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NEW QUESTION 830
Which of the following can transmit graphics but not sound?
A. HDMI
B. FireWire
C. VGA
D. DisplayPort
Answer: C
Explanation:
VGA (Video Graphics Array) is an analog interface used between a computer and monitor or projector that transmits video signals. Unlike HDMI and DisplayPort, VGA does not support the transmission of audio signals. It only handles graphics, thus it is often used in situations where only video output is needed without audio.
NEW QUESTION 831
Which of the following is required for a cloud network?
A. Local applications.
B. Credentials.
C. Internet access.
D. Network infrastructure.
Answer: C
Explanation:
For a cloud network to function, internet access is essential. This connectivity allows users and devices to access cloud services and resources hosted remotely. Without internet access, the interaction with cloud-based applications and data storage would be impossible, making it a fundamental requirement for utilizing cloud services.
NEW QUESTION 832
Which of following PC components operates only as an input device?
A. External hard drive.
B. All-in-one printer/scanner.
C. Webcam.
D. Central processing unit.
Answer: C
Explanation:
A webcam operates strictly as an input device. Its primary function is to capture video and, in some cases, audio data, which it inputs into a computer system for processing or transmission. Unlike other devices listed, a webcam does not have output capabilities; it only sends data to the computer.
NEW QUESTION 833
In an effort to reduce costs, a company decides not to renew its contract for a secure shredding service. Which of the following risks should the management team most likely be concerned with if employees fail to properly dispose of documents according to security protocols?
A. Dumpster diving.
B. Snooping.
C. Unauthorized information alteration.
D. Social engineering.
Answer: A
Explanation:
Dumpster diving refers to the act of searching through a company’s trash to find confidential or useful information that has not been properly disposed of. If a company discontinues its secure shredding service and employees fail to adhere to secure disposal protocols, sensitive documents could be easily accessible in the trash, leading to potential security breaches.
NEW QUESTION 834
A network technician is working on the configuration of a SOHO router. After entering the IP address of the router, the technician uses a GUI to complete the final configuration steps. Which of the following configuration types is this an example of?
A. Web-based
B. IP-based
C. Driver
D. Plug-and-play
Answer: A
Explanation:
A web-based configuration utilizes a graphical user interface (GUI) accessible through a web browser. In the scenario described, the network technician accesses the router’s settings by entering its IP address into a browser and configuring it via a web-based GUI, a common method for configuring network devices, particularly in smaller networks like SOHO (Small Office/Home Office) environments.
NEW QUESTION 835
A developer is writing a program to process a long list of employees and apply a cost-of-living increase of 3.2% to all employees making less than $15 per hour. Which of the following pseudocode snippets provides the best solution?
A. If employeesalary is greater than $15 per hour employeesalary = employeesalary * 1.032.
B. For all employees in the list making less than $15 per hour employeesalary = employeesalary * 1.032.
C. If employeesalary is less than $15 per hour employeesalary = employeesalary * 3.2.
D. For all employees in the list making greater than $15 per hour employeesalary = employeesalary * 3.2.
Answer: B
Explanation:
This pseudocode snippet correctly implements the requirement to apply a cost-of-living increase to employees making less than $15 per hour. By using a loop (For all employees in the list), it ensures that every employee meeting the condition (making less than $15 per hour) will have their salary adjusted by multiplying it by 1.032. This approach efficiently processes each relevant entry just once and applies the necessary increase accurately.
NEW QUESTION 836
A programmer is tasked with providing a human-readable rough draft of output. Which of the following techniques would be used?
A. Flowchart.
B. Pseudocode.
C. Sequencing.
D. Network diagram.
Answer: B
Explanation:
Pseudocode is a high-level description of an algorithm or code that is used to outline a program in a way that is easily understood by humans without getting into the specifics of syntax in programming languages. It is often used for planning and discussing algorithms before coding begins. This makes it ideal for providing a rough draft of output or explaining how software processes should work.
NEW QUESTION 837
Which of the following is an example of a query language?
