GAQM CITM-001 Certified Information Technology Manager Exam CITM Exam Practice Test

Answer : A

Multiprocessing is a feature that supports more than one processor in a computer system.It allows multiple processes to run concurrently on multiple CPUs (or cores), thus increasing the performance and throughput of the system12.Multiprocessing can be achieved by using either multiple physical processors or a single processor with multiple cores3.Multiprocessing can also be classified into symmetric multiprocessing (SMP) and asymmetric multiprocessing (AMP), depending on how the processors are coordinated and share resources4.

Multiprocessing is different from other features such as multiprogramming, multitasking, and multithreading.Multiprogramming is the ability of an operating system to keep multiple programs in the main memory at the same time, ready for execution5.Multitasking is the ability of an operating system to switch between multiple tasks (applications) on a single CPU, giving the illusion of parallelism6.Multithreading is the ability of an application to create multiple threads of execution within a single task, sharing the same memory space and resources7.These features aim to maximize the utilization of CPU and memory, but they do not require more than one processor.Reference:1: CITM Study Guide, Chapter 2: Computer Architecture, Page 24-25.2:Multiprocessing3:What is Multiprocessing?4:Symmetric vs. Asymmetric Multiprocessing: What's the Difference?5: CITM Study Guide, Chapter 1: Operating Systems, Page 9.6: CITM Study Guide, Chapter 1: Operating Systems, Page 10.7: CITM Study Guide, Chapter 4: Object-Oriented Analysis and Design, Page 64.

Answer : B

A decompiler is a program that translates from a low-level language to a higher level one. A low-level language is one that is close to the machine code, such as assembly or binary. A higher level language is one that is more abstract and human-readable, such as C++ or Java. A decompiler can reverse-engineer the source code from an executable file, which can be useful for debugging, analysis, or modification purposes.However, decompilation is not always possible or accurate, as some information may be lost or obfuscated during the compilation process12.Reference:1: What is a compiler?How source code becomes machine code12: How does an interpreter/compiler work2

Answer : A, B, E

Systems software is software that provides a platform for other software and manages the basic functions of a computer. Examples of systems software include operating systems, device drivers, firmware, utility software, and boot loaders. Operating systems are the most important type of systems software, as they provide the foundational framework for all other software and applications to run on the computer. Linux and Unix are examples of operating systems that are widely used in various domains, such as servers, desktops, embedded systems, and supercomputers. Device drivers are another important type of systems software, as they allow the operating system to communicate with hardware devices such as printers, scanners, and graphics cards. A device driver is a software component that acts as an interface between the hardware and the operating system, providing the necessary commands and data to control the device. Internet Explorer and Adobe Photoshop are not examples of systems software, but application software. Application software is software that allows users to perform specific tasks, such as browsing the web, editing images, creating documents, or playing games. Application software runs on top of the systems software and uses the services and resources provided by the operating system and the hardware.Reference:System software - Wikipedia,What is System Software? -- Definition, Types, Examples and More,What is System Software: Definition, Types, Language Processors - Toppr.

Answer : A, B, E

Application software is a type of computer program that performs a specific personal, educational, or business function. It is designed to help users perform an activity or solve a problem. Application software can be classified into two basic categories: general-purpose and specific-purpose. General-purpose application software can be used for a variety of tasks, such as word processing, web browsing, or image editing.Specific-purpose application software is tailored for a particular domain, such as accounting, engineering, or gaming12

According to these definitions, Adobe Photoshop, Internet Explorer, and Microsoft Word are examples of application software. Adobe Photoshop is an image editing software that allows users to create and modify digital images. Internet Explorer is a web browser software that enables users to access and view web pages. Microsoft Word is a word processor software that allows users to create and edit text documents. All these software are designed to help users perform specific tasks and are independent of the operating system or hardware.

On the other hand, Linux and Unix are not examples of application software. They are examples of system software, which is a type of computer program that controls and manages the operation of the computer and its peripherals. System software includes operating systems, device drivers, firmware, and utilities. Operating systems, such as Linux and Unix, are system software that provide the basic functions and services for running other software and applications. They are responsible for managing the hardware resources, such as memory, CPU, disk, and network, and providing the user interface, such as command-line or graphical.System software is essential for the functioning of the computer and is usually pre-installed or embedded in the computer123Reference:1:Application software | Definition, Examples, & Facts | Britannica,2:What is Application Software? App Software Examples and Basics - Quickbase,3:Application software - Wikipedia

Answer : A, B, D

Distributed databases provide several advantages over centralized databases, including improved scalability, availability, performance, flexibility, fault tolerance, and security1. Here are some of the advantages of distributed databases:

Increased availability: Distributed databases can tolerate failures of individual nodes or sites without affecting the overall system functionality. Users can access data from other sites if their local site is down or unreachable.Data replication and backup mechanisms can also enhance data availability and recovery2.

Easier expansion: Distributed databases can be scaled horizontally by adding more nodes to the network. This allows for increased capacity and performance as data and user demand grow.Adding new sites or units to the distributed system does not require significant efforts or disruption in the existing functions2.

Improved performance: Distributed databases can offer faster response and lower communication costs by locating data near the users who normally use that data. Distributed query processing and transaction management can also optimize the use of network and computing resources.Furthermore, distributed databases can exploit the parallelism of multiple nodes to execute operations concurrently13.

Answer : C

According to the CITM course outline1, there are five data collection techniques that are commonly used in business analytics. They are:

Observations: This technique involves watching and recording the behavior, actions, or events of interest. Observations can be either direct or indirect, structured or unstructured, participant or non-participant.

Interviews: This technique involves asking questions to individuals or groups of people who have relevant knowledge or experience on the topic. Interviews can be either structured, semi-structured, or unstructured, depending on the level of flexibility and standardization of the questions.

Surveys: This technique involves administering a set of questions to a sample of respondents who represent the population of interest. Surveys can be either quantitative or qualitative, depending on the type and scale of the questions.

Focus groups: This technique involves gathering a small group of people who share some common characteristics or opinions on the topic and facilitating a discussion among them. Focus groups can be used to explore attitudes, perceptions, feelings, or preferences of the participants.

Documents: This technique involves reviewing and analyzing existing documents or records that are relevant to the topic. Documents can be either primary or secondary, depending on the source and authenticity of the information.

1: 7 Data Collection Methods and Techniques | SafetyCulture

2: CITM 500 Data and Information Management | The Chang School of Continuing Education - Toronto Metropolitan University

3: Data Collection Methods | Step-by-Step Guide & Examples - Scribbr

4: Data Collection - Methods Types and Examples - Research Method

Answer : D

The spiral model is a software development lifecycle model that extends the waterfall approach by recognizing the different cycles of planning, risk analysis, engineering, and evaluation. The spiral model allows for iterative and incremental development, where each cycle produces a prototype or a deliverable that can be evaluated by the customer and the project team. The spiral model also incorporates risk management throughout the project, as each cycle involves identifying and resolving potential risks before proceeding to the next cycle. The spiral model is suitable for large, complex, and uncertain projects that require frequent feedback and adaptation.Reference:

Spiral Model vs. Waterfall Model: Definitions and Differences

Waterfall Methodology: The Ultimate Guide to the Waterfall Model