The Unbeatable Quiz On CCNA 3 (Chapter 2)

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Did you know that if one is to continuously test their knowledge they are considered to be at a lower risk of forgetting the content covered come exam time? If you believe this then take this CCNA 3 chapter 2 quiz below and get to retain what the chapter consists of. All the best!


Questions and Answers
  • 1. 

    Which represents the time it takes a frame to travel from its source station to its final destination on the network?

    • A.

      Tick time

    • B.

      Latency

    • C.

      Hop count

    • D.

      Bits per second

    Correct Answer
    B. Latency
    Explanation
    Latency represents the time it takes for a frame to travel from its source station to its final destination on the network. It is the delay or the amount of time it takes for data to travel from one point to another.

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  • 2. 

    Which of the following improves the performance of a shared media LAN?

    • A.

      Installing more servers and printers

    • B.

      Installing a more powerful server

    • C.

      Segmenting the network

    • D.

      Moving the workstations closer together

    Correct Answer
    C. Segmenting the network
    Explanation
    Segmenting the network improves the performance of a shared media LAN by dividing it into smaller, separate segments or subnetworks. This helps to reduce network congestion and collisions, as data traffic is confined to each segment. It also allows for better control and management of network resources, as well as improved security and fault tolerance. By segmenting the network, the overall performance and efficiency of the shared media LAN can be significantly enhanced.

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  • 3. 

    What is read by a switch to begin the forwarding process and reduce latency?

    • A.

      Frame trailer

    • B.

      Destination MAC address

    • C.

      Source MAC address

    • D.

      Checksum

    Correct Answer
    B. Destination MAC address
    Explanation
    A switch reads the destination MAC address to begin the forwarding process and reduce latency. The destination MAC address helps the switch determine the outgoing port to which the frame needs to be forwarded. By reading the destination MAC address, the switch can efficiently deliver the frame to the intended recipient, reducing latency by avoiding unnecessary processing and forwarding.

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  • 4. 

    Switches that receive the entire frame before sending it, use what type of frame forwarding?

    • A.

      Cut-through

    • B.

      Receive and send

    • C.

      Copy and send

    • D.

      Store-and-forward

    Correct Answer
    D. Store-and-forward
    Explanation
    Switches that use store-and-forward frame forwarding method receive the entire frame before sending it to the destination. In this method, the switch checks the integrity of the frame by examining the frame's header and CRC (Cyclic Redundancy Check) before forwarding it. If the frame is error-free, it is then stored in the switch's buffer, and only after the complete frame is received, it is forwarded to the appropriate port. This method ensures that only error-free frames are forwarded, reducing the chances of transmitting corrupt data.

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  • 5. 

    Bridges learn about a network by building a table based on which of the following?

    • A.

      ARP requests

    • B.

      IP addresses

    • C.

      RIP requests

    • D.

      MAC addresses

    Correct Answer
    D. MAC addresses
    Explanation
    Bridges learn about a network by building a table based on MAC addresses. MAC addresses are unique identifiers assigned to network devices, and bridges use these addresses to determine the location of devices on the network. By learning and storing the MAC addresses of devices connected to its ports, a bridge can efficiently forward network traffic to the appropriate destination. ARP requests are used to resolve IP addresses to MAC addresses, but the bridge itself learns and builds its table based on the MAC addresses. RIP requests are used for routing information, and IP addresses are not directly used by bridges for building their tables.

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  • 6. 

    What will be generated when the first Ethernet station detects a collision?

    • A.

      Jam signal

    • B.

      Reset broadcast

    • C.

      CRC misalignment message

    • D.

      NACK

    Correct Answer
    A. Jam signal
    Explanation
    When the first Ethernet station detects a collision, it will generate a jam signal. A jam signal is used to ensure that all stations on the network are aware of the collision and can stop transmitting. This allows for a fair and efficient sharing of the network medium.

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  • 7. 

    What is used to alleviate congestion?

    • A.

      Use a bus topology

    • B.

      Increase the bandwidth

    • C.

      Install more hubs

    • D.