A. C++
B. Python
C. XML
D. SQL
Answer: D
Explanation:
SQL (Structured Query Language) is a domain-specific language used in programming and designed for managing and manipulating relational databases. It is used to perform tasks such as querying data, updating databases, and managing database structures. SQL is a standard tool for database management and manipulation, making it the correct answer as an example of a query language.
NEW QUESTION 838
Which of the following is the equivalent of 1 KB?
A. 0.01 googol
B. 1,000 bits
C. 8,000 bits
D. 8,000 bytes
Answer: C
Explanation:
1 KB (kilobyte) equals approximately 8,000 bits. This calculation is based on the understanding that 1 byte consists of 8 bits, and a kilobyte is made up of about 1,000 bytes. Therefore, multiplying these values together gives us 8,000 bits for 1 kilobyte.
NEW QUESTION 839
The finance department needs software that includes depreciation functionality for asset management. Which of the following types of software would best accomplish this goal?
A. Database.
B. Accounting.
C. Project management.
D. Spreadsheet.
Answer: B
Explanation:
Accounting software is specifically designed to manage financial transactions, including asset management functionalities such as calculating depreciation. This type of software supports various accounting processes, making it the most suitable choice for a finance department that needs to handle depreciation among other financial tasks.
NEW QUESTION 840
A user connects a wireless router to a home network and notices another wireless access point uses the same name. Which of the following should the user change?
A. Router default password.
B. Wireless channel.
C. Frequency.
D. Service set identifier.
Answer: D
Explanation:
The Service Set Identifier (SSID) is the network name for a wireless LAN. When a user notices another wireless access point using the same SSID, changing the SSID to a unique name can help avoid confusion and ensure that devices connect to the correct network.
NEW QUESTION 841
A user is purchasing from an online retailer. The user has entered all the required information and has clicked the “Submit” button, yet the page does not refresh, and the user does not get a confirmation. Which of the following might be the causes of the issue? (Choose two.)
A. Private browsing is enabled.
B. Extensions are out-of-date.
C. Proxy settings are incorrect.
D. An incompatible browser is being used.
E. A pop-up blocker is enabled.
F. An invalid certificate has been issued.
Answer: DE
Explanation:
An incompatible browser is being used: If the browser does not support the technologies or standards used by the online retailer’s website, it might fail to process the transaction properly, leading to issues with page refreshing and confirmation messages. A pop-up blocker is enabled: Some online purchasing processes may utilize pop-up windows to display confirmation messages. If a pop-up blocker is active, it might prevent these messages from appearing, causing confusion about the transaction’s completion.
NEW QUESTION 842
Which of the following elements is most important in order for data reports to have value?
A. Large sample sizes.
B. Daily data.
C. Frequent measurements.
D. Useful metrics.
Answer: D
Explanation:
The most important element for data reports to have value is the inclusion of useful metrics. Metrics that are relevant and appropriately targeted provide actionable insights and support decision-making processes. Large sample sizes, daily data, and frequent measurements contribute to data quality and detail but are only valuable if the data being measured is meaningful and aligned with the objectives of the analysis.
NEW QUESTION 843
Which of the following should be done first when working on a potential issue?
A. Implement a solution.
B. Escalate the issue.
C. Research the issue.
D. Gather information.
Answer: D
Explanation:
The first step when working on a potential issue should always be to gather information. This involves understanding the problem thoroughly by collecting data about the issue, such as symptoms, settings, and environmental conditions. Properly gathering information ensures that subsequent steps, such as research and resolution strategies, are based on a solid understanding of the problem, increasing the likelihood of an effective solution.
NEW QUESTION 844
Which of the following is best used to store many integers in one container?
A. Array
B. Function
C. Variable
D. Constant
Answer: A
Explanation:
An array is the best choice for storing many integers in one container. An array is a data structure that can hold a fixed number of elements, which are all of the same data type. It is especially useful for storing a collection of data items at contiguous memory locations, allowing easy access to the elements using an index. Arrays are fundamental in programming for organizing data, allowing for efficient storage and quick access.
