Test 1
What is the decimal number 75 in binary and hexadecimal?
01001011 - binary 4B - hex
What is a Command Line Interface (CLI)?
A Command Line Interface allows the user to interact with OS using typed commands or scripts rather than a GUI
You want to check whether a condition has been met, and if it has, perform one action. Otherwise, you want your program to perform a second action. What sort of programming operation would help achieve this?
A conditional branch
How does a markup language differ from a compiled language?
A markup language is not a programming language, rather it is a way of using nested tags within a document to describe its structure and contents.
What is the difference between a procedure and a function?
A procedure does something, while a function does something and then returns a value to the main program
What type of programming concept allows for a variable size container?
A vector
What are the structural elements of a database?
Each table stores information about records in fields
How does Microsoft SQL Server differ from Microsoft Excel when used to store a dataset?
Excel is an example of a flat file system, whereas SQL Server is relational database software that is better suited for larger volumes of information and more users
Which data type provides whole numbers only?
Integer
What function of an operating system is performed by the "shell"?
Interface between the user and the computer
What is an interpreted programming language?
Interpreted languages do not need to be compiled because the code gets converted to machine code at runtime.
You are setting up a new computer, but it doesn't seem to be working. Should you check anything or contact the manufacturer?
It would be best to double-check you have connected the cables correctly
Give two examples of semi-structured data stores.
Key/value pair databases and markup language document stores
What is an example of open source operating systems?
Linux, Chromium, or Android
You have to open a word processing application, but you cannot see an icon on the desktop. What should you do?
Look for the shortcut in Start Menu or Start Screen
What is the difference between freeware and open source software?
Open source means that the programming code used to design the software is publicly available
You are using the mouse to access a file located on a network server. There are currently no mapped drives. What should be your first step?
Open the network object from Explorer and locate the server hosting the file
You have just bought a new computer but want to use the older version of Windows that came with your previous computer. Windows was provided as an OEM license. Can you use this license key to install the software on your new PC?
Original Equipment Manufacturer (OEM) licenses can only be used on the brand and model it was initially installed on
You need a development environment with a library of database functions. What type of interface are you using?
Programmatic access
What are constants and variables examples of?
Programming identifiers
What shows the structure of code without using the specific syntax of any one language?
Pseudocode
What term is used to describe selecting and viewing information in a database?
Query
Which of the following is NOT an example of unstructured data?
Relational databases
What IoT device may contain a "black box" that is able to record event data?
Smart Vehicle
Which of these statements is TRUE regarding a standard user and their password?
Standard users can change their own password but cannot change anyone else's password
Why might you use the Services snap-in to manage background processes rather than Task Manager?
Task Manager allows you to start and stop services but the Service snap-in also allows you to configure service properties
What compatibility information should you confirm before installing a software application?
That it works with the version of the operating system that you have, and that your computer meets the system (hardware) requirements
Why might one of your first tasks on receiving a new computer be to remove software applications?
The computer may be bundled with pre-installed software that you do not want
What two things are configured on a disk to make storage space on the disk available to the Windows OS?
The disk must have 6 GB of RAM configured and the system should automatically allocate a matching pagefile
What crucial piece of information would you need to locate support information about a computer system on the manufacturer's website?
The model number or a service code
You colleague is using a laptop and you notice that he laboriously clicks the external mouse repeatedly to scroll through the document you are co-editing. Which feature could he use to be more productive?
The mouse scroll-wheel on the external mouse to maneuver the scroll bar
What is the registry and how does it distinguish Windows and Linux?
The registry is a database of configuration settings supporting the Windows OS. Linux uses individual text files to store settings
What term is used to describe terminating a process that is not responding to user input?
This is often called "killing" the process
Following installation of an application, another program on your computer has stopped working. What could you do to try to fix it?
Try using the Repair option in Programs and Features (if available) or re-installing the program
Which data representation format can encode the widest range of characters?
Unicode
What is the technical term for a web address?
Uniform Resource Locator (URL)
You are looking for content on a topic, but your search is returning millions of matches? that are not particularly helpful. Which option includes two methods that you could use to get better search results?
Use more search keywords or search for an exact phrase by enclosing it in quotes
Which method does a technician use to configure and improve a system's memory usage?
Use of virtual memory or a pagefile, where disk space is used to supplement system RAM
You are advising a colleague about the best practices when troubleshooting. You have identified the following techniques to use to identify the problem: gather information, duplicate the problem, question users, identify symptoms, and approach multiple problems individually. If you are following CompTIA's troubleshooting model, what other piece of advise could you give?
Determine if anything has changed
What data protection technology could you implement in order to restrict the type of activity that a user could employ on digital products that they have purchased or rented?
