4.4 \( \begin{array}{l}\text { Describe TWO ways how you could determine if your COMPUTER has been } \\ \text { infected by malware. }\end{array} \) 4.5 State TWO ways in which spooling can be utilised in a NETWORK printer. 4.6 \( \begin{array}{l}\text { Give TWO disadvantages of frequently defragmenting a hard drive. }\end{array} \) 4.7 \( \begin{array}{l}\text { Briefly explain the purpose of a user interlace (UI)(First mark) and } \\ \text { give an example of an input device commonly used with a user interface (Second } \\ \text { mark). }\end{array} \) 4.8 \( \begin{array}{l}\text { The new monitor you connected to your computing device displays a resolution error } \\ \text { message. } \\ \text { Where would you change the resolution to resolve/fix this error message? }\end{array} \) 4.9 Give TWO disadvantages of convergence. 4.10 Give TWO reasons why a company would choose to use grid computing. 4.11 State TWO limitations of firewalls. 4.12 Give TWO possible solutions to resolve restrictions (bottlenecks) in data flow that appear in local storage areas.

Find the base of the triangle with an area of \( 36 \mathrm{ft}^{2} \) and a height of 12 ft. Be sure to include the units. base \( =\square \)

Describe the process of calculating a standard deviation. Give a simple example of its calculation (such as calculating the standard deviation of the numbers \( 2,3,4,4 \), and 6 ). What is the standard deviation if all of the sample values are the same? Fill in the blanks to complete the process of calculating a standard deviation. Compute the mean of the data set. Then find the deviation from the mean for every data value by value.

At the end of a 5 year period, Landi has to pay R7 000 to settle her loan. During the 5 year period, she paid back R1 000 after the first year, but she needed to borrow another R500 after 3 years. If the interest rate for the first 2 years is \( 9 \% \) per annum compounded annually and changes to \( 9,2 \% \) per annum compounded monthly thereafter, how much did Landi originally borrow?

1. Имеется 10 кучек монет по 10 монет в каждой. Одна из кучек целиком состоит из фальшивых монет, но какая именно - неизвестно. Известен лишь вес настоящей монеты, и, кроме того, уста- новлено, что каждая фальшивая монета на один грамм тяжелее, чем нужно. Монеты можно взвешивать на весах, которые показывают точный вес. Какое минимальное число взвешиваний необходимо произвести, чтобы отыскать кучку, целиком состоящую из фальшивых монет? Ответ обоснуйте.

Find the area of the rectangle with dimensions below. \( b=9 f t, h=12 f t \) Submit Question