Designing Cisco Network Service Architectures

Here you have the best Cisco 300-320 practice exam questions

  • You have 112 total questions to study from
  • Each page has 5 questions, making a total of 23 pages
  • You can navigate through the pages using the buttons at the bottom
  • This questions were last updated on April 22, 2025
Question 1 of 112

In which OSI layer does IS-IS operate?

    Correct Answer: C

    IS-IS (Intermediate System to Intermediate System) is a routing protocol used to move information efficiently within a computer network and operates at OSI Layer 3, the Network Layer. It is primarily used in large service provider networks and is responsible for determining the best routing paths through a network.

Question 2 of 112

Which algorithm does IS-IS use to determine the shortest path through a network?

    Correct Answer: C

    IS-IS (Intermediate System to Intermediate System) uses Dijkstra's algorithm to determine the shortest path through a network. Dijkstra's algorithm is commonly used in link-state routing protocols, where each router maintains a complete map of the network and independently calculates the shortest path to each destination. This algorithm helps in efficiently determining the best path by considering various link states and their associated costs.

Question 3 of 112

Which unique EIGRP feature allows for faster Layer 3 convergence?

    Correct Answer: B

    Feasible successors are a unique feature of EIGRP that allows for faster Layer 3 convergence. When a route becomes unavailable, EIGRP can quickly switch to a feasible successor without the need to recalculate the entire routing table, significantly speeding up convergence time.

Question 4 of 112

EIGRP uses which algorithm to build a routing table?

    Correct Answer: C

    EIGRP (Enhanced Interior Gateway Routing Protocol) uses the Diffusing Update Algorithm (DUAL) to build its routing table. The DUAL algorithm ensures loop-free and efficient routing, making it central to EIGRP's operation.

Question 5 of 112

What is the maximum number of routers that each OSPF area (including the backbone) should contain?

    Correct Answer: C

    The maximum number of routers that each OSPF area (including the backbone) should contain is generally recommended to be 50. This is to ensure efficient management and performance of the routing protocols within the area.