Nokia Networks 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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Q1. What is topology?
Ans. 
Topology is the arrangement of various elements in a network, defining how they are connected and communicate with each other.
• Topology determines the physical or logical layout of a network.

• Common topologies include bus, star, ring, mesh, and hybrid.

• Examples: In a bus topology, all devices are connected to a single cable. In a star topology, all devices are connected to a central hub.

• Topology influences factors like ne...read more
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Q2. Tell about multi node architecture
Ans. 
Multi node architecture refers to a system where multiple nodes work together to perform tasks and share resources.
• Involves multiple nodes connected to a central server or each other

• Allows for distributed computing and load balancing

• Common in cloud computing and big data applications
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All questions asked most of the question are from arithmetic

Coding, maths, English

Q1. Resume based and all questions were related to what one has mentioned in the resume
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