To prepare for subnetting questions, practice using various subnetting techniques and familiarize yourself with quick methods, such as the Subnetting Cheat Sheet.

 Routing Protocols

Another key area is routing protocols. You need to know how to configure, verify, and troubleshoot both static and 200-125 exam questions answers dynamic routing protocols, such as RIP (Routing Information Protocol), EIGRP (Enhanced Interior Gateway Routing Protocol), and OSPF (Open Shortest Path First).

Cisco exams often include simulation-based questions that require you to configure or troubleshoot routing issues in a virtual environment. Make sure you practice these concepts in a lab environment.

 Switching Concepts

Switching is equally important as routing on the CCNA exam. Make sure you're comfortable with VLANs (Virtual Local Area Networks), inter-VLAN routing, and switch security. Additionally, you should have a good understanding of Spanning Tree Protocol (STP), as it is commonly tested.

 Network Security

You’ll also need to understand fundamental security principles, including how to configure access control lists (ACLs), Cisco Certification Salary VPNs, and firewalls. Network security topics have become more prominent in recent years, reflecting the growing importance of secure networks in today digital world.

 Wide Area Networks (WAN)

Finally, WAN topics are also heavily tested on the 200-125 exam. These include protocols like Frame Relay, MPLS, and PPP (Point-to-Point Protocol). Understanding how to configure and troubleshoot WAN connections will be crucial.

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