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Echo: If we shout or clap near a suitable reflecting object such as a tall building or a mountain, we will hear the same sound again a little later. This sound which we hear is called an echo. Echoes are heard due to the phenomenon of Reflection of sound waves. To hear the echo clearly, the reflecting object must be more than 17.2 m from the sound source for the echo to be heard by a person standing at the source.
Ctrl, shift and alt are called ________ keys.
Which type of device allows the user to add components and capabilities to a computer system?
What is the technical term for the devices connected in a network?
____________ cells involve creating a single cell by combining two or more selected cells.
Which type of computer security attack involves exploiting software vulnerabilities that have not been patched or updated?
What is the shortcut key to switch between open windows on a Windows operating system?
In web search, finding a large number of documents with very little relevant information is termed:
Which of the following is not a storage device?
What does TCP stand for?
What is the extension to save Database?
