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Quiz Discussion

The database administrator who authorizes all the new users, modifies the database and takes grants privilege is

Course Name: SQL -Structured Query Language

1]
Operator of operating system
2]
Administrator
3]
Super user
4]
All of the mentioned

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#	Quiz
1 Discuss	Which of the following statement is used to remove the privilege from the user Amir? 1] Remove update on department from Amir 2] Revoke update on employee from Amir 3] Delete select on department from Raj 4] Grant update on employee from Amir Solution
10 Discuss	In the authorization graph, if DBA provides authorization to u1 which in turn gives to u2 which of the following is correct? 1] If DBA revokes authorization from u1 then u2 authorization is also revoked 2] If u1 revokes authorization from u2 then u2 authorization is revoked 3] If DBA & u1 revokes authorization from u1 then u2 authorization is also revoked 4] If u2 revokes authorization then u1 authorization is revoked Solution
2 Discuss	Which of the following is used to provide privilege to only a particular attribute? 1] Grant update(budget,salary,Rate) on department to Raj 2] Grant update(budget) on department to Raj 3] Grant select on employee to Amit 4] Grant delete to Amit Solution
3 Discuss	To remove a relation from an SQL database, we use the ______ command. 1] Delete 2] Purge 3] Remove 4] Drop table Solution
4 Discuss	If we wish to grant a privilege and to allow the recipient to pass the privilege on to other users, we append the __________ clause to the appropriate grant command. 1] With grant 2] Grant user 3] Grant pass privilege 4] With grant option Solution
5 Discuss	Which one of the following provides the ability to query information from the database and to insert tuples into, delete tuples from, and modify tuples in the database? 1] DML(Data Manipulation Langauge) 2] DDL(Data Definition Langauge) 3] Query 4] Relational Schema Solution
6 Discuss	Which of the following is true regarding views? 1] The user who creates a view cannot be given update authorization on a view without having update authorization on the relations used to define the view 2] The user who creates a view cannot be given update authorization on a view without having update authorization on the relations used to define the view 3] If a user creates a view on which no authorization can be granted, the system will allow the view creation request 4] A user who creates a view receives all privileges on that view Solution
7 Discuss	An attribute A of datatype varchar(20) has the value “Avi”. The attribute B of datatype char(20) has value ”Reed”. Here attribute A has ____ spaces and attribute B has ____ spaces. 1] 3, 20 2] 20, 4 3] 20, 20 4] 3, 4 Solution
8 Discuss	Which of the following is used to avoid cascading of authorizations from the user? 1] Granted by the current role 2] Revoke select on the department from Amit, Satoshi restrict; 3] Revoke grant option for select on the department from Amit; 4] Revoke select on the department from Amit, Satoshi cascade; Solution
9 Discuss	`INSERT INTO instructor VALUES (10211, ’Smith’, ’Biology’, 66000);` What type of statement is this? 1] Query 2] DML 3] Relational 4] DDL Solution
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