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Title: GitHub - sachuverma/DataStructures-Algorithms: This repo contains links of resources, theory subjects content and DSA questions & their solution for interview preparation from different websites like geeksforgeeks, leetcode, etc.

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X Title: GitHub - sachuverma/DataStructures-Algorithms: This repo contains links of resources, theory subjects content and DSA questions & their solution for interview preparation from different websites like geeksforgeeks, leetcode, etc.

Description: This repo contains links of resources, theory subjects content and DSA questions & their solution for interview preparation from different websites like geeksforgeeks, leetcode, etc. - sachuverma/DataStructures-Algorithms

Open Graph Description: This repo contains links of resources, theory subjects content and DSA questions & their solution for interview preparation from different websites like geeksforgeeks, leetcode, etc. - sachuver...

X Description: This repo contains links of resources, theory subjects content and DSA questions & their solution for interview preparation from different websites like geeksforgeeks, leetcode, etc. - sach...

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Quick Notes to Followhttps://mega.nz/file/pEpRUIQQ#ArZTGmmvMpygGuoOL6rokFesY7IJVTDJCPUQ_VsLR4U
What is an Operating Systemhttps://www.scaler.com/topics/operating-system/what-is-operating-system/
Features of Operating Systemhttps://www.interviewbit.com/blog/features-of-operating-system/
Types of Oshttps://www.geeksforgeeks.org/types-of-operating-systems/
RAM vs ROMhttps://www.guru99.com/difference-between-rom-ram.html
SRAM & DRAMhttps://www.guru99.com/sram-vs-dram-difference.html
PROM, EPROM & EEROMhttps://pediaa.com/what-is-the-difference-between-prom-eprom-and-eeprom/
Virtualisation vs Containerisationhttps://www.tutorialspoint.com/difference-between-virtualization-and-containerization
BIOS vs UEFIhttps://www.howtogeek.com/56958/htg-explains-how-uefi-will-replace-the-bios/
MBR vs GPThttps://www.howtogeek.com/193669/whats-the-difference-between-gpt-and-mbr-when-partitioning-a-drive/
Bootinghttps://www.scaler.com/topics/operating-system/what-is-booting/
Multi-programming, Multi-processing, Multi-tasking & Multi-threadinghttps://www.geeksforgeeks.org/difference-between-multitasking-multithreading-and-multiprocessing/
Monolothic architecture vs MicroKernel archhttps://stackoverflow.com/questions/4537850/what-is-difference-between-monolithic-and-micro-kernel
Why Windows kernel is more monolithic & not microkernel?https://micksmix.wordpress.com/2011/02/20/does-windows-have-a-microkernel-or-monolithic-kernel/
What happens when we turn on our computer?https://www.geeksforgeeks.org/what-happens-when-we-turn-on-computer/
Process vs Programhttps://www.geeksforgeeks.org/difference-between-program-and-process/
Different State of processhttps://www.geeksforgeeks.org/states-of-a-process-in-operating-systems/
PCB structure in detailhttps://www.geeksforgeeks.org/process-table-and-process-control-block-pcb/
How does a process look like in memory?https://www.tutorialspoint.com/how-does-a-process-look-like-in-memory
Process vs Threadshttps://www.geeksforgeeks.org/difference-between-process-and-thread/
Introductionhttps://www.tutorialspoint.com/operating_system/os_process_scheduling.htm
Inter Process Communication (IPS) in OShttps://www.scaler.com/topics/operating-system/inter-process-communication-in-os/
CPU Bound Process vs I/O Bound Processhttps://stackoverflow.com/questions/868568/what-do-the-terms-cpu-bound-and-i-o-bound-mean
What is Context Switch?https://www.tutorialspoint.com/what-is-context-switching-in-operating-system
Introductionhttps://www.geeksforgeeks.org/inter-process-communication-ipc/
Define Pipehttps://www.tutorialspoint.com/inter_process_communication/inter_process_communication_pipes.htm
Maximum number of Zombie process a system can handle?https://www.geeksforgeeks.org/maximum-number-zombie-process-system-can-handle/
What is a Thread?https://www.studytonight.com/operating-system/multithreading
Benefits of Multi-threading?https://www.geeksforgeeks.org/benefits-of-multithreading-in-operating-system/
Example of Multi-threadinghttps://www.quora.com/What-are-some-best-examples-of-multithreaded-applications
Modelshttps://www.studytonight.com/operating-system/multithreading
Optimal number of threads required for a process?https://stackoverflow.com/questions/1718465/optimal-number-of-threads-per-core
Effect of Multiple cores on Multi-threadinghttps://blogs.grammatech.com/multi-core-processors-headache-for-multithreaded-code
Why C++ static variables are dangerous in real life OS?https://stackoverflow.com/questions/7026507/why-are-static-variables-considered-evil
