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  2. Denial-of-service attack - Wikipedia

    en.wikipedia.org/wiki/Denial-of-service_attack

    Diagram of a DDoS attack. Note how multiple computers are attacking a single computer. In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to a network.

  3. Top-level domain - Wikipedia

    en.wikipedia.org/wiki/Top-level_domain

    A top-level domain ( TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. [9] The top-level domain names are installed in the root zone of the name space. For all domains in lower levels, it is the last part of the domain name, that is, the last non-empty label of a fully ...

  4. National Military Command Center - Wikipedia

    en.wikipedia.org/wiki/National_Military_Command...

    Coordinates: 38°52′16″N 77°03′20″W. The NMCC in 1976. The National Military Command Center ( NMCC) [1] is a Pentagon command and communications center for the National Command Authority (i.e., the President of the United States and the United States Secretary of Defense ). Maintained by the Department of the Air Force as the "DoD ...

  5. Change your AOL account to a free plan - AOL Help

    help.aol.com/articles/change-your-aol-account-to...

    Follow the steps below to learn how to change your AOL account to a free AOL account. 1. Go to AOL My Account. 2. Hover over My Services | click Subscriptions to access your account information. 3. Click Manage next to your subscription.

  6. Help! My Medicare Card Has Expired. Now What? - Healthline

    www.healthline.com/health/medicare/what-to-do-if...

    If you receive Medicare through the Railroad Retirement Board, you will need to request a new card through rrb.gov. You can also contact them through your local Railroad Retirement Board office or ...

  7. What Is an Emergency Medicine Doctor? - WebMD

    www.webmd.com/a-to-z-guides/what-is-emergency...

    Emergency physicians treat patients from all walks of life and all ages: men and women; adults and children. They treat various illnesses at every stage, including patients with diseases and ...

  8. Use AOL Official Mail to confirm legitimate AOL emails

    help.aol.com/articles/what-is-official-aol-mail

    When we send you important emails, we'll mark the message with a small AOL icon beside the sender name. When you open the message, you'll see the "Official Mail" banner above the details of the message. If you get a message that seems like it's from AOL, but it doesn't have those 2 indicators, and it isn't alternatively marked as AOL Certified ...

  9. Tips to Get Your Medical Records - WebMD

    www.webmd.com/health-insurance/features/how-to...

    Step 4: Fill out a form. Many doctors have a form you can fill out either online or on paper to request your health record. This form may include: Your name, date of birth, and record number or ...