Answer below two questions:1) Digital Forensics Tools & Tchq: Define several forms of metadata that can be useful to an investigation. How are valuable to an investigator? Post between 250 and 300 words.2) Cloud computing/cloud security: In 500 words or more, compare DNS failover and cloud failover.Overview:This week we will dig into failover and disaster recovery. Failover is the process of shifting I/O and its processes from a primary location to an alternate disaster recovery location.Use at least three sources. Include at least 3 quotes from your sources enclosed in quotation marks and cited in-line by reference to your reference list. Example: words you copied (citation) these quotes should be one full sentence not altered or paraphrased. Cite your sources using APA format. Use the quotes in your paragraphs. Copying without attribution or the use of spinbot or other word substitution software will result in a grade of 0. Write in essay format not in bulleted, numbered or other list format. It is important that you use your own words, that you cite your sources that you comply with the instructions regarding length of your post.