LPIC-1 Exam 102: Networking Fundamentals
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Questions and Answers

What is the purpose of files ending in .netdev in systemd-networkd?

  • To create virtual network devices, such as bridge or tun devices (correct)
  • To setup network addresses and routes
  • To set low-level configurations for network interfaces
  • To detect and configure network devices automatically

    • Where can modifications be placed to override the original files in /lib/systemd/network?

  • /lib/systemd/network
  • /etc/systemd/network (correct)
  • /lib/systemd/system
  • /etc/systemd/system

    • What is the purpose of the [Match] section in a .network file?

  • To detect and configure network devices automatically
  • To setup network addresses and routes
  • To define the network interface settings
  • To select the network interface to which the configuration file refers (correct)

    • How can multiple network interfaces be matched with a single configuration file?

    <p>By using a list of whitespace-separated names</p> Signup and view all the answers

    What is the purpose of files ending in .link in systemd-networkd?

    <p>To set low-level configurations for the corresponding network interface</p> Signup and view all the answers

    Study Notes

    Persistent Network Configuration

    • In a TCP/IP network, each node must configure its network adapter to match the network requirements to enable communication.
    • The system administrator must provide the basic configuration so the operating system can set up the appropriate network interface and identify itself and the network features at boot time.

    NetworkManager

    • Most Linux distributions use NetworkManager as a service daemon to configure and control the system's network connections.
    • NetworkManager's purpose is to make network configuration simple and automatic.
    • It arranges route changes, IP address fetching, and updates to the local list of DNS servers when using DHCP.
    • It prioritizes wired connections over wireless connections by default.
    • It tries to keep at least one connection active at all times, whenever possible.

    Network Configuration Files

    • /etc/hostname and /etc/hosts are used for basic TCP/IP host configuration.
    • /etc/nsswitch.conf and /etc/resolv.conf are also used for network configuration.
    • /etc/systemd/network files are used to override network settings.
    • Files ending in .netdev are used by systemd-networkd to create virtual network devices.
    • Files ending in .link set low-level configurations for network interfaces.
    • Files ending in .network set up network addresses and routes.

    systemd-networkd

    • systemd-networkd detects and configures network devices automatically as they appear.
    • It ignores devices already configured by other means.
    • There is little need to add configuration files in most situations.
    • Configuration files can be used to select specific network interfaces using the [Match] section.
    • Matching rules can be based on network interface names, MAC addresses, or shell-style globs.

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    Related Documents

    LPI-Learning-Material-102-500-en-3.pdf

    Description

    Test your knowledge of networking fundamentals, including TCP/IP host configuration and NetworkManager configuration. Practice with this quiz to prepare for the LPIC-1 Exam 102.

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