Explain how packet sniffers can be used for both good and bad.
What will be an ideal response?
Unauthorized users can use them to access sensitive data, such as usernames and passwords, that might be transmitted in plaintext form over a network. Packet sniffers have several beneficial uses, however. Network administrators often use them to analyze network problems, monitor bandwidth use, detect and prevent network intrusions, and more.
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Design a schema for an airline containing the following information.
i. the unique Id and name of each passenger ii. the unique Id, type (possible value A, B, and C) and capacity of each plane iii. the unique Id, date, plane Id, starting location and destination of each flight (a plane cannot be scheduled for more than one flight on any particular day) iv. each reservation made by a passenger on a flight Show all primary and foreign keys.
What trends and/or analysis lead you to your recommendation?
What will be an ideal response?
The Windows ____________________ button on the taskbar opens an app featuring downloadable apps, games, music, movies, and TV.
Fill in the blank(s) with the appropriate word(s).
The ________ accesses a structure member via the structure variable name.
a) structure member operator b) structure pointer operator c) structure arrow operator d) none of these