Question 1

Systems support is the on-going technical support for users, as well as the maintenance required to fix any errors, omissions or new requirements that may arise.

Accepted Answer

Systems support involves providing technical assistance to users and maintaining the system to address any issues or new requirements.

Question 2

Systems operation is the on-going technical support for users, as well as the maintenance required to fix any errors, omissions or new requirements that may arise.

Accepted Answer

False

Question 3

Program libraries store the actual application programs that have been placed into production.

Accepted Answer

True

Question 4

The central repository stores all system models and detailed specifications.

Accepted Answer

The central repository is designed to store all system models and detailed specifications to ensure consistency and accessibility for development and maintenance.

Question 5

The four types of systems support activities are building and testing networks and databases, preparing the conversion plan, installing databases, and training users.

Accepted Answer

The four types of systems support activities typically include system maintenance, system recovery, system enhancement, and system support, not the activities listed in the statement.

Question 6

The first task of the systems analyst or programmer when working with a program bug is to validate the problem.

Accepted Answer

The first step in debugging is to confirm that the problem exists and can be reproduced, ensuring that the issue is not due to user error or misinterpretation.

Question 7

System testing ensures that the stand-alone program not only fixes the bug, but does so without side effects.

Accepted Answer

System testing ensures that the entire system, including the stand-alone program, works as expected without side effects.

Question 8

Unit testing ensures that the entire application, of which the modified program was a part, still works.

Accepted Answer

Unit testing focuses on testing individual components or units of a program for correctness, not the entire application. Integration or system testing is used to ensure the entire application works as expected.

Question 9

Regression testing extrapolates the impact of the changes on program and application throughput and response time from the before and after results using the test data.

Accepted Answer

Regression testing verifies that changes to a program or application do not introduce new errors or affect existing functionality. It does not extrapolate the impact of changes on program and application throughput and response time.

Question 10

Version control is the process whereby a librarian (usually software-based) keeps track of changes made to programs thus allowing recovery of prior versions of the programs in the event that new versions cause unexpected problems.

Accepted Answer

Version control systems track changes to files, allowing recovery of previous versions, and are often used in software development to manage code changes.

Question 11

The central repository stores the actual application programs that have been placed into production.

Accepted Answer

The central repository typically stores metadata, documentation, and configuration information, not the actual application programs.

Question 12

In most installations a software-based librarian will track changes to stored programs and maintain several previous versions of the programs.

Accepted Answer

Software-based librarians, often part of version control systems, are designed to track changes and maintain multiple versions of programs to manage updates and rollbacks efficiently.

Question 13

The high cost of system maintenance is largely due to failure to update system knowledge (in the repository) and program source code documentation (in the program library).

Accepted Answer

Failure to update system knowledge and program source code documentation can lead to increased maintenance costs due to difficulties in understanding and modifying the system.

Question 14

If a system crash occurs in the middle of a transaction, then any transactional updates to the database the occurred before the crash must be undone. This is called a roll back.

Accepted Answer

In the event of a system crash, a rollback is performed to maintain database consistency by undoing any incomplete transactions, ensuring that the database is returned to its last consistent state.

Question 15

Cycle complexity is an example of software metrics.

Accepted Answer

Cycle complexity, often referred to as cyclomatic complexity, is a software metric used to measure the complexity of a program's control flow.

Question 16

Code slicing cuts out a piece of a program to create a separate program or subprogram.

Accepted Answer

Code slicing involves extracting a portion of a program to analyze or modify it independently, often for debugging or understanding purposes.

Question 17

Code slicing is relatively easy to do.

Accepted Answer

Code slicing can be complex due to dependencies, context, and the need to understand the entire codebase to accurately extract relevant parts.

Question 18

Poor maintenance can cause program understanding can take considerable time.

Accepted Answer

Poor maintenance can lead to code that is difficult to read and understand, which increases the time required for program comprehension.

Question 19

Usually the original programmer of the software is the person making the changes.

Accepted Answer

Software maintenance and updates are often handled by different developers or teams, not necessarily the original programmer, especially in larger projects or organizations.

Question 20

Systems operation and support occur in parallel.

Accepted Answer

Systems operation and support often occur simultaneously as the system is used and maintained, ensuring it functions correctly and efficiently.

Quiz 20: Systems Operations and Support