Validexamtopics gives you Microsoft AZ-900 exam questions built directly from the real AZ-900 exam question bank, updated July 2026.
Every Microsoft AZ-900 question comes with a clear explanation, not just an answer key, so you build real understanding instead of memorizing letters. Get it as a downloadable Microsoft AZ-900 PDF or a timed, interactive Azure Fundamentals practice exam.
A network engineer needs to segment a large flat network to improve performance and security. Which technology should the engineer implement?
VLANs (Virtual Local Area Networks) logically divide a network into separate broadcast domains, improving performance by reducing broadcast traffic and enhancing security by isolating network segments.
Which layer of the OSI model is responsible for end-to-end communication and error recovery between hosts?
The Transport Layer (Layer 4) provides end-to-end communication services, including error recovery, flow control, and reliable data transfer via protocols such as TCP and UDP.
An administrator wants to prevent a specific host from accessing the network. Which feature should be configured on the switch port?
Port security allows an administrator to restrict input to an interface by limiting and identifying MAC addresses of the stations allowed to access the port, enabling them to block unauthorised devices.
Which routing protocol uses bandwidth and delay as its default composite metric?
EIGRP (Enhanced Interior Gateway Routing Protocol) uses a composite metric that by default includes bandwidth and delay. Other factors such as load, reliability, and MTU can also be included but are not used by default.
A company requires that all remote access to the corporate network be encrypted. Which protocol best fulfils this requirement?
IPSec VPN provides encryption, authentication, and data integrity for remote access connections. Unlike Telnet or FTP, it ensures all traffic transmitted over the public internet is secured end-to-end.
