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2. Cisco certifications - Wikipedia

   en.wikipedia.org/wiki/Cisco_certifications

   Cisco Certifications are the list of the Certifications offered by Cisco Systems.There are four to five (path to network designers) levels of certification: Associate (CCNA/CCDA), Professional (CCNP/CCDP), Expert (CCIE/CCDE) and recently, Architect (CCAr: CCDE previous), as well as nine different paths for the specific technical field; Routing & Switching, Design, Industrial Network, Network ...

3. CCNA - Wikipedia

   en.wikipedia.org/wiki/CCNA

   CCNA. CCNA (Cisco Certified Network Associate) is an entry-level information technology (IT) certification offered by Cisco Systems. CCNA certification is widely recognized in the IT industry as the foundational step for careers in IT positions and networking roles. [1][2] Cisco exams routinely change in response to evolving IT trends. [3]

4. Frame check sequence - Wikipedia

   en.wikipedia.org/wiki/Frame_check_sequence

   By far the most popular FCS algorithm is a cyclic redundancy check (CRC), used in Ethernet and other IEEE 802 protocols with 32 bits, in X.25 with 16 or 32 bits, in HDLC with 16 or 32 bits, in Frame Relay with 16 bits, [3] in Point-to-Point Protocol (PPP) with 16 or 32 bits, and in other data link layer protocols.

5. Packet Tracer - Wikipedia

   en.wikipedia.org/wiki/Packet_Tracer

   Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks. The software allows users to simulate the configuration of Cisco routers and switches using a simulated virtual User interface . Packet Tracer makes use of a drag and drop user ...

6. 48 hours with Usher: Tour preparation, family time and what's ...

   www.aol.com/48-hours-usher-concert-preparation...

   Anika Reed, USA TODAY. Updated September 10, 2024 at 7:56 AM. Usher's 48 hours in Atlanta: The singer and R&B icon takes USA TODAY along as he prepares for his Past Present Future tour. ATLANTA ...

7. First-hop redundancy protocol - Wikipedia

   en.wikipedia.org/wiki/First-hop_redundancy_protocol

   A first hop redundancy protocol (FHRP) is a computer networking protocol which is designed to protect the default gateway used on a subnetwork by allowing two or more routers to provide backup for that address; [1] [2] in the event of failure of an active router, the backup router will take over the address, usually within a few seconds.