Digital Rights Management
What protection feature in Windows is designed to prevent a script of software from making unauthorized changes to the OS configuration?
User Account Control (UAC)
In order to obtain support on a currently installed application, the software vendor wants to know the application's product ID. How would you locate this information?
Usually via the Help > About menu
What should you do before attempting to set up a new computer system?
Verify that the environment is suitable and that the installation will be safe
Which of these statements is FALSE regarding the Windows 10 versions available
Windows 10 Enterprise is similar to the Pro edition but designed for licensing by small businesses
You have to sign in to Windows - does it matter if the CAPS LOCK light is activated on the keyboard?
Windows passwords are case sensitive, so the CAPS LOCK may precent successful login
What type of computing device(s) is macOS designed for installation on?
Workstations and laptops
You want to find something on a particular website, but the site does not have a search tool. Could you use a general search engine (and if so, how)?
Yes--you use an advanced search form and provide a URL such as comptia.org
What is the best way to install a web application on your computer?
You do not install a web application on your computer. You access it through your browser
When setting up a desktop computer, what factor should you consider when deciding on the location of the system case?
You need to consider the position of power outlet(s) and peripheral devices as well as air flow around the system unit
Which system object provides the functionality for a hardware component?
A device driver
In a program, what does a loop do?
A loop performs one or more instructions until a condition is met
If you do not have a support contract, what is likely to be the best option for obtaining advise about a problem with an application?
A product support or community forum
What type of computer is best suited for using in a job where you have to make notes and be able to move around easily?
A tablet or smartphone or possibly a hybrid laptop/tablet
In general, what is the difference between the char and string data types?
Char stores single textual character in a fixed length field (typically 1 byte). A string is a variable length field for sorting a sequence of characters
The Task Scheduler allows you to run a process automatically in Windows. What is a Widely-used Linux equivalent?
Cron
What key combination can you use to force the browser to ignore any locally cached files when refreshing a page?
Ctrl+F5
How is a relationship identified between two tables in an RDBMS?
Each table contains a foreign key whose value is unique for each record in the table. A secondary table can use the value of a foreign key as a relation, storing the value in a primary key field
Which is a true statement regarding whether or not laptops make good servers?
There are limited options for expansion, and it's components are not practical for network-wide use cases
How can a client-server application architecture be described if it could be re-developed to split the application and presentation layers?
This could be described as a two-tier application capable of becoming a tier-three application
Why is a smartphone NOT a good tool for writing a report?
Touchscreen or mini keyboards are not optimized for writing lots of text
What factors should you consider when positioning input and output devices?
Ensure that they can be without exerting strain, especially on the arms / wrists and back / neck
You have asked a senior manager to authorize your plan of action for resolving a fault in a software application. What name is given to the process you are following?
Escalating the problem
Why would Windows prompt you to enter a password if you try to install a software application?
Installing an application requires administrator privileges and is an action protected by User Account Control
What is TRUE about legal protection for a novel software algorithm?
Patent provides the best protection as it can enforce ownership even if someone tries to write the algorithm in a slightly different way
Your colleague has to run many application at the same time and finds it difficult to know which icon to choose when switching between them. what alternative method could you suggest?
Press Alt+Tab - this shows previews of the window and allows the user to quickly switch between windows
What type of software manages tasks, dependencies, and timelines?
Project management software
What three things define an object?
Properties, attributes, and methods
What type of software would you use to configure a server by connecting to it over the network?
Remote desktop
What language is usually used to request data from an RDBMS such as Oracle?
Structured Query Language (SQL) is used to query RDBMS-based database platforms
Windows comes with web server software, but it is not installed by default. How would you install this software?
Use the Turn Windows features on or off dialog from Programs and Features
Following installation of a program written for an older version of Windows, you receive an alert that it might not have installed correctly. What feature could you use to make the program run correctly?
Use the program's Compatibility tab to use settings for the older Windows version
Your computer locks up (freezes) periodically and feels hot to the touch. Could these thing be related?
Yes, many lockup problems are caused by overheating
What systems use a Central Processing Unit (CPU) and memory?
All types of computers
What three scripting options are commonly used in Windows 10 to perform administrative tasks?
Batch files, Windows PowerShell scripts, and VBScripts
Which notation system supports presenting the largest numbers using fewest digits?
Hexadecimal
What is the advantage of a local network hosted application, in terms of data storage?
If data is stored on the server and not on the local workstation, it is easier to apply access controls and to back it up.
What part of the process of data analytics is most closely supported by meaningful reporting?
Insights
An INSERT statement is an example of what data language type?
Data Manipulation Language
What type of computer is most likely to need peripheral devices?
Desktop
