Question

Most Important topics for Interviews | CS Core topics | 2022 | SDE

Answer 1

CONTENT OF THIS POST :
Most important topics related to OS/DBMS/OOPS/CN.

 

Important Topic for OS

 

• Process (Attributes, state, life cycle, PCB) vs Thread.
• Scheduling Algorihtms
• Multiprogramming vs Multiprocessing vs Multitasking vs Multithreading.
• Memory Allocation
  • Fixed Partioning
  • Dynamic Partioning
  • Paging
  • Segmentation
• Internal and External Fragmentation.
• Memory Allocation Technique.
• Page replacement Algos
• Deadlock
• Critical section problem
• Benefits of a multiprocessor system
• RAID structure in OS and different levels of RAID Configration.
• Bootstrap program in OS
• Demand paging
• RTOS
• IPC
• Main Memory Vs Secondary Memory
• Mutex vs Semaphore

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Important Topic for DBMS

 

• Advantage of DBMS
• All type of Keys
• Normalization
• SQL queries
• Relational Algebra
• Joins
• Database and it's Utility
• Languages in DBMS
• Null vs Blank spaces, or Zero
• Data Warehousing
• Levels of data abstraction in DBMS
• Entity - Relationship (E-R) Model
• Trigger, cursor, view
• Dirty read problem
• Conflict serializable vs View serializable.
• ACID properties.
• Indexing | Indexing methods

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Important Topic for COMPUTER NETWORK

 

• Network Topology
• Switch hub router bridge
• Transmission modes
• ipv4 vs ipv6
• subnetting in IP
• Ethernet
• Media Access Control and Address Resolution Protocols
• witches, wireless access points, routers, modems
• Firewalls, TCP ports, UDP ports
• OSI layer
• TCP/IP model
• ARQ (Automatic Repeat Request Technique)
• Transmission Modes
• TCP vs UDP
• DNS DHCP FTP HTTP vs HTTPS SMTP SNMP
• Flow vs Error control

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Important Topic for OOPS

 

• Class and Objects.
• Feature/characteristics of OOPs.
• Advantages of OOPs.
• OOPs so Popular ?
• Compile time and Runtime polymorphism.
• Variable scopes.
• static (variables, Functions, Objects).
• Inheritence (Type and Mode)
• Virtual (Functions and Class)
• Abstract class and Interface.
• Friend function and Friend class.
• Call by value, refrence.
• This pointer
• Abstraction
• Exception Handling
• Constructor and Destructor.
• Copy constructor
• copy assignemnt operator
• Refrences variable
• Const (variable, Function, Arguement)
• Overloading (Function, Constructor, Operator)
• Function overriding and Inline function.