Cisco Certified Network Associate (CCNA) Practice Exam

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare for the Cisco Certified Network Associate (CCNA) Practice Exam. Test your knowledge with our interactive quizzes featuring multiple choice questions, hints, and explanations. Equip yourself for success!

Practice this question and more.

Which of the following is NOT a router redundancy protocol?

Open Shortest Path First (OSPF)
Virtual Router Redundancy Protocol (VRRP)
Hot Standby Router Protocol (HSRP)
Gateway Load Balancing Protocol (GLBP)

The correct answer is: Open Shortest Path First (OSPF)

The choice of Open Shortest Path First (OSPF) as the correct answer is appropriate because OSPF is primarily a link-state routing protocol used to determine the best path for data through a network. Its main function is to manage the routing within a single autonomous system and enable routers to exchange routing table information. While it plays a crucial role in dynamic routing and can contribute to network reliability, it does not serve as a redundancy protocol. In contrast, the other options – Virtual Router Redundancy Protocol (VRRP), Hot Standby Router Protocol (HSRP), and Gateway Load Balancing Protocol (GLBP) – are specifically designed to provide redundancy for routers. These protocols ensure that if one router fails, another can take over seamlessly to maintain network availability and prevent downtime. Thus, OSPF stands out as it does not focus on redundancy, making it the correct answer to the question regarding which option is NOT a router redundancy protocol.