WGU Network-and-Security-Foundation Exam Dumps

The Network layer (Layer 3 of the OSI model) includes the Internet Control Message Protocol (ICMP), which is used for network diagnostics (e.g., ping command). ICMP helps in error reporting and network troubleshooting.

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

Session layer manages communication sessions.

Application layer provides end-user services.

A broadband router is a type of network router that connects multiple computers within a local network while also providing internet access. It functions as a gateway between the local network and the internet by handling data packet transmission and routing. Broadband routers are widely used in small offices and homes because they offer essential networking services, including DHCP, NAT, and sometimes wireless connectivity.

Inter-provider border routers are used by ISPs to route data between different providers and do not serve as an internet gateway for end users.

Subscriber edge routers are typically deployed at the edge of an ISP's network to connect subscriber networks but do not provide full internet routing functionalities.

Core routers operate at the backbone level of a network, facilitating high-speed data transfer but not connecting end-user devices directly.

Role-Based Access Control (RBAC) assigns permissions based on a user's role within an organization, such as department, job function, or hierarchy. This ensures that users only have access to resources necessary for their duties.

Attribute-based access control (ABAC) considers dynamic attributes like time, location, and device.

Context-based access control restricts access based on environmental conditions.

Discretionary access control (DAC) allows data owners to determine access rights.

Configuring RADIUS authentication enhances 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.

WEP is outdated and insecure; WPA2/WPA3 with RADIUS should be used instead.

A bus topology is a network design choice, not a security measure.

Avoiding asymmetric encryption weakens security rather than improving it.

A launch point attack occurs when an attacker compromises a system and uses it as a foothold to spread malware, conduct reconnaissance, or launch further attacks against other systems. Botnets and command-and-control (C2) servers operate this way.

Denial of availability disrupts service, but does not spread attacks.

Data export steals data instead of launching further attacks.

Data modification changes existing information but does not involve propagating threats.