Answer the following statements true (T) or false (F)
1) Virtual Machine technologies are also used in desktop environments to run multiple operating systems.
2) A virtual server sees all of the resources of the physical host.
3) Once the virtual machine is created it can be powered on like a physical server and utilized in the manner of a physical server.
4) Virtual machines are made up of files.
5) Type-2 hypervisors are considered to be more secure than the Type-1 hypervisors.
1) T
2) F
3) T
4) T
5) F
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With the frame value ____, a border is drawn on the left and right sides of the table.
A. lrhs B. hsides C. vsides D. both
In an expression-bodied method or read-only property, the symbol ______ introduces the method’s or read-only-property get accessor’s body.
Fill in the blank(s) with the appropriate word(s).
Write a program that reads the CSV file and calculates the average number of positive axillary nodes detected for patients that survived 5 years or longer, and the average number of positive axillary nodes detected for patients that died within 5 years. A significant difference between the two averages suggests whether or not the number of positive axillary nodes detected can be used to predict survival time. Your program should ignore the age and year fields for each record.
The UC Irvine Machine Learning repository contains many datasets for conducting computer science research. One dataset is the Haberman’s Survival dataset, available at http://archive.ics.uci.edu/ml/datasets/Haberman's+Survival and also included online with the source code for the book. The file “haberman.data” contains survival data for breast cancer patients in comma-separated value format. The first field is the patient’s age at the time of surgery, the second field is the year of the surgery, the third field is the number of positive axillary nodes detected, and the fourth field is the survival status. The survival status is 1 if the patient survived 5 years or longer and 2 if the patient died within 5 years. The case study in Listing 10.4 shows how to process a CSV file and makes a good starting point for this project.
You use the ____ command to specify default file and directory permissions, which can have a major impact on a server's security when files are created.
A. ps B. dir C. umask D. mask