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Computer Awareness Quiz - Set 41

image 2017-10-10 11:57:33
Computer Awareness Quiz - Set 41

Q1. The ______ button on the Quick Access Toolbar allows you to cancel your recent commands or activities.
(a) Search
(b) Cut  
(c) Undo
(d) Redo
(e) Shift

Q2. Which among the following is the system root folder for Microsoft Windows by default?
(a) Windows Manager
(b) C:/Windows
(c) Task Manager
(d) Cmd
(e) Homegroup

Q3.The process of connecting/ accessing to an account is called as:
(a) Login
(b) Logout
(c) Sign In
(d) Sign Out
(e) None of these

Q4. The first computers were programmed using which of the following language.
(a) Assembly language
(b) Machine language
(c) Source code
(d) Object code
(e) None of the above

Q5. Which one of the following is a set of one or more attributes taken collectively to uniquely identify a record?
(a) Candidate key
(b) Sub key
(c) Super key
(d) Foreign key
(e) None of these

Q6. In the relational modes, a cardinality is termed as  __________.
(a) Number of tuples
(b) Number of attributes
(c) Number of tables
(d) Number of constraints
(e) None of the above

Q7. Which of the following can be used to protect sensitive data from prying eyes?
(a) Encryption
(b) Passwords
(c) File locks
(d) File permissions
(e) None of these

Q8. A _________ typically connects personal computers within a very limited geographical area, usually within a single building.
(a) LAN
(b) FAN
(c) TAN
(d) WAN
(e) VPN

Q9. Pressing Windows logo key + E will open which of the following?
(a) My Computer
(b) My document
(c) Recycle Bin
(d) Control Panel
(e) Windows Media Player

Q10. To delete the selected item permanently, press __________.
(a) Alt + Delete
(b) Shift + D
(c) Shift + Delete
(d) Alt + D
(e) None of these

Answers:

Ans1. (c)
To undo an action Click Undo Button on the Quick Access Toolbar. Keyboard shortcut Press CTRL+Z or F2. For the F2 function key to undo your last action, you might need to press the F-Lock key.

Ans2.(b)
By default, the system root folder for Microsoft Windows is C:/Windows. However, this can be changed for several reasons. The active partition on a hard drive could be designated by a letter other than C.

Ans3. (a)
Login is the process of connecting/ accessing to an account.

Ans4. (b)
First computers were programmed using machine language.

Ans5. (c)
Super key is a set of one or more attributes taken collectively to uniquely identify a record

Ans6. (a)
In the relational modes, cardinality is termed as Number of tuples.
 
Ans7. (d)
File permissions can be used to selectively provide authorisation to viewer to view data, thus protecting data from prying eyes.

Ans8. (a)
A local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings

Ans9. (a)
Pressing Windows logo key + E will open My Computer.

Ans10. (c)
Shift + Delete will delete the selected item permanently.