Npower ITF+ Study Guide
Which of the following internal computing components has the primary function of producing visual output to a monitor or other display device? Select one: A. GUI B. CPU C. VGA D. GPU
A VGA is a standard interface used to connect a video output device such as a computer to a display device such as a monitor or projector. It is responsible for converting the digital video signal from the computer into an analog signal that can be displayed on the monitor.
Ann, a user, is experiencing difficulty getting her IP-based security camera to function at her house after a rain storm that caused a power interruption. The camera has an LED light indicating it has power. Which of the following is MOST likely the problem? Select one: A. Ann's Internet connection and wireless router are still down. B. The power interruption caused the camera to malfunction C. A firmware update needs to be applied to the camera. D. Ann has a compatibility problem with the camera.
A: Ann's Internet connection and wireless router are still down.
Which of the following types of network security deals with deviations from the historic connection patterns and analysis of new threats to provide effective mitigation responses? Select one: A. Behavior security B. Authorized hacking C. Information Identity Management D. Unauthorized hacking
A: Behavior security Behavior security, also known as behavioral analytics, is a type of network security that uses machine learning and other advanced technologies to analyze patterns of network traffic and user behavior in real-time. By analyzing these patterns, behavior security solutions can detect unusual or suspicious behavior, such as abnormal data transfers, unauthorized access attempts, or other potentially malicious activity.
A WPA2 enterprise wireless network has been subject to several attacks within the last month. Which of the following would be the BEST option to improve the security of the network? Select one: A. Change the default password. B. Change to WEP security C. Create a guest network. D. Change the SSID.
A: Change the default password. In the question, Which of the following would be the BEST option to improve the security of the network? Changing the default password would be the only GOOD option to select.
The marketing department contacts the web development team and states that they are receiving inconsistent values in a newly launched form. Which of the following is MOST likely the problem? Select one: A. Client-side scripting has been deactivated on some clients visiting the site. B. Legacy browsers that do not support scripting are being used by some clients. C. Server-side scripting has been deactivated by the server administrator. D. Private browsing is being used by some clients visiting the site.
A: Client-side scripting has been deactivated on some clients visiting the site Client-side scripting refers to scripts or programs that are executed on the client's web browser rather than on the server. This includes JavaScript, which is commonly used to enhance the functionality and user experience of web pages. If client-side scripting has been deactivated on some clients visiting the site, it means that the scripts are not executing properly, which could lead to inconsistent values being submitted in the form. This could be due to various reasons, such as browser settings, security configurations, or extensions that block scripts.
Which of the following would work BEST stored as a flat file rather than stored in a database? Select one: A. Contact list B. Directions to doctor's office C. Movie theater locations. D. Store inventory
A: Contact list, A flat file database is a database that stores data in a plain text file, where each line of the file represents a record and each field within the record is separated by a delimiter, such as a comma or a tab.
Which of the following services is used to translate a URL to an IP address? Select one: A. DNS B. IMAP4 C. MAC Adress D. ARP
A: DNS Translating URLs to IP addresses is DNS (Domain Name System)
A technician has worked through all steps of the troubleshooting methodology and has not been able to resolve the issue. Which of the following should the technician do NEXT? Select one: A. Escalate as necessary. B. Gather information. C. Confirm the root cause. D. Establish a new theory.
A: Escalate as necessary. Escalation means to bring the problem to a higher level of authority or expertise, such as a supervisor or a more experienced technician. Escalation is the next step when a technician has exhausted all their options and still cannot resolve the issue. This allows the problem to be escalated to someone who has more expertise or resources to help resolve the issue.
A remote user, who is working from home, requires significant bandwidth to connect to the corporate systems. Which of the following types of Internet service connections would BEST meet the user's needs? Select one: A. Fiber optic B. T1 Line C. DSL D. Satellite
A: Fiber optic Fiber optic is the FASTET at transferring data
Which of the following would be BEST to keep the data on a laptop safe if the laptop is lost or stolen? Select one: A. Full disk encryption B. Anti-malware software C. Host-based firewall D. Strong administrator password
A: Full disk encryption Full disk encryption is a security measure that encrypts all the data on the hard drive, making it unreadable without the encryption key.