NEW QUESTION 845
A technician is configuring a new Windows PC and needs to choose a filesystem that supports encryption. Which of the following is the technician most likely to choose?
A. NTFS
B. FAT32
C. HFS
D. ext4
Answer: A
Explanation:
NTFS (New Technology File System) is the filesystem most likely to be chosen when encryption support is required on a Windows PC. NTFS supports various features not available in other file systems like FAT32, such as file-level security, data compression, and encryption. It is the default file system for Windows operating systems and is suitable for modern uses that require enhanced security features, including encryption.
NEW QUESTION 846
A technician is troubleshooting an important application that is crashing every hour. The technician suspects that the installation is corrupt and needs to be reinstalled. Which of the following steps should be performed next?
A. Verify full system functionality.
B. Research the knowledge base.
C. Identify the problem.
D. Test the theory.
Answer: B
Explanation:
Before proceeding with reinstallation, the technician should first research the knowledge base to gather information about similar issues and recommended solutions. This step ensures that the decision to reinstall is supported by documented cases or official recommendations and might provide alternative solutions that are less disruptive or more effective.
NEW QUESTION 847
A technician is investigating the who, what, when, where, and why of an issue. Which of the following steps of the troubleshooting methodology is the technician currently at?
A. Identifying the problem.
B. Establishing a plan of action to resolve the issue.
C. Researching the issue.
D. Testing the theory to determine the cause.
Answer: C
Explanation:
When a technician is investigating the who, what, when, where, and why of an issue, they are at the step of researching the issue. This involves gathering all relevant information about the problem to ensure that the subsequent steps in the troubleshooting methodology are informed and effective.
NEW QUESTION 848
Which of the following is something that would likely need a copyright?
A. A new commercial software program.
B. A company’s brand name.
C. A copy of a business contract.
D. An idea for computer communication.
Answer: A
Explanation:
A new commercial software program would likely need a copyright because it is a tangible expression of creativity and intellectual effort in the form of code and user interface design. Copyrights protect such creative works from being copied or used without permission, ensuring that creators or owners have exclusive rights to distribute and modify their creations.
NEW QUESTION 849
Which of the following wireless communication technologies requires devices to be within 6in (15.24cm) from each other?
A. NFC
B. Infrared
C. Wi-Fi
D. Bluetooth
Answer: A
Explanation:
NFC (Near Field Communication) technology requires devices to be within 6 inches (15.24 cm) of each other to communicate. This short range facilitates secure communications for tasks such as contactless payments, quick data transfers, and connection setups between devices.
NEW QUESTION 850
An executive is sharing a series of slides with coworkers in a conference room. Which of the following applications is the executive most likely to use?
A. Presentation software.
B. Conferencing software.
C. Project management software.
D. Visual diagramming software.
Answer: A
Explanation:
In a scenario where an executive is sharing slides in a conference room, the most likely application used is presentation software. Presentation software allows users to create slideshows that typically include a variety of elements such as text, images, and videos, which are ideal for delivering information clearly and engagingly during meetings or presentations. Examples include Microsoft PowerPoint, Google Slides, and Apple Keynote.
NEW QUESTION 851
Which of the following utilities has the ability to remove drivers and scan for hardware changes?
A. Performance Monitor
B. Disk Management
C. Event Viewer
D. Device Manager
Answer: D
Explanation:
Device Manager in Windows is a system utility used to view and control the hardware attached to the computer. It allows users to uninstall, disable, and update device drivers, as well as scan for hardware changes. This utility is essential for managing the interactions between a computer’s operating system and its hardware components.
NEW QUESTION 852
Which of the following data types would be best for storing data representing a phone number?
A. String
B. Integer
C. Float
D. Char
Answer: A
Explanation:
Phone numbers, although made up of digits, are best stored as strings in most programming and database contexts. This is because phone numbers may contain leading zeros, separators (such as dashes or spaces), and international codes that are not used in calculations as numeric values would be. Storing phone numbers as strings preserves the exact formatting and data integrity.
NEW QUESTION 853
Which of the following is the largest storage capacity?
