A deque (pronounced "deck") is a list-based collection that allows additions and removals to take place at both ends. A deque supports the operations addFront(x), removeFront( ), addRear(x), removeRear( ), size( ), and empty( ). Write a class that implements a deque that stores strings using a doubly linked list that you code yourself.

When you type the pwd command, you notice that your current location on the linux filesystem is the /usr/local directory. answer the following questions, assuming that your current directory is /usr/local for each question. a. which command could you use to change to the /usr directory using an absolute pathname? b. which command could you use to change to the /usr directory using a relative pathname? c. which command could you use to change to the /usr/local/share/info directory using an absolute pathname? d. which command could you use to change to the /usr/local/share/info directory using a relative pathname? e. which command could you use to change to the /etc directory using an absolute pathname? f. which command could you use to change to the /etc directory using a relative pathname?

Which option correctly describes a dbms application? a. software used to manage databases b. software used to organize files and folders c. software used to develop specialized images d. software used to create effective presentations

Visualizing a game of “tag” to remember the meaning of contagious