What is the difference between cache and persist in spark?

352

Whats the difference between select() and poll()?

1714

I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

1996

What is astm?

1

What is ‘good code’? What is ‘good design’?

1031

What is a guard in angular?

841

What are the types of calculation view?

93

what should I refer for examination of BSNL-TTA. Please suggest me good reference...so that I can clear this exam.

2028

What are the package used in DBMS ?

2676

What arethe advantages and disadvantages of high wing loading?

1444

What is the difference between the functions memmove() and memcpy()?

1172

how to test use the quality control .how to verify the image verification

3149

Your project sponsor has requested a cost estimate for the project you're working on. This project is similar in scope to a project you worked on last year. She would like to get the cost estimates as soon as possible. Accuracy is not her primary concern right now. She needs a ball park figure by tomorrow. You decide to use: A. Analogous estimating techniques B. Bottom-up estimating techniques C. Parametric modeling techniques D. Computerized modeling techniques

1089

I want to give rebate to the customers only those have achieved the target (say 1000 qnt. or more/ Rs. 50,000 in price) of a material in the respective period, how to configure this? (other customers who have not reached the target will not get the rebate

1844

How much ram do I need for mongodb?

1