Why Process Coordinatin/Sync is needed?https://www.studytonight.com/operating-system/process-synchronization
Physical Address Space vs Logical Address Spacehttps://www.geeksforgeeks.org/logical-and-physical-address-in-operating-system/
Mutual Exclusionhttps://www.geeksforgeeks.org/mutual-exclusion-in-synchronization/
Critical Sectionhttps://www.geeksforgeeks.org/g-fact-70/
Follow youtube video (knowledge gate)https://www.youtube.com/watch?v=YwqexcfbucE&list=PLmXKhU9FNesSFvj6gASuWmQd23Ul5omtD
How to implement Binary Semaphore in real world codinghttps://www.geeksforgeeks.org/semaphores-in-process-synchronization/
Follow youtube video (knowledge gate)https://www.youtube.com/watch?v=YwqexcfbucE&list=PLmXKhU9FNesSFvj6gASuWmQd23Ul5omtD
What is Deadlock?https://www.cs.rpi.edu/academics/courses/fall04/os/c10/
Effects of Deadlock?https://stackoverflow.com/questions/41204406/what-is-effect-of-deadlock-on-other-processes-which-are-not-involve-in-deadlock/41713812
Methods for Deadlock handlinghttps://www.scaler.com/topics/dbms/deadlock-in-dbms/
Context Switchhttps://www.scaler.com/topics/operating-system/context-switching-in-os/
Follow youtube videoshttps://www.youtube.com/watch?v=YwqexcfbucE&list=PLmXKhU9FNesSFvj6gASuWmQd23Ul5omtD
Why paging increases the context-switch time?https://gateoverflow.in/178062/paging-os-galvin-book-page-no-332
Page vs Frame?https://practice.geeksforgeeks.org/problems/page-and-frames
What is TLB miss?https://stackoverflow.com/questions/37825859/cache-miss-a-tlb-miss-and-page-fault
Virtual Memoryhttps://www.tutorialspoint.com/operating_system/os_virtual_memory.htm
Demand Paginghttps://www.youtube.com/watch?v=Agi0u5Png_U
Pure Demand Paginghttps://practice.geeksforgeeks.org/problems/what-is-pure-demand-paging
Most Asked Questions (Thrashing)https://practice.geeksforgeeks.org/problems/thrashing-in-os
Resource 1https://www.slideshare.net/DeepikaT13/storage-management-in-operating-system
Resource 2https://www.slideshare.net/arjunk007/secondary-storage-structureoperating-system-concepts
For College Examshttps://www.os-book.com/OS9/slide-dir/index.html
https://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms#2️⃣-database-management--design
SQL vs NoSQLhttps://www.interviewbit.com/blog/sql-vs-mysql/
System Design Primer (Database Section)https://github.com/donnemartin/system-design-primer#database
What is Database?https://www.javatpoint.com/what-is-database
What is DBMS?https://www.guru99.com/what-is-dbms.html
Why do we need DBMS?https://www.geeksforgeeks.org/need-for-dbms/
File management system vs DBMShttps://www.javatpoint.com/dbms-vs-files-system
What is Database Admin & it's functions?https://practice.geeksforgeeks.org/problems/what-are-the-functions-of-a-dba
Database Tier-2/Tier-3 Architecturehttps://www.geeksforgeeks.org/difference-between-two-tier-and-three-tier-database-architecture/
Database Languagehttps://www.geeksforgeeks.org/sql-ddl-dql-dml-dcl-tcl-commands/
Important Termshttps://whatisdbms.com/instances-schema-and-sub-schema-in-dbms-with-examples/
What is Data abstraction in DBMS?https://afteracademy.com/blog/what-is-data-abstraction-in-dbms-and-what-are-its-three-levels
3 level of Data Abstractionhttps://afteracademy.com/blog/what-is-data-abstraction-in-dbms-and-what-are-its-three-levels
What is Referectial Integrityhttps://www.tutorialspoint.com/Referential-Integrity-Rule-in-RDBMS
What is RDBMS & how it is stored in memory?https://www.quora.com/How-does-a-relational-DBMS-internally-store-its-data-In-what-type-of-data-structure-How-does-it-offer-the-rapid-retrieval-without-loading-the-entire-database-into-the-main-memory-I-have-heard-many-DBMS-use-B-trees
Degree of Relationhttps://www.relationaldbdesign.com/database-design/module6/three-relationship-types.php
Keyshttps://www.geeksforgeeks.org/types-of-keys-in-relational-model-candidate-super-primary-alternate-and-foreign/
Super Keyhttps://www.scaler.com/topics/super-key-in-dbms/
Databse Schemahttps://www.tutorialspoint.com/dbms/dbms_data_schemas.htm
Schema Diagramshttps://www.geeksforgeeks.org/mapping-from-er-model-to-relational-model/
Relational Modelhttps://www.scaler.com/topics/dbms/relational-model-in-dbms/
Relational Operationshttps://www.guru99.com/relational-algebra-dbms.html
What is SQLhttps://www.w3schools.com/sql/sql_intro.asp
SQL vs MySQLhttps://www.upgrad.com/blog/sql-vs-mysql/
Important Keywordshttps://www.educba.com/sql-keywords/
CheatSheet: SQLhttps://www.educba.com/cheat-sheet-sql/?source=leftnav
Composite key in SQLhttps://www.educba.com/composite-key-in-sql/?source=leftnav
Join & it's typeshttps://www.geeksforgeeks.org/sql-join-set-1-inner-left-right-and-full-joins/
What is Viewhttps://www.geeksforgeeks.org/sql-views/
Updating a Viewhttps://www.scaler.com/topics/sql/views-in-sql/
What is triggerhttps://www.geeksforgeeks.org/sql-trigger-student-database/
