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- Question
What are the security laws which take care of the data in the cloud?
- Correct Answer
- The security laws which are implements to secure data in the cloud are as follows: - Input validation : controls the input data which is being to any system - Processing : control that the data is being processed correctly and completely in an application - File : control the data being manipulated in any type of file - Output reconciliation : control the data that has to be reconciled from input to output - Backup and recovery: control the security breaches logs and the problems which has occurred while creating the back
- 1. What is ARC ? Discuss
- 2. What is Automatic Reference Counting (ARC) ? Discuss
- 3. What are the tools required to develop iOS applications? Discuss
- 4. Give example scenarios when an application goes into InActive state? Discuss
- 5. What is Cocoa and cocoa touch? Discuss
- 6. How does fault tolerance work in mapreduce? Discuss
- 7. Write a SQL Query to find year from date. Discuss
- 8. Write SQL Query to find second highest salary of Employee. Discuss
- 9. A UNION query is which of the following?
Options- A. Combines the output from multiple queries and does not include the same number of columns.
- B. Combines the output from multiple queries and must include the same number of columns.
- C. Combines the output from no more than two queries and does not include the same number of columns.
- D. Combines the output from no more than two queries and must include the same number of columns. Discuss
- 10. What is ALV programming in ABAP? When is this grid used in ABAP? Discuss
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Correct Answer: ARC is a compiler-level feature that simplifies the process of managing the lifetimes of Objective-C objects Instead of you having to remember when to retain or release an object, ARC evaluates the lifetime requirements of your objects and automatically inserts the appropriate method calls at compile time
Correct Answer: ARC is a compiler-level feature that simplifies the process of managing the lifetimes of Objective-C objects Instead of you having to remember when to retain or release an object, ARC evaluates the lifetime requirements of your objects and automatically inserts the appropriate method calls at compile time
Correct Answer: IOS development requires Intel-based Macintosh computer and iOS SDK
Correct Answer: An app can get into InActive state when the user locks the screen or the system prompts the user to respond to some event eg SMS message, incoming call etc
Correct Answer: Cocoa is for Mac App development and cocoa touch is for apples touch devices - that provide all development environment
Correct Answer: In a mapreduce job the master pings each worker periodically In case a worker does not respond to that system then the system is marked as failed Even completed tasks are rescheduled because the output was stored in a in a local disk of a worker which failed Hence mapreduce is able to handle large-scale failures easily by simply restarting a task The master node always saves itself at checkpoints and in case of any failure it simply restarts from that checkpoint
Correct Answer: SELECT YEAR(GETDATE()) as "Year";
Correct Answer: There are many ways to find second highest salary of Employee in SQL, you can either use SQL Join or Subquery to solve this problem Here is SQL query using Subquery : SELECT MAX(Salary) from Employee WHERE Salary NOT IN (select MAX(Salary) FROM Employee );
Correct Answer: Combines the output from multiple queries and must include the same number of columns.
Explanation:
A UNION query combines the output from multiple queries and must include the same number of columns.
Correct Answer: ALV is Application List viewer Sap provides a set of ALV (ABAP LIST VIEWER) function modules which can be put into use to embellish the output of a report This set of ALV functions is used to enhance the readability and functionality of any report output Cases arise in sap when the output of a report contains columns extending more than 255 characters in length In such cases, this set of ALV functions can help choose selected columns and arrange the different columns from a report output and also save different variants for report display This is a very efficient tool for dynamically sorting and arranging the columns from a report output The report output can contain up to 90 columns in the display with the wide array of display options
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