Explanation:
Interesting problem that can happen to coffee drinkers and slush lovers.
Most of the time, multiple sticking keys simultaneously appearing infer a recent (3 days to a week) spill of a sugary liquid on the keyboard.
If it is a built in laptop keyboard, read no further, confide in a repair shop because keys are not easy to open, and harder to put back.
If it is a USB (or PS2) keyboard, AND you are handy, AND you can lift the key tops (and put them back), you can detach keyboard from computer, then after removing key tops of the sticky keys, try cleaning with warm (to better disolve the sugar) water with a non-dripping cotton tip and dry with cotton swaps. Let dry for the next few days before plugging in again. Do NOT use solvents, and definitely NOT "contact cleaners".
The safest and suggested option is to replace the (detachable) keyboard with a compatible or similar one. If PS2 keyboards are hard to find, there are converter cables that plug into the PS2 sockets of the computer, and accept USB input (and reverse cables).
Answer:
Data recovery
Explanation:
Data recovery -
It is the method involved in computer , where the lost , damaged or corrupted file or data is gained back again , is referred to as data recovery.
The information is recorded by some secondary method , when the file cannot be accessed in the original manner.
Hence , from the given scenario of the question,
The correct term is data recovery.
C. custom slideshow because this is where you can customise everything you do eg. pen colour, don't etc.
Answer: In external hashing the hash table is in disk where each slot of the page table holds multiple entries which refers to pages on the disk organised in the form of buckets.
B-trees are self balancing trees which contains sorted data and allows insertion, deletion, traversals
Traversal is the process of visiting the nodes of the tree data structure.
Explanation:
External hashing is different from internal hashing and it refers to concepts in database management systems. Internal hashing stores only single record maintained in page table format, whereas external hashing holds multiple entries.
B-trees are generalisation of binary trees where it can have more than 2 children.
Traversal of trees helps in insertion, deletion, modification of nodes in tree data structure
Answer:
While loop
Explanation:
It should be noted that the number of times which the computer will ask the user to take a guess is not known.
When we have a condition like this, the while loop (or in some programs; the do-while loop) is to be used.
To further back my point, see the following program in python.
<em>secret_code = 1234</em>
<em>user_guess = int(input("Take a guess: "))</em>
<em>while user_guess != secret_code:</em>
<em> user_guess = int(input("guess again: "))</em>
<em>print("You guessed right")</em>
<em />
The above program will keep asking the user to take a guess until the user enters 1234.
<em>This may or may not be possible with a for loop.</em>
