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  2. Cisco certifications - Wikipedia

    en.wikipedia.org/wiki/Cisco_certifications

    In 2017, Cisco introduced new ICND1 and ICND2 exams (needed for the new CCNA Routing and Switching). ICND1: 100-105 (Interconnecting Cisco Networking Devices Part 1 v3.0) became the new exam required for CCENT. With this change, CCENT became a sufficient pre-requirement for CCNA Security, CCNA Voice and CCNA Wireless. It is valid for 3 years.

  3. CCIE Certification - Wikipedia

    en.wikipedia.org/wiki/CCIE_Certification

    The Cisco Certified Internetwork Expert, or CCIE, is a technical certification offered by Cisco Systems. The Cisco Certified Internetwork Expert (CCIE) and Cisco Certified Design Expert (CCDE) certifications were established to assist the industry in distinguishing the top echelon of internetworking experts worldwide and to assess expert-level ...

  4. CCNA - Wikipedia

    en.wikipedia.org/wiki/CCNA

    CCNA ( Cisco Certified Network Associate) is an information technology (IT) certification from Cisco Systems. CCNA certification is an associate-level Cisco Career certification. [1] Cisco exams have changed several times in response to changing IT trends. [2] In 2020, Cisco announced an update to its certification program that "Consolidated ...

  5. On March 4, an X user posted about a $24 meal from Five Guys that went viral and highlighted the recent rise of fast-food prices. According to MoneyGeek, a burger, fries and soda at Five Guys ...

  6. March Madness: UConn's incredible 30-0 run powers Huskies ...

    www.aol.com/sports/march-madness-uconns...

    The final score ended up being 77-52, but that was trivial after Connecticut delivered a proverbial TKO to Illinois and a warning shot to the rest of college basketball before and after halftime.

  7. Network Time Protocol - Wikipedia

    en.wikipedia.org/wiki/Network_Time_Protocol

    t. e. The Network Time Protocol ( NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable- latency data networks. In operation since before 1985, NTP is one of the oldest Internet protocols in current use. NTP was designed by David L. Mills of the University of Delaware .

  8. Multistate 911 outage shows fragility of systems, experts say

    www.aol.com/news/multistate-911-outage-shows...

    April 18, 2024 at 7:07 PM. Alex Edelman. A major 911 outage Wednesday showed the urgent need for increased modernization and regulation of the emergency system, experts in telecommunications and ...

  9. Internet Control Message Protocol - Wikipedia

    en.wikipedia.org/wiki/Internet_Control_Message...

    If the resulting TTL is 0, the packet is discarded and an ICMP time exceeded message is sent to the datagram's source address. Many commonly used network utilities are based on ICMP messages. The traceroute command can be implemented by transmitting IP datagrams with specially set IP TTL header fields, and looking for ICMP time exceeded in ...