Cognizant Programmer Analyst Interview Questions, Process, and Tips

Apptitude test was easy to solve.

Q1. Function to find the length of string without inbuilt function
Ans. 
Use a loop to iterate through the characters of the string and count them.
• Create a function that takes a string as input.

• Initialize a counter variable to 0.

• Use a loop to iterate through each character of the string and increment the counter.

• Return the counter as the length of the string.
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Q2. What is Bridge Router
Ans. 
A bridge router is a device that connects two different networks and forwards data between them.
• Bridge routers operate at the data link layer of the OSI model.

• They can connect networks with different protocols or technologies.

• Bridge routers can help in extending network coverage and improving network performance.

• Example: Connecting a wired Ethernet network to a wireless Wi-Fi network.
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Q3. What is hamming code
Ans. 
Hamming code is a type of error-correcting code used in digital communication to detect and correct errors in data transmission.
• Hamming code adds extra bits to data to create parity bits for error detection and correction.

• It is commonly used in computer memory systems and communication networks.

• Example: In a 7-bit Hamming code, 4 data bits are encoded with 3 parity bits to detect and correct errors.
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Q4. Encapsulation in java
Ans. 
Encapsulation is the concept of bundling data and methods that operate on the data into a single unit, preventing direct access to the data from outside the unit.
• Encapsulation in Java is achieved by declaring the class variables as private and providing public getter and setter methods to access and modify the data.

• It helps in data hiding and protects the data from being accessed or modified directly by other classes.

• E...read more
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Q5. Monkey Patch in python
Ans. 
Monkey patching is a technique in Python where you dynamically modify or extend the behavior of a class or module at runtime.
• Monkey patching is often used to fix bugs or add new functionality to existing code without modifying the original source code.

• It involves directly modifying the code of a class or module at runtime, which can be risky and lead to unexpected behavior.

• Monkey patching should be used sparingly and w...read more
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Time and relationship

Q1. Programming :python or java
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Q1. Stick to the fundamental knowledge of the domain for which you're giving the interview.
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Q2. Explain and list linux commands used to on a day-to-day basis.
Ans. 
Common Linux commands used by Programmer Analysts on a daily basis.
• ls - list directory contents

• cd - change directory

• pwd - print working directory

• grep - search for patterns in files

• cat - concatenate and display files

• chmod - change file permissions

• rm - remove files or directories

• mkdir - create directories

• tar - archive files

• ssh - secure shell access
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Q1. Why do you want to work with us?
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Included Reasoning, Aptitude and some general questions

MCQ type questions related to Java, HTML, CSS, JS, Data structure, Algorithm, C

Q1. They asked me about some basic questions related to C, Java Write a code using Data structure Algorithm
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Q1. Asked some behavioural questions and some onboarding related discussion.
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