WGU D481 SECURITY FOUNDATIONS OA ACTUAL EXAM 2025/2026 ACCURATE QUESTIONS AND VERIFIED CORRECT SOLUTIONS WITH RATIONALES || 100% GUARANTEED PASS RECENT VERSION

WGU D481 SECURITY FOUNDATIONS OA ACTUAL EXAM 2025/2026 ACCURATE QUESTIONS AND VERIFIED CORRECT SOLUTIONS WITH RATIONALES || 100% GUARANTEED PASS RECENT VERSION 1. Internet Control Message Protocol (ICMP) - ANSWER Protocol to determine if a service or host is available 2. Internet Engineering Task Force (IETF) - ANSWER Standards organization defining protocol standards for the internet 3. Internet Protocol (IPv4) - ANSWER Standard protocol for data transmission in packet-switched networks 4. Intrusion - ANSWER Security event where an unauthorized entity gains or attempts to gain access to a system 5. Intrusion Detection System (IDS) - ANSWER System that detects and responds to unauthorized access attempts 6. iOS - ANSWER Operating system for Apple mobile devices 7. Layered Defense - ANSWER Use of multiple controls in series to protect an asset 8. Likelihood - ANSWER Probability that a vulnerability may be exploited within a threat environment 9. Linux - ANSWER Open-source operating system 10. Log Anomaly - ANSWER Irregularity identified when studying log entries that may indicate events of interest 11. Logging - ANSWER Collecting and storing user activities in a log 12. Logical Access Control Systems - ANSWER Automated systems controlling access to computer resources based on user identity 13. Man-in-the-Middle - ANSWER Attack where an adversary intercepts and alters data between a user and a system 14. Mandatory Access Control - ANSWER Access control managed by the system according to security policies 15. Mantrap - ANSWER Entrance requiring people to pass through two doors one at a time 16. Message Digest - ANSWER Digital signature uniquely identifying data and changing with any modification 17. Microsegmentation - ANSWER Breaking LANs into small zones using firewalls for granular security 18. Multi-Factor Authentication - ANSWER Using multiple factors for identity verification 19. National Institute of Standards and Technology (NIST) - ANSWER US federal agency setting standards for science and technology 20. Non-repudiation - ANSWER Inability to deny an action or message 21. Object - ANSWER Information system entity containing or receiving information 22. Operating System - ANSWER Software that runs a computer and sets standards for applications 23. Oversized Packet Attack - ANSWER Sending a network packet larger than expected, causing system failure 24. Packet - ANSWER Representation of data at Layer 3 of the OSI model 25. Patch - ANSWER Software component that modifies files or settings without changing version number 26. Circuit-switched - ANSWER Creates a path between source and destination devices 27. Extranet - ANSWER Private network for authorized external users to share information 28. Internet Protocol (IP) - ANSWER Delivers packets across networks by handling routing decisions 29. Internet Protocol (IP) Suite - ANSWER Another name for the TCP/IP suite 30. Internetworking - ANSWER Connecting multiple computer networks 31. Intranet - ANSWER Private, internal network 32. Logical Topology - ANSWER Shows how devices connect to a specific segment of the network 33. Network Topology - ANSWER Map of a network and how devices are connected 34. Open Systems Interconnection (OSI) Reference Model - ANSWER Framework of standards for computer system communication 35. Packet-switched - ANSWER Networks that transmit packets as individual messages 36. Physical Topology - ANSWER Physical network devices and devices used to connect 37. What is the primary purpose of a patch panel in networking, and how does it contribute to the organization and management of network connections? - ANSWER · The primary purpose of a patch panel in networking is to act as a central point for the termination and organization of network connections. It plays a crucial role in the organization and management of network cabling within a data center or network infrastructure. · In summary, a patch panel is a vital component of network infrastructure that simplifies cable management, enhances organization, and provides flexibility in network configurations. It contributes to the efficient operation, maintenance, and expansion of network connections, making it an essential tool for network administrators and data center operators. 