As the question says we want to create a directory called ~/Documents/papers, but we are not sure whether it exist or not so we would type the command for making directory starting with mkdir.

Here mkdir means make directory. Followed by mkdir we will use -p. Here p is used to create all the directories for getting us the directory we want and its advantage is that it would ignore all the errors if the directory already exist.

Followed by the name of the directory that we want to create.

So the desired answer for the given condition would be mkdir -p ~/Documents/papers

5 0

2 years ago

Computer-generated color images of the brain that provide information about brain activity and glucose metabolism are produced b

frozen [14]

The answer to this question is the PET scan. Positron Emission Tomography or PET scan is an imaging test that checks and trace for diseases in the body. This also shows how the body organs is functioning / working. The doctor can evaluate the function of the patients body by the 3D color images produced by the PET Scan.

4 0

2 years ago

Host B on subnet Teachers transmits a packet to host D on subnet Students. Which Layer 2 and Layer 3 addresses are contained in

mr Goodwill [35]

Answer:

Layer 2 destination address = 00-00-0c-94-36-ab

Layer 2 source address = 00-00-0c-94-36-bb

Layer 3 destination address = 172.16.20.200

Layer 3 source address = 172.16.10.200

Explanation:

To properly understand the given answer, let us define some terms used in the narrative of the question:

Subnet: The sub network or as popularly called subnet is a logical division of the internet protocol of a network into many different and smaller network. It is typically used to create partitions or subdivisions of large networks into bits.

PDU: The PDU can be said to be an abbreviation for the word power distribution unit or protocol data unit. It can also be refereed to as an IT device that possess many output ports or terminals. They are mostly used to distribute or transmit power or data to other operating devices with the telecommunication system.

Now referring back to the question asked and the image attached below, we can see that host a and b send their signal through subnet teachers while host c and d send their signal through subnet students thus,

Layer 2 destination address = 00-00-0c-94-36-ab

Layer 2 source address = 00-00-0c-94-36-bb

Layer 3 destination address = 172.16.20.200

Layer 3 source address = 172.16.10.200 are the correct destination.

4 0

2 years ago