List of top Questions asked in CBSE CLASS XII

_________ is used to organise users, groups and computers.
Which of the following is a limitation of Domain Controller?
Users are one of the most popular objects in Active Directory. They are used for _________ .
A _________ is a hierarchical structure that stores information about objects on the network.
_________ is a network formed by connecting a few personal devices like computers, laptops, mobile phones, smart phones, etc.
TCP/IP stands for :
The data link layer also corrects errors that may have occurred at the physical layer. (True/False)
A program that runs on a local machine requesting service from the server and terminates when the service is completed is called _________ .
The ISO – OSI model is an 8-layer architecture. (True/False)
In this topology, a single backbone wire called _________ is shared among the nodes, which makes it cheaper and easier to maintain.
In _________ data transmission mode, messages can be sent in both directions, but only in one direction at a time.
Who design and develop wind farm systems?
A company that is in the first stage of operations is called _________ .
The shortcut key in a spreadsheet for making the text bold is _________ .
_________ is a state of feeling upset, annoyed and hopeless.
People who always believe that they are more important than others suffer from ________ personality disorder.
All interrogative sentences end with a/an _________ .
Explain the working principle of three-phase induction motor with its advantages.
Explain the construction and working principle of a room cooler. Draw a diagram of internal structure of a room cooler.
What can we do to help prevent manual handling injuries in the workplace?
With the help of diagram, explain the working principle of capacitor start motor.
What are the advantages and disadvantages of Dynamometer wattmeter? Write the different types of Dynamometer wattmeters.
Why is starter necessary in DC motor? Explain its working in brief.
With the help of a diagram, explain the working of a universal motor.
With the help of diagram, explain basic construction and working principle of a transformer.