Where does the Total row of an aggregate function display its results?
A. Last row in Datasheet view
B. First row in Datasheet view
C. Only row in Datasheet view
D. It does not display in Datasheet view.
Answer: A
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What is the right code for String remove() operation? Such an operation removes and returns an element from the queue.
A queue based on a linked list uses the following code ``` class Node { String element; Node next; Node (String el, Node n) { element = el; next = n; } } Node front = null, rear = null; ``` A) ``` if (rear== null) throw new RuntimeException("Empty"); String temp = rear.element; rear = rear.next; if (front == null) rear = null; return temp; B) ``` if (front == rear) throw new RuntimeException("Empty"); String temp = front.element; front = front.next; if (front == null) rear = null; return temp; C) ``` if (front == null) throw new RuntimeException("Empty"); String temp = front.element; front = front.next; if (front == null) front = rear; return temp; ``` D) ``` if (front == null) throw new RuntimeException("Empty"); String temp = front.element; front = front.next; if (front == null) rear = null; return temp; ```
How would you mount an ISO image so you could copy files from it without burning it to a CD?
$ mount -t -o loop image.iso /mnt/image
When a new row is inserted into a named range, Excel adjusts formulas accordingly
Indicate whether the statement is true or false
COGNITIVE ASSESSMENT In your school's database, in which of the following is all of the information about a particular student stored?
A. a field B. a character C. a record D. a report