Holcim Interview Questions and Answers

OWASP Top 10 is a list of the top 10 most critical web application security risks.

• Injection

• Broken Authentication

• Sensitive Data Exposure

• XML External Entities (XXE)

• Broken Access Control

• Security Misconfiguration

• Cross-Site Scripting (XSS)

• Insecure Deserialization

• Using Components with Known Vulnerabilities

• Insufficient Logging and Monitoring

Incremental refresh is a process of updating only the new or changed data in a dataset, rather than refreshing the entire dataset.

• Incremental refresh helps in reducing the time and resources required for data refresh.

• It is commonly used in data warehousing and business intelligence to keep the data up-to-date.

• For example, in a sales database, only the new sales transactions since the last refresh would be added to...read more

Joins in QlikView are used to combine data from multiple tables based on a common field.

• Joins are used to link tables together based on a common field or key.

• Common types of joins in QlikView include inner join, left join, right join, and outer join.

• Joins help in creating a single, unified view of data from multiple tables.

• Example: A common join in QlikView would be linking a 'Sales' table with a 'Product' table b...read more

SAP codes are used in the Order to Cash (OTC) process to identify various stages and transactions within the process.

• SAP codes are alphanumeric codes assigned to different stages and transactions in the OTC process.

• They help in tracking and managing orders, invoices, deliveries, and payments within SAP systems.

• Examples of SAP codes in OTC process include VA01 for creating sales order, VF01 for creating invoice, an...read more

Clustering is a technique used to group similar data points together based on certain characteristics.

• Clustering involves partitioning a set of data points into groups, or clusters, where points in the same cluster are more similar to each other than to those in other clusters.

• Common clustering algorithms include K-means, hierarchical clustering, and DBSCAN.

• Clustering is an unsupervised learning technique, meaning...read more

XGBoost is a popular machine learning algorithm that uses gradient boosting to improve model performance.

• XGBoost stands for eXtreme Gradient Boosting

• It is an ensemble learning method that builds multiple decision trees sequentially

• Each tree corrects errors made by the previous one, leading to a more accurate model

• XGBoost is known for its speed and performance in competitions like Kaggle

• It can handle missing data a...read more

Chain transmission uses metal chains to transmit power, while belt transmission uses belts made of rubber or other materials.

• Chain transmission is more durable and can handle higher loads compared to belt transmission.

• Belt transmission is quieter and smoother compared to chain transmission.

• Chain transmission requires more maintenance due to lubrication needs, while belt transmission is relatively maintenance-free.

• ...read more