CCIE Study Guide 2026
Everything you need to pass the CCIE exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CCIE Exam Format at a Glance
📚 CCIE Topics to Study (23)
✍️ Sample CCIE Questions & Answers
1. What is the main advantage of using Cisco Fabric Path in a data center?
Cisco Fabric Path provides a scalable, high-performance Layer 2 multipath Ethernet fabric for data center networks.
2. When designing OSPF for a large enterprise with 500+ routers, which design choice most effectively reduces CPU and memory consumption on all routers?
Multiple areas restrict LSA flooding to within each area, and ABR summarization reduces the size of the routing table and LSDB on all non-ABR routers, cutting CPU and memory usage.
3. Which Cisco WLC feature automatically adjusts AP transmit power and channel assignment to optimize RF coverage?
Radio Resource Management (RRM) dynamically adjusts AP transmit power and channel assignments based on RF environment analysis.
4. When redistributing rip into OSPF what routes get redistributed into OSPF(choose all that apply)
When redistributing RIP into OSPF, the routes that get redistributed into OSPF are RIP routes and directly connected interfaces running RIP. RIP routes are the routes learned through the RIP routing protocol, while directly connected interfaces running RIP are the interfaces that are directly connected to the router and are running the RIP protocol. The other options, static routes, floating routes, and null routes, are not included in the redistribution process.
5. What transport protocol and port does NETCONF use by default?
NETCONF uses SSH as its transport with the IANA-assigned port 830, providing secure encrypted communication for network configuration.
6. What is the primary difference between stateful and stateless firewalls?
Stateful firewalls maintain a connection table to track session state, allowing return traffic automatically; stateless firewalls inspect each packet in isolation.