HCLTech Interview Questions, Process, and Tips

Q1. Ci cd pipeline and variables?
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Q2. Blue green and canary deployment kubernetes
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Q3. Security in Terraform
Ans. 
Security in Terraform involves managing sensitive data, implementing access controls, and using secure communication channels.
• Use Terraform's sensitive data handling features like sensitive variables and sensitive outputs to protect sensitive information.

• Implement access controls using Terraform's built-in features like IAM policies, resource-level permissions, and secure storage backends.

• Use secure communication chann...read more
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Q4. Helm chart and how to use it?
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Helm is a package manager for Kubernetes that simplifies the deployment and management of applications.
• Helm charts are packages of pre-configured Kubernetes resources that can be easily deployed using Helm.

• Helm charts are written in YAML and can include templates for Kubernetes manifests.

• Helm allows for easy versioning, sharing, and management of Kubernetes applications.

• To use Helm, you need to install the Helm client ...read more
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Q5. Branching strategies
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Q1. Bit shift 1 by 4 position from LSB
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Bit shift 1 by 4 positions from LSB results in 16
• Use the left shift operator (<<) to shift the bits by 4 positions

• 1 << 4 = 16
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Q2. Copy one string to another without using any standard function
Ans. 
Use a loop to copy characters from one string to another
• Create two character arrays to store the strings

• Use a loop to iterate through each character of the source string and copy it to the destination string

• Add a null terminator at the end of the destination string to mark the end of the copied string
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Q3. What's function pointer and what's it's signature
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A function pointer is a variable that stores the address of a function. Its signature includes the return type and parameter types of the function.
• Function pointers allow for dynamic function calls based on the stored address

• Syntax: return_type (*pointer_name)(parameter_types)

• Example: void (*funcPtr)(int) = &someFunction;
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Q4. What's polymorphism
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Polymorphism is the ability of a function to behave differently based on the object it is called with.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (function overloading) and runtime (virtual functions).

• Example: A base class Animal with a virtual function 'makeSound'. Subclasses Dog and Cat override 'makeSound' to bark
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Q5. What's compile time polymorphism
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Compile time polymorphism is achieved through function overloading and templates in C++.
• Compile time polymorphism allows for different functions to be called based on the arguments provided at compile time.

• Function overloading is a form of compile time polymorphism where multiple functions have the same name but different parameters.

• Templates in C++ allow for generic programming and compile time polymorphism by creatin...read more
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Q6. Question about default argument
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Q7. Overload + operator to add two complex numbers
Ans. 
Overload + operator to add two complex numbers in C++.
• Define a class for complex numbers with real and imaginary parts.

• Overload the + operator as a member function of the class.

• Return a new complex number with the sum of real and imaginary parts.
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Q8. Order of constructor and destructor. In case virtual function and about virtual destructor
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Q9. Write stack which can work with any data type. Basically template
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Q10. Write code to delete node from linked list
Ans. 
To delete a node from a linked list, update the pointers of the previous node to skip the node to be deleted.
• Traverse the linked list to find the node to be deleted

• Update the pointers of the previous node to skip the node to be deleted

• Free the memory allocated to the node to be deleted
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Q1. Communication skills. Learning can always be made enjoyable and interesting. 4-letter words can be taught to kids in a fun and playful way as well. They can be involved in various activities which will enh...read more
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Q2. Every day, we come across a lot of words. Check out the below list of words and try to identify how many of them you already know. Also, learn the meanings of the words that are new to you and add them to ...read more
Ans. 
Learning new words is crucial for kids to improve their communication, vocabulary, and language skills. It helps in developing language fluency, reading comprehension, and confidence.
• Developing a strong vocabulary enhances communication skills and the ability to express thoughts effectively.

• Improving vocabulary aids in better reading comprehension of academic and non-academic texts.

• Learning new words boosts confidence ...read more
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A careful study of some social unit (as a corporation or division within a corporation) that attempts to determine what factors led to its success or failure

Q1. AKS DEPOYMENT , security?
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Q2. Dokcer file instructions
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Q3. Vm intergration with self hosted agent?
Ans. 
VM integration with self-hosted agent allows for seamless deployment and management of resources.
• Self-hosted agents can be used to run tasks on virtual machines (VMs) in a cloud environment.

• Integration involves configuring the self-hosted agent to communicate with the VMs for deployment and management.

• This setup enables flexibility and control over the resources being utilized.
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Q1. Devops practices?
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DevOps practices involve collaboration between development and operations teams to automate processes and improve efficiency.
• Continuous integration and continuous deployment (CI/CD)

• Infrastructure as code (IaC)

• Automated testing

• Monitoring and logging

• Collaboration and communication between teams
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Q2. Hcl programs, terraform?
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