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     I n a very general sense, a database administrator is the individual responsible for maintaining the RDBMS system. The DBA has many different responsibilities, but the overall goal of the DBA is to keep the server up at all times and to provide users with access to the required information when they need it. The DBA makes sure that the database is protected and that any chance of data loss is minimized.   A DBA can be someone who, from the start, has concentrated in the area of database design and administration. A DBA can be a programmer who, by default or by volunteering, took over the responsibility of maintaining a database server during project development and enjoyed the job so much that he switched. A DBA can be a system administrator who was given the added responsibility of maintaining a database server. DBAs can even come from unrelated fields, such as accounting or the help desk, and switch to Information Systems to become DBAs. A DBA needs the ...

1. Which of the following is not JavaScript Data Types? a. Undefined b. Number c. Boolean d. Float ans ---> Float 2. Inside which HTML element do we put the JavaScript? a. <script> b. <head> c. <meta> d. <style> ans---> <script> 3. Predict Output: nm="Fruit"; m=nm.length; switch(m){ case 2: document.write("two");               break; case 3: document.write("three");               break; case 4: document.write("four");              break; case 5: document.write("five");               break; case 6: document.write("six");               break; case 7: document.write("seven");               break; } a. four b. five c. 5 d. 4 ans ---> five 4. >>> in JavaScript is known as  a. bitwise shift right operator b. b...

 1. The ...................is the path through data transmit.       a. Protocol       b. Medium        c. Sender       d. None of the above ans--> Medium 2. The information to be transmitted in data communication system is called .............. a. Protocol b. Medium c. Communication d. Message ans--->  Message 3. Radio broadcast system is an example of ................... transmission a. Simplex b. Half Duplex c. Full Duplex d. None of the above ans---> Simplex 4. Communication between computer and monitor is .............transmission a. Simplex b. Full Duplex c. Half Duplex d. None of the above ans----> Simplex 5. Walkie-Talkie communication is an example of ............transmission. a. Simplex b. Half Duplex c. Full Duplex d. None of the above ans----> Half Duplex 6. .................transmission mode in which data can transmit in both direction at the same time a. Simplex b. ...

 1. It is better to use DBMS than a file when there are                      a. Multiple users wish to access the data                         b. Stringent real time requirements                      c. Complex relationships among data                         d. All of the above       ans =>   Multiple users wish to access the data 2. DBMS is type of ....................software.                       a. Application software                        b. System Softwa...

 a. The unique address of a webpage on the internet is called          i. URL                    ii. Browser          iii. Protocol          iv. HTTP               ans: URL b. Which is the protocol used in internet?          i. TCP/IP                    ii. FTP         iii. ICP                         iv. ISP                         ans: TCP/IP c. Which one of the following is internet service?          i. Chat                    ii. E-commer...

 1. Which of the following acts as the central authority in the network? Protocol Client Server None of the above               Ans: Server 2. Which of the following is not media converter? BNC Terminator RJ-45 NIC               Ans : NIC 3. In which of the following network model all the computers have equal access? Peer-to-Peer Network Apple talk Network Client/Server Network None of the above               Ans: Peer-to-peer network 4.  Which is an inter-networking device that connects two dissimilar networks? Bridge Gateway Switch Router     Ans: Gateway  5. Which of the following device is multiports repeater? Hub router bridge gateway          Ans : Router 6. Which of the following is not a protocol? TCP/IP IPX/SPX NETBIOS/NETBUI Client          Ans: Client 7. Which...