1. Assume that passwords are selected from four-character combination of 26 alphabetic characters. Assume that an adversary is able to attempt passwords at a rate of one per second. a. Assuming no feedback to the adversary until each attempt has been completed, what is the expected time to recover the correct password? b. Assuming feedback to the adversary flagging an error as each incorrect character is entered, what is the expected time to discover the correct password?
a car starts from rest with uniform acceleration "a" for sometime and then with uniform retardation "b" and comes to rest. The time of motion is "t". find the maximum velocity attained by it?
How you can update memcached when you make changes to php?
Where session variables are stored?
Define a positive displacement pump?
What is cascade delete?
in a multiprogramming and time-sharing environment,several user share the system simultaneously. this situation can result in various security problems a.discuss two such problems b.how can we ensure the same degree of security in a time-share machine as in a dedicated machine?
What steps can be taken to avoid stress corrosion cracking (SCC) in steel vessels used for storing anhydrous ammonia?
What happens if we don’t override run method ?
Does inline style override important?
What is the reason behind the invention of c#?
can we take 100% input of contractor service tax billing where service receiver have to pay 50% service tax
What is Shared DB Connection in Talend?
State few disadvantages of android in the mobile market.
i am a animation student. in december i am going to face an interview so plse tell me what type of question they will ask ( about animation) how should i tell the answer (i am poor in comunication skill) pls tell me some tips its help full to me