Which of the following numbering systems is used to represent MAC addresses? Select one: A. Hexadecimal B. Binary C. Decimal D. Octal
A: Hexadecimal Hexadecimal is a numbering system that uses 16 digits, consisting of the numbers 0-9 and the letters A-F, MAC address is composed of six pairs of hexadecimal digits, separated by colons or dashes. For example, a MAC address might be represented as 01:23:45:67:89:AB.
Which of the following is the BEST method for ensuring there is no Telnet access? Select one: A. Host-based firewall. B. Intrusion detection system C. Antivirus software D. Network Sniffer
A: Host-based firewall host-based firewall can be configured to block Telnet traffic (Port 23), thus preventing unauthorized access to the system.
Which of the following requires the MOST frequent updating to remain effective? Select one: A. Device drivers. B. Antivirus. C. Web browser. D. Host firewall.
B: Antivirus Software application designed to detect, prevent, and remove malicious software (malware) from a computer system. Antivirus programs rely on constantly updated databases of known threats and methods of protection to effectively defend against new threats.
Which of the following would not be considered metadata for a spreadsheet file? Select one: A. File size B. Calculations inside the file C. Name of the file D. Read-only attribute
B: Calculations inside the file https://i.imgur.com/4awYYw2.png
A developer is troubleshooting code in an application. The code is supposed to return the word "vegetables" if the category id is only 2. However, the code is returning vegetables for all values except category id 1. Which of the following code statements would BEST correct the issue? Select one: A. If category id = 1 then 'Fruit' Else if category id = 2 then 'Vegetables'Else 'Candy' B. If category id = 1 then 'Fruit' Else 'Vegetables' C. If category id = 1 then 'Fruit'Else if category id >= 2 then 'Vegetables'Else 'Candy' D. If category id <> 1 then 'Vegetables'Else 'Fruit'
A: If category id = 1 then 'Fruit' Else if category id = 2 then 'Vegetables'Else 'Candy' This code statement uses conditional logic to check the category id value and returns the corresponding category name. The issue in the existing code is that the category name 'vegetables' is being returned for all values except category id 1, which indicates that the condition for category id 2 is not being evaluated properly.
A global variable called "age" will be created in a program and incremented through the use of a function. Which of the following data types should be defined with the age variable? Select one: A. Integer B. Double C. Char D. Float
A: Integer An integer data type is used to represent whole numbers, such as 0, 1, 2, -1, -2, etc. Since age is typically represented as a whole number (e.g., 25 years old), an integer data type is appropriate for this variable.
Which of the following printer types uses a powder based consumable with a lower cost per page compared to other printers? Select one: A. Laser B. Dot matrix C. Inkjet D. Thermal
A: Laser Laser printers use a powder-based consumable, known as toner, which has a lower cost per page compared to other printer types such as inkjet or thermal printers. This is because toner cartridges can produce a much higher page yield before needing to be replaced, making them more cost-effective for high-volume printing.
What type of printer is most likely to use a continuous form feeder? Select one or more: A. Laser printer B. USB C. Dot-matrix D. 3D Pritners
A: Laser printer & C: Dot-matrix
The Chief Executive Officer (CEO) has received several emails that are missing attachments. Which of the following concerns is the CEO experiencing? Select one: A. Man-in-the-middle B. Email service outage C. Denial-of-service D. Eavesdropping
A: Man-in-the-middle A man in the middle (MITM) attack is a general term for when a perpetrator positions himself in a conversation between a user and an application, and in this case, the hacker is removing attachments before they get to the CEO
Which of the following WiFi security options would create the MOST need for a VPN connection on the client device? Select one: A. Open B. WEP C. WPA3 D. WPA
A: Open An Open WiFi network is an unsecured wireless network that does not require any authentication or encryption to connect. Anyone within range of the network can connect to it and potentially eavesdrop on network traffic or inject malicious data into the network.
