INF3703 EXAM PACK.
100% CORRECT Q AND A.
Contents
MAY JUNE 2013 ....................................................................................................................................... 3
QUESTION 1 .....................................................................................
, Fragmentation Transparency .............................................................................................................. 40
Replication Transparency .................................................................................................................. 40
Question 5 .........................................................................................................................................41
OCTOBER NOVEMBER 2017 ...................................................................................................................43
Question 1 .........................................................................................................................................43
Question 3 .........................................................................................................................................47
Question 4 .........................................................................................................................................49
Question 5 .........................................................................................................................................50
MAY JUNE 2018 .....................................................................................................................................53
Question 1 .........................................................................................................................................53
QUESTION 2 ......................................................................................................................................54
Question 3 .........................................................................................................................................56
Question 4 .........................................................................................................................................58
Question 5 .........................................................................................................................................60
Question 6 .........................................................................................................................................69
Question 7 .........................................................................................................................................72
AUI3703 MAY JUNE 2019 SOLUTIONS ....................................................................................................76
, MAY JUNE 2013
QUESTION 1
1.1 F security is a disadvantage of DDBMS.
1.2 F all remote transactions or request access data at a single site.
1.3 F The label stateless system indicates that the web server do not know the status of its
clients at any given time.
1.4 T
1.5 F An enterprise database do not provide all the support for expected future operations.
1.6 F A computerized DBMS that is not properly designed cannot generate best solutions
required by managers .
1.7 F Atomicity states that all transactions must be successfully completed or aborted.
1.8 F As long as it is read-read only.
1.9 T
1.10 T
QUESTION 2
2.1
A database transaction is formed by one or more database requests. Each database request
is the equivalent of a single SQL statement. The basic difference between a local
transaction and a distributed transaction is that the latter can update or request data from
several remote sites on a network. In a DDBMS, a database request and a database
transaction can be of two types: remote or distributed.
A remote request accesses data located at a single remote database processor (or DP
site). In other words, an SQL statement (or request) can reference data at only one remote
DP site.
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