Ist 220 Homework

In: Computers and Technology

Submitted By sylus
Words 933
Pages 4
5
a) A vulnerability is a flaw in a program that permits a specific attack or set of attacks against this program to succeed
b) Users can eliminate vulnerabilities by installing patches. After patch installation, the program is safe from attacks based on that particular vulnerability
c) Zero‐day attack
6
a) A virus attaches itself to another program, but worms are stand‐alone programs
b) Propagation vector is a computer to computer transmission method
c) Most virus and worms spread involve human gullibility, U.S. forces plug in an infected USB
RAM sticks into their USB ports and spread the infection throughout their network
d) Worms are able to jump by themselves from an infected computer to another target computer that has a particular vulnerability.
e) It is dangerous because directly propagating worms can spread. The slammer worm infected
90% of all vulnerable computers attached to the internet within 10 minutes.
11
a) A hacker can use exploit to take over the host by sending exploit packets. The act of breaking into a computer is called an exploit
b) The attacker can manually look through files or delete files, and transferring them outside the network.
12
a)
b)
c)
d)
e)
f)

the purpose if a DoS iis to make a computer entire network unavailable to its legitimate users. botnet
Bot master the bots are flexible because of their ability to divide so that the bot master can give them multiple different tasks to complete at the same the time.
g) first thing is that, the attacker floods the victim's computer with attack packets. then the victim's computer becomes so busy processing the flood of attack packets that it cannot process legitimate packets.
14
A. most hackers today are criminal hackers
B. this type of hackers are very dangerous because they have the ability and have access to a lot…...

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