You have configured a database in the headquarters office located in Houston, Texas. Your company has offices in major cities across Canada and the United States. Users in Eastern Canada complain about slow query access to the database, while Texas users enjoy fast performance. What should you do? Select one: A. Place a read replica in Eastern Canada. B. Create a foreign key C. Create an index D. Place a writeable replica in Eastern Canada.
A: Place a read replica in Eastern Canada. A read replica is a copy of the database that is used to serve read-only traffic. By placing a read replica in Eastern Canada, users in that region can query the replica instead of the primary database located in Texas. This can help to reduce latency and improve query performance for those users.
Which of the following is an example of an interpreted language? Select one: A. Python B. C++ C. Java D. Go
A: Python Interpreted language PHP Ruby Python JavaScript
Which of the following devices gives the paper a positive charge? Select one: A. The Transfer corona wire B. The print drum C. Pick up rollers D. The rollers
A: The Transfer corona wire In the printing process, the transfer corona wire is responsible for giving the paper a positive charge. This is important because the toner, which is negatively charged, will be attracted to the paper and can be transferred from the print drum to the paper. The transfer corona wire is a thin wire that carries a high voltage electrical charge, which is used to create the positive charge on the paper as it passes through the printer.
For a disaster recovery exercise, a company wants to ensure customer data is recovered before operational data. This is an example of: Select one: A. prioritization. B. redundancy. C. replication. D. fault tolerance.
A: prioritization Prioritization is the process of ranking or organizing items or activities based on their relative importance or urgency. In this case, the company has prioritized the recovery of customer data over operational data, which indicates that customer data is more critical and sensitive to the business than operational data.
A technician needs to install a wireless router for a client that supports speeds up to 11Mbps and operates on the 2.4GHz band. Which of the following should the technician select? Select one: A. 802.11z B. 802.11b C. 802.11a D. 802.11g
B: 802.11b 802.11 is a family of wireless network protocols, also known as Wi-Fi. The different letters indicate different variations of the protocol, each with specific specifications. Below is the family of protocols, and their speeds. https://i.imgur.com/gbJKS0x.png
Which of the following relational database constructs is used to ensure valid values are entered for a column? Select one: A. Permissions B. Constraint C. Hypervisor type 2 D. Schema
B: Constraint, A constraint is a rule that is defined in a relational database to ensure the validity and accuracy of the data that is entered into it. Constraints can be applied to one or more columns in a database table and can be used to enforce a wide range of rules, such as data type, uniqueness, and foreign key relationships.
A software developer develops a software program and writes a document with step-by-step instructions on how to use the software. The developer wants to ensure no other person or company will publish this document for public use. Which of the following should the developer use to BEST protect the document? Select one: A. Watermark B. Copyright C. Patent D. Trademark
B: Copyright A copyright is a type of intellectual property that gives its owner the exclusive right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time.
Which of the following is the BEST example of structured data? Select one: A. Employee beverage preferences organized in a single text field B. Customer information that can be sorted or grouped by any field C. Manager home addresses stored in a flat file without fields D. Vendor order information stored in unnamed fields
B: Customer information that can be sorted or grouped by any field Structured data is data that is organized in a consistent and structured way, making it easy to search, sort, and analyze.
The sales department needs to keep a customer list that contains names, contact information, and sales records. This list will need to be edited by multiple people at the same time. Which of the following applications should be used to create this list? Select one: A. Presentation software B. Database software C. Open-source software D. Single use
B: Database software, Database software is designed to manage large amounts of data in an organized and efficient way. It allows multiple users to access and modify the same data simultaneously, making it ideal for collaborative work. In a database, the data is stored in tables, which can be linked to other tables to create relationships between the data.
A function is BEST used for enabling programs to: Select one: A. define needed constant values. B. Define variables to hold different values. C. be divided into reusable components. D. hold a list of numbers.
