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    "Q1. Why is SQL such a good database language?\n",
    "\n",
    "  It is easy to use   SQL is highly popular because it offers advantages   SQL queries can be optimized   SQL allows users to describe the data   SQL is a structured query language   C and D\n",
    "\n",
    "Q2. In slowly changing dimensions,Type 2 and Type 3 keep historic records of the changed data?\n",
    "\n",
    "  True   False\n",
    "\n",
    "Q3. Measures are linked to dimension tables through?\n",
    "\n",
    "  Primary key   Unique keys   Foreign keys   Surrogate keys   None of the above\n",
    "\n",
    "Q4. No level of redundancy is required for a perfect database.\n",
    "\n",
    "  False   True\n",
    "\n",
    "Q5. Primary key on a table will automatically create a clustered index on that table.\n",
    "\n",
    "  True   False\n",
    "\n",
    "Q6. You can have many_____keys on a table but only one_____key\n",
    "\n",
    "  Primary key , unique key   Foriegn keys ,primary keys   Foreign key ,unique key   Unique key , primary key"
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