Unique & Primary key in SQLhttps://www.geeksforgeeks.org/difference-between-primary-key-and-unique-key/
What is SQL Injection?https://www.w3schools.com/sql/sql_injection.asp
Delete vs Truncatehttps://www.geeksforgeeks.org/difference-between-delete-and-truncate/
SQL Privilegeshttps://www.geeksforgeeks.org/mysql-grant-revoke-privileges/
What do you mean by Subqueryhttps://www.tutorialspoint.com/sql/sql-sub-queries.htm
What is difference between clustered and non-clustered indexes?https://www.guru99.com/clustered-vs-non-clustered-index.html
What is a Cursor?https://www.geeksforgeeks.org/what-is-cursor-in-sql/
What is Index in DBMS & it's typeshttps://www.guru99.com/indexing-in-database.html
Features of Good Relationsl Designhttps://www.microfocus.com/documentation/xdbc/win20/GUID-82D58958-278F-482C-B76F-AAF94A28DCCF.html
What is Functional Dependency?https://www.guru99.com/dbms-functional-dependency.html
What is Normalisation?https://www.guru99.com/database-normalization.html
Purpose of Normalisation?https://medium.com/@bbrumm/what-is-the-purpose-of-database-normalisation-8070b2948d70
What are 3 anomalies resolved by normalisation?https://dba.stackexchange.com/questions/194631/how-does-normalization-fix-the-three-types-of-update-anomalies
1NFhttps://www.geeksforgeeks.org/first-normal-form-1nf/
2NFhttps://www.geeksforgeeks.org/second-normal-form-2nf/
3NFhttps://www.geeksforgeeks.org/third-normal-form-3nf/
BCNFhttps://www.geeksforgeeks.org/boyce-codd-normal-form-bcnf/
Storage Systemhttps://www.tutorialspoint.com/dbms/dbms_storage_system.htm
File Structurehttps://www.tutorialspoint.com/dbms/dbms_file_structure.htm
What is a transaction?https://www.tutorialspoint.com/dbms/dbms_transaction.htm
State of Transactionhttps://www.gatevidyalay.com/transaction-states-in-dbms/
IMP Termshttps://www.studytonight.com/dbms/tcl-command.php
ACID Propertieshttps://www.geeksforgeeks.org/acid-properties-in-dbms/
How to Implement Atomicity in Trsactions?https://ashutoshtripathi.com/2017/11/27/implementation-of-atomicity-and-durability-using-shadow-copy/
Concurrent Trnsaction?https://www.geeksforgeeks.org/concurrency-problems-in-dbms-transactions/
Typehttps://www.geeksforgeeks.org/types-of-schedules-in-dbms/
What is Conflict Operation?https://www.javatpoint.com/dbms-conflict-serializable-schedule
Concurrency Controlhttps://www.tutorialspoint.com/dbms/dbms_concurrency_control.htm
What is Deadlock?https://www.geeksforgeeks.org/deadlock-in-dbms/
How to prevent Deadlockhttps://www.scaler.com/topics/operating-system/deadlock-prevention-in-operating-system/
Other Techniques to prevent Deadlockhttps://www.geeksforgeeks.org/introduction-to-timestamp-and-deadlock-prevention-schemes-in-dbms/
What is Starvation and it's reasons?https://www.geeksforgeeks.org/starvation-in-dbms/
Deadlock recoveryhttps://www.geeksforgeeks.org/recovery-from-deadlock-in-operating-system/
Resources to Followhttps://www.mongodb.com/nosql-explained/nosql-vs-sql
Which Modern Databse is Right for your use case?https://www.xplenty.com/blog/which-database/
Scaling Patternshttps://www.freecodecamp.org/news/understanding-database-scaling-patterns/
CAP Theoremhttps://www.analyticsvidhya.com/blog/2020/08/a-beginners-guide-to-cap-theorem-for-data-engineering/
Scaling RDBMS and NoSQLhttps://betterprogramming.pub/scaling-sql-nosql-databases-1121b24506df
What DB to usehttp://jlamere.github.io/databases/
In-memory Databasehttps://medium.com/@denisanikin/what-an-in-memory-database-is-and-how-it-persists-data-efficiently-f43868cff4c1
Graph Databasehttps://neo4j.com/developer/graph-database/
In-depth Indexing (optional)https://www.freecodecamp.org/news/database-indexing-at-a-glance-bb50809d48bd/
Master Slavehttps://www.datadriveninvestor.com/2020/05/28/the-master-slave-database-concept-for-beginners/
Master Slave vs Master Masterhttps://intellipaat.com/community/6605/master-master-vs-master-slave-database-architecture
ACID vs BASEhttps://www.dataversity.net/acid-vs-base-the-shifting-ph-of-database-transaction-processing/
https://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms#3️⃣-object-oriented-programming
C++https://www.javatpoint.com/cpp-oops-concepts
Javahttps://www.javatpoint.com/java-oops-concepts
Pythonhttps://www.scaler.com/topics/oops-concepts-in-python/
OOPs Conceptshttps://www.scaler.com/topics/what-is-object-oriented-programming-oop/
What is Object Oriented Programming?https://www.w3schools.com/cpp/cpp_oop.asp
How Object Oriented Programming is related to the real world?https://fdhgjhjhukj.medium.com/object-oriented-programming-with-real-world-example-63f69f917d62
Why to study OOPS?https://www.c-sharpcorner.com/forums/why-we-need-oops-in-programming-language
Limitation of OOPShttps://resources.saylor.org/wwwresources/archived/site/wp-content/uploads/2013/02/CS101-2.1.2-AdvantagesDisadvantagesOfOOP-FINAL.pdf
