20+ Objectways Technologies Interview Questions and Answers

I prefer classless addressing due to its flexibility and efficient use of IP addresses.

• Classless addressing allows for more efficient use of IP addresses by allowing for variable-length subnet masks.

• Classful addressing is limited to fixed-length subnet masks, which can result in wasted IP addresses.

• Classless addressing also allows for more flexibility in network design and can accommodate networks of varying sizes.

• Classful addressing is outdated and no longer used in modern n...read more

Page replacement techniques are algorithms used in operating systems to manage memory efficiently.

• FIFO (First In, First Out)

• LRU (Least Recently Used)

• LFU (Least Frequently Used)

• Optimal Page Replacement

• Clock Page Replacement

The acid properties of a transaction refer to its key characteristics for ensuring reliability and consistency in database systems.

• Atomicity: A transaction is considered atomic if it is treated as a single unit of work that either completes in its entirety or is fully rolled back.

• Consistency: This property ensures that a transaction transforms the database from one consistent state to another consistent state.

• Isolation: Transactions should be isolated from each other to preve...read more

2NF and 3NF are both normal forms in database normalization, with 3NF being a stricter form of normalization than 2NF.

• 2NF eliminates partial dependencies, while 3NF eliminates transitive dependencies.

• In 2NF, every non-prime attribute is fully functionally dependent on the primary key, while in 3NF, every non-prime attribute is non-transitively dependent on the primary key.

• Example: If a table is in 2NF but not in 3NF, it means there are transitive dependencies present that nee...read more

Quick sort is faster for small arrays, while Merge sort is more efficient for larger arrays.

• Quick sort has an average time complexity of O(nlogn), while Merge sort has a time complexity of O(nlogn) in all cases.

• Quick sort is an in-place sorting algorithm, while Merge sort requires extra space.

• Quick sort is not stable, while Merge sort is stable.

• Quick sort is often used in practice due to its efficiency, while Merge sort is used in external sorting and when stability is requir...read more

Primary key uniquely identifies a record in a table, while foreign key establishes a link between two tables.

• Primary key ensures uniqueness of each record in a table

• Foreign key establishes a relationship between two tables

• Primary key can't have null values, while foreign key can have null values

• Example: In a 'students' table, 'student_id' can be a primary key, while in a 'courses' table, 'student_id' can be a foreign key linking to 'students' table

A view in DBMS is a virtual table created by a query that can be used like a regular table.

• Views are used to simplify complex queries by storing them as a virtual table.

• They can also be used to restrict access to certain columns or rows of a table.

• Views do not store data themselves, but instead display data from the underlying tables.

• Changes made to the data in a view will affect the underlying tables.

• Example: CREATE VIEW view_name AS SELECT column1, column2 FROM table_name W...read more

DDL commands are used to define the structure of database objects, while DML commands are used to manipulate data within those objects.

• DDL commands include CREATE, ALTER, DROP, TRUNCATE, etc.

• DML commands include INSERT, UPDATE, DELETE, SELECT, etc.

• DDL commands are used to create or modify the structure of database objects like tables, indexes, etc.

• DML commands are used to insert, update, delete, or retrieve data from tables.

A page fault is an exception that occurs when a program tries to access a page of memory that is not currently in physical memory.

• Occurs when a program tries to access a page of memory that is not in physical memory

• Causes the operating system to bring the required page into memory from disk

• Can be classified as major or minor depending on whether the page is already in memory but marked as invalid

• Example: When a program accesses a page of memory that has been swapped out to di...read more

Answers to various technical questions related to computer science

• Thrashing is a phenomenon in which a computer system spends more time in swapping pages than executing actual instructions

• DBMS keys include primary key, foreign key, candidate key, super key, etc.

• A foreign key is a field in a table that refers to the primary key of another table

• 3NF or Third Normal Form is a database normalization technique that ensures that there are no transitive dependencies in a table

• The mid...read more

KL University established a Biotechnology platform to promote research and innovation in the field.

• The platform provides state-of-the-art facilities for research in biotechnology.

• It offers training and workshops to students and researchers to enhance their skills.

• The platform collaborates with industry partners to promote technology transfer and commercialization.

• Research projects in the platform include areas such as genomics, proteomics, and bioinformatics.

• The platform also...read more

Molecular biotechnology plays a crucial role in plant breeding by enabling the identification and manipulation of specific genes.

• Molecular markers are used to identify desirable traits in plants

• Genetic engineering techniques are used to introduce specific genes into plants

• CRISPR/Cas9 technology is used to edit genes in plants

• Molecular biotechnology helps in developing disease-resistant and high-yielding plant varieties

• It also helps in reducing the time and cost required for t...read more

Different transformation methods used in RDT include normalization, standardization, log transformation, and power transformation.

• Normalization: scaling data to a range of 0 to 1

• Standardization: scaling data to have a mean of 0 and standard deviation of 1

• Log transformation: transforming data to its logarithmic form

• Power transformation: transforming data using a power function

The Communication rule is a guideline that helps in effective communication. It was developed by Paul Watzlawick.

• The Communication rule states that it is impossible to not communicate.

• According to this rule, every behavior, verbal or non-verbal, conveys a message.

• Even silence or lack of response communicates something.

• The rule emphasizes the importance of being aware of our communication and its impact.

• It encourages individuals to consider the unintended messages they may be ...read more

Body language is a non-verbal form of communication.

• Body language includes gestures, facial expressions, posture, and eye contact.

• It can convey emotions, attitudes, and intentions.

• For example, crossed arms may indicate defensiveness or closed-off behavior.

• Maintaining eye contact can show interest and engagement.

• Body language can complement or contradict verbal communication.

Received project funding from various sources including government grants, private donors, and industry partnerships.

• Received funding from government grants for research projects

• Secured funding from private donors for community outreach programs

• Collaborated with industry partners to fund technology development projects

I am a hardworking and dedicated individual with a passion for helping others.

• I have experience in administrative tasks such as scheduling appointments and managing emails

• I am fluent in both my mother tongue and English, allowing me to communicate effectively with a diverse range of people

• I am a quick learner and am always eager to take on new challenges

• I am a team player and enjoy collaborating with others to achieve common goals

Shaking hands is a common gesture of greeting and respect in many cultures.

• Shaking hands should be firm but not too strong.

• Maintain eye contact while shaking hands.

• Avoid shaking hands if you are sick or have dirty hands.

• In some cultures, it is customary to shake hands with both hands or to bow instead.

• Women may prefer not to shake hands due to cultural or religious reasons.

• Always be aware of cultural differences and adjust accordingly.

Implemented a database migration project for a financial institution

• Analyzed existing database structure and identified areas for improvement

• Developed a migration plan and tested it thoroughly before implementation

• Ensured data integrity and security during the migration process

• Provided training to end-users on the new database system