2V0-41.24 Question 127
Select 3A network administrator is configuring routing for a VMware NSX environment. The network has multiple autonomous systems, and the administrator needs to ensure optimal path selection and dynamic route updates between these systems. The administrator is considering using either static routes, OSPF, or BGP for the configuration. Which of the following statements are true about using OSPF and BGP for dynamic routing in this context?
- A
OSPF is preferred for dynamic routing within a single autonomous system because it uses link-state advertisements to maintain an updated topology.
- B
BGP is suitable for dynamic routing between multiple autonomous systems due to its ability to handle complex policies and scalability.
- C
Static routing is more scalable than BGP for managing routes in large-scale environments with multiple autonomous systems.
- D
OSPF requires manual configuration of each route, making it more suitable for static environments.
- E
BGP uses attributes such as AS-PATH and MED to influence routing decisions across autonomous systems.
Show answer and explanation
Correct answers: A, B, E
Explanation
When deciding between OSPF and BGP for dynamic routing in a VMware NSX environment, it's important to consider the use case. OSPF is ideal for dynamic routing within a single autonomous system due to its link-state capabilities and automatic topology updates. BGP, on the other hand, is designed for routing between multiple autonomous systems and offers scalability and policy control through attributes like AS-PATH and MED. Static routing, while simple, is not suitable for large-scale environments due to its lack of scalability and flexibility.
- A. Correct.
OSPF is a link-state protocol designed for dynamic routing within a single autonomous system. It uses link-state advertisements to maintain an accurate and updated network topology.
- B. Correct.
BGP is designed for inter-autonomous system routing and is highly scalable. It is well-suited for environments with multiple autonomous systems and supports complex routing policies.
- C. Incorrect.
Static routing is not scalable for large networks, as it requires manual configuration and lacks the flexibility of dynamic protocols like BGP.
- D. Incorrect.
OSPF is a dynamic routing protocol and does not require manual configuration of each route. It automatically discovers and updates routes using the OSPF algorithm.
- E. Correct.
BGP uses attributes such as AS-PATH and MED to influence routing decisions, providing fine-grained control over route selection across autonomous systems.