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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
Draw the block diagram for the hardware that implements the following: y + xz: AR ß BR + CR where AR, BR and CR are n-bit registers and x, y, and z are control variables.
Examine each of the principles discussed in Sec. 2.1.4 and tell whether they are so important (assuming that high performance is still desired).
How many ASCII characters can be stored - How many different values can be stored.
Businesses today are extremely reliant on large amounts of data for making intelligent business decisions. Likewise, the data warehouses are often structured in a manner that optimizes processing large amounts of data.
Simplify each of the subsequent expressions to a minimum SOP or POS and sketch the circuit using AND, OR, and NOT gates.
Convert this sample phone number : 293-4223 a. Write the ASCII encoded equivalent: xx xx xx xx xx xx xxh b. Convert the phone number (not individual digits) in binary: xxxx xxxx xxxx xxxx xxxx xxxxb c. Convert the phone number (not individual digi..
Write a program that creates a Binary Tree from an array of integers, goes through it using inorder traversal (saving that to another array), then makes another balanced binary tree.
Based on your performance, ABS management was so satisfied that it wants you to develop both the structural and behavior models. This way, ABS can fully understand both the interaction that would take place between the users and the system, and th..
An ability to utilise sources such as the Internet and University library facilities to search, locate and summarise data relevant to the assignment
You prepared and distributed a system requirements document, and you anticipate some intense questioning at the meeting. When planning your presentation, what are some techniques you will use?
When one computer is transmitting a message to another, the information is usually encoded in ASCII. What actual bit strings would a computer transmit to send the message HELLO, using ASCII with even parity?
If firm chooses to execute EDI for competitive advantage, how can it assure advantage will last?
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