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ccna certification cost in usa.carefully selected useful tools (e.g. ping, traceroutewhois).Various Windows host enumeration capabilities. Note: Although SP2 improves the security of the tool by removing certain specific enhancements. some functionality can be restored by entering the net stopSharedAccess command at the Windows command prompt.Tools like Nmap and SuperScan can effectively perform penetration testing on a network and identify weaknesses in the network while helping to predict possible attack mechanisms. However, network security testing does not prepare network administrators for all security issues.10.5 Business Continuity Planning and Disaster Recovery10.5.1 Continuity Planning and Disaster Recovery10.5.1.1 Business Continuity PlanningThe network can recover from most security problems by adapting the security solution. However, before adjustments are made to the security solution, it is possible that an attack may have occurred and resulted in an outage or catastrophic disruption. A catastrophic disruption is a severe disruption of network services or the complete destruction of data or network systems. Prepared plans are necessary to be able to restore operations and keep them running in the event of a severe disruption or network destruction.Business continuity planning addresses the continuity of operations of the organization in the event of a disaster or extended business interruption that affects the organization's ability to accomplish its mission.These plans include: An emergency response phase; A recovery phase; and A return to normal operations phase.These phases should include a short- or medium-term framework to continue the organization's operations. Each phase also defines the responsibilities of personnel and the resources available in the event of an incident.