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Salsk061 [2.6K]
3 years ago
12

I want to discard my old computer and securely erase the data from my hard drive.

Computers and Technology
1 answer:
FrozenT [24]3 years ago
3 0
Wipe off the hard drive with a software eraser but it won't be quick and won't work on defective disks
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Swapping two numbers
Tju [1.3M]

Answer:

Swapping two numbers means exchange the values of two variables with each other.

8 0
3 years ago
To convince the server that a user is authentic, the authentication server creates a _________ that contains the user's ID and n
Rasek [7]

Answer: ticket

Explanation

6 0
3 years ago
Assume the variable myWord references a string. Write a statement that uses a slicing
givi [52]

Answer:

"myWord[-5:]"

Explanation:

So whenever you slice a string, the syntax in python is expressed as:

string[a:b:c]

where a=start index (this is included in the sliced string)

b = end index (this is excluded from the sliced string)

c = increment

If any of these are included, they are set to default values, where a=0, b=len(string), and c=1.

The increment isn't necessary here, and it's just so you know the syntax a bit more

Anyways, I'm assuming when the question asks to display "the last 5 characters in the string" it means in order? e.g "abcdefghijk" -> "ghijk" and not "abcdefghijk" -> "kjihg"

The last piece of information to know is what a negative index represents.

For example if I have the piece of code

"

string = "hello world"

print(string[-1])

"

This will output "d", and the negative 1 represents the last letter. If you did -2, it would output the 2nd to last letter and so on.

So to print the last 5 characters, we simply use the -5 as the starting index.  

"

string = "hello world"

print(string[-5:])

"

This will print "world" or in other words, the last 5 letters. The reason for this is because the -5 in the first spot means the starting index is the 5th to last letter, and when you have the : after the -5, this is the way of telling python you're slicing the string, and not indexing 1 character. You don't need to include another value after that, because it will default to the last index of the string, or more specifically the last index + 1, since the last index is still included.

So the last thing to know, is that if the string isn't greater than 5 characters, it just prints the entire string, and no errors are raised. You can test this out your self as well. So whenever you have a string that's less than 5 characters the entire string is outputted.

3 0
1 year ago
Which of the following modes of replication requires a very low latency network connection and ensures data remains in synch wit
Snowcat [4.5K]

Answer:

b. Synchronous replication

Explanation:

Replication of data in storage partitions or in a number redundant array of independent disk drives helps to promote redundancy, as implied, and faulty tolerance to reduce loss of data.

There are two categories of replication and they are synchronous and asynchronous replication.

Synchronous replication requires low latency network site to mirror data, while asynchronous replication mirrors data in large metropolitan area in high latency networks.

4 0
3 years ago
Modern ssds use a technique called "____" to spread write operations around the storage medium, thus evening out the impact of d
masha68 [24]

The question above has multiple choices as below;

<span>a.      </span>Wear aggregation.

<span>b.      </span>Wear mitigation.

<span>c.      </span>Wear prevention

<span>d.      </span>Wear leveling

The answer is d) Wear leveling.


This technique by some SSD controllers to increase the memory’s lifetime is called wear leveling. The mechanism for this principle is simple: distribute the entries for all the blocks evenly so that they will wear out evenly. Flash controller typically manages wear leveling and uses a wear leveling algorithm to control which physical block to use.







7 0
3 years ago
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