WGU D315 Network and Security – Foundations OA | Objective Assessment 2025 | 70 Verified Questions and Answers | 100% Score

This document includes all 70 real questions and correct answers for the WGU D315 Network and Security – Foundations Objective Assessment, updated for 2025. 1. Of the following types of encryption uses the same key for both encryption and decryption? Symmetric encryption Asymmetric encryption Hashing Digital signature 2. What is the full meaning of the acronym WPA in the context of wireless network security? Wired Protected Access Wireless Protected Access Web Protected Access Wide Protected Access 3. Which protocol of the TCP/IP suite addresses reliable data transport? Transmission control protocol (TCP) User datagram protocol (UDP) Internet protocol (IP) Internet control message protocol (ICMP) 4. Which of the following best describes the characteristics of a hybrid cloud environment? A) It exclusively uses on-premises infrastructure. B) It integrates both private and public cloud resources to enhance flexibility. C) It operates solely in a public cloud setting. D) It is a type of cloud that does not allow data sharing between environments. 5. Which of the following protocols is specifically designed for secure file transfer using SSH? SFTP FTP RCP HTTP 6. Which type of firewall only performs its security inspection during the establishment of the session between a host and server? Correct answer 7. In which of the following ways is VLAN hopping a potential threat? VLAN hopping enables an attacker to scramble a switch's patch panel connections. VLAN hopping enables an attacker to rename the default VLAN on a switch. VLAN hopping enables an attacker to access different VLANs using 802.1q spoofing. VLAN hopping enables an attacker to change the native VLAN on a switch. 8. "What is the primary function of a firewall?" Filtering out spam emails Protecting against physical intrusions Acting as a barrier between internal and external networks Improving network speed and efficiency 9. The following command-line utility in Windows can be used to display information about computer's network configuration settings (including its IP address, subnet mask, DNS server address, and default gateway). TRACERT PING IFCONFIG NETSTAT IPCONFIG 10. The device that operates at the Data Link Layer is a Repeater Switch/bridge Router Hub 11. Device that forwards data packets between computer networks is a ___________ Router Hub Switch Repeater 12. What are "Zero-Day Vulnerabilities" in the context of cybersecurity? Newly discovered security vulnerabilities in software or hardware for which no official patch or fix is available. Vulnerabilities with zero impact on network security. Security vulnerabilities that are over a day old and no longer considered a significant threat. Security patches released on the same day a vulnerability is discovered. 13. Which type of network is typically confined to a small area, such as a single room, floor, or building? MAN CAN LAN WAN 14. What is the cloud service model that allows users to access and use software applications hosted on the internet without needing to manage the underlying infrastructure? IaaS PaaS SaaS DaaS