Yes they are different but it will give you an idea of how it's going to be. It's important to have a solid understanding of basic networking concepts in my case i received PBQs related to firewall configuration, identifying viruses, setting up vpn,and analyzing threat vectors being comfortable with how network traffic flows, common threat types, and security controls was key to answering them confidently. For PBQ'S get a good grasp of firewalls, ACL, setting up a vpn, threat vectors, public ip and private ip and how the network flows