B: Define variables to hold different values, used to initialize a function
A desktop administrator just connected a printer to a workstation, but the workstation does not recognize the printer. Which of the following does the workstation MOST likely need for the printer to function? Select one: A. Ink cartridge B. Driver C. USB cable D. Permission
B: Driver A driver is a software component that enables a computer to communicate with a hardware device, such as a printer. Without the proper driver installed, the computer will not recognize the printer and will not be able to send print jobs to it.
A technician is installing a wireless router for a home user. Which of the following will protect the data in transit between a device and the router? Select one: A. Using 802.11ac B. Enabling encryption C. Setting a new SSID D. Changing the default password.
B: Enabling encryption Encryption is the process of converting data into a format that can only be read by authorized parties. In the case of a wireless network, encryption is used to protect the data that is transmitted between a device and the router from being intercepted by unauthorized parties.
The broadcast signal from a recently installed wireless acess point is not as strong as expected. Which of the following actions would BEST improve the signal strength? Select one: A. Update from 802.11b to 802.11g B. Ensure source of EMI are removed C: Enable WPA2-Enterprise D: Use WiFi Protected Setup
B: Ensure source of EMI are removed, Electromagnetic interference can significantly impact wireless signals, causing them to be weakened or even lost. Removing any sources of EMI, such as other electronic devices or appliances, can help improve the wireless signal strength.
Which of the following file systems does not have built-in security? Select one: A. HFS B. FAT C. ext3 D. ext4
B: FAT FAT (File Allocation Table), FAT is an older file system used primarily on older versions of Windows and other legacy operating systems. It does not have built-in security features like access control lists (ACLs), which allow administrators to control who can access or modify files and directories.
Which of the following network protocols will MOST likely be used when sending and receiving Internet email? (Choose two.) Select one or more: A. ICMP B. HTTPS PoP3 C. SMTP
B: HTTPS PoP3 C: SMTP SMTP (Simple Mail Transfer Protocol) standard protocol used for sending email messages over the internet. PoP3 (Post Office Protocol version 3) standard protocol used for receiving email messages over the internet. WRONG ICMP (Internet Control Message Protocol) network protocol used for error reporting and diagnosing network problems.
A user has an outdated version of an operating system for which support is no longer available. The browser is also out of date. Which of the following should the user do to BEST protect online banking information? Select one: A. Install and configure a firewall. B. Install and run an antivirus program. C. Install and configure an IDS. D. Install and use another browser.
B: Install and run an antivirus program. An outdated operating system and browser can leave the user vulnerable to security risks and attacks. The software may have known vulnerabilities that can be exploited by attackers, potentially exposing sensitive information like online banking credentials. Installing and running an antivirus program can help protect against malicious software that may be used to exploit these vulnerabilities.
Which of the following data types BEST performs calculations? Select one: A. Vector B. Integer C. Char D. String
B: Integer Integer. Integer data type is used for storing whole numbers (positive, negative, or zero) without any decimal point. It is the best data type for performing mathematical calculations, such as addition, subtraction, multiplication, and division, as it can handle arithmetic operations more efficiently than other data types, such as floating-point or double.
Which of the following language types would a web developer MOST likely use to create a website? Select one: A. Query B. Interpreted C. Complied D. Assembly
B: Interpreted Interpreted languages HTML CSS JavaScript
Which type of coding practice uses smaller code modules working together to support an application? Select one: A. Interpreted B. Microservices C. Monolithic D. Complied
B: Microservices In microservices architecture, an application is decomposed into a set of smaller, independent services that can be developed, deployed, and scaled independently of one another. Each microservice is designed to perform a specific business function and communicates with other microservices using well-defined interfaces or APIs.
Answer and explain this answer, Which of the following BEST describes the purpose of a vector in programming? Select one: A. Repeating a similar operation. B. Performing mathematical calculations. C. Storing a collection of data. D. capturing user input.
