- A clustered index is a special type of index that reorders the way records in the table are physically stored. Therefore table can have only one clustered index. The leaf nodes of a clustered index contain the data pages.

- A non clustered index is a special type of index in which the logical order of the index does not match the physical stored order of the rows on disk. The leaf node of a non clustered index does not consist of the data pages. Instead, the leaf nodes contain index rows.

- A clustered index is a special type of index that reorders the way records in the table are physically stored. Therefore table can have only one clustered index.

- A non clustered index is a special type of index in which the logical order of the index does not match the physical stored order of the rows on disk. The leaf node of a non clustered index does not consist of the data pages. Instead, the leaf nodes contain index rows.

The terms Billable and Non-Billable expenses are normally associated with say a consultancy company where they bill consultants out to their clients. Therefore Billable expenses will be paid by the client whereas Non-billable will be paid by your employer. What's included in both is subject to the contract your company has with their client.

To ensure that debts taken are repaid promptly, the customer's requirements and future prospects ought to be studied and their work constantly checked. Thus, both the courses follow.

1. ANSWER : 2  

Explanation -  Compare the respective pass percentage for three years : 2000, 2001 and 2002   

= (140 x 100)/170 < (150 x 100)/180 and (150 x 100)/180 > (160 x 100)/200

 = 82.35% < 83.33% and 83.33% > 80%

2. ANSWER : 3  

Explanation -  Total percentage of students who succeeded in at least one of three exams in 2000 = (140 x 100)/170= 82.35 %   

3. ANSWER : 2  

Explanation -  Total percentage increase in the number of students in 2002 over 2000 is = (30 x 100)/170 =17.64 %  

4. ANSWER : 4  

Explanation -  Total percentage of students who cleared CAT in 2000 =(20 x 100)/170 = 11.76 %

Answer : C

Explanation:

FrameRelay, ATM, and X.25 are non-broadcast multiple access (NBMA) networks. NBMA networks allow only data transfer from one computer to another over a VC or across a switching device. NBMA networks do not support multicast or broadcast traffic

A non-po is an invoice which does not have po(purchase order).However, these invoices requires approval for authorized person/persons to process for payment.