Free Computers and Technology Practice Questions - Improve Your Skills

a faulty sensor or a bad network connection can result in or iot sensor data that lacks a time stamp indicating when the reading occurred.
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the strict mutual exclusion within a monitor makes the bounded-buffer monitor of the previous exercise mainly suitable for small portions.
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is when an adversary attempts to achieve user authentication without access to the remote host or to the intervening communications path. O host attack O client attack O Trojan horse attack eavesdropping attack
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A technician determines that an older network hub that connects 24 workstations is performing poorly due to excessive network collisions. Which of the following network devices would be the BEST replacement?BridgeSwitchRouterPatch panel
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dell's approach to personal computer manufacturing is to use a product focus, which gives the company its low-cost competitive advantage. T/S
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The method printf is used the same way as the method println but has the added feature that allows you to add formatting instructions. T/F
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Application software for an information system is usually a series of pre-programmed software modules supplied by a software publisher. t/f
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file checker programs can help you track a large number of files on your system, alerting you to changes that you did not expect.
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While performing a port scan of your organization, you discover an Ubuntu-based system with TCP port 65123 open on it. When you connect to the port using Telnet, all you see if a promt that looks like ##. You try typing a few commands and notice that you are able to do almost anything on the system, including displaying the contents of /etc/shadow. What did you just discover on this Ubuntu-based system?A. SpywareB. FilewareC. Remote-access softwareD. BackdoorD. Backdoor
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When searching for an app or extension, check out the ___________ to learn from other users' experiences with that app or extension.Reviews
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Which expressions for YYY and ZZZ correctly output the indicated ranges? Assume int x's value will be 0 or greater. Choices are in the form YYY / ZZZ.if (YYY) {printf("0-29");}else if (ZZZ) {printf("30-39");}else {printf("40+");}a.x < 29 / x >= 29b.x < 30 / x >= 30c.x < 30 / x < 40d.x > 29 / x > 40Answer: c
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________ hackers are security experts that are paid to hack systems to find security holes for the purpose of preventing future hacking.O Black-hatO Gray-hatO Red-hatO White-hatAnswer: White-hat
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Identify which of the following sentences includes a "comma usage" error.There are many arguments for why the Roman Empire collapsed, but one radical theory suggests that the Roman's use of lead cooking pots poisoned many generations of the population, causing birth defects and suppressing their collective IQ.If the snowstorm falls with more than 12 inches of snow, then the highway patrol will shut down the interstate.My older brother played football in middle school, ran track in high school, and competed in marathons in college.Three new technologies that will advance wearable computing include virtual reality, augmented reality and mixed reality.
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a third-party vendor created an unmanaged lightning web component. the salesforce administrator wishes to expose the component only on record page layouts. which two actions should the developer take to accomplish this business objective? choose 2 answers specify lightningcommunity page as a target in the xml file. ensure isexposed is set to true on the xml file. specify lightningcommunity page layout as a target in the xml file. specify lightning recordpage as a target in the xml file. see all questions back next question
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charmaine was required to take an excel spreadsheet test as part of her application for an executive assistant position. this control is part of the area.
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Programs that perform business functions, such as general ledger and accounting, are examples of ________.a) application softwareb) system softwarec) firmwared) operating systems
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T/F. one reason to apply one transition to one slide and a different transition to all of the other slides in the presentation is to draw attention to the slide that has a different transition applied to it.
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g part 2: designing a dimensional (star) model and include the following: design the dimensions and the fact load the dimensions and the fact with relevant data from the operational database you designed in part 1, making sure to capture all of the queries. write a query in sql to get the quantities of the sold products on wednesday in the category footwear provided by vendor pacific gear within the tristate region between the 1st and the 2nd quarter of 2013. capture the query and the results.
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write a statement that creates a list with the following strings: 'einstein', 'newton', 'copernicus', and 'kepler'.
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based on computer modeling of climate change, the current increase in temperatures cannot be attributed to natural causes alone.
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Which of the following key VPN protocols used today is the main alternative for a VPN solution that does not leverage an IPSec solution?Internet Engineering Task Force (IETF)Authentication Header (AH)Secure Sockets Layer (SSL)/Transport Layer Security (TLS)Layer 2 Forwarding (L2F) Protocol
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codes from icd 10 cm a00.0 through t88.9 and z00 through z99.8 are reported to identify diagnoses, symtoms, conditions, problems
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the navigation pane and the feature allow one to move to a specific location within a document. [move to specific locations and objects
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select the statement which best describes the application of observation and analysis procedures when troubleshooting complex circuits.
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