Question 1

____________ is an architecture that supports electronic commerce among organizations.A set of related Internet standards supports high interoperability among service requestors,service providers,and service registries.

Accepted Answer

The answer of ____________ is an architecture that supports electronic...

Question 2

Intranets differ from the Internet in that they do not use TCP or IP protocols to communicate.

Accepted Answer

A) True 
 B)False

Question 3

In the Web Services Architecture,the WSFL,UDDI,WSDL,and SOAP standards are ________ compliant languages.

Accepted Answer

The answer of In the Web Services Architecture,the WSFL,UDDI,WSDL,and SOAP...

Question 4

A SQL query with local format transparency needs to specify:

Accepted Answer

A)  Fragments 
B)  Locations 
C)  Fragments and locations 
D)  Local formats

Question 5

The two-phase commit protocol involves a voting phase and a decision phase which must be coordinated by a centralized coordinator site.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is not a goal of distributed data?

Accepted Answer

A)  Decreased communication costs 
B)  Increased corporate control over data 
C)  Increased data availability 
D)  Increased performance

Question 7

In client-server database development,proprietary methods typically allow for easier resolution of problems because one vendor is responsible,but these methods may prove to be expensive and inflexible in the long run.

Accepted Answer

A) True 
 B)False

Question 8

When the primary copy protocol is used for replicated data,secondary copies are updated at the same time as the primary copy to keep the database consistent.

Accepted Answer

A) True 
 B)False

Question 9

Fragmentation transparency requires the least effort from the user to write SQL commands for a specific task,but requires the most work for the DBMS.

Accepted Answer

A) True 
 B)False

Question 10

The following features permitted distributed processing in the 1980s:

Accepted Answer

A)  Support for high-speed data transfer by local area networks 
B)  Support for graphical interfaces by personal computers 
C)  File sharing 
D)  All of the above

Question 11

_________ code is code to ensure completion of business processes.____________ code may route forms,send messages about a deadline,and notify users when a business process is completed.

Accepted Answer

The answer of _________ code is code to ensure completion...

Question 12

Which of the following is true of a fragment in a distributed DBMS?

Accepted Answer

A)  It may contain specific rows of a table 
B)  It may contain specific columns of a given table 
C)  It may be replicated at several sites 
D)  All of the above

Question 13

PC clients in a two-tier architecture are sometimes called "thin clients" because of the large amount of business logic they contain.

Accepted Answer

A) True 
 B)False

Question 14

Distributed DBMSs must conform to the Three Schema Architecture just like traditional DBMSs do.

Accepted Answer

A) True 
 B)False

Question 15

_____________________ is the highest level of data independence in distributed DBMSs,and is so transparent that users perceive the distributed database as a centralized database.

Accepted Answer

The answer of _____________________ is the highest level of data...

Question 16

The interoperability among clients and servers and the efficient processing of messages between them is referred to in a client-server architecture as ___________________.

Accepted Answer

The answer of The interoperability among clients and servers and...

Exam 17: Client-Server Processing and Distributed Databases

____________ is an architecture that supports electronic commerce among organizations.A set of related Internet standards supports high interoperability among service requestors,service providers,and service registries.

Intranets differ from the Internet in that they do not use TCP or IP protocols to communicate.

In the Web Services Architecture,the WSFL,UDDI,WSDL,and SOAP standards are ________ compliant languages.

A SQL query with local format transparency needs to specify:

The two-phase commit protocol involves a voting phase and a decision phase which must be coordinated by a centralized coordinator site.

Which of the following is not a goal of distributed data?

In client-server database development,proprietary methods typically allow for easier resolution of problems because one vendor is responsible,but these methods may prove to be expensive and inflexible in the long run.

When the primary copy protocol is used for replicated data,secondary copies are updated at the same time as the primary copy to keep the database consistent.

Fragmentation transparency requires the least effort from the user to write SQL commands for a specific task,but requires the most work for the DBMS.

The following features permitted distributed processing in the 1980s:

_ code is code to ensure completion of business processes.____ code may route forms,send messages about a deadline,and notify users when a business process is completed.

Which of the following is true of a fragment in a distributed DBMS?

PC clients in a two-tier architecture are sometimes called "thin clients" because of the large amount of business logic they contain.

Distributed DBMSs must conform to the Three Schema Architecture just like traditional DBMSs do.

_____________________ is the highest level of data independence in distributed DBMSs,and is so transparent that users perceive the distributed database as a centralized database.

The interoperability among clients and servers and the efficient processing of messages between them is referred to in a client-server architecture as ___________________.