please answer of all these thanks

QUESTION 40 Slack space is a result of: Non-contiguous files. Unused disk space. The filesystem can only write to clusters, not sectors. The filesystem can only write to sectors, not clusters. Poor security practices. QUESTION 41 To mitigate attacks on your tools or processes, you must (choose all that apply): Take notes during the examination. Document your training. Validate your tools. Attain lots of certifications. Understand your tools' functionality. CRC is: Used in the dd imaging file for data verification purposes. The acronym for 'Checking Redundant Cycles'. Used in the Expert Witness Format for data verification purposes. Contained in a file external to the E01 files. An invention of Guidance Software. The order of volatility of evidence from least to most is: Virtual, Live system, Running, Network, and Physical. Live system, Network, Running, Virtual, and Physical. Physical, Virtual, Network, Running, and Live system. Physical, Virtual, Running, Network, and Live system. Live system, Running, Network, Virtual, and Physical. Some commercial forensic tools include (choose all that apply): FTP. EnCase. SIFT Workstation. X-Ways Forensics. Autopsy. QUESTION 58 Linux is an operating system that has been: Seized by the FBI. Made obsolete by UNIX. Used to create a USB-based live operating system that is forensically sound. Stolen from Apple. Replaced by Windows for forensic purposes. QUESTION 59 The Short Filename (SFN) convention was: Minimum eight character name, with a three character extension. Minimum five character name, with a three character extension. Maximum five character name, with a three character extension. Eliminated with FAT 32. Maximum eight character name, with a three character extension