Cisco Certified Network Associate (CCNA) Practice Exam

What are three benefits of GLBP?

1. GLBP supports clear text and MD5 password authentication between GLBP group members.

2. GLBP is an open source standardized protocol that can be used with multiple vendors.

3. GLBP can load share traffic across a maximum of four routers.

4. GLBP supports up to 1024 virtual routers.

The correct answer is: GLBP supports clear text and MD5 password authentication between GLBP group members.

The choice highlighting the support for clear text and MD5 password authentication between GLBP group members is accurate because it emphasizes the security features integral to the Gateway Load Balancing Protocol (GLBP). This protocol works by allowing multiple routers to share the load of client requests, ensuring that no single router becomes a bottleneck. The authentication methods mentioned—clear text and MD5—provide a way to secure communications within the GLBP group, enhancing the overall security of the routing environment. Secure authentication ensures that only authorized routers can participate in the GLBP process, thus safeguarding against potential attacks or unauthorized access. This is particularly important in a network environment where various devices interact and share critical routing tasks. The inclusion of both clear text and MD5 authentication methods gives network administrators flexibility, enabling them to implement the security level that best fits their organization's policy while operating GLBP effectively. In this context, the other options do not accurately represent the main benefits of GLBP as recognized within networking standards or its operational scope, thus not aligning with the core features that highlight its advantages.