Phantom Healthcare Interview Questions and Answers

Encapsulation, data abstraction, and polymorphism are three fundamental concepts in object-oriented programming.

• Encapsulation is the process of hiding the implementation details of an object from the outside world.

• Data abstraction is the process of representing only the essential features of an object and hiding the unnecessary details.

• Polymorphism is the ability of an object to take on many forms or have multiple beha...read more

Stack is a data structure that follows Last In First Out (LIFO) principle. Queue is a data structure that follows First In First Out (FIFO) principle.

• Stack is like a stack of plates where the last plate added is the first one to be removed

• Queue is like a queue of people waiting in line where the first person added is the first one to be served

• Stack operations: push (add element), pop (remove top element), peek (get top...read more

Caching is the process of storing frequently used data in a temporary storage area for faster access.

• Caching improves application performance by reducing the number of requests to the server.

• It can be implemented at different levels such as browser, server, and database.

• Examples of caching include browser caching of web pages, server caching of API responses, and database caching of query results.

Join types used in SQL to combine data from multiple tables.

• Inner join returns only the matching rows from both tables.

• Left join returns all rows from the left table and matching rows from the right table.

• Outer join returns all rows from both tables, with null values for non-matching rows.

• Examples: SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

• SELECT * FROM table1 LEFT JOIN table2 ON table1.id = table2...read more

First we want connect with putty server after that we want to connect with Ip address of Asap and US server.And type the commands.

To print the vol show commands, use the appropriate command-line interface (CLI) or management software.

• Use the CLI of the storage system to execute the 'vol show' command.

• The specific syntax may vary depending on the storage system being used.

• Alternatively, use management software provided by the storage vendor to access and print the vol show commands.

• Ensure you have the necessary permissions and access rights to exe

The disk show commands are used to display information about disks in a data center.

• Use the 'disk show' command followed by specific options to retrieve disk information

• Common options include 'disk show -v' for verbose output and 'disk show -a' for all disks

• Examples: 'disk show -v' to display detailed disk information, 'disk show -a' to show all disks