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We must assume that Trudy can do all of these except A) attempt to impersonate either Bob or Alice B) hijack or take over a connection between Bob and Alice C) evesdrop or intercept messages between Bob and Alice D) know Bob or Alice's private key 2. A certificate authority (CA) A) publishes the private keys of all entities (users) B) binds a public key (certificate) to an entity (user) C) gives each pair of users wishing to communicate a private key they can use as a session key D) keeps copies of the private keys of all entities (users) 3. A VPN (Virtual Private Network) A) Uses protocols like IPSec to provide security at the network layer B) requires the user to set up a virtual circuit to the other endpoint C) uses WEP to secure the wireless channel D) provides a secure tunnel between a website and a client browser between the application layer and transport layer 4. Access control lists (ACLs) A) prevent malware from infecting computers B) prevent all traffic except what is desired C) are rules configured by network administrators that firewalls use to determine what traffic is allowed D) blocks viruses from getting into the network 5. A firewall A) never allows packets to flow outward unless they are requested from the outside network B) is all that is ever needed for a secure network C) always allows packets to flow inward D) isolates an organization's internal network from the larger internet 6. Intrusion detection systems A) operate on the TCP/IP headers only B) often result in "false alerts" that require system administrators to investigate C) conduct deep packet inspection to alert on potentially harmful traffic D) take corrective action to prevent malware from infecting routers 7. WEP (wired equivalency protocol) A) is better than WPA B) uses a 56 bit key over a 64 bit packet, and encrypts 3 times C) is more secure than the AES standard D) Is a flawed security protocol that was poorly designed 8. A modern crypto system relies on A) a secret code that only the sender and receiver know B) Trudy being dumb C) Bob and Alice not sharing their passwords D) mathematical methods that are impossible to crack without long periods of time 9. In modern network communication, A) both symmetric and asymmetric cyptography are used together B) only asymmetric cryptography is used C) the caesar cipher is used D) only symmetric cryptography is used 10. SSL (Secure Sockets Layer) A) secures the wireless signal by adding security to the physical layer B) requires the user to enter their special SSL password C) secures the communication at the data-link layer D) provides a secure API between the application layer and transport layer
Represent this information by predicate-calculus sentences in such a way that you can represent the question Is there a member of the alpine club
Delimiter marks only the beginning of the comment (for one line comments). Write the advantages and disadvantages of each of these with respect to our criteria.
A photo-sharing startup offers the following service. A client may upload any number N of photos and the server will compare each of the N pairs of photos with their proprietary image matching algorithms to see if there is any person that is in both ..
Let us start off with once widely used Data Encryption Standard (DES) which was created by International Business Machines (IBM).
Machine executed average of 5000 instructions per microseconds. How many instructions could be executed in a single time slice?
Suppose you are a Systems Administrator, and you have been tasked with implementing RADIUS to support authentication, authorization, and accounting in your organizations Windows network environment.
This discussion board allows you to work with Word templates available on Microsoft's website. First, download a Word template from Microsoft.com by clicking Office, then Templates, then Word. Replace the placeholders with your own content. Upload..
Let S show the set of positive powers of 3 , i.e. S = {3, 9, 27, 81,...}. Find if S and N(Natural Numbers) are equipotent. Justify your answer.
What do the terms "syntactic sugar" and "syntactic salt" mean? From your knowledge of the C# programming language, list at least five syntactic sugar and salt features.
Write a 500-word paper that explains what problems are encountered when using the Internet to carry VOIP traffic and what can be done to overcome these problems
An MRU replacement policy? Which address should be evicted at each replacement to maximize the number of hits? How many hits does this address sequence exhibit if you follow this optimal policy?
Create a program that would do the following: 1. Ask the user for an integer number. 2. Read in the integer value, store it into a variable. 3. Calculate the square of that number. 4. Print out the computed value to the user.
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