Answer:
Explanation:
The statements are logically equivalent if they have the same truth tables. So let´s use truth tables in order to determine if they are logically equivalent or not:
The picture that I attached you shows the truth table for each case. As you can see in the highlight columns:
They are logically equivalent because they have exactly the same truth values between each other. Hence, we can conclude that they are logically equivalent.
Answer:
Explanation:
Following are the Semaphores:
Customers: Counts waiting customers;
Barbers: Number of idle barbers (0 or 1)
mutex: Used for mutual exclusion.
Cutting: Ensures that the barber won’t cut another customer’s hair before the previous customer leaves
Shared data variable:
count_cust: Counts waiting customers. ------------copy of customers. As value of semaphores can’t access directly.
// shared data
semaphore customers = 0; semaphore barbers = 0; semaphore cutting = 0; semaphore mutex = 1;
int count_cust= 0;
void barber() {
while(true) { //shop is always open
wait(customers); //sleep when there are no waiting customers
wait(mutex); //mutex for accessing customers1
count_cust= count_cust-1; //customer left
signal(barbers);
signal(mutex);
cut_hair();
}
}
void customer() {
wait(mutex); //mutex for accessing count_cust
if (count_cust< n) {
count_cust= count_cust+1; //new customer
signal(customers); signal(mutex);
wait(barbers); //wait for available barbers get_haircut();
}
else { //do nothing (leave) when all chairs are used. signal(mutex);
}
}
cut_hair(){ waiting(cutting);
}
get_haircut(){
get hair cut for some time; signal(cutting);
}
Answer:
Boolean
Explanation:
If statement condition always returns true or false,which is a boolean data type.
X is true or false
it maybe a variable or an expression.
A virtual switch is special software that enables VMs to communicate with each other, without going outside of our system.
Virtual switches are a key technology that allows multiple virtual machines (VMs) to have access to the internet. By creating a virtual switch, you can essentially create a "mini-internet" for your VMs, allowing them to communicate with each other and with the outside world.
There are many benefits to using virtual switches, including improved security and performance. By isolating your VMs from the physical network, you can better protect them from attacks. And because virtual switches only forward traffic that is destined for their VMs, they can help improve network performance.
If you're looking to create a virtual switch, there are a few things you'll need. First, you'll need a physical server with multiple network adapters.
You'll also need a virtualization platform, such as VMware vSphere, to create and manage your virtual switches. Finally, you'll need a switch management tool, such as the Cisco Nexus 1000V, to help you configure and manage your virtual switches.
Creating a virtual switch is a great way to improve the security and performance of your virtual machines. By using virtual switches, you can create a safe and efficient network for your VMs.
Learn more on virtual switches here:
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