Computer Mcqs

Which Network topology needs HUB for its working?

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Which Network topology needs HUB for its working?A. Bus
B. Ring
C. Star
D. Star and Bus both

In star topology each device in the network is connected to a central device called hub. Unlike Mesh topology, star topology doesn’t allow direct communication between devices, a device must have to communicate through hub.

 

Human beings are referred to as Homosapiens, which device is called Sillico Sapiens?

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Human beings are referred to as Homosapiens, which device is called Sillico Sapiens?

A. Monitor
B. Hardware
C. Robot
D. Computer
The “Silico Sapiens” is called to robots. Mankind is homo sapiens, the intelligent hominid. Robots are in the (very rapid) process of becoming intelligent machines.
Homo sapiens (Latin: “wise man”) is the scientific name for the human species. Homo is the human genus. H. sapiens is the only surviving species of the genus Homo.

in MS-Excel__________ short cut key is used for hiding rows.

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in MS-Excel__________ short cut key is used for hiding rows.A. Ctrl+H
B. Ctrl+7
C. Ctrl+9
D. None of the above

There are several dedicated keyboard shortcuts to hide and unhide rows and columns.
Ctrl+9 to Hide Rows.
Ctrl+0 (zero) to Hide Columns.
Ctrl+Shift+( to Unhide Rows.
Ctrl+Shift+) to Unhide Columns – If this doesn’t work for you try Alt,O,C,U (old Excel 2003 shortcut that still works).