What is a Class?https://www.guru99.com/java-oops-class-objects.html
Difference between Structure & Classhttps://www.geeksforgeeks.org/structure-vs-class-in-cpp/
Similarity between Structure & Classhttps://practice.geeksforgeeks.org/problems/what-are-similarities-between-a-class-and-a-structure
Access Modifiershttps://www.javatpoint.com/access-modifiers
Member Functionhttps://www.studytonight.com/cpp/types-of-member-function.php
What is Constructor?https://www.geeksforgeeks.org/constructors-c/
What is Deep/Shallow Copy?https://www.geeksforgeeks.org/difference-between-shallow-and-deep-copy-of-a-class/
Copy Constructor vs Assignment Operatorhttps://www.geeksforgeeks.org/copy-constructor-vs-assignment-operator-in-c/
Virtual Constructorhttps://www.tutorialspoint.com/virtual-constructor-in-cplusplus
Virtual Copy Constructorhttps://www.tutorialspoint.com/virtual-copy-constructor-in-cplusplus
How constructors are different from a normal member function?https://iq.opengenus.org/constructor-cpp/
Can we have more than one constructor in a class?https://stackoverflow.com/questions/37517522/why-would-you-need-to-use-more-than-one-constructor
Constructor Overloadinghttps://www.scaler.com/topics/constructor-overloading-in-java/
Destructorhttps://www.geeksforgeeks.org/destructors-c/
Private Destructorhttps://www.geeksforgeeks.org/private-destructor/
Virtual Destructorhttps://www.geeksforgeeks.org/virtual-destructor/
Pure Virtual Destructorhttps://www.geeksforgeeks.org/pure-virtual-destructor-c/
How destructors are different from a normal member function?https://www.tutorialspoint.com/destructors-in-cplusplus
Can there be more than one destructor in a class?https://stackoverflow.com/questions/21934810/why-a-class-has-only-one-destructor/21934951
When do we need to write a user-defined destructor?https://stackoverflow.com/questions/22491174/when-do-we-need-to-define-destructors
When to use it?https://stackoverflow.com/questions/461203/when-to-use-virtual-destructors
Class vs Objecthttps://www.javatpoint.com/difference-between-object-and-class
Real world analogy of Class and Object?https://www.c-sharpcorner.com/blogs/real-life-examples-of-object-oriented-programming1
Statichttps://www.youth4work.com/Talent/Core-Java/Forum/119567-wat-is-the-use-of-a-static-keyword?yFast=On
Virtualhttps://www.codeproject.com/Questions/270054/why-virtual-keyword-is-used
Abstracthttps://www.tutorialspoint.com/abstract-keyword-in-Java
Finalhttps://www.javatpoint.com/final-keyword
Explicithttps://www.geeksforgeeks.org/g-fact-93/
thishttps://www.javatpoint.com/this-keyword
newhttps://www.javatpoint.com/new-keyword-in-java
consthttps://stackoverflow.com/questions/7428358/why-const-keyword-is-not-used-in-java
superhttps://www.javatpoint.com/super-keyword
Polymorphismhttps://www.scaler.com/topics/java/polymorphism-in-java/
What?https://www.javatpoint.com/runtime-polymorphism-in-java
Need?https://stackoverflow.com/questions/11064409/why-to-use-polymorphism
Function/Operator Overloadinghttps://www.javatpoint.com/cpp-overloading
Compiletime Polymorphismhttps://www.dineshonjava.com/compile-time-polymorphism-in-java/
What function can't be overloaded in C++?https://www.geeksforgeeks.org/function-overloading-in-c/
What are all operators that can't be overloaded?https://www.tutorialspoint.com/operators-that-cannot-be-overloaded-in-cplusplus
Function Overridinghttps://www.javatpoint.com/runtime-polymorphism-in-java
Virtual Functionhttps://www.javatpoint.com/cpp-virtual-function
Virtual Classhttps://www.geeksforgeeks.org/virtual-base-class-in-c/
Derived Classhttps://www.techopedia.com/definition/3780/derived-class
Can virtual function be set private?https://www.geeksforgeeks.org/can-virtual-functions-be-private-in-c/
Inline Virtual Functionhttps://stackoverflow.com/questions/733737/are-inline-virtual-functions-really-a-non-sense
Abstract Classhttps://www.javatpoint.com/abstract-class-in-java
Pure Virtual Functionhttps://www.geeksforgeeks.org/pure-virtual-functions-and-abstract-classes/
Pure Virtual Destructorhttps://stackoverflow.com/questions/1219607/why-do-we-need-a-pure-virtual-destructor-in-c
Inheritancehttps://www.scaler.com/topics/java/inheritance-in-java/
What is Inheritance?https://www.javatpoint.com/inheritance-in-java
Why/Need of Inheritance?https://www.youth4work.com/Talent/Core-Java/Forum/121637-what-is-the-need-of-inheritance?yFast=On
Can Object Oriented Programming exist without Inheritance?https://yourbasic.org/golang/inheritance-object-oriented/
Types of Inheritancehttps://www.studytonight.com/cpp/types-of-inheritance.php
Real Life Example of Multiple Inheritancehttps://www.quora.com/What-are-the-real-world-examples-of-multiple-inheritance-in-C++
What are the limitations of Inheritance?https://practice.geeksforgeeks.org/problems/what-are-advantages-and-disadvantages-of-using-inheritance
