As stated on the official website AWS Certified Advanced Networking – Specialty validates expertise in designing and maintaining network architecture for the breadth of AWS services. I’ve read a lot about this exam and most people said that it is one of the most difficult AWS exams. I have only taken 2 AWS exams before, so it’s hard to judge, but ANS-C00 was definitely a challenging exam. Exam I expected long questions and complicated scenarios and because of that, I went to the exam center....

PCNSA stands for Palo Alto Networks Certified Network Security Administrator, and according to the official website, it validates the knowledge and skills required for network security administrators responsible for deploying and operating Palo Alto Networks NGFWs. Resources I used materials provided by Palo Alto for free (amazing!), namely: On-demand Firewall 9.1 Essentials: Configuration and Management course available on a beacon platform Official study guide Documentation Practice exam Exam In my opinion exam questions were pretty well aligned with the objectives and most of the questions were covered in the materials that I have used....

In this short article, I would like to point out some similarities and differences in using passive-interface command between two link-states protocols Open Shortest Path First (OSPF) and Intermediate System to Intermediate System (IS-IS). Topology Every router has a Loopback0 configured with IP address X.X.X.X/32, where X is the router number, i.e R2 (2.2.2.2/32) Transit links are configured with IP addresses 10.X.Y.0/24, where X and Y are adjacent router numbers, i....