NetApp Interview Questions and Answers for Freshers

Reading from a NULL pointer results in undefined behavior and can cause a segmentation fault.

• Dereferencing a NULL pointer can lead to crashes or unexpected behavior.

• It is important to always check if a pointer is NULL before using it.

• Examples of undefined behavior include accessing memory that doesn't belong to the program or overwriting important data.

• Segmentation faults occur when a program tries to access memory it doesn't have permission to access.

TCP/UDP are transport layer protocols used for communication between devices on a network.

• TCP (Transmission Control Protocol) is a reliable, connection-oriented protocol that ensures data is delivered error-free and in order. It is used for applications that require high reliability such as email, file transfer, and web browsing.

• UDP (User Datagram Protocol) is a connectionless protocol that does not guarantee delivery or order of data. It is used for applications that require...read more

512 MB RAM is a computer memory module that can store and retrieve data quickly.

• 512 MB RAM is a type of computer memory module.

• It can store and retrieve data quickly.

• It is a relatively small amount of memory compared to modern standards.

• It may be suitable for basic computing tasks such as web browsing and word processing.

• It may struggle with more demanding applications such as gaming or video editing.

Phases of compilation include preprocessing, compilation, assembly, and linking.

• Preprocessing: expands macros and includes header files

• Compilation: translates source code to assembly language

• Assembly: translates assembly code to machine code

• Linking: combines object files and libraries into an executable

• Examples: gcc, clang, javac

Yes, I have a few queries.

• Can you provide more information about the company culture?

• What are the opportunities for growth within the company?

• Can you explain the benefits package in more detail?

strstr function searches for the first occurrence of a substring in a given string.

• The function takes two arguments: the main string and the substring to be searched.

• It returns a pointer to the first occurrence of the substring in the main string.

• If the substring is not found, it returns NULL.

• The function is case-sensitive.

• Example: strstr('hello world', 'world') returns 'world'.

CSMA/CD is a protocol used in Ethernet networks to avoid data collisions.

• CSMA/CD stands for Carrier Sense Multiple Access with Collision Detection.

• Before transmitting data, a device listens to the network to check if it's free.

• If the network is busy, the device waits for a random amount of time before trying again.

• If two devices transmit data at the same time, a collision occurs and both devices stop transmitting.

• After a collision, each device waits for a random amount of tim...read more