not systematically test multiple words.

Credential stuffinguses breached passwords rather than guessing from a list.

Social engineeringmanipulates users but does not rely on automated password attempts.

Thedigcommand in Linux is used for DNS troubleshooting. It queries DNS records and provides detailed information about domain name resolutions.

traceroutetracks the path packets take to a destination but does not diagnose DNS.

netstatlists active connections, not DNS records.

ifconfigis used for managing network interfaces.

Human-centerednessin security design prioritizesuser experience and productivitywhile implementing security measures. It ensures that security policies are intuitive and do not excessively burden users, reducing resistance to security compliance.

Least common mechanismminimizes shared resources to enhance security.

Fail-safeensures secure defaults in case of system failure.

Zero-trust modelassumes no inherent trust in users or devices.

Awireless routeris designed to create an access point that allows wireless devices to connect to a network. It combines the functions of a traditional router with a wireless access point, enabling communication between wired and wireless devices. These routers use Wi-Fi standards (e.g., 802.11ac, 802.11ax) to transmit data wirelessly.

Broadband routersprimarily provide internet connectivity but do not necessarily include Wi-Fi functionality unless specified.

Core routershandle large-scale data routing in the backbone of networks but are not designed for access point creation.

Inter-provider border routersfunction at an ISP level for routing traffic between different networks, not for providing user access.

This scenario describes adata exportattack, where an attacker steals sensitive information (e.g., personal data, trade secrets, or financial records) and transfers it to another entity, often for malicious purposes.

Launch pointrefers to using a compromised system for further attacks.

Denial of availabilitydisrupts access to resources.

Data modificationinvolves unauthorized changes rather than theft.

Configuring RADIUS authenticationenhances Wi-Fi security by requiring user authentication before granting access to the network. This prevents unauthorized users from connecting and mitigates risks from rogue access points.

WEPis outdated and insecure; WPA2/WPA3 with RADIUS should be used instead.

A bus topologyis a network design choice, not a security measure.

Avoiding asymmetric encryptionweakens security rather than improving it.

A violation ofintegrityoccurs whendata is modified incorrectly, whether intentionally or by accident. In this case, anemployee modifying a customer account incorrectlydemonstrates a breach of data integrity.

A and Crelate toavailability, as they describe system downtime.

Drelates toconfidentiality, as it describes improper data protection.

Authorizationis the process of granting specific access rights and permissions based on user roles. By implementingRole-Based Access Control (RBAC), organizations ensure that users only have access to resources necessary for their job functions, reducing the risk of insider threats.

Authenticationverifies identity but does not control access.

Accountinglogs activities but does not restrict access.

Availabilityensures system uptime but is unrelated to permissions.

Thepingcommand in Linux is used to check network connectivity to a specific hostname or IP address. It sends ICMP Echo Request packets and measures response times.

nslookupis used for DNS lookups, not connectivity testing.

ifconfigdisplays network interface configurations but does not test connectivity.

digis used for detailed DNS queries.

TheTransport layer(Layer 4 of the OSI model) includes theTransmission Control Protocol (TCP), which provides reliable, connection-oriented communication. TCP ensures error-checking, sequencing, and retransmission of lost packets.

Application layerdeals with end-user protocols like HTTP and FTP.

Session layermanages communication sessions but not transport protocols.

Network layerfocuses on IP addressing and routing, not transport mechanisms.

Social engineeringinvolves manipulating people into divulging confidential information, often by impersonation, deception, or psychological tactics. Using aforged ID cardto gain trust and extract sensitive information is a classic example of social engineering.

Brute-force attackattempts to guess passwords through automated methods.

Man-in-the-middle attackintercepts communication but does not rely on deception.

Pharmingtricks users into visiting fraudulent websites but does not involve impersonation.

Accounting(also known asauditing or logging) is a network security concept that tracks user activities, includingsuccessful and failed authentication attempts, system changes, and resource access. This helps in detecting and mitigating security breaches.

Authenticationverifies user identity but does not track activity.

Availabilityensures systems remain operational.

Authorizationcontrols user permissions but does not log activities.

Restricting physical accessto data storage facilities is a critical part of database security. Even with strong cybersecurity measures,unauthorized physical accessto servers can lead to breaches. Security strategies includebiometric authentication, surveillance cameras, and restricted entry zones.

Disclosing breachesis required by compliance laws but does not protect data proactively.

Developing algorithmsimproves security but is not a fundamental checklist item.

Outsourcing data managementcan introduce security risks if not properly controlled.

Data modification attacksinvolve unauthorized changes to stored data, altering information to mislead, disrupt, or destroy integrity. Attackers may modify logs, transactions, or records for fraud or sabotage.

Launch pointis when a system is used to attack others.

Data exportis the theft of data.

Denial of availabilitymakes data inaccessible, but does not necessarily modify it.

Infrastructure as a Service (IaaS)provides virtualized computing resources over the cloud, including virtual machines where users can install and configure their own operating systems and applications. It offers flexibility and scalability without requiring hardware investment. Examples include AWS EC2 and Microsoft Azure Virtual Machines.

FaaSexecutes small code functions without infrastructure management.

PaaSprovides a managed platform but not full OS control.

SaaSoffers ready-to-use applications without infrastructure control.

Confidentialityensures that sensitive information is only accessible to authorized individuals.Role-Based Access Control (RBAC)enforces confidentiality by restricting access based on a user's role within an organization, ensuring that only authorized users can view or modify certain data.

Integrityensures data is not altered improperly.

Availabilityensures access to resources but does not manage permissions.

Consistencyis not a CIA triad component.

Confidentialityin IT security ensures that sensitive data remains private and protected from unauthorized access. Encryption is a key measure used to maintain confidentiality by encoding data so that only authorized users can access it.

Integrityensures that data remains accurate and unchanged.

Availabilityensures that data is accessible when needed.

Consistencyis not a component of the CIA triad.