Avaya Global Connect Senior SQL Database Administrator Interview Questions and Answers

Q1. OEM services-related Questions
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Q2. What is Oracle Block Change
Ans. 
Oracle Block Change is a feature that tracks and records changes made to database blocks.
• Oracle Block Change is used for efficient data replication and synchronization.

• It helps in identifying and transferring only the changed data blocks instead of the entire database.

• Oracle GoldenGate utilizes Oracle Block Change technology for real-time data integration.

• Block Change Tracking (BCT) is a feature in Oracle Database that...read more
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Q3. In RAC database 2 nodes are there how you will re-direct users to 2nd node only?
Ans. 
To redirect users to the 2nd node in a RAC database, you can use services and connection load balancing.
• Create a service for the 2nd node in the RAC database.

• Configure connection load balancing to distribute connections evenly between the nodes.

• Update the connection string in the application to point to the service for the 2nd node.

• Test the connection to ensure users are redirected to the 2nd node.
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Q1. What is pull request
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A pull request is a method of submitting contributions to a project on GitHub for review and merging.
• Pull requests are commonly used in version control systems like Git to propose changes to a codebase.

• They allow developers to collaborate and discuss changes before merging them into the main branch.

• Pull requests typically include a description of the changes, related issues, and any necessary tests or documentation.

• Rev...read more
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Q1. What is sateful set
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Stateful set is a Kubernetes controller that manages the deployment and scaling of a set of pods with persistent storage.
• Stateful set ensures that each pod in the set has a unique identity and stable network identity.

• Stateful set pods are created in order and are not replaced until they are deleted.

• Stateful set is commonly used for stateful applications like databases where each pod requires persistent storage.

• Example:...read more
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Q1. What is dba, explain the architecture of dba
Ans. 
DBA stands for Database Administrator. The architecture of DBA involves managing and maintaining databases to ensure data integrity and security.
• DBA is responsible for installing, configuring, and upgrading database software.

• They monitor database performance and troubleshoot issues.

• DBA designs and implements backup and recovery strategies to prevent data loss.

• They also manage user access and security permissions within...read more
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Q2. How you will maintain the database and what are the types of backup
Ans. 
Maintaining the database involves regular monitoring, performance tuning, applying patches, and ensuring backups are taken regularly.
• Regularly monitor database performance and usage

• Perform routine maintenance tasks such as applying patches and updates

• Take regular backups to ensure data integrity and disaster recovery

• Implement security measures to protect the database from unauthorized access

• Optimize database performanc
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Q1. Start up parameters of sql server
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Start up parameters are used to configure the behavior of SQL Server when it starts up.
• Start up parameters are specified in the SQL Server Configuration Manager.

• Common start up parameters include -d (database files location), -e (error log location), -m (single user mode), -T (trace flags), etc.

• Start up parameters can be modified to customize the behavior of SQL Server during startup.

• Example: -dC:\Program Files\Microso...read more
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Q2. Differential backup query
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Q3. Sql server statics
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Q4. Log file architecture
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Q1. What is CAP theorem What is column families What function are used in cassandra what is key value pair
Ans. 
CAP theorem states that in a distributed system, it is impossible to simultaneously guarantee consistency, availability, and partition tolerance.
• CAP theorem: Consistency, Availability, Partition tolerance - pick two

• Column families: A way to organize data in NoSQL databases like Apache Cassandra

• Functions in Cassandra: read, write, delete, update

• Key value pair: Basic data structure where each key is associated with a val
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Q2. What is Cloumn families
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Column families are a way to organize related data in a NoSQL database, grouping columns together for efficient retrieval.
• Column families are a way to group related columns together in a NoSQL database.

• They are used in databases like Apache Cassandra to organize data efficiently.

• Column families can contain a large number of columns, each with a unique name and value.

• They are stored together on disk for faster retrieval...read more
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Q3. What are the functions in cassandra
Ans. 
Cassandra functions are used for data manipulation and retrieval in Cassandra database.
• Aggregate functions like COUNT, SUM, AVG, MIN, MAX

• Date and time functions like NOW, DATEOF, UNIXTIMESTAMP

• Mathematical functions like ABS, CEIL, FLOOR, SIN, COS

• String functions like LENGTH, SUBSTRING, CONCAT, LOWER, UPPER
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Q4. Fundamentels of cassandra
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Cassandra is a distributed NoSQL database management system designed for handling large amounts of data across multiple servers.
• Cassandra is a highly scalable and fault-tolerant database system.

• It is based on a distributed architecture, with data spread across multiple nodes.

• Cassandra uses a masterless design, where all nodes are equal and can handle read and write requests.

• It uses a partitioning strategy called consis...read more
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Q5. What is key value pair
Ans. 
Key value pair is a data structure where each key is associated with a corresponding value.
• Key value pairs are commonly used in dictionaries, hash tables, and JSON objects.

• Keys are unique identifiers that are used to access the corresponding values.

• Examples include 'name: John', 'age: 30', 'city: New York'.
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Q1. Dataguard architecture
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Q2. Rman backup and restoration
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Q1. Why you join inm
Ans. 
I joined inm because of the company's reputation for innovation and growth in the tech industry.
• Attracted to company's reputation for innovation

• Excited about opportunities for growth in tech industry

• Impressed by company culture and values
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Q1. Why this company
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I am impressed by the company's innovative technology solutions and strong reputation in the industry.
• The company has a track record of developing cutting-edge technology solutions.

• I admire the company's commitment to excellence and continuous improvement.

• The company's reputation for providing top-notch training and development opportunities is appealing to me.
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Q2. What salary do you expect
Ans. 
I expect a competitive salary based on my experience, skills, and the market rate for Oracle Database Administrators.
• Research the average salary range for Oracle Database Administrators in your area

• Consider your level of experience and skills when determining your salary expectations

• Be prepared to negotiate based on the specific responsibilities and benefits offered by the employer
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Te Question can came throuth:-
1. How can you take out the details or values from two tables?
2. How can you add Columns and Values in a table?

They can give us some Assistant to do