trick the janitor into unlocking Elizabeth's sealed drawer. The evidence Amy finds leads her to suspect Elizabeth cheated on the state exam. Amy informs the principal and gets Carl to testify against her. However, Elizabeth took embarrassing photos of Carl while he was drugged and uses them to blackmail him to say she is innocent. Having noticed her desk was switched, Elizabeth informs the principal that some teachers in the school are doing drugs. When the police bring a sniffer dog to search the school, they find drugs in Amy's classroom, in Elizabeth's desk. Amy is moved to another school by the superintendent. Scott asks Elizabeth to start over, but Elizabeth rejects him in favor of a relationship with Russell. When the new school year starts, Elizabeth is kinder to her co-workers, has started a relationship with Russell, and did not get the breast enlargement because she feels that she looks fine the way she is
(, ) ATM-. . 5.44, AAL ATM-. ( ATM ) IP- ( ATM 1-). AAL . 47. Võrkude turvalisus ja ohud , : 1) , , . , . 2) ( ) .( ) 3) , , . , , ... 4) - , DDOS( ) . - , , . . , . , : 1) Packet sniffing sniffer` 2) Ip spoofing 3) dDos ( - . ) 48. Krüptograafia , algoritmid , võtmed - , . , . , . 1) - 2) - . 2 : . , . , . , - - , +3. - , . , , - , . DES , - 56 (AES - 128) , . , , 2 , .
A passive intruder can listen to and record the control and data messages on the channel; an active intruder can remove messages from the channel and/or itself add messages into the channel. Network Security Considerations in the Internet Can a "real world" network intruder really listen to and record network messages? Is it easy to do so? Can an intruder actively inject or remove messages from the network? The answer to all of these questions is an emphatic "YES." A packet sniffer is a program running in a network attached device that passively receives all data-link-layer frames passing by the device's network interface. In a broadcast environment such as an Ethernet LAN, this means that the packet sniffer receives all frames being transmitted from or to all hosts on the local area network. Any Internet-connected device (e.g., a host) necessarily sends IP datagrams into the network. These datagrams carry the sender's IP address, as well as application-layer data
annaabi.ee 
