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Tomoko

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Latest activity by Tomoko
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    Tomoko created an article,

    ARP

    ARP Address Resolution Protocol   ARP is a protocol that can obtain the information of a MAC address from the destination IP address.   This is one of the basic protocols in the AG/AR series. (The ...

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    Tomoko created an article,

    PPPoE

    PPPoE PPP over Ethernet PPPoE is a connection method that applies PPP connection to Ethernet (networks used in offices and ordinary households). When connecting to the Internet, the authentication ...

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    Tomoko created an article,

    Router

    Router Router A router is a relay device with the function for sorting destinations, by referring to the destination information (IP addresses) of data received on a network.   What is routing? Rou...

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    Tomoko created an article,

    Gateway

    Gateway Gateway A gateway is a device or software with the function to relay networks when those with different communication protocols communicate with one another.   Difference between Gateway an...

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    Tomoko created an article,

    Bridge

    Bridge Bridge A bridge is a relay device with the function to sort destinations by referring to the destination information (information of data link layers such as MAC addresses) received on a net...

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    Tomoko created an article,

    eSIM

    eSIM Embedded SIM eSIM means an embedded SIM. Unlike conventional SIM cards, the SIM function of an eSIM card is directly embedded into a terminal itself, which saves time to attach/detach it to/fr...

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    Tomoko created an article,

    IPv6

    IPv6 IPv6 is the version 6 of IP (Internet Protocol). It is a new Internet Protocol defined for addressing problems such as a shortage of IPv4 addresses.   While the length of an IPv4 address is 3...

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    Tomoko created an article,

    IPv4

    IPv4 IPv4 is the version 4 of IP (Internet Protocol). This is the protocol used the most widely on the Internet today. On the contrary, the version 6 is called IPv6.   To identify each computer con...

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    Tomoko created an article,

    IMEI

    IMEI International Mobile Equipment Identifier IMEI is an international mobile equipment identification number.   IMEI is also called a production number, an identification number and a serial numb...

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    Tomoko created an article,

    SIM

    SIM Subscriber Identity Module SIM is an IC chip that records the information required for connecting to a network of a mobile phone carrier.   SIM records 3 kinds of identification numbers. IMSI ...