Anetwork technician has configured a point-to-point interface on a router. once the fiber optic cables have been run, though, the interface will not come up. the technician has cleaned the fiber connectors and used an optical power meter to confirm that light is passing in both directions without excessive loss. what is the most likely cause of this issue?
a. distance limitationb. wavelength mismatchc. cross-talkd. emie. macro bend

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1. a 2. d3. a4. c5. c6. a7. c8. a9. b

Public static int mystery(int a[], int x) {     int c = 0;     for(int i = 0; i < a.length; i++) {        if (a[i] == x) c++;     } return c; }the method counts how many times an integer shows up in an integer array.the c variable is declared in the method to keep track of how many times the certain value has shown up.the for-loop loops through the entire array.the line    if (a[i] == x) c++;   checks if each element of the array is equal to the inputted integer to check. for each number in the array that is equal to the inputted integer x, the c variable will be incremented by 1. otherwise it will do nothing.then c is returned at the end of the loop.for example, if we have, in the main method with the mystery method coded in the class:     int arraytest[] = {2, 23, 23, 23, 3};     int testme = 23;     int count = mystery(arraytest, testme);     system.out.println(count); then the print out will be    3 because there are three 23s in that array.