The name of a linked list is the name of the head pointer that points to the ____ of the list

• First node

• Second node

• Null node

• Last node

The pop operation ____ of the stack

• Deletes an item from the top

• Deletes an item from the bottom

• Inserts an item at the top

• Inserts an item at the bottom

In preorder traversal of a binary tree, the ____.

• Left subtree is processed first

• Right subtree is processed first

• Root is processed first

• The root is never processed

The enqueue operation ____ an item at the ____ of the queue

• Delete front

• Delete/end

• Inserts/front

• Insert/rear

A ____ is a collection of data stored in the internal format of the computer This contains data that is meaningful only its properly interpreted by a program.

• Text file

• Binary file

• Sequential file

• EOF

In the ____ hashing method, there are no synonyms or collisions

• Direct

• Division remainder

• Modulo division

• Digit extraction

A ____ is a collection of related logically coherent data used by the application programs in an organization

• Database

• File

• Directory

• Flat-file

In the relational database model, data is organized in ____ called relations

• Two-dimensional array

• Two-dimensional tables

• Two-dimensional record

• None of others

Each row in a relation is called ____

• An attribute

• A tuple

• A union

• An attitude

If you want to change the value of an attribute of a tuple you use the ____ operation

• Project

• Join

• Update

• Select