Critical Thinking Questions
Case Study 7-2?
?
You are working on a research paper for class. You are finding several websites that will be helpful when you start writing the paper. You decide to use some of the new tools you have learned about in your computer class.
Which of the following tools will you use to highlight the articles?
a. web notes b. tabs c. the Hub d. Reading view
What will be an ideal response?
A?
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The group header section is shown only once at the end of any group detail. _________________________
Answer the following statement true (T) or false (F)
A method int size() in a linked list class returns the number of elements stored in the list by executing the single statement return count; For this to work correctly,
A) count must be a static variable in the class, initialized to 0, incremented by each add method, and decremented by each remove method B) count must be an instance variable in the class, initialized to 0, incremented by each add method, and decremented by each remove method C) count must be a local variable in each add and remove method: the add methods must increment count, and the remove methods must decrement count. D) It is not possible for size to just return the count value: the size method must set count to 0 and then increment count once for each element in the list.
What does the following algorithm do? What is its time complexity?
``` public static int doSomething( int array[], int n ) { int k = 0; // find the largest value in the range array[0] to array[n-1] for ( int i = 1; i < n; i++ ) if ( array[i] > array[k] ) k = i; // postcondition: array[k] is the largest value in array // Swap the largest value with the value in position 0 int temp = array[0]; array[0] = array[k]; array[k] = temp; k = 1; // find the largest value in the range array[1] to array[n-1] for ( int i = 2; i < n; i++ ) if ( array[i] > array[k] ) k = i; // postcondition: array[k] is the SECOND largest value in array return array[k]; } ```
Describe three methods used by HTTP/2 intended to decrease latency and provide for quicker loading of web pages in browsers.
1. Single Constant Connection. 2. Multiplexing. 3. Prioritization. 4. Compression. 5. Server Push. 6. Binary.