Nokia Networks Software Engineer Interview Questions, Process, and Tips

Q1. Reverse a linked list
Ans. 
Reverse a linked list by changing the next pointers of each node
• Initialize three pointers: prev = null, current = head, next = null

• Iterate through the linked list, updating next to current's next, current's next to prev, and moving prev and current pointers forward

• Return the new head, which is the last node visited
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Q2. Find a bit is set
Ans. 
To find if a bit is set, use bitwise AND operator with the bit position
• Use bitwise AND operator (&) with the bit position to check if it is set

• If the result is greater than 0, then the bit is set

• Example: Check if 3rd bit is set in binary number 1010 - (1010 & 0100) = 0100 (4), so 3rd bit is set
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Q3. Create a thread in process
Ans. 
Creating a thread in a process involves allocating resources for a new thread to run concurrently with other threads.
• Use threading libraries like pthreads in C or java.util.concurrent in Java

• Create a new thread object and pass a function or method to be executed by the thread

• Start the thread to begin execution

• Join the thread to wait for it to finish before continuing
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Difficult as I was not having knowledge about the programming languages

Coding test was quite difficult as I said earlier

Q1. Write a pointers program and tell the diff between references and pointers.
Ans. 
Pointers program and differences between references and pointers
• Pointers are variables that store memory addresses

• References are aliases for existing variables

• Pointers can be reassigned to point to different memory locations

• References cannot be reassigned to refer to a different variable

• Pointers require dereferencing to access the value they point to

• References automatically dereference when accessed
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Q2. What is shell scripting?
Ans. 
Shell scripting is a way to automate tasks by writing scripts in a shell language like Bash.
• Shell scripting allows for automating repetitive tasks in a Unix/Linux environment.

• Scripts can be written to execute commands, perform system administration tasks, and more.

• Examples include writing a script to backup files, automate software installations, or monitor system resources.
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Q3. Write a python code to reverse a string.
Ans. 
Python code to reverse a string
• Use slicing to reverse the string

• Example: input_string = 'hello', reversed_string = input_string[::-1]
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Q1. What is your salary expectation?
Ans. 
My salary expectation is based on my experience, skills, and the market rate for Software Engineers.
• Research the average salary for Software Engineers in your location and level of experience.

• Consider your skills, qualifications, and any additional value you bring to the role.

• Be prepared to negotiate based on the company's budget and benefits package.
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Basic question of english and aptitude and 2 code

Q1. String reverse calloc malloc data base
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Q2. About tcp ip model and
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