A. 1 PB
B. 100 TB
C. 9,000 GB
D. 9,900 MB
Answer: A
Explanation:
Comparing storage capacities requires understanding the magnitude of each unit. The hierarchy from smallest to largest is megabytes (MB), gigabytes (GB), terabytes (TB), and then petabytes (PB):
1 PB (petabyte) = 1,000 TB (terabytes)
100 TB = 100 terabytes
9,000 GB = 9 terabytes
9,900 MB = 0.0099 terabytes
Therefore, 1 petabyte (PB) is significantly larger than the other options listed.
NEW QUESTION 854
Which of the following OS features would be best to use to remove unnecessary programs?
A. Application management.
B. Disk management.
C. Process management.
D. Memory management.
Answer: A
Explanation:
The best way to remove unnecessary programs from a computer system using the operating system’s features is through ‘Application management.’ This feature typically provides a user interface that allows users to view, manage, and uninstall applications installed on the system. Using this feature, you can select the programs that are not needed and choose to uninstall them, thereby freeing up system resources and storage space.
NEW QUESTION 855
After creating a database, which of the following would a developer most likely use to put data in the database?
A. UPDATE
B. ALTER
C. INSERT
D. SELECT
Answer: C
Explanation:
To add data into a database after its creation, the SQL command ‘INSERT’ is used. This command allows you to insert data into specific columns of a table in the database. The syntax of the INSERT command specifies the table to insert into, the columns to populate, and the values to enter into those columns. This is fundamental in database management and manipulation, critical for developers working with databases.
NEW QUESTION 856
Which of the following would be the most secure password reset process?
A. Ask users for their date of birth over the phone and reset their password.
B. Ask users to answer custom questions and send reset codes via text.
C. Ask users for their mother’s maiden name and email them a reset link.
D. Ask users for their phone number and call them back with a PIN.
Answer: B
Explanation:
The most secure password reset process among the given options is to ask users to answer custom questions and then send a reset code via text. This method combines something the user knows (the answer to a custom question) with something the user has (access to a personal device that can receive a text), which aligns with the security principle of two-factor authentication, increasing the security of the reset process.
NEW QUESTION 857
Which of the following describes plug-and-play installation?
A. Managed driver installation.
B. Assisted driver installation.
C. Automatic driver installation.
D. Manual driver installation.
Answer: C
Explanation:
Plug-and-play installation refers to the technology that allows the operating system to detect and configure new devices automatically as soon as they are connected to the computer, without the need for user intervention. This typically involves the automatic installation of the necessary drivers that enable the operating system to communicate with the hardware device, making the device ready for use quickly and efficiently.
NEW QUESTION 858
When a user types a web page name in an internet browser address field, this information is translated to an IP address behind the scenes. Which of the following is being used?
A. SMTP
B. DHCP
C. WPA
D. DNS
E. WEP
Answer: D
Explanation:
DNS (Domain Name System) is used when a user types a webpage name (like www.example.com) into a browser’s address field. DNS servers translate this domain name into the corresponding IP address so that the browser can load the appropriate website. This translation is essential for navigating the internet because web browsers communicate over IP addresses, not domain names.
NEW QUESTION 859
Which of the following troubleshooting steps happens before establishing a theory of probable cause?
A. Document the lessons learned.
B. Verify full system functionality.
C. Identify the problem.
D. Implement the solution.
Answer: C
Explanation:
The step that happens before establishing a theory of probable cause in the troubleshooting process is identifying the problem. This involves gathering information from the user, observing the symptoms, and systematically ruling out factors that may not be relevant. This step is crucial as it sets the foundation for developing an accurate theory of what might be causing the issue.
NEW QUESTION 860
Which of the following license types would be most cost effective for an organization if all users need to access software but not on a consistent basis?
A. Site
B. Single-use
C. Concurrent
D. Device
Answer: C
Explanation:
A concurrent license would be most cost-effective for an organization where all users need access to software but not at the same time. Concurrent licenses allow a certain number of users to access the software simultaneously, regardless of who those users are. This type of licensing is efficient and economical for environments with variable software usage patterns.
