L&T Technology Services Asic Design Verification Engineer Interview Questions and Answers

Q1. What are storage class
Ans. 
Storage classes in C specify the scope and lifetime of variables.
• Storage classes include auto, register, static, and extern.

• Auto variables are local to a block and have automatic storage duration.

• Register variables are stored in CPU registers for faster access.

• Static variables retain their value between function calls.

• Extern variables are declared in one file and can be used in another file.
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Q2. Explain structure program
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A structure program is a program that uses structures to group related data together.
• Structures in C programming allow you to group related data together under one name.

• You can define a structure using the 'struct' keyword.

• Structures can contain different data types, including int, float, char, and even other structures.

• You can access the members of a structure using the dot operator.

• Example: struct employee { int id; ...read more
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Q1. Network theory (R, L, C, filter, circuit behavior), analog electronics (Opamp, BJT), Oscilloscope (how to use to measure parameters),
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Q1. Current ctc, expected ctc. Also, about career path journey. why you left your last job or previous job?
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Q1. Three people will take the interview, one by one. They also ask some basic circuit questions and experience. Prepare your resume well. They will pick some keywords from your resume and frame questions abou...read more
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Basic c datastructucture networking l2 l3 questions

Q1. Question on projects.
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Q2. How packet goes from source to destination.
Ans. 
Packets are sent from source to destination through a series of network devices using routing protocols.
• Packet is created at the source with source and destination IP addresses.

• Packet is sent to the default gateway or router.

• Router checks its routing table to determine the next hop for the packet.

• Packet is forwarded to the next hop until it reaches the destination.

• Destination receives the packet and sends an acknowledg
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Q3. Delete a node from single linked list.
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To delete a node from a single linked list, we need to find the node and update the pointers.
• Traverse the list to find the node to be deleted

• Update the previous node's pointer to point to the next node

• Free the memory of the node to be deleted
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Q4. Dynamic memory alocation in c
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Dynamic memory allocation in C allows allocation of memory at runtime.
• Dynamic memory allocation is done using functions like malloc(), calloc(), realloc() and free().

• malloc() allocates memory block of specified size and returns a pointer to the first byte of allocated memory.

• calloc() allocates memory block of specified size and initializes all bits to zero.

• realloc() changes the size of previously allocated memory block...read more
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Q5. Interprocess communication in OS
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Interprocess communication is a mechanism that allows processes to communicate with each other in an OS.
• IPC mechanisms include pipes, sockets, message queues, shared memory, and signals.

• IPC can be used for synchronization, data sharing, and coordination between processes.

• IPC can be implemented using system calls such as fork(), pipe(), socket(), and msgget().
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Q1. Program to reverse an array
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Program to reverse an array of strings
• Create a function that takes an array of strings as input

• Use a loop to iterate through the array and swap elements from start to end

• Return the reversed array
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Q2. Program to count the number of words in a string
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Program to count the number of words in a string using array of strings.
• Split the string into an array of strings using a delimiter like space.

• Iterate through the array and count the number of elements.

• Handle edge cases like multiple spaces between words.
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Q1. What is polymorphism
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Q2. What is inheritance
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Q1. Discussion about salary and bond
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Q1. Write a code by using recursive function. Basic embedded C questions
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Coding related to c programming it includes 10 coding questions

Basic math and problem solving

Language used is c, topics including strings, arrays, sorting and functions