Interview Questions

- GPRS provide gross data rate of 22.80 KBPS / time slot
- Voice uses only 13KBPS/ time slot and the rest is consumed by Error Correction Code
- Error connection code is utilized for detecting and correcting the transmission errors
- As voice is compressed, the usage of Error connection code is mandatory

It enables SQL server to address diverse data sources like OLE DB similarly. It allows Remote server access and has the ability to issue distributed queries, updates, commands and transactions.

Bex stands for Business Explorer. Bex enables end user to locate reports, view reports, analyze information and can execute queries. The queries in workbook can be saved to there respective roles in the Bex browser. Bex has the following components: Bex Browser, Bex analyzer, Bex Map, Bex Web.

Bottom Up Approach:

The bottom up approach testing approach is carried out with the help of the test driver. The test driver calls a component to be tested.

The modules in the lower level of call hierarchy are tested independently. Then the next level modules are tested that call previously tested modules. This is done repeatedly until all the modules are included in the testing.

Bottom up testing stops when the top module in the call hierarchy is tested with all lower call hierarchy modules.

Top Down Approach:

The top down approach is carried out with the help of the test stub. Test stub are the dummy programs. The Stub is called from the software component to be tested.

Tests top layer of controlling subsystem first. Then combine modules that are called by the tested modules and test resulted collection of modules.

Do this until all the modules are combined and tested.

The differences in responsibilities are listed below:

- QA is concern for Process Quality and Programmers are concern for Product Quality.

- QA ensure that the processes used for developing the product of high quality where as programmers used these processes so that end product is of good quality.

- Processes are decided by QA. Programmers are supposed to follow the processes so that they can produce a good quality product.

- Any issue found during execution of process by the programmers is communicated to the QA so that they can improve the process.

The address resolution protocol(ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical address of another host on its network by sending a ARP query packet that includes the IP address of the receiver.

The reverse address resolution protocol (RARP) allows a host to discover its Internet address when it knows only its physical address.

The interface org.apache.struts.upload.FormFile is used for the struts file upload application. This interface represents a file that has been uploaded by a client. It is the only interface or class in upload package which is typically referenced directly by a Struts application.

This is not specific to Struts in case of DHTML but the two things that are needed in DHTML page is: first, the form needs to specify an enctype of multipart/form-data and second an <input> form control of type file.

Following are the steps to load file in DHTML:

- Creating a bean

- Writing the ActionClass.

- Mapping the bean in struts-config.xml

- Defining actionmapping

- Developing the DHTML page.

An accounts receivable aging is a report that lists unpaid customer invoices and unused credit memos by date ranges. A typical aging report lists invoices in 30-day "buckets," where the left-most column contains all invoices that are 30 days old or less, the next column contains invoices that are 31-60 days old, the next column contains invoices that are 61-90 days old, and the final column contains all older invoices. The report is sorted by customer name, with all invoices for each customer itemized directly below the customer name, usually sorted by either invoice number or invoice date. A sample report follows, though without the individual invoice detail that is usually found in such a report:

Customer Name 

Total A/R 0-30

Days 31-60

Days 61-90

Days 90+

Days

Abercrombie $15,000 $10,000 $5,000 

Bufford Inc. 29,000 20,000 9,000 

Chesterton Co. 83,000 47,000 21,000 12,000 3,000

Denver Brothers 8,000 8,000

Totals $135,000 $57,000 $46,000 $21,000 $11,000

If the report is generated by an accounting software system (which is usually the case), then you can usually reconfigure the report for different date ranges. For example, if your payment terms are net 15 days, then the date range in the left-most column should only be for the first 15 days. This drops 16-day old invoices into the second column, which highlights that they are now overdue for payment.

The report primarily contains invoices, but it may also contain credit memos that have not been used by customers, or which have not yet been matched against an unpaid invoice.

The aging report is the primary tool used by collections personnel to determine which invoices are overdue for payment, and which therefore require them to contact customers. Given its use as a collection tool, the report may be configured to also contain contact information for each customer.

The aging report is also used as a tool for estimating potential bad debts, which are then used to revise the allowance for doubtful accounts. The usual method for doing so is to derive the historical percentage of invoice dollar amounts in each date range that usually become a bad debt, and apply these percentages to the column totals in the most recent aging report.

An additional use of the aging report is by the credit department, which can view the current payment status of any outstanding invoices to see if customer credit limits should be changed. This is not an ideal use of the report, since the credit department should also review invoices that have already been paid in the recent past. Nonetheless, the report does give a good indication of the near-term financial situation of customers.