NEW QUESTION 861
Which of the following explains the concept of database scalability?
A. The ability to move from one vendor database to another.
B. The ability to increase resources easily as demand grows.
C. The ability to move from a flat file database to a relational database.
D. The ability to document the database schema automatically.
Answer: B
Explanation:
Database scalability refers to the capability of a database system to handle a growing amount of work, or its potential to be enlarged to accommodate that growth. Option B, the ability to increase resources easily as demand grows, is the correct answer because scalability involves expanding the capacity of the database as the data volume or the number of users increases, without compromising performance.
NEW QUESTION 862
A programmer creates an object to retrieve customer names from a database. Which of the following best describes the object that is retrieving the names?
A. Variable
B. Attribute
C. Method
D. Looping
Answer: C
Explanation:
In object-oriented programming (OOP), a method is a function associated with an object and is used to perform operations on that object. When a programmer creates an object to retrieve customer names from a database, the operation that retrieves the names is typically encapsulated in a method. This method might be called something like getCustomerNames() and is responsible for querying the database and returning the results.
NEW QUESTION 863
A technician is upgrading a company’s Wi-Fi from 802.11a to support a range of 115ft (35m) indoors and a speed of 700Mbps. Which of the following should the technician select for the upgrade?
A. 802.11ac
B. 802.11b
C. 802.11g
D. 802.11n
Answer: A
Explanation:
The 802.11ac standard supports higher data rates, improved capacity, and better performance in dense environments. It offers significant improvements over previous standards like 802.11a, 802.11b, 802.11g, and 802.11n, with support for speeds up to several gigabits per second under optimal conditions. For a range of 115ft indoors and a speed of 700Mbps, 802.11ac is the most suitable choice due to its enhanced capabilities to handle higher speeds and greater ranges than its predecessors.
NEW QUESTION 864
Which of the following is an example of PII? (Choose two.)
A. Full name.
B. Date of birth.
C. Employment status.
D. School attended.
E. Social media username.
F. City of residence.
Answer: AB
Explanation:
Personally Identifiable Information (PII) refers to data that can be used to identify, contact, or locate a single person, or to identify an individual in context. A full name and date of birth are classic examples of PII because they can directly identify a person. Other options listed may relate to a person’s life but do not specifically and directly identify an individual in most contexts.
NEW QUESTION 865
A user has an HDD that is almost at full capacity. Which of the following operating system features should be used to free up some space without deleting any files?
A. Compression
B. Encryption
C. Journaling
D. Formatting
Answer: A
Explanation:
To free up space on an HDD without deleting files, using the operating system’s compression feature is the best approach. Compression reduces the size of files on the disk by using algorithms to minimize the space they take up, thus freeing up storage capacity while keeping the files accessible.
NEW QUESTION 866
Which of the following connection types provides the fastest internet speed?
A. Cellular.
B. Asymmetric DSL.
C. Symmetric DSL.
D. Fiber to the curb.
Answer: D
Explanation:
Among the listed internet connection types, ‘Fiber to the curb’ (FTTC) generally provides the fastest speeds. FTTC involves running fiber-optic cables close to the curbs near homes or businesses, with the remaining connection to the premises being made through traditional coaxial or ethernet cabling. This provides higher speeds compared to traditional DSL (Digital Subscriber Line) or cellular connections.
NEW QUESTION 867
A company allows employees to use their own devices for work. Which of the following is the best security method for such devices?
A. Update the device software.
B. Enable passwords.
C. Enable host IDS.
D. Remove browser cookies.
Answer: A
Explanation:
The best security method for employees who use their own devices for work is to keep the device software updated. Regular software updates include security patches that address vulnerabilities, reducing the risk of exploits. This preventative measure is crucial for maintaining the security integrity of not only the individual devices but also the corporate network they connect to.
NEW QUESTION 868
Which of the following would most likely be used to verify a user is following an AUP?
