Chpt 7 & 8 Intro to Computers
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47 terms
Terms | Definitions |
|---|---|
 What are social site's driven by? | Content is almost entirely driven by it's members. |
| What are the two features of SixDegrees.com? | Create a user profile, and create a contact list which are called "friends" |
| How was the word blog formed? | Web + Log = Blog |
| Figure 7.2 page 210 | Graph of Ages compared to Change in Unique Audience Composition...Age(Percentage of Usage + or -)... 2-17(-9%)...18-34(-1%)...35-49(2%)...50-64(4%)...65+(7%) |
| Sketchblog | A blog consisting of drawings and sketches. |
| Social Bookmarking | A method of sharing bookmarks with others using tags. |
| Tag | A keyword assigned to information on the Web used by social bookmarking sites to locate and organize content references. |
| Default passwords are... | predictable and simple. "password" can change it following instructions to make it more difficult. |
| Wi-Fi Protected Access (WPA) | An encryption standard used to protect data sent across a wireless network. Designed by the Wi-Fi Alliance to overcome the security limitations of Wired Equivalent Privacy (WEP). |
| Wired Equivalent Privacy (WEP) | An encryption standard used to protect data sent across a wireless network. An older and less secure technology than Wi-Fi Protected Access (WPA). |
| First Step in Public Key Encryption | You send your friend a public key. |
| Worm | A self-replicating computer program with the ability to send out copies of itself to every computer on a network. Worms are usually designed to damage the network, in many cases by simply clogging up the network's bandwidth and slowing its performance. |
| Spyware | Software that tracks activities of a computer user without the user's knowledge. |
| Transport Layer Security (TLS) | A protocol that protects data such as credit card numbers as they are being transmitted between a customer and online vendor or payment company. https:\\ |
| Fingerprint Readers | Come on newer computers. Can purchase external ones. Uses fingerprint to access computer instead of a password. Security feature. |
| Intrusion Prevention System (IPS) | A robust form of anti-malware program that offers network administrators a set of tools for controlling access to the system and stopping attacks in progress. |
| Symmetric Encryption | Device with the matching key can decrypt the message. Those without the matching key cannot decrypt the message and receive a phony or unreadable message. |
| Biometrics | Technology that uses devices such as fingerprint readers or retinal scanners to identify a person by a unique physical characteristic. |
| Uninterruptible Power Supply (UPS) | A battery backup that provides a temporary power supply in case of a power failure. |
| Cold Server | A spare server you can use to take over server functions |
| Warm Server | Activated periodically to get backup files from the main server |
| Hot Server | Receives frequent updates and is available to take over if the server it mirrors fails. |
| First thing created in Access? | Table. |
| Access has... | Field, table, query, report, form, record |
| Where is a field represented at on a table? | Single unit of information about a person, place, item, or event. Row or Column heading... |
| Primary Key | The field selected as a unique identifier for the database. |
| Navigation Pane Organized | Tabs Table Query Report |
| How to add new records...what view? | Data View |
| Filter | Used to view only those records that meet specified criteria. |
| Default Print Size and Orientation | Margins (1x1x1x1) Orientation-Portrait |
| Keyboard shortcut to add new record | Ctrl + + |
| Restrict Values in lookup table | >1000 And <1100 Between <=5000 Less than or equal too "CA" exactly that "" "CA" Or "US" this or this exactly "" >=25 Minimum of |
| Edit table in which view.. | Design View |
| One to many (1<---oo) | 1=Primary Many=Foreign |
| One to One (1<---1) | Relationship |
| Query is... | Access object designed to extract data from one or more tables. Usually created to select records that answer a question. |
| First step in creating a query... | A) Click on table, click query design B) Wizard Query |
| Lower half of design query window... | design grid |
| How to know it's a one to one relationship | Shows in query design view |
| Check boxes indicate... | Whether to hide or show the field |
| 2nd Criteria means... | Must meet both criteria to be shown |
| What does ! mean? | Run |
| Define aggregated function | e.g. sum avg min max or count can be used in a query to calculate statistics from a datasheet. |
| Duplicate Query | Wizard Query |
| Add calculation to form | Property sheet --> data |
| To find no absences, what query would you use? | Find unmatched query in query wizard |
| When adding a row or column, what shows? | Gold bar |
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