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2. Network operations center - Wikipedia

   en.wikipedia.org/wiki/Network_operations_center

   A network operations center (NOC) is a location where network monitoring and control is exercised over a computer, telecommunication or satellite network. Learn about the history, purpose, design and personnel of NOCs, and see examples of different types of networks they manage.

3. Cisco certifications - Wikipedia

   en.wikipedia.org/wiki/Cisco_certifications

   CCNP is a professional-level certification for Cisco networking engineers, covering various domains such as enterprise, collaboration, data center, security, and service provider. Learn about the CCNP exams, requirements, and paths, as well as other Cisco certifications from associate to expert level.

4. Network administrator - Wikipedia

   en.wikipedia.org/wiki/Network_administrator

   A network administrator is a person who maintains computer infrastructures, especially local area networks (LANs) and wide area networks (WANs). Learn about their duties, skills, and challenges in different organizations.

5. 5ESS Switching System - Wikipedia

   en.wikipedia.org/wiki/5ESS_Switching_System

   5ESS is a Class 5 telephone electronic switching system developed by Western Electric for AT&T and the Bell System in the US. It came into service in 1982 and was used until 2003, and it has three main types of modules: Administrative, Communications and Switching.

6. AT&T outage: Company says network is fully restored after ...

   www.aol.com/news/thousands-t-customers-report...

   AT&T said it has fixed the nationwide outage that affected tens of thousands of its customers on Thursday morning. The cause of the outage is unknown, but federal agencies are investigating ...

7. Microsoft, AT&T customers hit with outages — what to know - AOL

   www.aol.com/news/microsoft-t-customers-hit...

   For premium support please call: 800-290-4726 more ways to ... "We experienced a brief disruption connecting to some Microsoft services on our network," an AT&T spokesperson said in a statement ...