Describe how a non-recoverable situation could arise if write locks are released after the last
operation of a transaction but before its commitment.
What will be an ideal response?
An earlier transaction may release its locks but not commit, meanwhile a later transaction uses the objects and
commits. Then the earlier transaction may abort. The later transaction has done a dirty read and cannot be
recovered because it has already committed.
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________ is s method reference for a static method of a class. It creates a one- parameter lambda in which the lambda’s argument is passed to the specified a static method and the lambda returns the method’s result.
a. Math::sqrt b. System.out::println c. TreeMap::new d. String::toUpperCase
Case-Based Critical Thinking QuestionsCase 1The YumYum store sells ice cream. Single-scoops cost $2.00, double-scoops cost $2.80, and triple-scoops cost $3.50.No matter how many scoops a customer chooses, when a customer also decides that they want the ice cream served in a cone, there is an additonal 50 cent charge. In order to correctly charge for the ice cream served in a cone, you would use a(n) ____.
A. OR B. AND C. NOT D. > operand
Put the following equations into the slop-intercept form (y = + b) and read the value of the slope and y-intercept.
y = 2x + 1 Already in standard form Slope = +2
You work for a chain of small medical clinics. Your company has decided to explore the virtualization of its servers. Which of the following is not benefit of virtualization?
A. reduced cost B reduced physical footprint C reduced power usage D reduced security issues