John travels a lot and he needs to access his documents and services on the go. which of these technologies allows his to access documents and software while on the
move?
cloud computing
grid computing
mobile computing
green computing
virtualization

Cloud computing allow the user to access software or any document from the remote place.

Explanation:

Let us understand what does the word cloud actually means. In simple terms, we get rain from cloud, but we don’t know actually which cloud burst to give rain.

In a similar way, the cloud computing is the concept of storing files in multiple servers and multiple location and it provide access when the client needs the source.

Cloud computing enable user to work on software online or to download document or edit / create documents online. Certain services are free and few other are paid.

i would first let him be aware that a cover letter is official and confidential and it requires a proper formatting so that the employer doesn't have hard time when going through it. he should write it in paragraphs of about two to four sentences and use proper grammar a , spelling and proper punctuation. i will also advice him not to be emotional and not also to use images.then base his attention to the details of the job described and not other things. that is he be specific to the responsibilities and to the employers requirements. on this he should make sure that the letter reflects how good he is for the requirements detailed by the employer

the letter should not be too long nor too short.