Answer: A) clients and servers
Explanation:
Design by contract considers the software system to be a set of Clients and server as, the contract designing is the contract software programming approached for making the effective system software. This type of approach are consider that all the components of the clients that are instance of an operation on the components of the server, which can fulfill the precondition specific requirements which including in that operations.
Answer:
A data structure if I'm correct.
Explanation:
The computer would need to know when one command is over, as you can write code like this,
ellipse(20, 20, 20, 20);fill(255, 0, 240);
and without the semicolon it would end up looking like this,
ellipse(20, 20, 20, 20)fill(255, 0, 240)
and the computer would not know when you've stopped creating the circle and when you've started to color it.
Answer:
The answer to this question is given below in the explanation section.
Explanation:
WHILE loops and DO WHILE loops are called the condition controlled loops. The execution of these loops depends on a certain condition, when the condition is true, the loop body will be executed and when the condition becomes false, the loop body will not be executed. the major difference between both loops is given below.
In the WHILE loop, the condition is checked at the beginning of the loop whereas in the do-while loop condition is checked at the end of the loop and, in the do-while loop, the loop body is executed at least once.
The syntax of the while loop is given below
while (condition) {
// code block to be executed
}
The syntax of do-while loop is given below
do {
// code block to be executed
}
while (condition);
Answer:
She can the following tool to protect the link:
Secure Socket Shell
Explanation:
Secure Socket Shell:
It is also known as secure shell and has short form SSH. A method that is used to secure the communication over the unprotected network. This network protocol was introduced in 1995 and its most common use include the managing of different systems as the network administrator can execute different commands remotely.
In our question, Jane can use Secure socket shell in order to communicate the information to the remote end without being monitored by the adversaries.
Answer:
C. Z-wave
Explanation:
The Z wave is a wireless communications protocol used primarily for automation. The Z- wave operates using a mesh network and then uses low energy radio waves to communicate from appliance to appliance.
The Z wave operates on a lower frequency than most other popular RF devices, thus making interference nonexistent.
The range of the Z-wave is 100m. Hence, it can give a perfect coverage from the base station to the company.
<em>Option A is wrong</em> . This is because the Zigbee is insecure and has a low coverage range (10m-20m). This means that there are possibilities of interference and also improper coverage beyond 50 m.
<em>Option B is wrong.</em> This is because Bluetooth devices are insecure, can loose connections under certain conditions. They have a range of 10m which is a lot lower than 50m benchmark.
<em>Option D is wrong</em>. NFC stands for Near Field Communication. This means its range is practically about 4cm and it cannot be used for long ranges as the company intends.
