PrepAway Cisco CCNP Switch Certification Practice Test Questions Part 9 300-115 Exam

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PrepAway Cisco CCNP Switch Certification Practice Test Questions Part 9 300-115 Exam

Which routing protocol calculate best path on basis of Dijkstra algorithm?

  • A. RIP
  • B. EIGRP
  • C. BGP
  • D. IGRP
  • E. OSPF
Answer:  E 


OSPF is an open standard widely used and supported routing protocol. It is an interior gateway protocol i.e this is intended to be used within the single autonomous system. It is also a Link State Protocol.

The goal of a routing protocol is to learn routes. Now the way OSPF learns this is by learning about every router and subnet within the entire network. This results in creating a uniform detail in each routers database. The routers keep learning about the routes is by sending LSA (Link State Advertisements) to each other. These LSA contain information about the subnet, router and some other information. When all the LSAs have been exchanged, the router keeps all the information in Link State Database which is also called LSDB. The goal here is to have same information in the LSDB.

Incorrect Answers:

A. RIP - It is a dynamic protocol which uses best route from end to end over a network by using number of hops or route metric to reach destination. It is an interior gateway protocol and is generally used in small to medium sized networks. A router running the RIP Protocol will be sending the content of the routing table to its peers every 30 seconds.

B. EIGRP - it is also an interior gateway protocol and is very effective and supports different topologies and media. If utilized properly, EIGRP scales well and provides very quick convergence times. Some of the advantages of EIGRP are:

  • - Very low usage of network resources during normal operations
  • - Only routing table changes are propagated when a change occurs.
  • - Rapid convergence time for any change that takes place in network.

C. BGP - it is interior gateway protocol for use in autonomous system such as LAN. On the basis of number of Autonomous Systems to reach destination to get best path. It uses Link state algorithms

D. IGRP – it is a Cisco proprietary protocol that uses hop count to calculate best path. Routers use IGRP for routing data exchange within an autonomous system. It was created to overcome RIP protocol limitations when it was being used in large networks. IGRP is also considered as classful routing protocol because the router using this protocol assumes that all subnetwork addresses within the same class A, B or C have same subnet mask as the interface configured subnet mask.

Cisco CCNP Certification Exam 300-115 Practice Tests


About 300-115 Exam

The Cisco 300-115 exam is the second of three tests that an individual should pass in order to obtain the Cisco Certified Network Professional (CCNP) Routing and Switching and Cisco Certified Design Professional (CCDP) credentials.

The Cisco 300-115 SWITCH exam is made up of 30-40 questions. The multiple-choice questions require you to give multiple answers. There are also scenario-based questions, fill-in-the-blank, and drag and drop. The duration of the test is 120 minutes. It is available in English and Japanese. Currently, there is no passing score that has been published by Cisco. The purpose of this certification exam is to test one’s capability to plan, configure, verify, implement, and troubleshoot complicated LAN switching solutions in an enterprise setting. These solutions are for enterprises that operate with the Cisco Enterprise Campus Architecture. In addition, the test covers largely secure WLANs and VLANs integration.

Exam topics:

The topics of the 300-115 exam act as guidelines for the candidates, so that they know what to focus on in their training. Although the content of the test may change and other related topics may be added, these are the general topics you can expect to find in this exam:

  • Infrastructure Services (15%): The individuals should configure and examine such first-hop redundancy protocols as GLBP, HSRP, and VRRP.

  • Infrastructure Security (20%): The candidates have to configure and check switch security features, such as Storm control, Dynamic ARP inspection, Private VLAN, DHCP snooping, IP Source Guard, and Port security. They should also characterize device security with the help of Cisco IOS AAA with RADIUS and TACACS+.

  • Layer 2 Technologies (65%): The students should configure and examine switch administration, Layer 2 protocols (LLDP, UDLD, CDP), VLANs, trunking (dot1Q, VTP pruning, manual pruning), EtherChannels, spanning tree (MST, RPVST+, PVST+, PortFast, BPDUfilter, Rootguard and Loopguard), aggregation and virtualization technologies.

  • The study resources for the 300-115 exam should be Cisco-approved in the sense that they should be official study guides or other Cisco partner learning materials. It is a good idea to visit the Cisco Press website.