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Q : List and briefly describe some of the defenses against....

Computer Network Security :

problem1 list and briefly describe some of the defenses against buffer overflows that can be used when compiling new

Q : Describe how a heap buffer overflow attack is implemented....

Computer Network Security :

problem1 describe how a return-to-system-call attack is implemented and why it is used2 describe how a heap buffer

Q : List some desirable characteristics of an ids what is the....

Computer Network Security :

problem1 explain the base-rate fallacy2 list some desirable characteristics of an ids3 what is the difference between

Q : You can also explore application level dos attacks using....

Computer Network Security :

problemif you have access to a network lab with a dedicated isolated test network explore the effect of high traffic

Q : Provide an example of an activity that may occur in each of....

Computer Network Security :

assignment1 list and briefly define four classes of intruders2 list and briefly describe the steps typically used by

Q : What are three benefits that can be provided by an ids what....

Computer Network Security :

problem1 describe the differences between a host-based ids and a network-based ids how can their advantages be combined

Q : What is the difference between signature detection and....

Computer Network Security :

problem1 list a number of machine-learning approaches used in anomaly detection systems2 what is the difference between

Q : What advantages do a distributed hids provide over a single....

Computer Network Security :

problem1 which of anomaly hids or signature and heuristic hids are currently more commonly deployed why2 what

Q : What are possible locations for nids sensors are either....

Computer Network Security :

problem1 what are possible locations for nids sensors2 are either anomaly detection or signature and heuristic

Q : What types of information could be used what does this use....

Computer Network Security :

problemconsider the first step of the common attack methodology we describe which is to gather publicly available

Q : Discuss the considerations that should come into play when....

Computer Network Security :

problemwireless networks present different problems from wired networks for nids deployment because of the broadcast

Q : What are the advantages and disadvantages of using such a....

Computer Network Security :

probleman example of a host-based intrusion detection tool is the tripwire program this is a file integrity checking

Q : What information is used by a typical packet filtering....

Computer Network Security :

problem1 list three design goals for a firewall2 list four characteristics used by firewalls to control access and

Q : What is the difference between a packet filtering firewall....

Computer Network Security :

problem1 what is the difference between a packet filtering firewall and a stateful inspection firewall2 what is an

Q : What are the common characteristics of a bastion host what....

Computer Network Security :

problem1 what are the common characteristics of a bastion host2 why is it useful to have host-based firewalls3 what is

Q : What are the different places an ips can be based how can....

Computer Network Security :

problem1 what is the difference between an internal and an external firewall2 how does an ips differ from a firewall3

Q : Thus an intermediate fragment may pass through the filter....

Computer Network Security :

problemas was mentioned in section 93 one approach to defeating the tiny fragment attack is to enforce a minimum length

Q : In an ipv4 packet the size of the payload in first fragment....

Computer Network Security :

problemin an ipv4 packet the size of the payload in the first fragment in octets is equal to total length - 4 internet

Q : In particular consider whether each of the malware....

Computer Network Security :

problemassume you have found a usb memory stick in your work parking area what threats might this pose to your work

Q : What steps can you take to check whether this has occurred....

Computer Network Security :

problemsuppose you observe that your home pc is responding very slowly to information requests from the net and then

Q : Suppose that while trying to access a collection of short....

Computer Network Security :

problemsuppose that while trying to access a collection of short videos on some web site you see a pop-up window

Q : What threat might the app pose to your smartphone should....

Computer Network Security :

problemsuppose you have a new smartphone and are excited about the range of apps available for it you read about a

Q : How could you check your suspicions without threatening....

Computer Network Security :

problemassume you receive an e-mail which appears to come from a senior manager in your company with a subject

Q : What form of attack is this e-mail attempting what is the....

Computer Network Security :

problemassume you receive an e-mail which appears to come from your bank includes your bank logo in it and with the

Q : What type of malware and on which computer systems might....

Computer Network Security :

problemsuppose you receive a letter from a finance company stating that your loan payments are in arrears and that