10+ Cognizant Programmer Analyst 1 Interview Questions and Answers

Cache is a temporary storage area that stores frequently accessed data for quick access.

• Cache is used to improve the performance of a system by reducing the time it takes to access data.

• It can be implemented in hardware or software.

• Examples of cache include browser cache, CPU cache, and disk cache.

• Cache can be volatile or non-volatile.

• Cache can be configured to have a certain size and replacement policy.

Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.

• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can access the properties and methods of the base class

• Example: Class 'Animal' can be a base class with attributes like 'name' and methods like 'eat', and class 'Dog' can inher...read more

Common ports and OSI model are important networking concepts.

• Common ports include HTTP (80), HTTPS (443), FTP (21), SSH (22), and Telnet (23).

• OSI model has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Each layer has a specific function and communicates with adjacent layers.

• Understanding these concepts is important for network troubleshooting and security.

Dennis Ritchie is considered the father of the C programming language.

• Dennis Ritchie, along with Brian Kernighan, developed the C language at Bell Labs in the early 1970s.

• C language was created to provide a more flexible and powerful alternative to assembly language.

• C language has had a significant impact on modern programming languages and systems development.

C is a procedural programming language, while C++ is an object-oriented programming language that is an extension of C.

• C is a procedural programming language, focusing on functions and procedures.

• C++ is an object-oriented programming language, allowing for the use of classes and objects.

• C++ is an extension of C, adding features like classes, inheritance, and polymorphism.

Program in C to sort an array of strings alphabetically

• Declare an array of strings

• Use a sorting algorithm like bubble sort or quicksort to sort the strings alphabetically

• Print the sorted array of strings

Cyber kill chain stages are the steps followed by attackers to carry out a successful cyber attack.

• The stages include reconnaissance, weaponization, delivery, exploitation, installation, command and control, and actions on objectives.

• Reconnaissance involves gathering information about the target.

• Weaponization involves creating a payload to exploit the target.

• Delivery involves delivering the payload to the target.

• Exploitation involves executing the payload on the target.

• Instal...read more

QRadar is a security information and event management (SIEM) system that collects and analyzes security log data.

• QRadar uses a distributed architecture with a centralized console and multiple components for data collection, processing, and storage.

• The system includes event processors, flow processors, and data nodes that work together to collect and analyze security data.

• QRadar supports a wide range of data sources, including network devices, servers, applications, and cloud ...read more

OWASP Top 10 is a list of the most critical web application security risks.

• OWASP Top 10 is updated every few years based on community feedback and industry trends.

• The list includes risks such as injection attacks, broken authentication and session management, and cross-site scripting (XSS).

• Developers can use the OWASP Top 10 as a guide to prioritize security measures in their applications.

• OWASP also provides resources and tools to help developers address these risks.

• Complianc...read more