Quiz Discussion

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

Which of the following is used to provide delete authorization to instructor?

• 1]

  CREATE ROLE instructor ;
  GRANT DELETE TO instructor;

   

• 2]

  CREATE ROLE instructor;
  GRANT SELECT ON takes
  TO instructor;

   

• 3]

  CREATE ROLE instructor;
  GRANT DELETE ON takes
  TO instructor;

   

• 4]

  All of the mentioned

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

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

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

CREATE TABLE employee (name VARCHAR, id INTEGER)

What type of statement is this?

• 1]

  DML

• 2]

  DDL

• 3]

  View

• 4]

  Integrity constraint

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

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;

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

• 1]

  Operator of operating system

• 2]

  Administrator

• 3]

  Super user

• 4]

  All of the mentioned

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