PrepAway Cisco CCNP Switch Certification Practice Test Questions Part 1 300-115 Exam

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PrepAway Cisco CCNP Switch Certification Practice Test Questions Part 1 300-115 Exam

Which is used to break the collision domain in switched network?

  • A. VLAN
  • B. trunk link
  • C. DTP
  • D. CAM table
  • E. Switch Port
Answer:  E 


Switch have single collision domain at each switch port. A collision domain is a segment that is shared by a connected medium through repeaters and data may collide with each other while sending or receiving. It is applicable more in wireless networks however this was also present in wired network as well. Collision occurs when multiple devices tries to send data in the same network segment at the same time. While sending the data, probability increases that the data may collide with each other. If we have to avoid collision, then only one device may send and only one device may receive and by following this process we can avoid collision. Increase in collision will directly impact the efficiency of the network as the device might have to retransmit the lost packet multiple times.

  • a. Routers generally do not allow broadcast traffic to pass through them and whenever a broadcast hits a router, it is stopped there and is not forwarded further. Router and VLAN breaks broadcast domain.
  • b. Trunk ports are point to point links that connects one or more switches and other networking devices and it is used to provide VLAN identification for frames travelling between switches. Traffic from all VLANs is sent and received by a trunk port. There are multiple interface modes that can be configured on a device. Trunk negotiation is managed by DTP.
  • c. DTP is a point to point protocol used to make dynamic trunk link between switches without using any manual configuration. It is a Cisco proprietary protocol and it can negotiate trunking on a link between two VLAN aware switches.
  • d. CAM table or content addressable memory table is used to save mac address table. This is present in all switches. It records mac address of stations and its corresponding port location.

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.