Where does the Action Center display its alerts?
A) Notification area
B) Start menu
C) Taskbar
D) Desktop
Answer: A) Notification area
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In the following method, what is the base case?
``` static int xMethod(int n) { if (n == 1) return 1; else return n + xMethod(n - 1); } ``` a. n is 1. b. n is greater than 1. c. n is less than 1. d. no base case.
A file has r=20,000 STUDENT records of fixed-length. Each record has the following fields: NAME (30 bytes), SSN (9 bytes), ADDRESS (40 bytes), PHONE (9 bytes), BIRTHDATE (8 bytes), SEX (1 byte), MAJORDEPTCODE (4 bytes), MINORDEPTCODE (4 bytes), CLASSCODE (4 bytes, integer), and DEGREEPROGRAM (3 bytes). An additional byte is used as a deletion marker. The file is stored on the disk whose parameters are given in Exercise 17.27.
(a) Calculate the record size R in bytes. (b) Calculate the blocking factor bfr and the number of file blocks b assuming an unspanned organization. (c) Calculate the average time it takes to find a record by doing a linear search on the file if (i) the file blocks are stored contiguously and double buffering is used, and (ii) the file blocks are not stored contiguously. (d) Assume the file is ordered by SSN; calculate the time it takes to search for a record given its SSN value by doing a binary search.
The efficiency of the binary tree comes from the fact that each time you look at a node, you either find the item you want, or move down one level in the tree. This cuts the remaining data to be searched in half.
Answer the following statement true (T) or false (F)
Each page in a website usually focuses on multiple categories or topics.
Answer the following statement true (T) or false (F)