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karthi_ind

Active User

Joined: 24 Feb 2004
Posts: 131
Location: Chennai

 Posted: Sat May 08, 2004 11:30 am    Post subject: About SMS, RBA and Collating Seq There r interview questions Plz dont say "See n book" Plz answer 1) What is Collating Sequence? 2) What is low-values and high-values in Figurative constants? 3) What is variable length and Fixed length records? 4) What is JES2 & JES3? 5) What is SMS? 6) Why Picture clause should not specify in comp1 and comp2? 7) What is RBA? Plz answer these questions. URs karthi G.

mcmillan

Joined: 18 May 2003
Posts: 1200
Location: India

Posted: Fri Jun 04, 2004 11:12 pm    Post subject: Re: Interview Questions(Plz Answer)

 karthi_ind wrote: 1) What is Collating Sequence?

It's the sequence of a system which decides the equivalent numeric value for each character typed in keyboard and also the procedence b/w characters.

In PC, ASCII is the default collating, while in Mainframe EBCDIC is the default. [/quote]

 Quote: 2) What is low-values and high-values in Figurative constants?

HGH-VALUES refers the highest value in collating sequence (X'FF'). Low calue refers the lowest value in collating sequence. (x'00')

 Quote: 3) What is variable length and Fixed length records?

If you know the size at declaration, you can say it as a fixed length table. Variable length tables vary in size depending on the value of another variable.

[quote]4) What is JES2 & JES3?
[quote]

Job Entry Subsystem 2 & 3

 Quote: 5) What is SMS?

Storage management SubSystem

 Quote: 6) Why Picture clause should not specify in comp1 and comp2?

The use of Picture clause is to specify the type, size and format. But for Comp-1 & 2, the size is 4B & 8B respectively. The type is Hexadecimal in floating point. The format is +0.9999E+99. If you know the size, type & format, then there is no need to specify.

 Quote: 7) What is RBA?