IT Concept and Terminology

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1. A developer is writing a program that will store the value of a single character. Which of the following data types will work BEST to store this value?

• Single
• Char
• String
• Boolean

2. Which of the following provides a computer system with the ability to retrieve and manipulate data at a future time?

• Storage
• Transistor
• Processing
• Microchip

3. A system administrator has been troubleshooting a problem with a database server not providing the information necessary to generate reports from a customer application. The administrator has tried testing several theories, but nothing seems to resolve the issue. Which of the following describes the MOST effective action the administrator should take next to try to resolve the problem?

• Research the company knowledge base and the internet.
• Escalate the problem to the database engineer.
• Keep a record of the testing attempts to include in the action plan.
• Consult with other system administrators in the company.

4. One option that a computer has for the information gathered in data processing is to return information to the user. Which of the following BEST describes this process?

• Speaker
• Input
• Peripheral device
• Output

5. A network host has an IPv4 address of 192.168.12.155. Which of the following notational systems is used to represent this IP address?

• Decimal
• Hexadecimal
• Octal
• Binary

6. A software developer is creating a variable to hold whole numbers and will perform numeric operations on the values stored in that variable. Which of the following data types is the BEST for this purpose?

• Boolean
• String
• Float
• Integer

7. Identifying the problem is the first step in CompTIA's troubleshooting model. Which of the following are tasks associated with this step? (Select three.)

• Question users
• Duplicate the problem
• Identify symptoms
• Consider multiple approaches
• Escalate as necessary

8. You're troubleshooting a computer running Windows 10. The operating system has halted and a blue screen has been displayed on the monitor with an error message. Which of the following is the MOST likely first step that should be taken in troubleshooting the issue?

• Remove all memory modules and replace them one at a time until the error reappears.
• Check the voltage levels on the DC side of the power supply.
• Search for the error in Microsoft's knowledgebase.
• Uninstall the last application or system update that was installed.
• Update the BIOS.

9. Dave, a videographer, wants to purchase a network switch that will improve the performance of transferring video from his video editing workstation to a backup server. Which of the following transfer rates currently available to consumers is the FASTEST for network switches?

• Tbps
• Gbps
• Kbps
• Mbps