CSEC Data Communications And Networking: Quiz!

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  • 1/10 Questions

    Which of the following is the best description of the transmission directions possible in a network?

    • Simplex, half-duplex, full duplex
    • Simplex, half-duplex, full duplex, duplex
    • Half duplex, 2/3 duplex, full duplex
    • Duplex, half duplex, 1/4 duplex
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About This Quiz

CSEC (Communications Security Establishment Canada) is a cryptologic agency set up in 1946, controlled by the Department of National Defence (DND). It's accountable for protecting Canadian electronic information and communication networks. This quiz has been developed to test your knowledge about CSEC basic networking concepts.

CSEC Data Communications And Networking: Quiz! - Quiz

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  • 2. 

    Which of the following is NOT a list of network topologies?

    • Star, bus, ring

    • Star, ring, hybrid

    • Bus, ring, double ring, hexagon

    • Ring, mesh, star, bus,

    Correct Answer
    A. Bus, ring, double ring, hexagon
    Explanation
    The correct answer is "bus, ring, double ring, hexagon". This is because bus and ring are both examples of network topologies, while double ring and hexagon are not commonly recognized network topologies. A bus topology is a linear network where all devices are connected to a single cable, while a ring topology is a circular network where each device is connected to two neighboring devices forming a closed loop. Double ring and hexagon are not standard network topologies and are not commonly used in networking.

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  • 3. 

    Which network topology has a central device which brings all the signals together?

    • Bus

    • Star

    • Ring

    • Hybrid

    Correct Answer
    A. Star
    Explanation
    A star network topology has a central device, usually a switch or hub, which brings all the signals together. In this topology, all devices are connected directly to the central device, forming a star-like structure. This central device acts as a central point of control and communication for all connected devices, allowing them to communicate with each other through the central hub.

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  • 4. 

    Which network topology requires terminators at the ends of the lines?

    • Ring

    • Bus

    • Star

    • Mesh

    Correct Answer
    A. Bus
    Explanation
    The correct answer is bus. In a bus network topology, all devices are connected to a single backbone cable. The terminators are required at the ends of the lines to prevent signal reflection and ensure that the signal travels in only one direction. Without terminators, the signal would bounce back and forth, causing interference and communication issues.

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  • 5. 

    A blank converts digital signals to analog signals and also analog signals to digital signals.

    Correct Answer
    modem
    Explanation
    A modem is a device that converts digital signals from a computer or other digital device into analog signals that can be transmitted over telephone lines. It also converts analog signals received from the telephone lines back into digital signals that can be understood by the computer or digital device. This allows for the transmission of data over telephone lines, enabling internet connectivity and communication between digital devices.

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  • 6. 

    A blank is a number of computers linked together to allow them to share data and/or other resources.

    Correct Answer
    computer network, network, Computer network, Network
    Explanation
    A network is a collection of interconnected devices, such as computers, servers, and printers, that can communicate with each other and share resources. Networks can be as small as a few devices in a home office or as large as millions of devices across the globe. The internet is an example of a vast network that connects billions of devices worldwide.

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  • 7. 

    Which of the following are types of computer networks?

    • LAN, NAN, WAN

    • WAN, ring, star, bus

    • Old boys' network, old girls' network, business associates

    • Extranet, intranet, LAN, WAN

    Correct Answer
    A. Extranet, intranet, LAN, WAN
    Explanation
    Extranet, intranet, LAN, and WAN are all types of computer networks. An extranet is a private network that allows access to specific external users, such as suppliers or customers. An intranet is a private network that is only accessible to an organization's internal users. LAN stands for Local Area Network, which is a network that connects devices within a limited area, such as a home or office. WAN stands for Wide Area Network, which is a network that connects devices over a large geographical area, such as multiple offices or cities.

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  • 8. 

    In data communications and networking, _______ is a network topology in which each node is connected to exactly two other nodes, forming a single continuous pathway for signals through each node.

    Correct Answer
    Bus, bus
    Explanation
    In a bus topology, all devices are connected to a single cable or "bus." This cable acts as the backbone of the network, and all communication between devices travels along this shared medium. Bus topology is simple to implement and requires less cabling than other topologies, but it can be susceptible to network disruptions if the bus cable fails.

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  • 9. 

    All communication systems must have a sender, a receiver, and a blank.

    Correct Answer
    communication channel, channel, communication medium, transmission medium
    Explanation
    All communication systems require a sender to transmit information, a receiver to receive the information, and a communication channel or medium through which the information is transmitted. The terms "communication channel" and "channel" are used interchangeably to refer to the pathway through which the information travels. Similarly, "communication medium" and "transmission medium" are also used interchangeably to describe the means by which the information is transmitted, such as wires, cables, or airwaves.

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  • 10. 

    This cable uses light to transmit data instead of magnetic signals.

    Correct Answer
    fibre optic cable, fibre optics , fibre, fibre cable, fibre optics cable
    Explanation
    This cable, known as a fiber optic cable, utilizes light to transmit information instead of relying on magnetic signals. The use of light allows for faster and more efficient data transmission, making it an ideal choice for high-speed internet connections and long-distance communication. The cable is made up of thin strands of glass or plastic, known as fibers, which carry the light signals over long distances. The term "fiber optics" is often used interchangeably with "fiber optic cable" to refer to this technology.

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  • Current Version
  • Nov 22, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 05, 2009
    Quiz Created by
    Batchjunk
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