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2 years ago

A popular encryption method used to protect data that travel over a wireless network is ____

Computers and Technology

1 answer:

kramer2 years ago

4 0

Answer:

The answer is "WPA".

Explanation:

WPA stands for Wi-Fi Protected Access. It is a safety standard for consumers with wireless Internet networks compatible with computing devices. WPA's Wi-Fi Partnership has been developed to provide advanced data encryption and device authentication, better than the original Wi-Fi security standard Wired Equivalent Privacy(WEP).

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Easy coding question, please help.

borishaifa [10]

Answers:

What is the index of the last element in the array? stArr1.length()-1

This prints the names in order. How would I print every other value? Change line 4 to: index = index +2

Change line 7 to: i < names.length

5 0

2 years ago

In a batch operating system, three jobs are submitted for execution. Each job involves an I/O activity, CPU time and another I/O

Ilia_Sergeevich [38]

Answer:

a) CPU utilization for uniprogramming system = 18.2%

b) CPU utilization for multiprogramming system = 41.379%

Explanation:

IO time = total time – CPU time

For JOB 1

CPU time = 3ms ,

total time= 23ms

IO time = 23-3 = 20ms ,

For JOB 2

CPU time =5ms

total = 29ms

IO time = 29-5 = 24ms

For JOB 3

CPU time = 4ms

total = 14ms

IO time = 14-10 =10ms

1.) In uniprogramming system, operations are performed sequentially

CPU utilization=total CPU time / total real time

CPU utilization =(3+5+4) / (23+29+14)

CPU utilization =0.182 or 18.2%

2) In multiprogramming system, jobs wait for the CPU to get free while performing IO operations concurrently

steps followed by the os

1. IO for 1st job at 0ms

2. IO for 2nd job at 0ms

3. IO for 3rd job at 0ms

4. CPU time for 3rd job at 5ms

5. Next IO job for 3rd job at 9ms END at 14ms

6. CPU time for 1st job at 9ms

7. Next IO job for 1st job at 14ms END at 23ms

8. CPU time for 2nd job at 14ms

9. Next IO job for 2nd job at 15ms END at 29ms

CPU time is 3+5+4 =12ms

Total execution time = 29ms

CPU utilization = 12*100/29= 41.379%

5 0

2 years ago

It can store 5 times more data <br>than DVD and has scratch<br>resistance property.

pav-90 [236]

Is this the full question?

7 0

3 years ago

A private network that is accessible only to employees of the company that created it is called:

Trava [24]

Intranet is the answer to this question.

Google definition: An intranet is a network based on TCP/IP protocols (an internet) belonging to an organization, usually a corporation, accessible only by the organization's members, employees, or others with authorization.

6 0

3 years ago

Give two benifets to the supermarket maneger and two benifets of customers of using barcods on all items

sergey [27]

Answer:

The benefit of barcodes on items for the manager and the customers are as follow-

Explanation:

Benefits of using bar codes on all items to the manger are as follow -

The process of customer dealing increases by quickly scanning the item, rather than manually noting down the details.
The track record of all the items can be maintained properly.

Benefits of using bar codes on all items to the customers are as follow -

The time period to purchase any item increases, hence the customer can shop for many items in short span of time.
The chances of any mistake gets reduced, as everything is done digitally.

5 0

3 years ago