Answer:
The network layer is the layer is the layer 3 of the seven layer Open System Interconnect (OSI model) which functions as packet forwarder for the intermediate routers by implementing technologies used for switching that provides virtual circuits' logical path
The function of the network layer includes;
1) Routing and forwarding of packets to destination which enables connectionless communication
2) Enabling internetworking
3) Hierarchical host (IP) addressing
4) Sequencing of packets
5) Handling of errors
6) Control of network congestion to prevent the collapse of the network
Explanation:
Answer:
Interrupt (INT) helps operating system to stop work on one process and start work on other process using interrupt signals.
Explanation:
Purpose of interrupts:
• Interrupts are useful when an I/O device needs to be serviced only occasionally at low data transfer rate.
• For example, when a peripheral requires the attention of the processor to perform an I/ O operation.
A trap:
• also known as an exception or a fault, is typically a type of synchronous interrupt caused by an exceptional condition
• is a software-generated interrupt.
• For example it's caused by division by zero or invalid memory access.
Can traps be generated intentionally by a user program? Yes.
If so, for what purpose?
• the usual way to invoke a kernel routine (a system call) because those run with a higher priority than user code.
• Handling is synchronous, so the user code is suspended and continues afterwards.
• In a sense they are active - most of the time, the code expects the trap.
This really depends on the thing you are trying to install, and the device you are trying to install it on.
try to find the app info and see what devices it is compatible with. make sure you are using a compatible device, and make sure you are signed in.
The answer to this question is E
