Practice IT Operating System Questions and Answers

• What is edge computing in IoT?
• What is a "smart object" in IoT?
• In dimensional modeling, what is a fact table?
• What does a star schema consist of?
• Which of the following is a key characteristic of OLAP systems?
• What does ETL stand for in analytics?
• Which of the following is NOT a data transformation activity?
• What is cohesion in software engineering?
• The order of convergence of Newton-Raphson method is:
• The major limitation of MIS is:
• What is the backbone of MIS?
• The major drawback of Shortest Remaining Time First is: Long average turnaround time
• The concept of demand paging relies on:
• Which of the following scheduling algorithms minimizes average seek time?
• CDATA is used in XML to:
• The is attribute in custom elements is used for:
• How do you correctly create a new Map object in JavaScript?
• Which of the following is a NoSQL database commonly used in Big Data?
• The output of circuit shown below is ...
• Which of one the below options are the two different types of bus topology ?
• Which statement is FALSE for analog input module for PLCs? 
•  Resolution of analog to digital converter is given by_____
• A 4-bit ADC converter has a full-scale analog imput of 5 Volt. Its resolution is _________
• Which of the following algorithm uses Darwinian based algorithm to find the best solutions to solve complicated problems with a greater number of variables...
• When a large number of analog signal is to be converted to digital form, an analog multiplexer is used. The best suites analog to digital converter for thi...
• Which of the following operation is performed by Domain Name Server (DNS)?
• Which statement is true regarding Inductor and capacitor filter respectively used in the rectifier?
• In a nodal analysis a circuit with 10 nodes will have _______ unknown voltage and _______equation. 
• In a digital communication system, let the encoding scheme be “Add 1 at the end of the bit stream if number of 1 bits is odd, else add 0 at the end of bi...
• The output of the circuit below is _______
• Maximum Power transfer occurs when the_____
• The Maximum Power transfer theorem states that maximum power is delivered when_______
• Which probability distribution is most widely used to model channel noise in pulse code modulation?
• Which probability distribution is most widely used to model quantization noise in pulse code modulation ?
• What are the different modes of fiber optic communication?
• What is capacity of memory having 16 address lines of row decoder, 8 address lines for column decoder and 8 data lines? 
• Which of the following action is treated as Anomaly while understanding User activity logs?
• Which of the following is TRUE for PROM memories?
• What is the name of the challenge in email forensics, when criminals used to present an email as someone else’s and in this case the machine will receive...
• What is the range of the header of a TCP segment in bytes?