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 Technology Questions

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Q:

How do you check the syntax of a JCL without running it?

Answer

TYPERUN=SCAN on the JOB card or use JSCAN.


TYPERUN=HOLD on the job card.


it is used for syntatical checks and direct job to spool and hold it.

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Subject: Mainframe Interview

3 7626
Q:

Which among the following are not access Specifiers in C++?

A) Public B) Protected
C) Default D) Private
 
Answer & Explanation Answer: C) Default

Explanation:

Default is the access specifier in java not in C++

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Filed Under: C++

4 7625
Q:

What’s the difference between md5( ), crc32( ) and sha1( ) crypto on PHP?

Answer The major difference is the length of the hash generated. CRC32 is, evidently, 32 bits, while sha1() returns a 128 bit value, and md5() returns a 160 bit value. This is important when avoiding collisions.
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Subject: PHP

1 7574
Q:

How to handle error in the destructor?

A) throwing B) terminate
C) both a & b D) none of the mentioned
 
Answer & Explanation Answer: B) terminate

Explanation:

It will not throw an exception from the destructor but it will the process by using terminate() function.

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Filed Under: C++

3 7493
Q:

How many ways are there to initialize int with a constant?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:

There are two formats for initializers in C++ as shown in the example that follows. The first format uses the traditional C notation. The second format uses constructor notation.

int foo = 123;

 

int bar (123);

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Filed Under: C++
Job Role: Software Architect

1 7437
Q:

What is SQL*Plus? Explain its features

Answer

SQL*plus allows SQL and PL/SQL scripts to interactively run in command line.

It allows three kinds of commands to run; SQL, PL/SQL and SQL * Plus commands. It’s most commonly used by DBA’s to interact with the oracle database.

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Subject: Oracle

9 7357
Q:

List the steps involved in creating the checksum.

Answer

- Divide the data into sections


- Add the sections together using 1's complement arithmetic


- Take the complement of the final sum, this is the check sum

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Subject: Network Administration

4 7346
Q:

How many types of macros are there in c++?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:

There are two types of macros. They are object-like and function-like.

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Filed Under: C++

1 7322