      Use an extended star

    Correct Answer
    B. Increase the bandwidth
    Explanation
    Increasing the bandwidth is used to alleviate congestion. By increasing the bandwidth, more data can be transmitted simultaneously, which helps to reduce congestion on the network. This can be achieved by upgrading the network infrastructure, such as using faster cables or increasing the capacity of the network equipment. Increasing the bandwidth allows for more efficient data transmission and helps to prevent congestion, ensuring smoother and faster communication within the network.

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  • 8. 

    Which area of memory does the switch use to store destination and transmission data?

    • A.

      Delay queue

    • B.

      Memory queue

    • C.

      Memory buffer

    • D.

      Storage partition

    Correct Answer
    C. Memory buffer
    Explanation
    The switch uses a memory buffer to store destination and transmission data. This buffer acts as a temporary storage area for incoming and outgoing data packets. It helps to manage the flow of data between different devices connected to the switch. By using a memory buffer, the switch can handle data transmission efficiently and prevent data loss or congestion.

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  • 9. 

    Which switch type provides connections between ports of like bandwidth?

    • A.

      Programmable

    • B.

      Symmetric

    • C.

      Port-centric

    • D.

      Asymmetric

    Correct Answer
    B. Symmetric
    Explanation
    The switch type that provides connections between ports of like bandwidth is symmetric. In a symmetric switch, the bandwidth of the incoming and outgoing ports is the same, allowing for equal data transfer in both directions. This ensures efficient and balanced communication between devices connected to the switch, without any bottleneck or performance issues.

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  • 10. 

    Which of the following is created by segmenting a LAN with a Layer 2 Switch?

    • A.

      More broadcast domains

    • B.

      Less broadcast domains

    • C.

      More collision domains

    • D.

      Less collision domains

    Correct Answer
    C. More collision domains
    Explanation
    Segmenting a LAN with a Layer 2 Switch creates more collision domains. A collision domain is a network segment where collisions can occur when two or more devices transmit data at the same time. By segmenting the LAN with a Layer 2 Switch, the switch separates the network into multiple collision domains, reducing the chances of collisions. This is achieved by isolating traffic within each segment, allowing devices to transmit data without interfering with each other, resulting in improved network performance and efficiency.

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  • 11. 

    Question 12: Which Layer 1 device is used to extend the coverage area of a LAN segment? A. Router B. Switch xC. Repeater D. Gateway Question 13: The implementation of switching technology helps to decrease congestion by reducing traffic and increasing which of the following?

    • A.

      Attenuation

    • B.

      Available bandwidth

    • C.

      Propagation

    • D.

      Routing protocols

    Correct Answer
    B. Available bandwidth
    Explanation
    Switching technology helps to decrease congestion by reducing traffic and increasing available bandwidth. By using switches, network traffic can be directed more efficiently, allowing for better utilization of available bandwidth. This helps to prevent congestion and ensures that data can flow smoothly across the network.

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  • 12. 

    Question 14: What type of switching method is used when a switch only reads the destination address before forwarding the frame?

    • A.

      Store-and-forward

    • B.

      Read and send

    • C.

      Copy and send

    • D.

      Cut-through

    Correct Answer
    D. Cut-through
    Explanation
    Cut-through switching is a type of switching method used by switches where the switch only reads the destination address before forwarding the frame. In this method, the switch starts forwarding the frame as soon as it has read the destination address, without waiting for the entire frame to be received. This results in lower latency and faster forwarding compared to other switching methods like store-and-forward, where the switch waits for the entire frame to be received before forwarding it.

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  • 13. 

    Which of the following is the default order of Spanning Tree Protocol states? 1. Learning 2. Disabled 3. Blocking 4. Listening 5. Forwarding

    • A.

      4, 3, 1, 2, 5

    • B.

      2, 1, 4, 3, 5

    • C.

      3, 4, 1, 5, 2

    • D.

      1, 4, 3, 5, 2

    Correct Answer
    C. 3, 4, 1, 5, 2
    Explanation
    The default order of Spanning Tree Protocol states is 3, 4, 1, 5, 2. This means that the initial state is Blocking, followed by Listening, Learning, Forwarding, and finally Disabled.

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  • 14. 

    The implementation of switching technology helps to decrease congestion by reducing traffic and increasing which of the following?

    • A.

      Propagation

    • B.

      Routing protocols

    • C.

      Available bandwidth

    • D.

