Cisco Networking Course Assessment
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Questions and Answers

What is the purpose of a hub in a network?

  • To filter and forward data based on MAC addresses.
  • To interconnect different networks together.
  • To provide wireless connectivity to devices.
  • To connect devices within the same network segment. (correct)

    • Which layer of the OSI model is responsible for error detection and control?

  • Network Layer
  • Physical Layer
  • Data Link Layer (correct)
  • Transport Layer

    • What does CSMA/CD stand for in the context of Ethernet?

  • Channel Segmentation with Media Distribution
  • Controlled Switching Mechanism for Addressing
  • Carrier Sense Multiple Access with Collision Detection (correct)
  • Central Switching Module Algorithm for Data

    • In a wireless LAN, what does IEEE 802.11 refer to?

    <p>A standard for wireless communication</p> Signup and view all the answers

    What is the main difference between a bridge and a switch in networking?

    <p>Bridges operate at the physical layer while switches operate at the data link layer.</p> Signup and view all the answers

    Which of the following best describes the function of a router in a network?

    <p>To connect multiple networks together and route data between them.</p> Signup and view all the answers

    What is the role of switches in a packet-switched network?

    <p>Decide the order in which packets are transmitted</p> Signup and view all the answers

    What is the function of the input buffer in a switch?

    <p>Store packets that have just arrived to that link</p> Signup and view all the answers

    Which factor contributes to output buffer queuing delays in a packet-switched network?

    <p>Congestion in the network</p> Signup and view all the answers

    What does the processing time delay in a packet-switched network involve?

    <p>Forwarding time only</p> Signup and view all the answers

    How is the two-packet delay calculated in a packet-switched network?

    <p>$2(d_{propagation}+d_{transmission}) + d_{p.Time}$</p> Signup and view all the answers

    What causes variable delays and depends on network congestion in a packet-switched network?

    <p>Output buffer queuing delays</p> Signup and view all the answers

    What technology is used to split traffic data into packets for routing over a shared network?

    <p>Packet-switching</p> Signup and view all the answers

    In packet-switched networks, what does the header of a packet contain?

    <p>Source and destination addresses</p> Signup and view all the answers

    What is the main characteristic of packet-switched networks in terms of data transfer initiation?

    <p>No call set-up before data transfer</p> Signup and view all the answers

    In the context of packet-switched networks, how are packets handled at each node?

    <p>Received, stored, and forwarded</p> Signup and view all the answers

    Which type of network technology allows many pairs of nodes to communicate over the same channel without requiring an established circuit?

    <p>Packet-switched networks</p> Signup and view all the answers

    What replaced telephones in the context of switched circuits to enable carrying computer data?

    <p>Modems</p> Signup and view all the answers

    What does the term 'open' refer to in the context of the network model described?

    <p>The ability to connect any two systems adhering to the reference model and standards</p> Signup and view all the answers

    What is the main purpose of dividing network communication into smaller parts as mentioned in the text?

    <p>To make it easier to understand how information travels through networks</p> Signup and view all the answers

    Which layer of the OSI reference model is responsible for explaining how packets travel through various layers to reach another device on the network?

    <p>Layer 3 - Network</p> Signup and view all the answers

    What is the OSI reference model primarily focused on achieving?

    <p>Facilitating communication between computers over different network mediums</p> Signup and view all the answers

    Which layer of the OSI model deals with establishing, maintaining, and terminating connections between applications?

    <p>Layer 5 - Session</p> Signup and view all the answers

    In terms of network compatibility, what does the OSI reference model aim to achieve for different types of hardware and software?

    <p>Enabling them to communicate with each other by adhering to standards</p> Signup and view all the answers

    In Circuit Switching, what happens if any link in the path between the Hosts is broken?

    <p>Communication is lost</p> Signup and view all the answers

    What type of topology describes the layout of the wire and devices, as well as the paths used by data transmissions?

    <p>Physical Topology</p> Signup and view all the answers

    Which topology defines how hosts communicate across the medium in a network?

    <p>Ring Logical Topology</p> Signup and view all the answers

    What is the main difference between Bandwidth availability in Circuit Switching and Packet Switching?

    <p>Bandwidth is variable in both Circuit and Packet Switching</p> Signup and view all the answers

    How is Bandwidth utilization different between Circuit Switching and Packet Switching?

    <p>Bandwidth utilization is full in Circuit Switching and partial in Packet Switching</p> Signup and view all the answers

    What type of transmission method does Circuit Switching employ compared to Packet Switching?

    <p>No store-and-forward transmission</p> Signup and view all the answers

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