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1.( ) is software that plays the role of an interface between the user and database. A ( ) helps manage a database and retrieve user-requested data from it. The concept of
( ) was introduced to reduce data redundancy and dependency, two of the most significant disadvantages of a file system.

2. ( ) is an individual or a group of individuals responsible for managing a database system. The tasks of a ( ) include: designing, implementing and maintaining a database system, using the database system, and educating employees on the use of the database system.

3. ( ) database is database that has a collection of tables of data items, all of which is formally described and organized according to the ( ) model. In the ( ) model, each table schema must identify a primary column used for identifying a row called the primary key.

4.( ) is a language used to interrogate. ( ) commands can be used to interactively work with a database. ( ) can update, insert, delete and select data in database.

5. conceptual schema(°³³ä½ºÅ°¸¶) : ¿ë¾î ¼³¸í

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1. ( DBMS )´Â »ç¿ëÀÚ¿Í µ¥ÀÌÅͺ£À̽º »çÀÌ¿¡ À§Ä¡ÇÏ´Â ¼ÒÇÁÆ®¿þ¾îÀÌ´Ù. ( DBMS )´Â µ¥ÀÌÅͺ£À̽º¸¦ °ü¸®ÇÏ°í, »ç¿ëÀÚÀÇ ¿ä±¸¿¡ µû¶ó Á¤º¸¸¦ »ý¼ºÇØÁØ´Ù. ( DBMS )´Â ÆÄÀÏ ½Ã½ºÅÛÀÇ ´ÜÁ¡ÀÎ µ¥ÀÌÅÍÀÇ Áߺ¹¼º°ú Á¾¼Ó¼ºÀÇ ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇØ Á¦¾ÈµÈ ½Ã½ºÅÛÀÌ´Ù.
2. ( DBA )´Â µ¥ÀÌÅͺ£À̽º ½Ã½ºÅÛÀÇ ¸ðµç °ü¸®¿Í ¿î¿µ¿¡ ´ëÇÑ Ã¥ÀÓÀ» Áö°í ÀÖ´Â »ç¶÷À̳ª ±×·ìÀ» ÀǹÌÇÑ´Ù. ( DBA )ÀÇ Ã¥ÀÓ¿¡´Â µ¥ÀÌÅͺ£À̽º ½Ã½ºÅÛÀÇ ¼³°è, ±¸Çü ¹× À¯Áöº¸¼ö, µ¥ÀÌÅͺ£À̽º °ü¸® ½Ã½ºÅÛÀÇ »ç¿ë, µ¥ÀÌÅͺ£À̽º °ü¸® ¹× »ç¿ëÀ» À§ÇÑ Á÷¿øµéÀÇ ±³À° µîÀÌ ÀÖ´Ù.
3. ( Relational ) µ¥ÀÌÅͺ£À̽º´Â ( Relational ) ¸ðµ¨¿¡ µû¶ó Á¤½ÄÀ¸·Î ±â¼úµÇ°í Á¤¸®µÇ´Â ÇÑ ¹«¸®ÀÇ µ¥ÀÌÅÍ Å×À̺íÀ» °¡Áö°í ÀÖ´Â µ¥ÀÌÅͺ£À̽ºÀÌ´Ù. ( Relational ) ¸ðµ¨¿¡¼­ °¢ ½ºÅ°¸¶´Â Å×À̺íÀÇ ÇàÀ» ½Äº°Çϱâ À§ÇØ ±âº»Å°¶ó ºÒ¸®´Â ±âº» ¼Ó
¼ºÀ» ¹Ýµå½Ã ½Äº°ÇØ ÁÖ¾î¾ß ÇÑ´Ù.
4. ( SQL )Àº ÁúÀǸ¦ Çϱâ À§ÇÑ ¾ð¾îÀÌ´Ù. ( SQL ) command¸¦ ÀÌ¿ëÇÏ¿© µ¥ÀÌÅͺ£À̽º¿Í ´ëÈ­Çü ÀÛ¾÷ÀÌ °¡´ÉÇÏ´Ù. ( SQL )Àº µ¥ÀÌÅͺ£À̽º »óÀÇ µ¥ÀÌÅ͸¦ °»½Å, »ðÀÔ, »èÁ¦ ¹× ¼±ÅÃÇÒ ¼ö ÀÖ´Ù.

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1. ERP (Enterprise Resource Planning, Àü»çÀû ÀÚ¿ø °ü¸®)
2. äÂïÈ¿°ú
3. Push-based
4. Pull-based
5. ¸ÅÀÔ¿äû :

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1. ¸ÞŸµ¥ÀÌÅÍ
2. Data Werehouse (µ¥ÀÌÅÍ¿þ¾îÇϿ콺)
3. ´ÙÂ÷¿ø(=Å¥ºê)
4. OLAP
5. Data Mining (µ¥ÀÌÅÍ ¸¶ÀÌ´×)

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1. SDN (Software Defined Network)
2. ( )Àº(´Â) ¿ÀÇ ¼Ò½º¸¦ ±â¹ÝÀ¸·Î ÇÑ ºÐ»ê ÄÄÇ»Æà Ç÷§ÆûÀÌ´Ù. ÀÏ¹Ý PC±Þ ÄÄÇ»Å͵é·Î °¡»óÈ­µÈ ´ëÇü ½ºÅ丮Áö¸¦ Çü¼ºÇÏ°í ±× ¾È¿¡ º¸°üµÈ °Å´ëÇÑ µ¥ÀÌÅÍ ¼¼Æ®¸¦ º´·Ä·Î ó¸®ÇÒ ¼ö ÀÖµµ·Ï °³¹ßµÈ ÀÚ¹Ù ¼ÒÇÁÆ®¿þ¾î ÇÁ·¹ÀÓ¿öÅ©·Î ±¸±Û, ¾ßÈÄ µî¿¡ Àû¿ëµÇ°í ÀÖ´Ù.
3. CC (Common Criteria, °øÅë Æò°¡ ±âÁØ)
4. NFC (Near Field Communication, ¸ð¹ÙÀÏ Àåºñ³ª PCÀÇ ±Ù°Å¸® ¹«¼±Åë½Å)
5. N-Screen

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