What is Sealed Modifier?https://www.c-sharpcorner.com/interview-question/what-is-sealed-modifiers
How can we call the base method without creating an instance?https://stackoverflow.com/questions/10173827/how-to-invoke-parent-class-method-without-creating-object-of-it
What is the difference between new and override?https://stackoverflow.com/questions/6576206/what-is-the-difference-between-the-override-and-new-keywords-in-c
Why Java does not support Multiple Inheritance?https://stackoverflow.com/questions/2515477/why-is-there-no-multiple-inheritance-in-java-but-implementing-multiple-interfac
What is diamond problem in case of multiple inheritance in Java?https://www.tutorialspoint.com/what-is-diamond-problem-in-case-of-multiple-inheritance-in-java
Object Slicinghttps://stackoverflow.com/questions/274626/what-is-object-slicing
How to hide base class methods/functions?https://stackoverflow.com/questions/2589146/overload-and-hide-methods-in-java
Does Overloading works with Inheritance?https://www.geeksforgeeks.org/does-overloading-work-with-inheritance/
Difference between polymorphism and inheritance?https://www.geeksforgeeks.org/difference-between-inheritance-and-polymorphism/
Generalisation vs Aggregation vs Compositionhttps://javapapers.com/oops/association-aggregation-composition-abstraction-generalization-realization-dependency/
Encapsulationhttps://www.scaler.com/topics/java/encapsulation-in-java/
What?https://www.javatpoint.com/encapsulation
Advantages/Needs?https://www.javatpoint.com/q/7216/use-of-encapsulation-in-java
How to achieve?https://www.quora.com/How-do-we-achieve-encapsulation-in-java
Code/implementation Examplehttps://beginnersbook.com/2013/05/encapsulation-in-java/
Real World Examplehttps://www.sitesbay.com/java/java-encapsulation
Difference Between Abstraction and Encapsulationhttps://www.scaler.com/topics/difference-between-encapsulation-and-abstraction/
What?https://www.scaler.com/topics/java/abstraction-in-java/
How to achieve?https://www.javatpoint.com/how-to-achieve-abstraction-in-java
header Fileshttps://www.scaler.com/topics/cpp/cpp-header-files/
Interfaceshttps://www.scaler.com/topics/java/interface-in-java/
Abstract Classeshttps://www.scaler.com/topics/java/abstract-class-in-java/
Encapsulation vs Abstractionhttps://stackoverflow.com/questions/12072980/encapsulation-vs-abstraction-real-world-example
What are the differences between interfaces and abstract classes?https://www.javatpoint.com/difference-between-abstract-class-and-interface
Dynamic Bindinghttps://www.javatpoint.com/static-binding-and-dynamic-binding
Message Passinghttps://www.panonit.com/blog/overview-message-passing-object-oriented-programming
Design a hash maphttps://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/hash_table/hash_map.ipynb
Design a LRU cachehttps://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/lru_cache/lru_cache.ipynb
Design a call centerhttps://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/call_center/call_center.ipynb
Design a deck of cardshttps://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/deck_of_cards/deck_of_cards.ipynb
Design a parking lothttps://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/parking_lot/parking_lot.ipynb
Design an online chathttps://github.com/donnemartin/system-design-primer/blob/master/solutions/object_oriented_design/online_chat/online_chat.ipynb
C vs C++ vs Javahttps://www.edureka.co/blog/difference-between-c-c-and-java
Difference between procedural programming and OOPs?https://www.geeksforgeeks.org/differences-between-procedural-and-object-oriented-programming/
Why Java is not a Purely Object Oriented Language?https://www.geeksforgeeks.org/java-not-purely-object-oriented-language/
Is an array a primitive type or an object in Java?https://www.geeksforgeeks.org/array-primitive-type-object-java/
What is early and late binding?https://stackoverflow.com/questions/10580/what-is-the-difference-between-early-and-late-binding
What is the default access modifier in a calss?https://stackoverflow.com/questions/3499572/what-is-the-default-access-modifier-of-a-class
How many instances can be created for an abstract class?https://www.quora.com/Can-we-create-instance-to-abstract-class
Define Garbage collection? How does it workshttps://stackify.com/what-is-java-garbage-collection/
Define manipulatorshttps://www.geeksforgeeks.org/manipulators-in-c-with-examples/
What fo you mean by finally block?https://www.javatpoint.com/finally-block-in-exception-handling
What is a final variable?https://www.educative.io/edpresso/what-is-the-final-keyword-in-java
What is meant by an exception?http://www.iitk.ac.in/esc101/05Aug/tutorial/essential/exceptions/definition.html
Is an error basically the same as an exception?https://www.quora.com/What-is-the-difference-between-error-and-an-exception
