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2 years ago

Define horizontal scroll bar

Computers and Technology

2 answers:

mario62 [17]2 years ago

6 0

Answer:

Horizontal scrolling is the ability of a program to allow a user to scroll horizontally using the window scroll bar. The horizontal scroll bar is not used often and usually not visible or not accessible because it is not needed. Below is an image of a Microsoft Windows window with a vertical and horizontal scroll bar.

Explanation:

;)

Murrr4er [49]2 years ago

4 0

Answer:

the thing thats on the bottom of your page when you zoom in that makes the page go left and right.

Explanation: birb

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You order a new personal computer. A representative from the store calls to ask if you need CD-copying software in your personal

VashaNatasha [74]

Answer:

Explanation:

The purpose of a CD-copying software is that it records data on a recordable CD.

7 0

4 years ago

The purpose of __________________ is to isolate the behavior of a given component of software. It is an excellent tool for softw

OLga [1]

Answer:

d.) black-box testing

Explanation:

Software testing can be regarded as procedures/process engage in the verification of a system, it helps in detection of failure in the software, then after knowing the defect , then it can be corrected. Black Box Testing can be regarded as a type of software testing method whereby internal structure as well as design of the item under test is not known by one testing it. In this testing internal structure of code/ program is unknown when testing the software, it is very useful in checking functionality of a particular application. Some of the black box testing techniques commonly used are; Equivalence Partitioning, Cause effect graphing as well as Boundary value analysis. It should be noted that the purpose of black-box testing is to isolate the behavior of a given component of software.

3 0

3 years ago

Oxnard Casualty wants to ensure that their e-mail server has 99.98 percent reliability. They will use several independent server

sattari [20]

Answer:

The smallest number of servers required is 3 servers

Explanation:

Given

$Reliability = 99.98\%$

$Individual Servers = 95\%$

Required

Minimum number of servers needed

Let p represent the probability that a server is reliable and the probability that it wont be reliable be represented with q

Such that

$p = 95\%\\$

It should be noted that probabilities always add up to 1;

So,

$p + q = 1$ '

Subtract p from both sides

$p - p + q = 1 - p$

$q = 1 - p$

Substitute $p = 95\%\\$

$q = 1 - 95\%$

Convert % to fraction

$q = 1 - \frac{95}{100}$

Convert fraction to decimal

$q = 1 - 0.95$

$q = 0.05$

------------------------------------------------------------------------------------------------

To get an expression for one server

The probabilities of 1 servers having 99.98% reliability is as follows;

$p = 99.98\%$

Recall that probabilities always add up to 1;

So,

$p + q = 1$

Subtract q from both sides

$p + q - q = 1 - q$

$p = 1 - q$

So,

$p = 1 - q = 99.98\%$

$1 - q = 99.98\%$

Let the number of servers be represented with n

The above expression becomes

$1 - q^n = 99.98\%$

Convert percent to fraction

$1 - q^n = \frac{9998}{10000}$

Convert fraction to decimal

$1 - q^n = 0.9998$

Add $q^n$ to both sides

$1 - q^n + q^n= 0.9998 + q^n$

$1 = 0.9998 + q^n$

Subtract 0.9998 from both sides

$1 - 0.9998 = 0.9998 - 0.9998 + q^n$

$1 - 0.9998 = q^n$

$0.0002 = q^n$

Recall that $q = 0.05$

So, the expression becomes

$0.0002 = 0.05^n$

Take Log of both sides

$Log(0.0002) = Log(0.05^n)$

From laws of logarithm $Loga^b = bLoga$

So,

$Log(0.0002) = Log(0.05^n)$ becomes

$Log(0.0002) = nLog(0.05)$

Divide both sides by $Log0.05$

$\frac{Log(0.0002)}{Log(0.05)} = \frac{nLog(0.05)}{Log(0.05)}$

$\frac{Log(0.0002)}{Log(0.05)} = n$

$n = \frac{Log(0.0002)}{Log(0.05)}$

$n = \frac{-3.69897000434}{-1.30102999566}$

$n = 2.84310893421$

$n = 3 (Approximated)$

Hence, the smallest number of servers required is 3 servers

6 0

3 years ago

Explain in detail what this code does, Whats the flow in it, and whats the risk that its creating and what can i do to fix it? (

kodGreya [7K]

Answer:

The buffer has room for 499 characters (you always have to reserve 1 for the terminating \0 character).

The code copies all characters passed in the commandline (argv[1]) into this buffer without checking. If there are more than 499 characters supplied, these will be copied into a memory location that is not intended for it. This will probably cause your program to crash, but if the extra data is somehow executed by the processor as if it were a program, this could be a way to sneak a virus into your computer.

So, while copying data, it is important to always limit the maximum amount to the allocated space.

5 0

3 years ago

Write a python application that allows a user to enter any number of student test scores until the user enters 999. If the score

Kryger [21]

Answer:

This program is as follows

total = 0; count = 0

testscore = int(input("Score: "))

while testscore != 999:

if testscore < 0 or testscore > 100:

print("Out of range")

else:

total+=testscore

count+=1

testscore= int(input("Score: "))

print(count,"scores entered")

print("Arithmetic Average:",total/count)

Explanation:

This initializes total and count to 0

total = 0; count = 0

This gets input for score

testscore = int(input("Score: "))

The following iteration stop when 999 is entered

while testscore != 999:

This prints out of range for scores outside 0 - 100

if testscore < 0 or testscore > 100:

print("Out of range")

Otherwise

else:

The total score is calculated

total+=testscore

The number of score is calculated

count+=1

Get another input

testscore = int(input("Score: "))

The number of score is printed

print(count,"scores entered")

The average of score is printed

print("Arithmetic Average:",total/count)

7 0

3 years ago

Define horizontal scroll bar​

Define horizontal scroll bar