      Attenuation

    Correct Answer
    C. Available bandwidth
    Explanation
    The implementation of switching technology helps to decrease congestion by increasing the available bandwidth. Switching technology allows for more efficient use of network resources by creating dedicated paths for data transmission. This reduces the amount of traffic on any given path, allowing for more bandwidth to be available for other data transmissions. As a result, congestion is minimized and network performance is improved.

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  • 15. 

    Full duplex requires how many pairs of wires?

    • A.

      1

    • B.

      2

    • C.

      3

    • D.

      4

    Correct Answer
    B. 2
    Explanation
    Full duplex communication requires two pairs of wires. In full duplex mode, data can be transmitted simultaneously in both directions, allowing for faster and more efficient communication. Each pair of wires is dedicated to one direction of communication, ensuring that there is no interference or collision between the transmitted signals. This setup enables devices to send and receive data at the same time, enhancing the overall performance and speed of the communication channel.

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  • 16. 

    What percentage of bandwidth is available in each direction when using full-duplex?

    • A.

      75%

    • B.

      100%

    • C.

      50%

    • D.

      125%

    Correct Answer
    B. 100%
    Explanation
    When using full-duplex, which allows for simultaneous transmission and reception of data, the entire bandwidth is available in each direction. This means that there is no sharing or division of the bandwidth, resulting in a 100% availability for both sending and receiving data.

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  • 17. 

    A LAN switch allows many users to communicate in parallel through which of the following?

    • A.

      Routing tables

    • B.

      Virtual circuits

    • C.

      Multipoint protocols

    • D.

      Collision domains

    Correct Answer
    B. Virtual circuits
    Explanation
    A LAN switch allows many users to communicate in parallel through virtual circuits. Virtual circuits are logical connections established between devices in a network. They provide a dedicated path for data transmission, allowing multiple users to communicate simultaneously without interfering with each other. LAN switches use virtual circuits to efficiently forward data packets to their intended destinations, ensuring reliable and fast communication within the network.

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  • 18. 

    What protocol is used to allow redundant paths in a switched/bridged network?

    • A.

      RIP

    • B.

      IGRP

    • C.

      Spanning Tree

    • D.

      ISL

    Correct Answer
    C. Spanning Tree
    Explanation
    Spanning Tree Protocol (STP) is used to allow redundant paths in a switched/bridged network. It prevents loops and ensures that there is only one active path between any two network devices at a time. STP calculates the shortest path and disables redundant links, which prevents network congestion and improves network reliability. By constantly monitoring the network topology, STP can dynamically adapt to changes and reconfigure the network when necessary, allowing for redundant paths to be utilized when the primary path fails.

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  • 19. 

    What describes the time necessary to move a packet from the data link layer to the physical layer?

    • A.

      Packet delay

    • B.

      Transmission time

    • C.

      Convergence

    • D.

      Queuing

    Correct Answer
    B. Transmission time
    Explanation
    The correct answer is "Transmission time." Transmission time refers to the amount of time it takes for a packet to be moved from the data link layer to the physical layer. This includes the time it takes for the packet to be converted into a physical signal and transmitted over the network medium.

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  • 20. 

    Which of the following does a switch use to make forwarding decisions?

    • A.

      An IP address

    • B.

      Transport layer information

    • C.

      Network layer information

    • D.

      A MAC address

    Correct Answer
    D. A MAC address
    Explanation
    A switch uses a MAC address to make forwarding decisions. A MAC address is a unique identifier assigned to each network interface card (NIC) in a device. When a switch receives a data packet, it examines the MAC address of the destination device and uses its internal MAC address table to determine the appropriate port to forward the packet to. This allows the switch to efficiently direct network traffic to the intended recipient.

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  • 21. 

    What occurs each time a switch stores an address?

    • A.

      Clears the routing table

    • B.

      Time stamps it

    • C.

      Places it in the routing table

    • D.

      Checks the subnet mask

    Correct Answer
    B. Time stamps it
    Explanation
    Each time a switch stores an address, it time stamps it. This means that the switch records the time at which the address was stored. Time stamping allows for tracking and monitoring of network activity, as it provides information on when a particular address was added to the switch's memory. It can be useful for troubleshooting, identifying patterns, and analyzing network performance.

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