Exception handling?https://www.scaler.com/topics/java/exception-handling-in-java/
try catchhttps://beginnersbook.com/2013/04/try-catch-in-java/
What is the method 'finalize' used for?https://www.javatpoint.com/java-object-finalize-method
What is a token?https://www.geeksforgeeks.org/cc-tokens/
What are the three arguments of a ternary operator?https://www.freecodecamp.org/news/c-ternary-operator/
Describe the concept of enumhttps://www.geeksforgeeks.org/enumeration-enum-c/
Basic understanding of Design Patternshttps://www.javatpoint.com/singleton-design-pattern-in-java
When should I use a struct instead of a class?https://stackoverflow.com/questions/85553/when-should-i-use-a-struct-instead-of-a-class
Cohesion vs Couplinghttps://stackoverflow.com/questions/3085285/difference-between-cohesion-and-coupling
https://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms#4️⃣-computer-networks
What is Computer Networkinghttps://www.cisco.com/c/en_in/solutions/enterprise-networks/what-is-computer-networking.html
Clienthttps://learntomato.flashrouters.com/what-is-a-client-what-is-a-server-what-is-a-host/
Serverhttps://learntomato.flashrouters.com/what-is-a-client-what-is-a-server-what-is-a-host/
Peerhttps://softwareengineering.stackexchange.com/questions/274116/what-is-a-peer-in-computer-network
Hosthttps://learntomato.flashrouters.com/what-is-a-client-what-is-a-server-what-is-a-host/
Bandwidthhttps://searchnetworking.techtarget.com/definition/bandwidth
Jitterhttps://www.ringcentral.com/us/en/blog/what-is-jitter/
Packethttps://www.cloudflare.com/en-in/learning/network-layer/what-is-a-packet/
Framehttps://www.techopedia.com/definition/27175/frame-networking
Local Hosthttps://www.geeksforgeeks.org/what-is-local-host/
Bit Ratehttps://www.khanacademy.org/computing/computers-and-internet/xcae6f4a7ff015e7d:the-internet/xcae6f4a7ff015e7d:connecting-networks/a/bit-rate-bandwidth-and-latency
Noisehttps://tutsmaster.org/what-is-noise-types-of-noises-in-network/
Attenuationhttps://www.comptia.org/content/guides/what-is-attenuation#:~:text=Definition%20of%20Attenuation%20in%20Networking,to%20become%20distorted%20or%20indiscernible.&text=Radio%20signals
Distortionhttps://www.computerhope.com/jargon/d/distorti.htm#:~:text=Updated%3A%2010%2F04%2F2017,cables%20such%20as%20network%20cables.
Difference between Web vs Internethttps://www.geeksforgeeks.org/whats-difference-internet-web/#:~:text=The%20Internet%20is%20a%20global,on%20top%20of%20that%20infrastructure.
Type of transmission Mediahttps://www.geeksforgeeks.org/types-transmission-media/
Computer Network Deviceshttps://www.certiology.com/computing/computer-networking/network-devices.html
Unicast, BroadCast and MultiCasthttps://www.geeksforgeeks.org/difference-between-unicast-broadcast-and-multicast-in-computer-network/
Networking Topologyhttps://www.guru99.com/type-of-network-topology.html
LAN vs MAN vs WANhttps://www.geeksforgeeks.org/difference-between-lan-man-and-wan/
Whathttps://www.forcepoint.com/cyber-edu/osi-model
What is Ethernet?https://www.linksys.com/us/r/resource-center/basics/whats-ethernet/
Extranet vs Intranet vs Internethttps://www.geeksforgeeks.org/difference-between-internet-intranet-and-extranet/
Virtual ckt vs Datagram Networkhttps://www.geeksforgeeks.org/differences-between-virtual-circuits-and-datagram-networks/
Switch & it's typeshttps://www.geeksforgeeks.org/types-of-switches-in-computer-network/
What is Virtual LAN?https://www.guru99.com/vlan-definition-types-advantages.html
Basics of Wifihttps://www.geeksforgeeks.org/basics-of-wi-fi/
IP Addressing?https://www.kaspersky.com/resource-center/definitions/what-is-an-ip-address
IPv4 vs IPv6https://www.guru99.com/difference-ipv4-vs-ipv6.html
Supernethttps://www.geeksforgeeks.org/supernetting-in-network-layer/
Types of Routinghttps://www.geeksforgeeks.org/types-of-routing/
Network Address Translationhttps://www.geeksforgeeks.org/network-address-translation-nat/
WPA vs WPShttps://www.quora.com/What-is-the-difference-between-WPS-and-WPA-in-WiFi
LiFi vs WiFihttps://www.geeksforgeeks.org/difference-between-lifi-and-wifi/
What is ACL[AccessList]?https://www.geeksforgeeks.org/access-lists-acl/
AAA in networking (imp)https://www.geeksforgeeks.org/computer-network-aaa-authentication-authorization-and-accounting/
SONEThttps://www.geeksforgeeks.org/synchronous-optical-network-sonet/
TCP Connection Setuphttps://www.geeksforgeeks.org/tcp-connection-establishment/
3-way Handshakehttps://www.geeksforgeeks.org/tcp-3-way-handshake-process/
UDPhttps://www.geeksforgeeks.org/user-datagram-protocol-udp/
Peer2Peer Sharinghttps://www.geeksforgeeks.org/p2ppeer-to-peer-file-sharing/
Congestion in Computer Networkshttps://www.geeksforgeeks.org/congestion-control-in-computer-networks/
Error Controlhttps://www.geeksforgeeks.org/error-control-in-tcp/
