Gateway for Preparing Interviews
Define TaskTracker. TaskTracker is a node in the cluster that accepts tasks like MapReduce and Shuffle operations from a JobTracker. What is the difference between HDFS and NAS? HDFS data blocks are distributed across local drives of all machines in a cluster whereas, NAS data is stored on dedicated hardware. What is the purpose of … Read more
How can we run batch mode in MySQL? To perform batch mode in MySQL, we use the following command: mysql; mysql mysql.out; In which language MySQL has been written? MySQL is written in C and C++, and its SQL parser is written in yacc. How to install MySQL? Installing MySQL on our system allows us … Read more
What is the difference between stochastic gradient descent (SGD) and gradient descent (GD)? Both algorithms are methods for finding a set of parameters that minimize a loss function by evaluating parameters against data and then making adjustments. In standard gradient descent, you’ll evaluate all training samples for each set of parameters. This is akin to … Read more
What is Domain Naming Service(DNS)?- It is very difficult to remember a set of numbers(IP address) to connect to the Internet. The Domain Naming Service(DNS) is used to overcome this problem. It maps one particular IP address to a string of characters. For example, www. mascom. com implies com is the domain name reserved for … Read more
What do you understand by client side and server side templating The modern Rich Internet Applications (RIA) use the design concept of “single page web design”, where a single rich page makes ajax based service calls to render different sections of a page instead of the traditional approach of loading a new page of each user action.The “single page web design” … Read more
What do you do for data preparation? Since data preparation is a critical approach to data analytics, the interviewer might be interested in knowing what path you will take up to clean and transform raw data before processing and analysis. As an answer to this data analytics interview question, you should discuss the model you … Read more
What is EVM, earned value management? At every monitoring point the planned value (PV), earned value (EV) and actual cost (AC) are monitored. PMB, performance measurement baseline is the aggregation of all planned values. Variances from baselines are determined and Schedule variance (SV) and cost variance (CV) are calculated. If earned value is equal to … Read more
What is TensorFlow? TensorFlow is an open-source Machine Learning library. It is a fast, flexible, and low-level toolkit for doing complex algorithms and offers users customizability to build experimental learning architectures and to work on them to produce desired outputs. Mention the difference between statistical AI and Classical AI ? Statistical AI is more concerned … Read more
What is System R? How many of its two major subsystems? System R was designed and developed from 1974 to 1979 at IBM San Jose Research Centre. System R is the first implementation of SQL, which is the standard relational data query language, and it was also the first to demonstrate that RDBMS could provide … Read more
What is the Diamond of Death? It is an ambiguity that arises due to multiple inheritances in C#. Two classes B and C inherit from A, and D inherits from both B and C but doesn’t override the method defined in A. The Diamond Problem arises when class B or C has overridden the method … Read more