CCNA 2 Exam Questions and Answers 2015

CCNA 2 Exam Questions and Answers 2015

Welcome to our blog post on CCNA 2 Exam Questions and Answers from 2015. If you are preparing for the CCNA certification and are interested in revisiting past exam questions, this post is perfect for you. In this article, we will provide you with a comprehensive set of questions and answers from the CCNA 2 exams conducted in 2015.

Question 1:

What is the purpose of a default gateway in a TCP/IP network?

Answer: The default gateway is responsible for forwarding packets from a local network to remote networks. It acts as an exit point for outgoing traffic and an entry point for incoming traffic.

Question 2:

What are the key differences between TCP and UDP protocols?

Answer: TCP (Transmission Control Protocol) is a reliable and connection-oriented protocol. It ensures that all packets are delivered successfully, and provides features like sequencing and error correction. UDP (User Datagram Protocol), on the other hand, is an unreliable and connectionless protocol. It does not guarantee packet delivery or offer features like sequencing or error correction.

Question 3:

Explain the purpose of Spanning Tree Protocol (STP) in a network.

Answer: Spanning Tree Protocol is used to prevent bridging loops in a network with redundant paths. It establishes a loop-free topology by selecting a root bridge and calculating the best path to reach that root bridge from each network segment. By identifying and blocking redundant paths, STP ensures that broadcast storms and network collisions do not occur.

Question 4:

What is subnetting and why is it important in IP networking?

Answer: Subnetting is the practice of dividing a large network into smaller, more manageable subnetworks. It allows for efficient utilization of IP address space and enhances network performance. Subnetting also improves security by isolating different departments or functions within an organization.

Question 5:

Discuss the OSI model layers and their respective functions.

Answer: The OSI (Open Systems Interconnection) model consists of seven layers, namely:

  1. Physical: Deals with the transmission and reception of unstructured raw data over a physical medium.
  2. Data Link: Responsible for the reliable transmission of data frames between network nodes.
  3. Network: Manages logical addressing and routing of data packets between interconnected networks.
  4. Transport: Provides end-to-end error-free transport of data segments between applications.
  5. Session: Establishes, manages, and terminates sessions between applications on different network devices.
  6. Presentation: Handles data formatting, encryption, compression, and other presentation-related tasks.
  7. Application: Offers services directly to end-user applications and is responsible for the user interface.

These are just a few examples of the CCNA 2 exam questions and answers from 2015. For a more comprehensive set of questions and detailed explanations, make sure to download the complete CCNA 2 Exam Questions and Answers 2015 PDF from our website.

Thank you for reading this blog post. We hope it has been informative and helpful in your CCNA exam preparation!

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