B: Performing mathematical calculations. A vector is a mathematical object that represents a quantity with both magnitude and direction. In programming, vectors are typically used to perform mathematical calculations, such as vector addition, subtraction, multiplication, and division. Vectors can be used to represent physical quantities, such as velocity, acceleration, and force, as well as abstract quantities, such as probabilities and frequencies.
You are using the C programming language to create a software solution. A single variable must be tested for multiple possible values. Which programming construct should you use to achieve this? Select one: A. Select case B. Switch C. While D. if
B: Switch The "switch" statement is a control flow statement that tests the value of a variable against a list of possible cases and executes the code associated with the first matching case. It provides a more efficient and concise way of testing a variable against multiple values than using a series of "if-else" statements.
Which of the following BEST describes the physical location of the data in the database? Select one: A. RAM B. Table C. HDD D. Column
B: Table In a database, data is organized into tables, which are made up of rows and columns. Each row represents a single record, while each column represents a specific attribute of that record.
Concerned with vulnerabilities on a home network, an administrator replaces the wireless router with a recently released new device. After configuring the new device utilizing the old SSID and key, some light switches are no longer communicating. Which of the following is the MOST likely cause? Select one: A. The SSID is not being broadcast. B. The router is operating on a different channel. C. The light switches do not support WPA2. D. The key does not meet password complexity requirements.
B: The router is operating on a different channel. Wireless routers operate on specific channels in the wireless spectrum, which allow wireless devices to communicate with the router. If the new router is operating on a different channel than the old router, some wireless devices, such as the light switches in this case, may not be able to communicate with the new router. This is because the light switches may be configured to communicate only on the channel used by the old router.
What prevents the paper from rolling into the print assembly with the print drum? Select one: A. The registration rollers B. The static eliminator strip C. The fuser D. The electrical chage on the paper and the print drum
B: The static eliminator strip The static eliminator strip prevents the paper from rolling into the print assembly with the print drum. The static eliminator strip is a thin strip of metal that neutralizes any static charge that may be present on the paper, preventing it from sticking to the drum and causing jams.
Which of the following will a company do to update a customer's address while using a flat file database? Select one: A. Update the address in the customer address table. B. Update the address field in the customer order table. C. Update the address for each order the customer placed. D. Update the primary key to reflect the customer's address.
B: Update the address field in the customer order table
Given the following pseudocode: Program Breakfast Weekday = ["Monday","Tuesday", "Wednesday","Thursday","Friday"] Weekend = ["Saturday", "Sunday"] if today == Wednesday output "Bacon and eggs" else if today == Friday output "Oatmeal else if today in weekend output "Waffles" else output "Pancakes" End If the Breakfast program ran on Sunday, which of the following would be the output? Select one: A. Pancakes B. Waffles C. Bacon and eggs D. Oatmeal
B: Waffles The program defines two lists: Weekday and Weekend. Weekday includes the days from Monday to Friday, while Weekend includes Saturday and Sunday. The program then checks the current day (today) against several conditions using "if" statements. It checks if today is Wednesday, Friday, or in the Weekend list. If today is Wednesday, the output will be "Bacon and eggs." If today is Friday, the output will be "Oatmeal." If today is in the Weekend list, the output will be "Waffles." If none of the above conditions are met, the output will be "Pancakes."
Which of the following is the closest to machine language? Select one: A. Query languages B. Complied languages. C. Assembly languages D. Scripted languages
C: Assembly languages Assembly language is a low-level programming language that uses mnemonics to represent machine instructions. These mnemonics are then translated into machine code by an assembler.
Meaningful and accurate reporting is essential to retailers in making business decisions while managing inventory. Which of the following offers the BEST assistance in generating reports? Select one: A. Sales statistics. B. Asset inventory inputs. C. Average loss output. D. Data capture and collections.
C: Average loss output. When you generate a report, you can look at the average loss output for the day/week/month/etc.. and see what you need to change.
An administrator grants permission for a user to access data in a database. Which of the following actions was performed? Select one: A. Data gathering B. Data manipulation C. Data definition D. Data correlation
C: Data definition, Defining the user's access privileges (permissions).