A. Application logs.
B. Security questions.
C. Access controls.
D. Biometric scans.
Answer: A
Explanation:
Application logs are used to record events and actions within software applications, including user activities. These logs can be analyzed to verify whether a user is following an Acceptable Use Policy (AUP) by providing evidence of compliance or non-compliance based on recorded actions. This method is effective for auditing and ensuring that users are adhering to organizational policies regarding the use of IT resources.
NEW QUESTION 869
Which of the following methods of cooling is most commonly used for desktops?
A. Active
B. External
C. Cryogenics
D. Water
Answer: A
Explanation:
Active cooling is the most common method used for cooling desktop computers. It involves the use of fans and heatsinks to dissipate heat generated by the computer’s components, particularly the CPU. Active cooling systems are designed to pull warm air away from the processor and other crucial components, then expel it from the chassis to maintain optimal operating temperatures.
NEW QUESTION 870
A programmer is modifying the code of an existing application to include an additional subroutine that is needed for a new product line. Which of the following will most likely be added to the existing code?
A. Branching.
B. Looping.
C. Pseudocode.
D. Syntax errors.
Answer: A
Explanation:
Branching in programming refers to the use of decision-making structures within the code, which allows the execution flow to change based on conditions. When a programmer needs to add a new subroutine that operates under specific conditions within an existing application, branching (such as if-else or switch-case statements) would be used to integrate this new functionality seamlessly. This allows the application to execute different sections of code based on the requirements of the new product line.
NEW QUESTION 871
Which of the following storage types presents the most likely security risk?
A. Flash
B. NAS
C. SSD
D. Cloud
Answer: D
Explanation:
Cloud storage presents the most likely security risk among the options provided. While all storage types have their own security concerns, cloud storage is often seen as more risky because it involves storing data on servers managed by third parties. This means that the data is out of the direct control of the user, and security is largely dependent on the measures put in place by the cloud service provider. Additionally, data in the cloud can be accessed from anywhere with an internet connection, increasing the potential attack surface.
NEW QUESTION 872
Which of the following would most likely be used to protect the intellectual property of printed materials?
A. Trademark.
B. Cease and desist.
C. Patent.
D. Copyright.
Answer: D
Explanation:
Copyright is the most likely form of protection used for the intellectual property of printed materials. Copyright law protects original works of authorship, including literary, dramatic, musical, and artistic works, such as poetry, novels, movies, songs, computer software, and architecture. This would include the text and images within printed materials. A copyright gives the owner the exclusive right to reproduce the work, prepare derivative works, distribute copies, and display the work publicly.
NEW QUESTION 873
Which of the following units of storage would be used to measure the amount of RAM on a desktop computer?
A. TB
B. GB
C. MB
D. KB
Answer: B
Explanation:
RAM (Random Access Memory) on a desktop computer is typically measured in gigabytes (GB). RAM is a critical component of a computer’s performance, as it temporarily stores data that the CPU uses for processing tasks. The use of gigabytes (GB) as a unit of measurement for RAM has become standard as modern computing demands have increased. RAM sizes generally range from 4 GB to 32 GB or more in typical desktop computers, depending on the system’s requirements.
NEW QUESTION 874
A software developer has created a program for the accounting department. The finance department requests the same program but requires some changes to the code to meet its needs. Which of the following should be performed?
A. Compiling
B. Looping
C. Sequencing
D. Branching
Answer: D
Explanation:
In programming, branching refers to making decisions based on certain conditions, which alters the flow of execution within a program. When a software developer needs to modify code to accommodate specific conditions, like the needs of the finance department, branching is applied. This allows the program to execute different sections of code depending on the circumstances (e.g., “if-else” statements). It is one of the core concepts for modifying or adapting existing programs for different functional requirements.
NEW QUESTION 875
Which of the following is an advantage of using locally saved files?
A. Readily shareable with others.
B. No reliance on local backups.
C. Immediately accessible by others on the cloud.
D. No dependence on network connection.
Answer: D
Explanation:
One of the primary advantages of using locally saved files is that they do not depend on a network connection. This means that users can access their files even when there is no internet or network connectivity, offering greater control and reliability when working offline. Locally saved files are stored directly on the device’s hard drive or SSD, making them accessible at any time without needing external network resources.
