Physical Layer Protocols and Connections
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Questions and Answers

What is the typical material used for the core of a fiber optic cable?

  • Silica or glass (correct)
  • Copper
  • Aluminum
  • Plastic

    • What is the main difference between single-mode and multimode fiber cables?

  • Direction of light travel
  • Size of the core
  • Material used for the core
  • Color of the jacket (correct)

    • What is the purpose of fiber patch cords?

  • To protect the fiber optic cables
  • To test fiber optic cables
  • To connect devices to each other (correct)
  • To terminate fiber optic cables

    • What type of mechanism is used in SC connectors?

    <p>Push-pull</p> Signup and view all the answers

    What type of training is required for terminating and splicing fiber-optic cabling?

    <p>Special training</p> Signup and view all the answers

    What is a prerequisite for network communications to occur?

    <p>Establishment of a physical connection to a local network</p> Signup and view all the answers

    Why should fiber cables be protected with a small plastic cap when not in use?

    <p>To prevent damage</p> Signup and view all the answers

    What type of NIC is used for a wireless connection?

    <p>Wireless Local Area Network (WLAN) NIC</p> Signup and view all the answers

    What is the function of the Physical Layer in relation to a data link layer frame?

    <p>It provides the means to transport the bits that make up a data link layer frame</p> Signup and view all the answers

    What is the purpose of Network Interface Cards (NICs)?

    <p>To connect a device to a network</p> Signup and view all the answers

    What are the three basic forms of network media?

    <p>Not specified in the content</p> Signup and view all the answers

    What is the purpose of encoding a complete frame from the data link layer?

    <p>To transmit the frame onto the local media</p> Signup and view all the answers

    What is the primary purpose of Cat 3 cable?

    <p>Voice communication</p> Signup and view all the answers

    According to the TIA/EIA-568 standard, what is the description of the wire color codes for Ethernet cables?

    <p>Wire color codes to pin assignments</p> Signup and view all the answers

    What is the maximum recommended speed for Cat 5 cable?

    <p>100 Mb/s</p> Signup and view all the answers

    What is the purpose of the added separator in Cat 6 cable?

    <p>To allow it to function at higher speeds</p> Signup and view all the answers

    What is the female component of a network device, wall, cubicle partition outlet, or patch panel?

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

    Why is it essential to have high-quality copper media terminations?

    <p>To ensure optimum performance with current and future network</p> Signup and view all the answers

    What is the primary cause of misalignment in fiber-optic termination and splicing?

    <p>Inadequate alignment of the fiber-optic media</p> Signup and view all the answers

    What is the purpose of using an Optical Time Domain Reflectometer (OTDR) in fiber-optic cabling?

    <p>To test each fiber-optic cable segment</p> Signup and view all the answers

    Which of the following is a property of wireless media?

    <p>Carries electromagnetic signals</p> Signup and view all the answers

    What is a major concern in wireless media due to the use of a shared medium?

    <p>Only one device can send or receive at a time</p> Signup and view all the answers

    What is the primary cause of end gap in fiber-optic termination and splicing?

    <p>The media does not completely touch at the splice or connection</p> Signup and view all the answers

    What can be used to field test a fiber-optic cable segment?

    <p>A bright flashlight</p> Signup and view all the answers

    In a logical point-to-point topology, what is the connection between nodes called?

    <p>Virtual circuit</p> Signup and view all the answers

    Which physical LAN topology uses a central intermediate device to connect end devices?

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

    What is the primary difference between bus and ring topologies?

    <p>Need for termination</p> Signup and view all the answers

    In half-duplex communication, what is the primary constraint?

    <p>Both devices can transmit and receive, but not simultaneously</p> Signup and view all the answers

    What is the primary advantage of bus topologies using coax cables?

    <p>Easy setup and cost-effective</p> Signup and view all the answers

    Which LAN topology involves interconnecting multiple star topologies using additional Ethernet switches?

    <p>Extended Star</p> Signup and view all the answers

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