Disabling the Bluetooth adapter on a laptop when it is not in use is an example of: Select one: A. Hardware theft prevention B. Dumpster diving C. Device hardening D. Cracking
C: Device hardening Device hardening is the process of securing a device by reducing its attack surface, eliminating or mitigating potential vulnerabilities, and ensuring that it is configured to meet security best practices. This includes disabling unnecessary services and features, applying security patches and updates, and implementing security policies and controls.
A technician overhears a systems administrator mention the term "IOPS". To which of the following operating system functions would the term BEST apply? Select one: A. Application management B. Process management C. Disk management D. Service management.
C: Disk management IOPS (Input/Output Operations Per Second) Measures the performance of a storage device by counting how many read and write operations it can perform in one second.
A user is getting an error message when trying to go to a website. A technician asks the user a few questions to find out more about the issue. The technician opens a browser locally and browses to the same site as the user. Which of the following troubleshooting steps is the technician using by browsing to the same site? Select one: A. Establish a plan of action B. Find the root cause C. Duplicate the problem D. Gather information
C: Duplicate the problem, Duplicating the problem is an essential step in troubleshooting any technical issue. By browsing to the same site, the technician is attempting to reproduce the error that the user is experiencing, which is a crucial step in isolating the root cause of the issue.
Which process places toner onto the paper on a laser printer? Select one: A. A special ink marker B. A lazer gun C. Magnetism D. Fuser
C: Magnetism Magnetism is the process that places toner onto the paper on a laser printer. The toner is made up of tiny particles of plastic resin and pigment, which are attracted to areas of the paper that have been given a positive electrostatic charge by the laser.
Which of the following is a value that uniquely identifies a database record? Select one: A. Foreign key B. Public key C. Primary key D. private key
C: Primary key A primary key is a field or combination of fields(collum) in a database table that uniquely identifies each record in that table. It is a unique identifier that helps in locating and managing specific records in the database. Below is an example. https://i.imgur.com/FG7b5dF.png
A user at a company visits a weather website often during the day. The user browses to the site in the afternoon and notices that the temperature listed is from the morning and is not the current temperature. The user closes the page and tries again with the same result. Which of the following is the MOST likely cause? Select one: A. Browser add-on B. Script blocker C. Proxy server D. Corrupted cache memory
C: Proxy server Attempting to pull the same data from the server, and allowing it to update.
Employee information is stored in a database. Which of the following BEST describes where all of an employee's information is stored? Select one: A. Procedure B. Column C. Record D. Report
C: Record A record is a complete set of data that contains all of the information for a single instance of the type of data being stored. In this case, all of an employee's information would be stored in a single record in the employee table, including their name, address, phone number, email address, job title, salary, and any other relevant information.
A database administrator created the outline for a database that describes its components and how they work. Which of the following did the database administrator create? Select one: A. Field B. Constraint C. Schema D. Record
C: Schema A schema is a logical container for a database that describes the structure of the database and how it's organized. It outlines the tables, columns, data types, relationships between tables, and constraints such as primary keys, foreign keys, and indexes. A schema is critical to defining and maintaining the integrity of the data stored in the database.
Which of the following programming language types is generally the FASTEST way to write a program ad hoc tasks quickly? Select one: A. Pseudocode B. Assembly language C. Scripting language D. Compiled programming language
C: Scripting language Python, Perl, and Ruby, are interpreted programming languages that are designed to be used for quickly writing small and ad hoc programs.
A technician is concerned that sensitive data transmitted over the Internet can be intercepted and viewed during a MITM attack. Which of the following should the technician enable to reduce the risk? Select one: A. DLP B. ACL C. TLS D. IPS
C: TLS TLS (Transport Layer Security) A protocol that provides encryption and authentication for internet traffic. It ensures that the data is encrypted before it is transmitted over the internet, making it difficult for anyone to intercept and view the data.
