Ensim Corporation Interview Questions and Answers

What are the key principal you follow for telerehabilitation

Introduce your self ?

What all techniques and methode do you folow

Q1. What are your hobbies ?
Ans. 
My hobbies include hiking, playing tennis, and cooking new recipes.
• Hiking in local trails and national parks

• Playing tennis at the community courts

• Experimenting with new recipes in the kitchen
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Q2. Tell your work experience
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Q1. How do you handle the cases where patietn is not responding properly
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Q2. Please explain how do you treate a patient with chronic case ?
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Q1. How do you builde rappo with new patient
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Q2. What is your overall expericne c
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Q1. What do you know about our company
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Q1. What is your take on patietn ?
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It took total 6 days for interview and revert

Q1. Explain any 1 of your Project.
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Q2. SQL: Explain difference between Delete, Truncate and Drop. Difference between Group by and Having. Asked to write a update query.
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Q3. Python: Difference between Set and Dictionary. Can we update key in dictionary? Write solution for given python question (nums = [1,2,3,4,5,7,10] target = 9 output = [1,5])
Ans. 
Set is a collection of unique elements, while dictionary is a collection of key-value pairs. Keys in dictionary can be updated.
• Set does not allow duplicate elements, while dictionary allows duplicate values but not duplicate keys.

• Dictionary uses key-value pairs for storing data, while set only stores individual elements.

• Example: Set - {1, 2, 3}, Dictionary - {'a': 1, 'b': 2}

• Yes, keys in dictionary can be updated by ass
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Q1. Explain projects where you have implemented ETL. Difference between aws lambda and aws glue
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Q2. Non-Technical questions
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Q1. How many EBS can be attached to single EC2
Ans. 
The maximum number of EBS volumes that can be attached to a single EC2 instance is 40.
• Maximum of 40 EBS volumes can be attached to a single EC2 instance

• Each EBS volume can be up to 16 TiB in size

• EBS volumes can be attached and detached while the instance is running
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Q2. Prerequisites for S3 Cross Region Replication
Ans. 
Prerequisites for S3 Cross Region Replication include enabling versioning, configuring IAM roles, and ensuring proper bucket policies.
• Enable versioning on both source and destination buckets

• Configure IAM roles with proper permissions for replication

• Ensure proper bucket policies are in place for cross region replication
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Q3. Docker Restart will change which attributes of comtainer
Ans. 
Docker Restart changes the container's attributes like IP address, hostname, and uptime.
• IP address of the container will change after restart

• Hostname of the container may change

• Uptime of the container will be reset

• Any changes made to the container's filesystem will be lost
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Q4. S3 vs EFS scenario based use cases.
Ans. 
S3 is ideal for storing static files like images and videos, while EFS is better for shared file storage among multiple EC2 instances.
• S3 is object storage, suitable for storing large amounts of unstructured data like images, videos, backups, and logs.

• EFS is a file storage service that can be mounted on multiple EC2 instances, making it ideal for shared file systems and databases.

• Use S3 for static website hosting, data ...read more
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Q5. Linux Commands and Chmod Calculation
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It was conducted in hacker earth
Around 1:55hr

Q1. Write a code for encrypting and decryption of character
Ans. 
Code for encrypting and decrypting characters using a simple algorithm
• Use a simple algorithm like shifting the characters by a fixed number of positions in the ASCII table

• For encryption, add the fixed number to the ASCII value of each character

• For decryption, subtract the fixed number from the ASCII value of each character
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Q2. Given a python code find the bugs
Ans. 
Identify bugs in a given Python code
• Check for syntax errors such as missing colons or parentheses

• Look for logical errors in the code that may cause unexpected behavior

• Test edge cases and boundary conditions to ensure code handles all scenarios

• Use debugging tools like print statements or a debugger to trace the flow of the code
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Q1. How does a cell communicates between 2 sites.
Ans. 
Cells communicate between 2 sites through various signaling pathways, including direct cell-to-cell contact and chemical signaling.
• Cells can communicate through direct cell-to-cell contact, such as gap junctions or cell adhesion molecules.

• Cells can also communicate through chemical signaling, such as paracrine signaling (local signaling) or endocrine signaling (long-distance signaling).

• Examples include neurotransmitter...read more
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Q2. L3 layer details
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Q1. DSA problem to find the count of characters in a string
Ans. 
Use a hashmap to count the occurrences of each character in the string.
• Create a hashmap to store character counts

• Iterate through the string and update counts in the hashmap

• Return the hashmap with character counts
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Q2. VOiP related questions
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Mintu Babu lives in a smaller house than her brother and in a larger house than her parents. Her children reside with her, and she has no other relatives. If Mintu Babu's relative U lives in a larger house than her relative S, then all the following may be true except: \n\n1) S is U's father \n\n2) S is U's mother \n\n3) U is younger than S \n\n4) S is younger than U

Q1. 1. merge two linked list
Ans. 
Merge two sorted linked lists without creating new nodes by rearranging existing nodes.
• Traverse both linked lists simultaneously

• Compare the values of nodes and rearrange pointers accordingly

• Continue until one of the lists is fully traversed
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Q2. 2. reverse a linked list.
Ans. 
Reverse a linked list by changing the direction of pointers.
• Start with three pointers: current, previous, and next.

• Iterate through the linked list, updating pointers to reverse the direction.

• Update the head of the linked list to be the previous node once iteration is complete.
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It included mcqs and multiple coding questions.

Q1. Yours technical skillls related questions
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Q2. Managerial questions
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OOPS , DBMS , OS , and DSA concepts

Q1. DBMS related concepts
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Q2. Networking and Network Security
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