PrepAway Cisco CCNP Switch Certification Practice Test Questions Part 4 300-115 Exam

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PrepAway Cisco CCNP Switch Certification Practice Test Questions Part 4 300-115 Exam

Which device performs fragmentation of packet?

  • A. Router
  • B. Switch
  • C. Hub
  • D. Bridge
  • D. Ethernet
Answer:  A 


Whenever we connect different networks with each other, we might come across issues where the two different networks can have different packet sizes that can go through their network. If that is the case, then it might go through in one network but cannot match the packet size defined in the other one. The same has been displayed below using an image.

In order to resolve this issue, bigger IP packets are broken into smaller pieces or fragments so that smaller fragments can be sent across the link and the receiving host will reassemble the multiple fragments received by the host and forward accordingly. In this scenario, Router is a device which works on Network layer and is a correct option. One can experience excessive retransmission when there is a packet loss. In case of TCP, acknowledgment will only be sent if a packet is received by the remote host else retransmission will take place.

Incorrect Answer:

B. Switch works on Datalink Layer or Layer 2. As the IP packet belongs to Layer 3, a switch cannot process an IP packet.

C. Hub is a physical device which connects multiple Ethernet devices to make them look as a single network. It works at Physical Layer or Layer 1 and participates in collision detection. It only amplifies the signal and send it to all ports.

D. Bridge is similar to 2 Port switch which divides networks into segments. It also doesn't do any process over IP packet but it does enable communication between two separate computer networks.

E. Ethernet is a type of cable that is used to connect devices.

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.