Reference no: EM131079477

Question 1. Oracle Database Lite is a(n):

A. DBMS for small handheld computing devices.

B. Internet DBMS.

C. mainframe relational DBMS.

D. DBMS for midrange computers.

Question 2. Microsoft SQL Server is a(n):

A. DBMS for small handheld computing devices.

B. Internet DBMS.

C. desktop relational DBMS.

D. DBMS for midrange computers.

Question 3. In a table for customers, the information about a single customer would reside in a single:

A. field.

B. row.

C. column.

D. table.

Question 4. A field identified in a table as holding the unique identifier of the table's records is called the:

A. primary key.

B. key field.

C. primary field.

D. unique ID.

Question 5. In a relational database, a record is referred to in technical terms as a(n):

A. tuple.

B. row.

C. entity.

D. field.

Question 6. The project operation:

A. combines relational tables to provide the user with more information than is otherwise available.

B. creates a subset consisting of columns in a table.

C. organizes elements into segments.

D. identifies the table from which the columns will be selected.

Question 7. Which of the following database types is useful for storing java applets as well as processing large numbers of transactions?

A. Relational DBMS

B. Hierarchical DBMS

C. Object-relational DBMS

D. OODBMS

Question 8. The type of database management approach that can handle multimedia is the:

A. hierarchical DBMS.

B. relational DBMS.

C. network DBMS.

D. object-oriented DBMS.

Question 9. The data dictionary serves as an important data management tool by:

A. assigning attributes to the data.

B. creating an inventory of data contained in the database.

C. presenting data as end users or business specialists would perceive them.

D. maintaining data in updated form.

Question 10. An automated or manual file that stores information about data elements and data characteristics such as usage, physical representation, ownership, authorization, and security is the:

A. data dictionary.

B. data definition diagram.

C. entity-relationship diagram.

D. relationship dictionary.

Question 11. The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called:

A. multiplexing.

B. packet switching.

C. packet routing.

D. ATM.

Question 12. In TCP/IP, IP is responsible for:

A. disassembling and reassembling of packets during transmission.

B. establishing an Internet connection between two computers.

C. moving packets over the network.

D. sequencing the transfer of packets.

Question 13. Which signal types are represented by a continuous waveform?

A. Digital

B. Optical

C. Laser

D. Analog

Question 14. To use an analog telephone system for sending digital data, you must use:

A. twisted wire.

B. a router.

C. DSL.

D. a modem.

Question 15. Which type of network treats all processors equally, and allows peripheral devices to be shared without going to a separate server?

A. Peer-to-peer

B. Wireless

C. LAN

D. Ring

Question 16. All network components connect to a single hub in a __________ network.

A. bus

B. star

C. domain

D. peer-to-peer

Question 17. The most common Ethernet topology is:

A. ring.

B. star.

C. bus.

D. mesh.

Question 18. __________ work(s) by using radio waves to communicate with radio antennas placed within adjacent geographic areas.

A. Cell phones

B. Microwaves

C. Satellites

D. WANs

Question 19. Digital subscriber lines:

A. have up to twenty-four 64-Kbps channels.

B. operate over coaxial lines to deliver Internet access.

C. are very-high-speed data lines typically leased from long-distance telephone companies.

D. operate over existing telephone lines to carry voice, data, and video.

Question 20. Which protocol is the Internet based on?

A. FTP

B. TCP/IP

C. Packet-switching

D. HTTP