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Mahajan Doshi & Associates Interview Questions and Answers
Q1. SQL queries and differences b/w delete and truncate
Delete and truncate are SQL commands used to remove data from a table, but with key differences.
DELETE is a DML command used to remove specific rows from a table based on a condition.
TRUNCATE is a DDL command used to remove all rows from a table, resetting auto-increment values.
DELETE can be rolled back, while TRUNCATE cannot be rolled back.
DELETE triggers ON DELETE triggers, while TRUNCATE does not trigger any triggers.
DELETE is slower as it logs individual row deletions, wh...read more
Q2. what are Linux commands
Linux commands are instructions given to the operating system to perform specific tasks or operations.
Linux commands are case-sensitive
Commands are typically entered in the terminal
Common commands include ls (list files), cd (change directory), mkdir (make directory)
Commands can be combined with options and arguments for more specific actions
Q3. What is virtualization concept
Virtualization is the process of creating a virtual version of a device or resource, such as a server, storage device, network or operating system.
Virtualization allows multiple virtual instances to run on a single physical machine
It helps in optimizing resources and improving efficiency
Examples include VMware for server virtualization, VirtualBox for desktop virtualization
Q4. What is cloud and aws
Cloud computing is the delivery of computing services like servers, storage, databases, networking, software, analytics, and intelligence over the internet.
AWS (Amazon Web Services) is a popular cloud computing platform offered by Amazon.
Cloud computing allows users to access resources on-demand without the need for physical infrastructure.
AWS provides a wide range of services such as EC2 (Elastic Compute Cloud), S3 (Simple Storage Service), and RDS (Relational Database Servi...read more
Q5. Tell me about lecturere
A lecturer is a person who delivers lectures or presentations on a particular subject or topic.
Lecturers typically have expertise in a specific field or subject area.
They often teach at universities, colleges, or other educational institutions.
Lecturers may also conduct research and publish academic papers.
They play a crucial role in educating and inspiring students.
Some lecturers may also provide training or workshops in their area of expertise.
Q6. Tell me about clg
CLG is an acronym for College.
CLG stands for College.
It is a common abbreviation used in educational settings.
Example: I am currently attending CLG for my undergraduate degree.
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