38. What is ICMP (Internet Control Message Protocol) and what role does it play in computer networks? - ANSWER · ICMP, or Internet Control Message Protocol, is a network-layer protocol within the Internet Protocol (IP) suite. · ICMP plays a crucial role in computer networks by facilitating communication between network devices and providing essential functions for network diagnostics, error reporting, and management 39. Compare TCP and UDP. Explain the differences between these two types of protocols in terms of reliability, sequencing, error detection, and the scenarios where each is best suited. - ANSWER · TCP: Best for scenarios where data integrity and order are critical, like web browsing, email, and file transfers. It's like sending important documents by registered mail. · UDP: Best for real-time applications where speed matters more than perfect data delivery, such as video streaming, online gaming, and VoIP calls. It's like making a phone call where you can tolerate a few missed words. · In simple terms, think of TCP as the method you'd use for important documents where you want everything to arrive correctly and in order. UDP is like sending postcards or making a quick phone call where some information loss is acceptable. The choice between TCP and UDP depends on the specific needs of your application or service. 40. Compare an IDS and an IPS. - ANSWER · IDS: Like a security camera, an IDS monitors network traffic and system activities for signs of suspicious or unauthorized behavior.  Typically used for monitoring and early threat detection. It's like having a security camera in your home to alert you to potential break-ins. · IPS: An IPS not only monitors like an IDS but also takes action to block or mitigate threats in real-time.  Used when proactive threat prevention is essential. It's like having a security system that can automatically secure your home when a threat is detected. 41. When might a vampire tap be used? - ANSWER · A vampire tap is used when you need to connect a new phone line or data cable to an existing cable without cutting or interrupting the existing cable. · It's like adding an extra branch to a tree without chopping down the whole tree. This method is often used to expand network connections in a building without disrupting the current network. 42. Provide examples of scenarios where a media converter would be beneficial. - ANSWER · A media converter is like a language translator for different types of network cables. It's beneficial in scenarios where you need to connect two devices with different cable types.  Fiber to Ethernet: Suppose you have a network device that uses fiber optics (like a super-fast laser) and another that uses regular Ethernet cables (like the cables you use for your computer). A media converter helps them understand each other's language.  Long-Distance Connection: Imagine you need to connect two buildings a few miles apart. One building uses copper cables, while the other has fiber optics. A media converter helps bridge this gap · In all these scenarios, a media converter acts as a translator, making sure devices with different "languages" (cable types) can understand and communicate with each other. 43. Point-to-point Network - ANSWER Network consisting only of directly connected computers and devices 44. Transmission Control Protocol (TCP) - ANSWER Guarantees reliable data stream between two computers 45. Transmission Control Protocol/Internet Protocol (TCP/IP) Reference Model - ANSWER Descriptive framework for computer network protocols 46. Transmission Control Protocol/Internet Protocol (TCP/IP) Suite - ANSWER Collection that provides support to internet-capable systems and devices 47. Data Link Layer - ANSWER Second layer of the OSI model, also called Layer 2 48. Bridges - ANSWER Network devices that interconnect two or more LANs 49. Ethernet - ANSWER Wired system for connecting devices in local area networks 50. Hub - ANSWER Hardware device that connects multiple networking devices 51. IEEE 802.3 Standards - ANSWER Ethernet standards and protocols established by IEEE 52. IEEE 802.3 CSMA/CD Standards - ANSWER Standard specifications for Ethernet 53. Physical Layer - ANSWER First layer of the OSI model, also called Layer 1 54. Protocol - ANSWER Established set of rules for data transmission across devices 55. Redundancy - ANSWER Providing alternate means for network to continue functioning 56. Repeater - ANSWER Device that receives and amplifies a signal 57. Resilience - ANSWER Ability to continue providing acceptable service despite challenges 58. Campus or building backbone distribution - ANSWER The interbuilding cabling that typically consists of fiber optic backbone cabling and twisted pair bundled cabling to support connectivity for a campus or within a building. 59. RJ-45 connector - ANSWER The connector used to physically connect network devices to the Ethernet LAN. 60. TIA-568A - ANSWER A wiring standard for RJ-45 connectors and patch panels. 61. TIA-568B - ANSWER A wiring standard for RJ-45 connectors and patch panels. 62. Crossover cable - ANSWER A cable with a crossover pin configuration used to connect two devices directly without a switch.