Protocols in Application Layerhttps://www.geeksforgeeks.org/protocols-application-layer/
DNShttps://www.geeksforgeeks.org/domain-name-system-dns-in-application-layer/
Why does DNS uses UDP and not TCP?https://www.geeksforgeeks.org/why-does-dns-use-udp-and-not-tcp/
Address Resolution in DNShttps://www.geeksforgeeks.org/address-resolution-in-dns-domain-name-server/
DNS Spoofing or DNS Cache poisoninghttps://www.geeksforgeeks.org/dns-spoofing-or-dns-cache-poisoning/
Types of DNS Attackshttps://www.geeksforgeeks.org/types-of-dns-attacks-and-tactics-for-security/
Difference in http and httpshttps://www.geeksforgeeks.org/difference-between-http-and-https/
How DHCP server dynamically assigns IP addresses to a hosthttps://www.geeksforgeeks.org/how-dhcp-server-dynamically-assigns-ip-address-to-a-host/
How a Packet travels? (V.V.V.Imp)https://www.practicalnetworking.net/series/packet-traveling/packet-traveling/
Common Networking Commands:https://www.educba.com/networking-commands/
Difference in http and httpshttps://www.geeksforgeeks.org/difference-between-http-and-https/
What is API Gateway?https://www.youtube.com/watch?v=hYgP0cBORVg
SSL/TLShttps://www.ssl.com/faqs/faq-what-is-ssl/
Reverse Proxy?https://www.cloudflare.com/en-gb/learning/cdn/glossary/reverse-proxy/
Load Balancerhttps://www.nginx.com/resources/glossary/load-balancing/
ARP, Address Resolution Protocolhttps://www.practicalnetworking.net/series/arp/traditional-arp/
Horizontal vs Vertical Scalinghttps://www.redswitches.com/blog/difference-between-horizontal-vertical-scaling/
Caching & How does a website is cachedhttps://www.cloudflare.com/en-in/learning/cdn/what-is-caching/
What is VIP in Computer Networkshttps://learningnetwork.cisco.com/s/question/0D53i00000KsxEZ/what-is-a-vip-virtual-ip
REST API vs HTTP APIhttps://www.baeldung.com/cs/rest-vs-http
What is a container in computer networkshttps://www.vmware.com/topics/glossary/content/container-networking#:~:text=Container%20Networking%20is%20an%20emerging,concept%20to%20a%20virtual%20machine.&text=All%20applications%20inside%20the%20container,available%20inside%20the%20container%20only.
Containerisation vs Virtualisationhttps://www.burwood.com/blog-archive/containerization-vs-virtualization#:~:text=Virtualization%20enables%20you%20to%20run,single%20virtual%20machine%20or%20server.
Performance vs Scalabilityhttps://www.dynatrace.com/news/blog/performance-vs-scalability/#:~:text=Performance%20refers%20to%20the%20capability,a%20certain%20amount%20of%20data.&text=Scalability%20referes%20to%20the%20characteristic,performance%20by%20adding%20additional%20ressources.
Latency vs Throughputhttps://www.comparitech.com/net-admin/latency-vs-throughput/#:~:text=Latency%20indicates%20how%20long%20it,a%20specific%20period%20of%20time.
2G vs 3G vs 4G vs 5Ghttp://net-informations.com/q/diff/generations.html
How a VPN works?https://www.kaspersky.com/resource-center/definitions/what-is-a-vpn
Gateway vs Routerhttps://www.geeksforgeeks.org/difference-between-router-and-gateway/
NIC and MAC Addresshttps://securityxploded.com/basics-nic-mac-and-arp-tutorial.php
Public vs Private IP Addresshttps://www.geeksforgeeks.org/difference-between-private-and-public-ip-addresses/
What is Multiplexinghttps://www.javatpoint.com/multiplexing-in-computer-network
Modem vs Routerhttps://www.youtube.com/watch?v=1-gDIlH8-fs
How Bluetooth Workshttps://www.tutorialspoint.com/wireless_communication/wireless_communication_bluetooth.htm
How Hotspot Workshttps://www.netspotapp.com/hardware/wifi-hotspot/
How Email Workshttps://www.tutorialspoint.com/internet_technologies/e_mail_working.htm#:~:text=Email%20working%20follows%20the%20client%20server%20approach.&text=Person%20A%20composes%20the%20messages,area%20designated%20for%20person%20B.
How file transfer workshttps://www.geeksforgeeks.org/file-transfer-protocol-ftp-in-application-layer/
How ATM workshttps://www.geeksforgeeks.org/asynchronous-transfer-mode-atm-in-computer-network/
What is Firewall?https://www.checkpoint.com/cyber-hub/network-security/what-is-firewall/
Types of Firewallhttps://www.javatpoint.com/types-of-firewall
Possible attacks on Firewallhttps://www.geeksforgeeks.org/types-of-firewall-and-possible-attacks/
Basic Network Attackshttps://www.geeksforgeeks.org/basic-network-attacks-in-computer-network/
Denial of Service and Preventionhttps://www.geeksforgeeks.org/deniel-service-prevention/
Digital Signature & Certificateshttps://www.geeksforgeeks.org/digital-signatures-certificates/
Cryptographyhttps://www.csoonline.com/article/3583976/what-is-cryptography-how-algorithms-keep-information-secret-and-safe.html
Symmetrics Keyhttps://www.cryptomathic.com/news-events/blog/symmetric-key-encryption-why-where-and-how-its-used-in-banking#:~:text=Symmetric%20encryption%20is%20a%20type,used%20in%20the%20decryption%20process.
