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svlad2 [7]
3 years ago
13

"True or False? Software designers use layering and other techniques to organize large software systems."

Computers and Technology
1 answer:
grandymaker [24]3 years ago
6 0

Answer:

True.

Explanation:

Software design can be defined as the process in which a designer or software developer uses a set of tools, techniques and components to create a graphical representation of a software that is intended to be used for solving a problem for the end users.

Hence, software designers use layering such as presentation, business, database, persistence layers and other techniques to organize large software systems.

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Which of the following could not be represented by columns in the SPSS data editor? a. Levels of between-group variables. b. Lev
natita [175]

Answer:

a. Levels of between-group variables.

3 0
3 years ago
Read 2 more answers
About n processes are time-sharing the CPU, each requiring T ms of CPU time to complete. The context switching overhead is S ms.
Genrish500 [490]

Answer:

(a) Q = (M-(1-n)S)/n

(b)    

When M = 450,

       Q = 82

       % CPU time wasted = 8.889%

When M = 90,

       Q = 10

       % CPU time wasted = 44.44%

When M = 50,

       Q = 2

       % CPU time wasted = 80%

Explanation:

Given  Data:

n = process

T = ms time

Context switch time overhead = S

and M is total overhead

See attached file for the calculation.

8 0
3 years ago
Harry Potter and his friends are at Ollivander's with Ron, finally replacing Charlie's old broken wand. Hermione decides the bes
Step2247 [10]

Answer:

SELECT a.id, ab.age, b.min_coins_needed, b.power

FROM(SELECT code, power, min(coins_needed) AS min_coins_needed

 from Wands

 group by power, code) AS b

JOIN Wands wa

 ON a.coins_needed = b.min_coins_needed AND a.code = b.code AND a.power = b.power

JOIN Wands_property AS ab  

 ON a.code = ab.code  

WHERE ab.is_evil = 0          

ORDER BY b.power desc, ab.age DESC;              

Explanation:  

SELECT statement is used to select the columns id, age, coins_needed and power of the wands that Ron's interested in.

It is required to get the minimum coins_needed so, min() aggregate function is used to return the minimum value of coins_needed. So this is how minimum coins needed for wands with same age and power are attained and the resultant set is given the name of min_coins_needed  using alias. This is then grouped by code and power using GROUP BY because code and age has one to one mapping.

Next the JOIN is used to combine columns from two or more relations. Here Wands and Wands_property are joined to obtain id and age.

WHERE clause is used to filter the wands that are not evil.

ORDERED BY is used to sort in order of power and age, the result obtained. DESC is used to sort the result in descending order of power and age.

4 0
3 years ago
List at least 5 features that can be used to format a report.
irina [24]

Answer:

Following are the features for formatting a report in word 2013

Design Tab

Convenient Layout options and alignment

Resume work option

Managing longer documents in a better way

Enhanced table features

Explanation:

In word 2013, many of the new features were introduced:

The design tab was given a new look, including templates options and much more.

The layout option was also made much convenient by putting all necessary option under the right-click option.

Word started to present an option for resuming the work were you left last time. This made the working much efficient.

By dealing with headings the word 2013 version made it easier to compact the document by collapsing heading and focus on the specific part you want.

Many of the options were added to tables formatting such as border, colors, line weight and much more.

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3 years ago
Which of the following is not an advanced strategy you may use to help you conduct a search on the Internet?
frosja888 [35]

using firefox isnt an advanced stragedy

6 0
3 years ago
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