If no directory name is included as a parameter with the ls command, the contents of the current directory are listed.
Answer the following statement true (T) or false (F)
True
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The wait-die concurrency control is another control that combines the concepts of the immediate-update concurrency control and the timestamp-ordered control.
If transaction T1 makes a request that conflicts with an operation of active transaction T2 if TS(T1) < TS(T2), then make T1 wait until T2 terminates, else abort T1. where abort T1 is referred to as a die because T1 kills itself. a. Showthat the wait-die control serializes in commit order and prevents deadlocks. b. Compare the fairness of the execution of the kill-wait and wait-die controls.
Answer the following statements true (T) or false (F)
1. The compiler and the run-time system enforces semantics on the Comparable interface. 2. An interface can contain defined constants as well as method headings or instead of method headings. 3. The Serializable interface is like all the other Java interfaces in that it contains defined constants and method headings. 4. An inner class definition is local to the outer class definition. 5. Inner and outer classes do not have access to each other’s private members.
The NPV function is used mostly to calculate return rates for IRAs
Indicate whether the statement is true or false
To rename a printer, select the printer, right-click or tap-hold the printer icon, click or tap Printer properties, type a new name on the General tab, and then click or tap OK.
Answer the following statement true (T) or false (F)