ITM 700 Study Guide - High Availability, Internet Backbone, Strong Authentication
19 Nov 2012
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Chapter 6 assuring reliably and secure it services. Overall service availability is generally lower than the availability of individual components: true, false. Service availability increases as components are added in series: true, false. If you have 5 components in parallel each at 98% availability what is its probability of failure: 0. 0000000032, 0. 92236816, 0. 0000839, 0. 9238192. High availability facilities does not include: n+1 and n+n redundancy, uninterrupitble electric power delivery, help desk and incident response procedures, ids, network connectivity. Network connectivity external connection to internet backbone providers are redundant and involve at least 2 backbone providers, and enter the building through separate points. N+1 is each critical component has at least one unit on stand by. Which is not an example of external attack: distributed dos, spoofing, dos, sniffer. External attacks, intrusion, viruses & worms, are: classification of threats, attacks, spoofing, information packets. Obtaining u/n and pws and using sniffers is what type threat: external attack, intrusion, virus & worm.
