Tag: programming languages

Questions Related to programming languages

What are the advantages of using a PACKAGE?
technology programming languages

  1. Avoid having to bind a large number of DBRM members into a plan

  2. Minimize fallback complexities if changes result in an error

  3. Avoid cost of a large bind

  4. Time consumption is reduced

Show answer
Correct Option: D

The actual call to access the database will be done by calling
technology programming languages

  1. CBLTDLI

  2. PLITDLI

  3. Only a

  4. A or b

Show answer
Correct Option: D
Explanation:

To answer this question, the user needs to have knowledge of database access methods.

The correct answer is:

D. A or B

Explanation:

CBLTDLI and PLITDLI are both programming interfaces for accessing databases. CBLTDLI is a COBOL interface, and PLITDLI is a PL/I interface. Both interfaces are used to submit commands and retrieve data from databases. Therefore, either option A or option B can be used to access the database. Option C is incorrect because only option A or B can be used to access the database, not just option A.

Which one is not a type of VSAM file?

technology programming languages

  1. KSDS

  2. ESDS

  3. RSDS

  4. RRDS

Show answer
Correct Option: C
Explanation:

To solve this question, the user needs to have knowledge about VSAM files and their types.

Now, let's go through each option and explain why it is right or wrong:

A. KSDS: This option is a type of VSAM file. KSDS stands for Key Sequenced Data Set and is used to store records in a sequential order based on a primary key.

B. ESDS: This option is a type of VSAM file. ESDS stands for Entry Sequenced Data Set and is used to store records in the order in which they are written to the file.

C. RSDS: This option is not a type of VSAM file. RSDS is not a valid acronym for a VSAM file type.

D. RRDS: This option is a type of VSAM file. RRDS stands for Relative Record Data Set and is used to store records based on relative byte positions within the file.

Therefore, the answer is: C

What is S0C4 error?

technology programming languages

  1. Caused by invalid Data in a Numeric field

  2. Protection Exception

  3. Timeout

  4. Data protection Exception

Show answer
Correct Option: B

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) Caused by invalid Data in a Numeric field - This option is incorrect. The S0C4 error is not caused by invalid data in a numeric field. Instead, it is related to a protection exception.

Option B) Protection Exception - This option is correct. The S0C4 error is a protection exception error. It occurs when a program attempts to access storage that it does not have permission to access. This can happen due to various reasons such as accessing an uninitialized variable or accessing memory outside the program's allocated storage.

Option C) Timeout - This option is incorrect. The S0C4 error is not related to a timeout. It is specifically related to a protection exception.

Option D) Data protection Exception - This option is incorrect. The S0C4 error is related to a protection exception, but it is not specifically called a "Data Protection Exception."

The correct answer is B) Protection Exception. This option is correct because the S0C4 error is a protection exception error.

What the below command does? echo var=$
technology programming languages

  1. Assigns value of < to var variable

  2. Assigns value of $< to var variable

  3. Gets input from stdin and assigns that to var variable

  4. Assigns previously returned value to var variable

Show answer
Correct Option: C

Assume that the .login/.profile file has the following command umask 27 What is the permission set upon creating a new file?
technology programming languages

  1. -rwx--x---

  2. -rw--wx-wx

  3. -----w-rwx

  4. -rw-r-----

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Correct Option: D

What is the difference between $* and $@?

technology programming languages

  1. $* returns the number of arguments passed whereas $@ represents the arguments list.

  2. All arguments are double quoted using $* whereas all arguments are individually double quoted when using $@.

  3. $* is used in for loop whereas $@ is used in while loop.

  4. $* and $@ are same

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Correct Option: B

What does $! represent?
technology programming languages

  1. Process ID of current process

  2. Process ID of last background process

  3. Process ID of first background process

  4. Process ID of foreground process

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Correct Option: B

What is the output of the below command? a=2;(a=3; echo -n $a) ; echo -n $a
technology programming languages

  1. 33

  2. 22

  3. 32

  4. none

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Correct Option: C

What does the below line does when inserted as first line in a shell script and executed? #! /usr/bin/bash -f
technology programming languages

  1. bash is used to intrepret the script and it does not invoke .bashrc before executing the script

  2. bash is used to intrepret the script and it does invoke .bashrc before executing the script

  3. bash as well as sh are used to intrepret the script

  4. none

Show answer
Correct Option: A