NEW QUESTION 876
A company is looking at locations for a new datacenter. The Chief Executive Officer (CEO) has stated that the new datacenter should be at least 500mi (805km) from the existing datacenter so one natural disaster will be unlikely to impact both datacenters. Which of the following is this best an example of?
A. Confidentiality concerns.
B. Integrity concerns.
C. Replication concerns.
D. Availability concerns.
Answer: D
Explanation:
This scenario represents availability concerns. The CEO’s decision to place the new data center 500 miles from the existing one is intended to ensure that both datacenters remain operational in case of a natural disaster. Ensuring data availability means that systems and information remain accessible, even in the event of a disaster, by having geographically separated redundancy.
NEW QUESTION 877
Which of the following should privacy expectations on a company intranet be limited to?
A. Precedents.
B. HR policy.
C. Word of mouth.
D. System usage agreements.
Answer: D
Explanation:
Privacy expectations on a company intranet should be governed by the system usage agreements or acceptable use policies (AUPs) that employees are required to sign. These agreements outline the limits and expectations regarding employee privacy, use of the company’s IT systems, and monitoring practices. Companies often make it clear that any data or activity on the intranet may be monitored, limiting personal privacy expectations in the workplace.
NEW QUESTION 878
Which of the following is the main purpose for a MAC address to identify?
A. A user.
B. A piece of hardware.
C. An IP address.
D. A network.
Answer: B
Explanation:
A MAC (Media Access Control) address is a unique identifier assigned to network interfaces for communication on the physical network segment. It is used to identify a specific piece of hardware, such as a network card or a network interface within a device. MAC addresses are crucial in ensuring the proper routing of data on local networks, functioning at the data link layer (Layer 2) of the OSI model.
NEW QUESTION 879
Which of the following operating systems is best used in creating and managing virtual machines?
A. Mobile
B. Hypervisor
C. Embedded
D. Firewall
Answer: B
Explanation:
A hypervisor is the best operating system for creating and managing virtual machines (VMs). It allows multiple operating systems to run simultaneously on a single physical machine by abstracting hardware resources and allocating them to VMs. There are two types of hypervisors: Type 1 (bare-metal) and Type 2 (hosted). Examples include VMware ESXi, Microsoft Hyper-V, and Oracle VM VirtualBox.
NEW QUESTION 880
A technician has established a plan of action. Which of the following should the technician do next?
A. Verify system functionality.
B. Identify preventive measures.
C. Document the findings.
D. Implement a solution.
Answer: D
Explanation:
After a technician has established a plan of action, the next step in the troubleshooting process is to implement the solution. This involves executing the plan that was carefully crafted to resolve the issue. Following this, the technician would then verify system functionality and take preventive measures if necessary, but implementation comes immediately after planning.
NEW QUESTION 881
A user works at a health insurance company. Which of the following is the best method for ensuring a customer’s personal information is kept confidential when it needs to be shared with another authorized employee?
A. Sending it as an encrypted email to the other employee.
B. Putting it in a shared drive on the company’s network.
C. Printing it out and giving it to the employee.
D. Putting it on the company’s cloud document site.
Answer: A
Explanation:
The best method for ensuring a customer’s personal information is kept confidential is to send it as an encrypted email. Encryption ensures that the data is securely transmitted and only accessible by the intended recipient. This is crucial in industries such as health insurance, where protecting sensitive personal information is a legal requirement under regulations like HIPAA (Health Insurance Portability and Accountability Act).
NEW QUESTION 882
An accounting firm needs to allow users to update records simultaneously without errors. Which of the following best meets the firm’s needs?
A. Flat file.
B. Document.
C. Database.
D. Spreadsheet.
Answer: C
Explanation:
A database is the best solution for allowing multiple users to update records simultaneously without causing errors. Databases, especially relational databases like MySQL, PostgreSQL, and Microsoft SQL Server, are designed for concurrent access, ensuring data consistency and integrity through mechanisms like transaction management and locking.