Assymetrics Keyhttps://cheapsslsecurity.com/blog/what-is-asymmetric-encryption-understand-with-simple-examples/
Hashinghttps://www.thesslstore.com/blog/difference-encryption-hashing-salting/
Cryptanalysishttps://www.geeksforgeeks.org/cryptanalysis-and-types-of-attacks/
Active & Passive attack in Infosechttps://www.geeksforgeeks.org/active-and-passive-attacks-in-information-security/
Types of Email Attackshttps://www.geeksforgeeks.org/types-of-email-attacks/
https://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms#-other-notes-and-resources
Cracking-The-Coding-Interviewhttps://mega.nz/folder/KhpUBLLR#cKmpMsctk9hV_p0hUaZG_Q
Link 2https://mega.nz/file/JJQRXQYR#b0EeBTHvGcPnvD-j8kuItzmgCnh1kZj32DDGIVQpFv0
https://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms#best-book-for-coding-interviews---cracking-the-coding-interview--link-2
https://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms#some-other-helpful-books
CSES Competitive Programming Handbookhttps://mega.nz/file/ZQIX1IjY#6S8FY39nLdRScbEL9uL0J_2wGWkvmYCQeibC5UrU81k
Problem Solving Strategieshttps://mega.nz/file/sER3mQoI#eCsgS89O3voBhcSAFmZNdZTvQREZ3o5cQrWQNyFZuNY
Programming Challengeshttps://mega.nz/file/lAJnxaqD#srD7jyEPzm9X0LlvlDtkFzzfoid_dpeeYXFFCeTEU-0
Concrete Mathshttps://mega.nz/file/NAYTAAhA#Kow_caWhfOdb3R-P1YrY6j3Ap7mckktfNLKBZWcpxh4
Algorithms Design Strategieshttps://mega.nz/file/9EQFmIgR#h-fZvrDN2bJN7Br-13m9NnlkfEhxzMxz0yzLAGqsfLY
The Algorithms Design Manualhttps://mega.nz/file/pJpHjKoK#LpZe3G-NnoEBKjBgjYXhH2nRCWpsaLKJfkpNy5EqGX0
📘 CPP Data Structures, Algorithms, and STL Sheethttps://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms/blob/master/Resources/Articles/CPP-STL.md
📘 CPP Syntax Cheet Sheethttps://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms/blob/master/Resources/Articles/CPP-SYNTAX.md
📘 GitHub Sheethttps://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms/blob/master/Resources/Articles/GitCheatsheet.md
📘 Data Structures and Algorithmshttps://www.scaler.com/topics/data-structures/
📙 Operating System (apni kaksha notes)https://drive.google.com/file/d/1B_kmekdghu-sO8-eXZ1kc4Xx_YtB8BPM/view
📙 Last Minute Notes – Operating Systemshttps://www.geeksforgeeks.org/last-minute-notes-operating-systems/
📙 Last Minute Notes – Computer Networkshttps://www.geeksforgeeks.org/last-minute-notes-computer-network/
📙 Last Minute Notes – DBMShttps://www.geeksforgeeks.org/last-minute-notes-dbms/
📙 Last Minute Notes – Algorithmshttps://www.geeksforgeeks.org/lmns-algorithms-gq/
📙 Last Minute Notes – Data Structurehttps://www.geeksforgeeks.org/lmns-gq/lmns-data-structure-gq/
📙 Last Minute Notes – Githttps://towardsdatascience.com/a-git-cheatsheet-that-all-coders-need-bf8ad4d91576
📒 Segment Tree | HackerEarthhttps://www.hackerearth.com/practice/data-structures/advanced-data-structures/segment-trees/tutorial/
📕 Dynamic Programming | HackerEarth)https://www.hackerearth.com/practice/algorithms/dynamic-programming/introduction-to-dynamic-programming-1/tutorial/
📒 Disjoint Set Union (Union Find) | HackerEarthhttps://www.hackerearth.com/practice/notes/disjoint-set-union-union-find/
📕 Ternary Search | HackerEarthhttps://www.hackerearth.com/practice/algorithms/searching/ternary-search/tutorial/
📒 Binary Search for Beginners | Leetcodehttps://leetcode.com/discuss/general-discussion/691825/Binary-Search-for-Beginners-Problems-or-Patterns-or-Sample-solutions
https://patch-diff.githubusercontent.com/sachuverma/DataStructures-Algorithms#-sources
hackerearthhttps://www.hackerearth.com/
interviewbithttps://www.interviewbit.com/
gfghttps://www.geeksforgeeks.org/
leetcodehttps://leetcode.com/
codechefhttps://www.codechef.com/
codeforceshttps://codeforces.com/
CSES Problem Sethttps://cses.fi/problemset/
Scalerhttps://www.scaler.com/topics/
love babbarhttps://www.youtube.com/channel/UCQHLxxBFrbfdrk1jF0moTpw
take you forwardhttps://www.youtube.com/c/takeUforward
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