Which of the following printers requires a special type of paper in order to print? Select one: A. Impact B. Laser C. Thermal D. Inkjet
C: Thermal Thermal printers use special heat-sensitive paper to print, where the paper is coated with a heat-sensitive material that changes color when exposed to heat. This type of paper is not required for other types of printers, such as impact, laser, or inkjet printers.
A project manager needs to compile a lot of start and end dates for events in a project. Which of the following software types is the project manager MOST likely to use? Select one: A. Word processor software B. Spreadsheet software C. Visual diagramming software D. Network share
C: Visual diagramming software Visual diagramming software allows you to create diagrams and flowcharts that can be used to represent complex information and processes. In this case, a project manager could use the software to create a Gantt chart or timeline, which shows the start and end dates for each event in the project.
Application Architecture models have how many layers? Select one: A. 2 B. 5 C. 1 D. 3
D: 3, The three layers of application architecture models are: Presentation layer Business layer Data storage layer
Which of the following is the BEST option for a developer to use when storing the months of a year and when performance is a key consideration? Select one: A. Vector B. List C. String D. Array
D: Array Arry is fixed size Vector is dynamically sized Because it's months of the year, and they do not change, there is no need for it to be dynamically sized.
A help desk technician encounters an issue and wants to find out if a colleague has encountered the same issue before. Which of the following should the technician do FIRST? Select one: A. Research possible theories B. Search local logs C. Question users D. Check Knowledge Base
D: Check Knowledge Base, A knowledge base is a centralized repository of information and solutions to common problems, issues, and questions. It contains articles, documentation, FAQs, and other resources that can help the technician quickly identify the root cause of an issue and find a solution. Below is a example. https://i.imgur.com/CzszkNY.png
A database administrator finds that a table is not needed in a relational database. Which of the following commands is used to completely remove the table and its data? Select one: A. ALTER B. UPDATE C. DELETE D. DROP.
D: DROP It's in the name, Drop, you are dropping something from the database. The only command used to remove an entire table and its data from a relational database.
A company requires several reports that analyze related information from sales, inventory, marketing, and compensation data. Which of the following is the BEST place to store this data? Select one: A. Network share B. Word processor software C. Flat file D. Database
D: Database A database is an organized collection of data that can be accessed, managed, and updated easily. It is designed to store large amounts of data efficiently and provide fast access to that data when needed. Below is an example of a database. https://i.imgur.com/IxKQsOo.png
A developer embeds a query in a high-level program to extract information from a database. This is an example of: Select one: A. database utility access. B. private key C.atabase programmatic access. D. database direct access.
D: Database direct access ODBC (Open Database Connectivity) Standard application programming interface for accessing database management systems.
Which of the following actions is the FINAL step in the standard troubleshooting methodology? Select one: A. Create a new theory of cause B. Research the problem online C. Impement preventive measures D. Documnet the soultion and cause
D: Documnet the soultion and cause, The standard troubleshooting methodology typically involves several steps, such as: Identify the problem Establish a theory of probable cause Establish a plan of action and implement a solution Verify the solution and full system functionality mplement preventive measures Document the solution and cause
A company is concerned with ensuring its databases are highly available. Which of the following can be used to increase database availability? Select one: A. Backups B. Prioritization C. Indexes D. Failover
D: Failover Failover is a technique that enables a system to automatically switch to a backup or standby system in the event of a primary system failure or outage. In the case of a database, a failover system can automatically take over the workload of the primary database, ensuring that users can continue to access and use the database even if the primary system fails.
A programmer needs to store output in a place that can be accessed as quickly as possible. The data does not need to remain persistent. Which of the following is the BEST option for storing the data? Select one: A. Relational database B. Solid state drive C. Memory D. Flat file
D: Flat file, Memory is faster, however, harder to access, Flat file, is the fastest to access. Does not need to remain persistent
A business would like to create an employee portal that employees will have access to when they are at work. The employees will not be able to connect to the portal from home without a VPN connection. Which of the following types of application does this describe? Select one: A. Internet application B. Local application C. Extranet application D. Intranet application
D: Intranet application An intranet application is a type of web application that is used exclusively within an organization or company. It is a private network that can only be accessed by authorized personnel and is designed to share information and resources within the organization.
