Practice IT Networking Questions and Answers

• Which algorithm is commonly used for collaborative filtering in recommendation systems?
• Which data analytics technique is suitable for handling missing data points in a dataset?
• What does A/B testing involve in data analytics?
• In time series forecasting, what does MAE stand for?
• Which data visualization technique is best suited for displaying hierarchical data with a tree-like structure?
• Which of the following techniques is used for dimensionality reduction while preserving the data’s variance?
• In data analytics, what is the primary purpose of sentiment analysis?
• What is Hadoop's primary function in big data processing?
• Which programming language is commonly used to write MapReduce jobs in Hadoop?
• What is the main advantage of Hadoop's HDFS (Hadoop Distributed File System)?
• Which component in Hadoop is responsible for managing cluster resources and scheduling tasks?
• Which Apache project provides real-time stream processing and messaging capabilities in Hadoop?
• In Hadoop, what is the purpose of the MapReduce paradigm?
• Which tool is used to build data pipelines and workflows in Hadoop-based systems?
• Which of the following is an open-source SQL query engine for analyzing data stored in Hadoop clusters?
• What is Apache Spark primarily used for in big data processing?
• Which recovery model in a database allows for point-in-time recovery using transaction logs?
• What is the purpose of using the Write-Ahead Logging (WAL) technique in database systems?
• Which type of data refers to information that is generated by users while interacting with digital systems, such as web clicks and social media interaction...
• Which data visualization technique is commonly used to represent the frequency distribution of a large dataset?
• What is the main advantage of using NoSQL databases for big data storage over traditional relational databases?
• Hadoop is an open-source framework commonly used for processing and analyzing big data. What is the primary component of Hadoop responsible for distributed...
• What does a "hash" represent in the context of blockchain?
• In a public blockchain, who can participate in the validation of transactions and creation of new blocks?
• In Generative Adversarial Networks (GANs), which component generates realistic data samples?
• What is the main drawback of using large batch sizes in mini-batch gradient descent during training?
• What is the primary advantage of using a snapshot-based backup method over traditional backup methods?
• In a distributed database system, what is the main challenge in implementing a robust backup and recovery strategy?
• Which data processing technique is commonly used for handling large-scale data in distributed computing environments?
• Which data mining technique is used to find patterns or associations in big datasets, such as market basket analysis?
• What consensus mechanism is used by the Bitcoin blockchain?
• What is a "51% attack" in the context of blockchain?
• What is a "smart contract" in the context of blockchain?
• Which activation function is typically used in the output layer of a regression task?
• Which technique is used to address the issue of class imbalance in a classification task?
• In digital electronics, a flip-flop is a sequential logic circuit capable of storing one bit of information. Which statement about flip-flops is true?
• In a database cluster setup, what is the purpose of a "warm standby" server?
• In the context of database backup, what does the term "point-in-time recovery" refer to?
• What is the primary characteristic that defines "big data"?
• In big data analytics, what is the process of identifying and correcting errors or inaccuracies in the collected data?