CCNA(200-301) Exam Questions and answers with 100% correct answers and explanations

1. How does HSRP provide first hop redundancy?  A. It load-balances traffic by assigning the same metric value to more than one route to the same destination m the IP routing table.  B. It load-balances Layer 2 traffic along the path by flooding traffic out all interfaces configured with the same VLAN.  C. It forwards multiple packets to the same destination over different routed links n the data path.  D. It uses a shared virtual MAC and a virtual IP address to a group of routers that serve as the default gateway for hosts on a LAN. Correct Answer: D Section: IP Connectivity Explanation/Reference: Reference: Click here 2. In Which way does a spine-and-leaf architecture allow for scalability in a network when additional access ports are required?  A. A spine switch and a leaf switch can be added with redundant connections between them.  B. A spine switch can be added with at least 40 GB uplinks.  C. A leaf switch can be added with a single connection to a core spine switch.  D. A leaf switch can be added with connections to every spine switch. Correct Answer: D Section: Network Fundamentals Explanation/Reference: Spine-leaf architecture is typically deployed as two layers: spines (such as an aggregation layer), and leaves (such as an access layer). Spine-leaf topologies provide high-bandwidth, low-latency, nonblocking server-to-server connectivity. Leaf (aggregation) switches are what provide devices access to the fabric (the network of spine and leaf switches) and are typically deployed at the top of the rack. Generally, devices connect to the leaf switches. Devices can include servers, Layer 4-7 services (firewalls and load balancers), and WAN or Internet routers.