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IT infrastructure components The components of IT infrastructure are servers, switches, firewalls, routers and infrastructure software. IT infrastructure solutions •Cost effective solution •Offers better disaster recovery •Better testing environment •Offers better flexibility towards the organization Dynamic scaling with cloud computing Dynamic scalability offers better scalability towards the organization. In addition to this it also offers better infrastructure towards the organization. Security issues with Cloud •Loss of data •Loss of control over IT services •Denial of service attacks •Integrity and confidentiality gets threatened •Chances of data hacking Role and responsibility of an IT infrastructure manager The role of an IT infrastructure includes proper management of staff, having proper control over vendor management , setting proper standards and procedures that will help in achieving the goal of the organization. References Ali, M., Khan, S.U. and Vasilakos, A.V., 2015. Security in cloud computing:Opportunitiesandchallenges.Information sciences,305, pp.357-383. Villamizar,M.,Garces,O.,Ochoa,L.,Castro,H.,Salamanca, L., Verano, M., Casallas, R., Gil, S., Valencia, C., Zambrano, A. and Lang,M.,2016,May.Infrastructure costcomparison of running web applications in the cloud using AWS lambda and monolithicandmicroservicearchitectures.In201616th IEEE/ACM InternationalSymposium on Cluster,Cloud and Grid Computing (CCGrid)(pp. 179-182). IEEE.