NEW QUESTION 883
Which of the following software types is best suited for storing large amounts of data in a way that allows for concurrent, indexed access?
A. Spreadsheet software.
B. Visual diagramming software.
C. Database software.
D. Presentation software.
Answer: C
Explanation:
Database software is specifically designed to store large amounts of data and provide efficient, concurrent, and indexed access. Databases support multiple users accessing and manipulating the data at the same time without conflicts, and they organize data in structured tables that allow for fast querying through indexing mechanisms. Examples include MySQL, Microsoft SQL Server, and Oracle Database.
NEW QUESTION 884
A user is trying to set up a new wireless access point. Which of the following should the user do first?
A. Change the SSID to a unique name.
B. Change the default password.
C. Enable WPA2 encryption.
D. Enable the highest available wireless standard.
Answer: B
Explanation:
The first thing a user should do when setting up a new wireless access point is to change the default password. Default passwords are well-known and pose a significant security risk. Changing this ensures that unauthorized individuals cannot easily gain access to the access point’s management interface.
NEW QUESTION 885
Given the following pseudocode:
arduino
Copy code
WHILE X < 12
print “Counting”
X += 1
If X=7, which of the following is the number of times the message will be displayed?
A. Five
B. Seven
C. Eleven
D. Twelve
Answer: B
Explanation:
In the given pseudocode, the message “Counting” is printed in a loop while X is less than 12. The variable X starts incrementing by 1 each time through the loop. If X starts at 0, the loop will run and display the message 7 times before X reaches 7. The loop starts with X = 0. For X values from 0 to 6, the message is printed, making a total of 7 times before X becomes 7 and the loop halts.
NEW QUESTION 886
An engineer has been assigned the task of establishing network connectivity in a remote area where telephone lines are readily available but other infrastructure is limited. Which of the following technologies would be the best solution?
A. Cable.
B. Fiber optic.
C. Wireless network.
D. DSL.
Answer: D
Explanation:
DSL (Digital Subscriber Line) is the best solution when telephone lines are available in a remote area but other network infrastructures, like cable or fiber, are limited. DSL uses existing telephone lines to provide internet access and is often a cost-effective solution in areas with limited connectivity options.
NEW QUESTION 887
Which of the following is the least expensive way for users at a large company to load a 2GB spreadsheet quickly?
A. Buy faster networking switches.
B. Upgrade the operating system and applications.
C. Move the file to a shared database.
D. Add more RAM to each workstation.
Answer: D
Explanation:
Adding more RAM to each workstation is the least expensive and most effective way to improve the performance of loading large files like a 2GB spreadsheet. RAM directly impacts how much data a workstation can hold in memory for fast access, and increasing it will help the spreadsheet load and process more quickly. Other options, like upgrading switches or moving to a shared database, may be more costly or less effective.
NEW QUESTION 888
Which of the following should a technician do to fix stability issues on a workstation?
A. Install a malicious software analyzer.
B. Install a firewall.
C. Install browsing controls.
D. Install updates.
Answer: D
Explanation:
Installing updates is one of the best steps to address stability issues on a workstation. Updates often contain patches for known bugs, security vulnerabilities, and performance improvements that can significantly enhance system stability. Keeping both the operating system and applications up to date is a standard best practice in IT maintenance.
NEW QUESTION 889
Which of the following are most likely to have a GUI? (Choose two.)
A. PowerShell
B. Windows
C. Command Prompt
D. macOS
E. Z shell
F. Bash
Answer: BD
Explanation:
Both Windows and macOS are operating systems with graphical user interfaces (GUIs). A GUI allows users to interact with the system through graphical elements like icons, windows, and menus, making it user-friendly. These interfaces are essential for most users who prefer visual interaction over text-based commands.
NEW QUESTION 890
Which of the following allows network traffic to pass through it and filters specific packets?
A. Switch
B. Access Point
C. Modem
D. Firewall
Answer: D
Explanation:
A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It allows or blocks specific packets based on these rules, ensuring that only authorized traffic passes through while filtering out potentially harmful data.
NEW QUESTION 891
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