CompTIA Networking Practice Test 3
________ is a suite of security extensions for an Internet service that converts domain names to IP addresses.
Correct answer: DNSSEC
A suite of security extensions for an Internet service that translates domain names into IP addresses is known as DNSSEC.
In the event viewer, what symbol is used to signify a warning?
Correct answer A yellow triangle with an exclamation mark.
What tool would you use to secure the RJ45 connector to the ethernet connection's wiring?
A connector is typically crimped as the last step in the process after creating an ethernet cable. This securely tightens down the wiring to the correct spots inside the connector for electrical signals to pass.
For a customer, you're analyzing cryptographic algorithms. The customer has a specific requirement for shared secret encryption. To meet the requirement, you must offer an encryption algorithm. Which algorithm do you think is the best?
Correct answer: Symmetric key algorithm
A shared secret is required for a symmetric key algorithm. The shared secret, which permits encryption and decryption, is held by each communication party. A shared key isn't used by the other algorithms.
A cryptographic hardware component capable of securely storing data such as passwords and keys is referred to by which of the following acronyms?
Correct answer: TPM
The Trusted Platform Module (TPM) is a chip that is integrated in the motherboard of a device. TPMs allow devices to store essential artifacts such as passwords and cryptographic keys in a secure manner.
Adrian is a data scientist who spends a lot of time on his desktop computer playing around with large data file. Adrian hears a very loud clicking noise as he tries to pull up one particularly large file. What does this mean?
Typical hard drives consist of several moving parts required to read and write data. Loud clicking noises usually indicate one of these components inside the drive has failed. Constantly having to read extremely large file sizes could potentially accelerate hard drive failure.
What is the procedure for setting up Remote Desktop for Windows 7?
The correct answer Remote desktop is installed by default.
"Microsoft Office Communications Server 2007 R2 servers, unified communications clients, and unified communications applications have been implemented at Company ABC. They are presently in the process of moving from solution to support.
What is the name of this project phase?"
Correct answer: Operations
The operations phase is when you manage your Microsoft Office Communications Server 2007 R2 servers, unified communications clients, and unified communications applications.
Jay has owned his computer for quite some time and was just telling a friend about how dependable it was. He tries to turn on his computer the next morning, but nothing happens. He double-checks that all cords are plugged in, but it still doesn't work. What could the problem be?
A computer with no power will not turn on. This could be caused by issues with the power supply inside the computer case, or issues with power coming from the outlet. Even if the cord is plugged in, either of these locations could be lacking in power, thus there would be no transfer of power.
What is the process for removing the Windows Vista sidebar from the desktop?
Correct answer Right-click on the sidebar, select properties and then uncheck the Start Sidebar when Windows starts.
After connecting 100 ethernet cables for your new workplace, you discover that one of the PCs to which you connected them appears to be unconnected. You need to locate the other end of the cable in the data closet, but you forgot to name the cables. What tools could you use to locate the cable's other end?
By plugging in a tone generator at the jack of one end of the cable, you can find the other end by waving a toner probe around the area you think it could be. A loud tone noise will generate when you have found the end of the cable.
Billy enjoys music and recently borrowed a USB drive from a friend to transfer a new record to his computer. After he's finished, he leaves the USB drive plugged in and turns the computer off for the night. When he tries to start his computer the next day, he gets an error screen that says "OS Not Found." What could the issue be?
The computer sets up the OS boot sequence in the BIOS. It lists the order in which it should look for an operating system. If the USB drive is listed in a higher priority, it will check here first for the system files. If none are found, or if they are corrupted, it may display this message.
Jack is an avid gamer who spends many hours on his computer playing the latest World of Warcraft installment (WoW). He's been playing for an incredible 36 hours straight during this session! He catches a whiff of a burning smell coming from his computer and turns it down right away. What exactly is the issue?
Burning smells usually indicate hardware that has burned out or a bad capacitor. To protect other components of your computer from potential damage, it is best to completely power off your machine until you can investigate the cause.
Andrea is enjoying on her new desktop computer when the computer abruptly shuts down. She double-checks that the power cords are still in place, which they are. Her parents inform her that the power outlet she is using has always created problems, so she feels she should check the power supply in her computer. What device could she use to double-check both voltages?
A multimeter would be able to check voltage readings from both the power outlet and power supply. This would help narrow down the source of any power issues. A power supply tester’s intended use is strictly to test the power supply unit.
When a user reports that the printer has failed to print a document, what would you do first?
Correct answer Have the user check to see if the printer is offline
In Windows Vista, how do you install an earlier version of the system registry?
Correct answer Open System Tools located in All Programs, Accessories, and then select System Restore.
Ntbackup is supported by which OS systems?
NTBackup (or Windows Backup) is the built-in backup application introduced in Windows NT 3.51 and included in Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003.
Where would you look to find out how many times an app has failed to load?
Performance Monitor is a system monitoring program introduced in Windows NT 3.1. It monitors various activities on a computer such as CPU or memory usage. This type of application may be used to determine the cause of problems on a local or remote computer by measuring the performance of hardware, software services, and applications
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CompTIA Operational Practice Test #1
