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Sandhya
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Computers in a network communicate through ____. Answer tokens messages notes

Resolved Question:

Computers in a network communicate through ____.
Answer
tokens
messages
notes
letters
2 points
Question 29

Data about the data in a database is known as ____.
Answer
backup
hyperdata
metadata
rollback
2 points
Question 30

In a PC-based DBMS, as long as one program has a row or table locked, no other program may access that row or table.
Answer True
False
2 points
Question 31

Which of the following DBMS evaluation categories does the following question relate to: XXXXX XXXXX the unit that may be locked and are exclusive locks the only ones permitted?
Answer
Concurrent update
Data recovery
Data dictionary
Security
2 points
Question 32

When a centralized database becomes unavailable for any reason, no users can continue processing. In contrast, if a local database in a distributed database becomes unavailable, only users who need that data are affected. Because of this, distributed databases have a(n) ____ advantage over a centralized database.
Answer
local control of data
increasing database capacity
system availability
added efficiency
2 points
Question 33

Combining the following two tables would result in ____.
Employee (EmployeeNum, LastName, FirstName, WageRate, SocSecNum, DepartmentNum)
Employee (EmployeeNum, LastName, FirstName, Street, City, State, Zip)
Answer
Employee (EmployeeNum, LastName, FirstName, WageRate, SocSecNum, DepartmentNum, (Street, City, Zip) )
Employee (EmployeeNum, LastName, FirstName, WageRate, SocSecNum, DepartmentNum, Street, City, State, Zip)
Employee (EmployeeNum, LastName, FirstName, Street, City State, Zip, WageRate, SocSecNum)
Employee (EmployeeNum, LastName, FirstName, WageRate, SocSecNum, DepartmentNum, EmployeeNum, LastName, FirstName, Street, City, State, Zip )
2 points
Question 34

Because the clients and the server perform different functions and can run two different operating systems, there is an arrangement of client/server architecture known as ____.
Answer
single-tier architecture
two-tier architecture
three-tier architecture
four-tier architecture
2 points
Question 35

When provided with a user view or some sort of stated requirement, you must develop a collection of tables that will support it.
Answer True
False
2 points
Question 36

Convert the following table to first normal form:
Branch (BranchNum, BranchName, (BookCode, Title, OnHand) )
Answer
Branch (BranchNum, BranchName)
Book (BookCode, Title)
Branch (BranchNum, BranchName)
Book (BookCode, Title)
Branch (BranchNum, BranchName, BookCode, Title, OnHand )
2 points
Question 37

Additional disk and memory space are not required to store timestamp values.
Answer True
False
2 points
Question 38

Which of the following DBMS evaluation categories does the following question relate to: XXXXX XXXXX operating system and hardware is the DBMS supported?
Answer
Concurrent update
Security
Integrity
Limitations
2 points
Question 39

When a company decides to purchase a new DBMS, the CEO leads the DBMS evaluation and selection effort.
Answer True
False
2 points
Question 40

SQL is an example of a nonprocedural language.
Answer True
False
2 points
Question 41

The site that initiates the update in a two-phase commit is known as the ____.
Answer
director
initiator
coordinator
leader
2 points
Question 42

The ____ determines the access privileges for all users and enters the appropriate authorization rules in the DBMS catalog to ensure that users access the database only in ways in which they are entitled to do so.
Answer
CEO
programmer
DBA
IT manager
2 points
Question 43

When computers at one site need to be connected with computers at another site, the connection must be within a ____.
Answer
room
building
network
combination
2 points
Question 44

In a DDBMS, the site where the user is located is called the remote site.
Answer True
False
2 points
Question 45

The ____ establishes the naming conventions for tables, fields, and indexes in the data dictionary.
Answer
users
DBMS
DBA
programmers
2 points
Question 46

Which of the following DBMS evaluation categories does the following question relate to: XXXXX XXXXX vendor of the DBMS supply printed or online training manuals and how good are the manuals?
Answer
Portability
Performance
Cost
Documentation and training
2 points
Question 47

The crucial issue in making the determination between a single many-to-many-to-many relationship and two (or three) many-to-many relationships is the ____.
Answer
independence
data dependence
redundancy
cardinality
2 points
Question 48

A ____ is a place where a record of certain corporate data is kept.
Answer
depository
data archive
storage
data bank
2 points
Question 49

____ rules specify which users have what type of access to which data in the database.
Answer
Encryption
Authentication
Authorization
View
2 points
Ques
Submitted: 4 years ago.
Category: Homework
Expert:  Sandhya replied 4 years ago.
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Customer: replied 4 years ago.
I'm sorry but i was in a time crunch. I submitted the questions and proceded myself. By the time I received your correspondence, i was well into the open-book quiz. It was much easier than i thought
Expert:  Sandhya replied 4 years ago.

Okay, Let me know if you need any help in future.

Thanks

Customer: replied 4 years ago.
Of course. I've got summer classes.