Which of the following BEST explains the use of float over integer to store monetary values? Select one: A. It stores symbols B. It accepts negative values. C. It accommodates larger values. D. It supports decimals.
D: It supports decimals Float and integer are both data types used in programming languages to store numerical values. Floats can accommodate larger values than integers, this is not the main reason for using them to represent monetary values.
A program will request user input and perform an operation several times if the input is correct. Which of the following techniques BEST describes the fact that the operation is only performed if the input is correct? Select one: A. Modeling B. Branching C. Reuse D. Looping
D: Looping Looping is a programming technique that enables a program to execute a statement or set of statements repeatedly until a specified condition is met.
A company has installed an application that only requires a workstation to function. Which of the following architecture types is this application using? Select one: A. Two-tier B. Three-tier C. N-tier D. One-tier
D: One-tier One-tier architecture is also known as standalone architecture, where the entire application runs on a single machine, and no client-server architecture is involved. In this architecture, the application and the database reside on the same machine, and the user interacts with the application directly. This architecture is suitable for small applications that do not require network communication or multiple users.
A web developer wants to ensure that a new web application is not vulnerable to brute-force attacks. Which of the following best practices is MOST useful to meet this goal? Select one: A. Input validation B. System updates C. Login auditing D. Password lockout
D: Password lockout A brute-force attack is a trial-and-error method of guessing the correct password of a user account or web application by systematically trying every possible combination of characters until the correct password is found. A password lockout policy will help to prevent this type of attack by locking out the user account after a certain number of incorrect login attempts, thus preventing further guessing attempts.
A schema is a critical part of which of the following? Select one: A. NoSQL database B. Key/value database C. Document database D. Relational database
D: Relational database In a relational database, data is organized into tables, which are related to each other through common attributes or keys. The schema defines the structure and relationships of these tables, ensuring that data is stored and retrieved consistently and accurately.
A game developer is purchasing a computing device to develop a game and recognizes the game engine software will require a device with high-end specifications that can be upgraded. Which of the following devices would be BEST for the developer to buy? Select one: A. Game Console B. Laptop C. Workstation D. Server
D: Server Highly specilized computer (super computer)
Which of the following is an example of multifactor authentication? Select one: A. Hardware token and smartphone B. Password and passphrase C. Fingerprint and retina scan D. Smart card and PIN
D: Smart card and PIN, Multifactor authentication is a security system that requires users to provide two or more different authentication factors to access a system or data
Which of the following data types should a developer use when creating a variable to hold a postal code? Select one: A. Boolean Datatype B. Float Datatype C. Integer Datatype D. String Datatype
D: String Datatype A postal code is a combination of letters and/or numbers that represents a geographic area for mail delivery purposes. Since a postal code can include both letters and numbers, it cannot be represented by a Boolean data type (A) which can only hold two values (true or false), a float data type (B) which holds floating-point numbers with decimal places, or an integer data type (C) which can only hold whole numbers. A string data type (D) is a data type used to represent a sequence of characters, such as text. Postal codes are often represented as strings, as they can contain both letters and numbers.
In a mobile phone, which of the following wireless technologies is MOST likely to provide Internet connectivity? Select one: A. NFC. B. IR. C. Bluetooth D. VPN.
D: VPN VPN (Virtual Private Network) is a technology used in mobile phones to provide internet connectivity, especially when accessing sensitive information or using public Wi-Fi networks.
A technician is installing a new wireless network and wants to secure the wireless network to prevent unauthorized access. Which of the following protocols would be the MOST secure? Select one: a. WPA b. SSID c. WEP d. WPA2
D: WPA2, WEP, old/outdated/weak encryption -> WPA, okay encryption/decent security protocols -> WPA2 newest/most secure
