Computer Networks Answers

Consider a system with 13 dedicated devices of the same type and all jobs currently running on this system require a maximum of three devices to complete their execution but they each run for long periods of time with just two devices and request the remaining one only at the very end of the run. Assume that the job stream is endless and that your operating system’s device allocation policy is a very conservative one: No job will be started unless all the required drives have been allocated to it for the entire duration of its run. a. What is the maximum number of jobs that can be in progress at once? Explain your answer.

Outline any there measures as examples of how the cyber security individual targets can take to prevent cyber attacks

Describe any two possible individual or personal cyber impacts using examples

Using a short description and give one example of each of the following areas of cyber security : cybercrime, cyber harassment or bullying , cyber warfare, cyber surveillance , what makes cyber security difficult

Describe briefly how cyber security overlaps the information security, application security, network security, internet security

Q1. Create an insightful report on the benefits, uses, and business applications of the following business apps:

Amazon Web Services

Q.4.1 You have configured a switch on your network. Your organisation has asked you to

provide possible solutions or defences for the following attacks.

Write down one security defence for each of the following presented attacks and

indicate the type of attack that it is:

Attack A:

An attacker connects his device to the switch’s mirror port.

Attack B:

An attacker overflows the switch’s address table with fake MAC addresses, forcing

it to act like a hub, sending packets to all devices.

Attack C:

The attacker sends a forged ARP packet to the source device, substituting the

attacker’s computer MAC address.

1.      What do you think are the importance of managing waste electrical and electronic equipment (WEEE)?

2.      How will you use the knowledge you acquired about 3Rs environmental policies?

3.      Cite a situation in which you can apply the knowledge of understanding 3Rs environmental policies.