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  2. Spamming - Wikipedia

    en.wikipedia.org/wiki/Spamming

    An email inbox containing a large amount of spam messages. Spamming is the use of messaging systems to send multiple unsolicited messages (spam) to large numbers of recipients for the purpose of commercial advertising, non-commercial proselytizing, or any prohibited purpose (especially phishing), or simply repeatedly sending the same message to the same user.

  3. Automatic repeat request - Wikipedia

    en.wikipedia.org/wiki/Automatic_repeat_request

    Automatic repeat request (ARQ), also known as automatic repeat query, is an error-control method for data transmission that uses acknowledgements (messages sent by the receiver indicating that it has correctly received a message) and timeouts (specified periods of time allowed to elapse before an acknowledgment is to be received) to achieve ...

  4. Wikipedia:Bots/Noticeboard - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Bots/Noticeboard

    discuss non-urgent bot issues, bugs and suggestions for improvement. Do that at the bot operator's talk page; discuss urgent/major bot issues. Do that according to instructions at WP:BOTISSUE; discuss general questions about the MediaWiki software and syntax. We have the village pump's technical section for that; request approval for your new bot.

  5. CAPTCHA - Wikipedia

    en.wikipedia.org/wiki/Captcha

    This CAPTCHA (reCAPTCHA v1) of "smwm" obscures its message from computer interpretation by twisting the letters and adding a slight background color gradient.A CAPTCHA (/ ˈ k æ p. tʃ ə / KAP-chə) is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam.

  6. Selective Repeat ARQ - Wikipedia

    en.wikipedia.org/wiki/Selective_Repeat_ARQ

    Selective Repeat is part of the automatic repeat request (ARQ). With selective repeat, the sender sends a number of frames specified by a window size even without the need to wait for individual ACK from the receiver as in Go-Back-N ARQ. The receiver may selectively reject a single frame, which may be retransmitted alone; this contrasts with ...

  7. Template talk:Did you know - Wikipedia

    en.wikipedia.org/wiki/Template_talk:Did_you_know

    Copy and paste the hook into a chosen slot. Make sure there's a space between ... and that, and a ? at the end. Check that there's a bold link to the article. If it's the lead (first) hook, paste the image where indicated at the top of the template. Copy and paste ALL the credit information (the {{DYKmake}} and {{DYKnom}} templates) at the bottom

  8. Repetition code - Wikipedia

    en.wikipedia.org/wiki/Repetition_code

    May 2021) (Learn how and when to remove this message) In coding theory , the repetition code is one of the most basic linear error-correcting codes . In order to transmit a message over a noisy channel that may corrupt the transmission in a few places, the idea of the repetition code is to just repeat the message several times.

  9. Replay attack - Wikipedia

    en.wikipedia.org/wiki/Replay_attack

    A replay attack (also known as a repeat attack or playback attack) is a form of network [1] attack in which valid data transmission is maliciously or fraudulently repeated or delayed. [1] This is carried out either by the originator or by an adversary who intercepts the data and re-transmits it, possibly as part of a spoofing attack by IP ...