WGU D684 OA Questions and Correct Answers |
New Update 2026/2027 | Graded A+
1. What is a key feature of sequential file access?
Records can be accessed in any order.
Taken by: BRYANT24KOBE
Score
Files are divided into variable-length records.
The file is seen as a linear structure with no random access.
The file pointer can jump to any record instantly.
2. If a computer's memory unit fails, what impact would this have on the system's
performance?
The system would continue to function normally, but with slower performance.
The system would be unable to store or retrieve data and instructions, leading
to failure in executing programs.
The system would only affect the graphics rendering capabilities.
The system would run faster due to reduced data processing requirements.
3. Interpret the logic of the provided code snippet and explain what it checks.
The code checks if myNum is greater than 0 and prints 'Here' if true, otherwise
it prints 'There'.
The code checks if myNum is equal to 0 and prints 'Here' if true, otherwise it
prints 'There'.
, The code checks if myNum is not equal to 0 and prints 'There' if true,
otherwise it prints 'Here'.
The code checks if myNum is less than 0 and prints 'There' if true, otherwise it
prints 'Here'.
4. Which type of computer is generally recognized as having the highest cost due to its
capabilities?
Tablet
Server
Desktop computer
Laptop computer
5. Describe the role of a repeater in a computer network and how it differs from other
networking devices.
A repeater amplifies and regenerates signals to extend the range of a network,
unlike routers which direct traffic between networks.
A repeater is used for data storage, while a hub connects multiple devices.
A repeater converts signals from one format to another, while a modem
connects to the internet.
A repeater connects devices without amplifying signals, while switches
manage data traffic.
6. How many stars does the sample code print when executed?
, 26 stars
23 stars
27 stars
25 stars
7. Describe the role of the memory unit in the von Neumann architecture.
The memory unit processes graphics for display on the screen.
The memory unit stores both data and instructions that the CPU needs to
execute programs.
The memory unit manages the flow of data between the CPU and input/output
devices.
The memory unit is responsible for executing arithmetic operations.
8. Describe the significance of the 'put the program into production' step in the
software development lifecycle.
This step is about planning the logic of the application.
This step involves deploying the application for end-users, making it available
for use.
This step is concerned with translating the code into machine language.
This step focuses on writing the code for the application.
9. Describe the operation performed by the expression e // d when e is 19 and d is 2.
The expression e // d performs integer division, yielding the largest integer less
than or equal to the result.
, The expression e // d calculates the average of e and d.
The expression e // d returns the remainder of e divided by d.
The expression e // d adds e and d together.
10. What type of collection is described as having a varying length and allowing for easy
access, insertion, and removal of items?
A group in which individual elements are accessed from the same end that is
called the top
A varying-length, ordered collection of homogeneous items that allows for
easy access, insertion, and removal
A group of related attributes stored as individual fields under a single name
and treated as a single concept
A fixed-length collection of homogeneous items that can each be accessed by
its position
11. Interpret the significance of the ACM Code of Ethics in guiding technology
companies' resource usage.
The ACM Code of Ethics emphasizes that companies should access resources
only for the public good, ensuring ethical use of technology.
The ACM Code of Ethics requires companies to hire only from within their
organization.
The ACM Code of Ethics encourages companies to develop proprietary
software exclusively.
The ACM Code of Ethics allows companies to prioritize profit over ethical
considerations.
New Update 2026/2027 | Graded A+
1. What is a key feature of sequential file access?
Records can be accessed in any order.
Taken by: BRYANT24KOBE
Score
Files are divided into variable-length records.
The file is seen as a linear structure with no random access.
The file pointer can jump to any record instantly.
2. If a computer's memory unit fails, what impact would this have on the system's
performance?
The system would continue to function normally, but with slower performance.
The system would be unable to store or retrieve data and instructions, leading
to failure in executing programs.
The system would only affect the graphics rendering capabilities.
The system would run faster due to reduced data processing requirements.
3. Interpret the logic of the provided code snippet and explain what it checks.
The code checks if myNum is greater than 0 and prints 'Here' if true, otherwise
it prints 'There'.
The code checks if myNum is equal to 0 and prints 'Here' if true, otherwise it
prints 'There'.
, The code checks if myNum is not equal to 0 and prints 'There' if true,
otherwise it prints 'Here'.
The code checks if myNum is less than 0 and prints 'There' if true, otherwise it
prints 'Here'.
4. Which type of computer is generally recognized as having the highest cost due to its
capabilities?
Tablet
Server
Desktop computer
Laptop computer
5. Describe the role of a repeater in a computer network and how it differs from other
networking devices.
A repeater amplifies and regenerates signals to extend the range of a network,
unlike routers which direct traffic between networks.
A repeater is used for data storage, while a hub connects multiple devices.
A repeater converts signals from one format to another, while a modem
connects to the internet.
A repeater connects devices without amplifying signals, while switches
manage data traffic.
6. How many stars does the sample code print when executed?
, 26 stars
23 stars
27 stars
25 stars
7. Describe the role of the memory unit in the von Neumann architecture.
The memory unit processes graphics for display on the screen.
The memory unit stores both data and instructions that the CPU needs to
execute programs.
The memory unit manages the flow of data between the CPU and input/output
devices.
The memory unit is responsible for executing arithmetic operations.
8. Describe the significance of the 'put the program into production' step in the
software development lifecycle.
This step is about planning the logic of the application.
This step involves deploying the application for end-users, making it available
for use.
This step is concerned with translating the code into machine language.
This step focuses on writing the code for the application.
9. Describe the operation performed by the expression e // d when e is 19 and d is 2.
The expression e // d performs integer division, yielding the largest integer less
than or equal to the result.
, The expression e // d calculates the average of e and d.
The expression e // d returns the remainder of e divided by d.
The expression e // d adds e and d together.
10. What type of collection is described as having a varying length and allowing for easy
access, insertion, and removal of items?
A group in which individual elements are accessed from the same end that is
called the top
A varying-length, ordered collection of homogeneous items that allows for
easy access, insertion, and removal
A group of related attributes stored as individual fields under a single name
and treated as a single concept
A fixed-length collection of homogeneous items that can each be accessed by
its position
11. Interpret the significance of the ACM Code of Ethics in guiding technology
companies' resource usage.
The ACM Code of Ethics emphasizes that companies should access resources
only for the public good, ensuring ethical use of technology.
The ACM Code of Ethics requires companies to hire only from within their
organization.
The ACM Code of Ethics encourages companies to develop proprietary
software exclusively.
The ACM Code of Ethics allows companies to prioritize profit over ethical
considerations.
