Answer:
A.O(1)
Explanation:
In the implementation of queue by using linked chain the performance of the enqueue operation is O(1).We have to maintain two pointers one head and the other tailand for enqueue operation we have to insert element to the next of the tail and then make that element tail.Which takes O(1) time.
Answer:
Ally typed a business letters she most likely used a <u>Word Processor</u>.
Explanation:
Word processors are the tools that are used to process the text in terms of formatting, printing and editing the text document. These programs or software are used to write the text document with ease.
Microsoft word and word perfect are the examples of the word processors.
We can write the text on note pad as well, but we cannot apply different fonts style, size and formatting techniques on that application. Word processors provide a lot of fonts styles and formatting options to make the document appealing.
Answer:
D) use SQL or graphical tools to query the database
Explanation:
To query the database using SQL or graphical tools will help Howie to retrieve bulk of records from the database according to his requirements and it will help to understand and work with the data in a better way than using the data in raw form.
SQL is a language of database used to manipulate and manage the data in the relational database and to query the database.
It is an easy and faster way to query using SQL or graphical tools because no coding is required here.
Different graphical tools are used to present the data in the database in a way that can be easily understood by a person. Different interfaces are provided to visualize the database tables or schema diagrammatically e.g in the form of graphs etc. Different views of the database can be provided to different users according to their requirement and what information they required to be presented.
Answer:
input() prompts the user to enter information
