Computers and Technology Quiz & Practice Tests - Test Your Skills

if you were implementing a bufferpool, and you expected disk blocks to be accessed more-or-less sequentially, which buffer replacement scheme would you choose?
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you suspect a password was not set for this account. what command should you use to investigate linux
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database management 20.11. discuss how serializability is used to enforce concurrency control in a database system. why is serializability sometim
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protecting computers, hard disks, databases, and other computer equipment from unauthorized internet access can be categorized as what kind of security area?
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when a remote pilot-in-command and a visual observer define their roles and responsibilities prior to and during the operation of a small ua is a good use of
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which statement is true about running a java program on a different cpu? group of answer choices you can take code that has been generated by the java compiler and run it on different cpus. you need to compile the java program for each cpu. you need different java source code for each cpu. you cannot run the program on a different cpu because java, being a high-level programming language, is machine dependent.
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which of the following is true regarding inheritance? group of answer choices a superclass can force a programmer to override a method in any subclass created from it. when creating a subclass, all methods of the superclass must be overridden. a superclass cannot prevent a programmer from overriding a method in any subclass created from it. when creating a subclass, no methods of a superclass can be overridden.
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you have been called in to a remote site to troubleshoot a problem with a process that needs to be terminated. you are taken to the workstation with the problem and immediately realize that it is an implementation of linux you have never worked with before. which option would you use with the kill utility at the command prompt to see the valid signals available with this linux system you're not familiar with?
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the ! directory was developed to organize the web before the development of search engines. what method did ! use? group of answer choices systematic organization ordering using algorithms using the wisdom of the crowds
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you have been asked by your boss to set up a device configuration profile in intune to allow your users to be able to reset their own passwords. which device configuration profile option should you configure in microsoft intune?
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scott has just completed installing windows 8.1 and needs to install several applications on the computer before returning it to his client. what should scott check prior to installing the applications? (select all that apply.)
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you are studying for the cisco ccent certification and are visualizing extended access lists. which three keywords could immediately follow the keywords permit or deny as part of an extended access list? (choose all that apply.)
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you want to record and share every step of your analysis, let teammates run your code, and display your visualizations. what do you use to document your work? 1 point a database a spreadsheet a data frame an r markdown notebook
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in which chapter that we learned a programming concept that a function can call its own function (calls itself in the function) and this programming technique actually had helped us to write software to solve a lot of problems?
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the tag in a cache is used to find whether the desired memory address is present in the cache or not
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Which of the following is a difference between strategic-level and operational-level decision making?
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true or false: the following statement might plausibly appear as a functional requirement: the system shall compute a student's gpa by dividing the total grade points for the prior semester by the total credits for that semester, omitting from those totals any courses assigned a grade that does not affect the gpa.
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ferpa includes several exceptions to the written consent requirement, including disciplinary proceedings, financial aid applications or awards, any health or safety emergencies, contractual measures in place for re-disclosure, and directory information. what kinds of information can directory information include?
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is the programming language for client-side programs.which syntax is used for a function to return a value?
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which method do you apply to create a new array based on calculations done to every item from an existing array?
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what windows counter does performance monitor display by default? group of answer choices total pages/sec disk faults/sec current activity total avail memory
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an intrusion prevention system can detect an intrusion and prevent it from successfully attacking the organization by means of a passive response. true false
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a data analyst finishes editing an r markdown notebook and wants to convert it to a new format they can share. what are their options? select all that apply.
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what are byte code instructions? group of answer choices read and interpreted by the jvm syntax errors another name for source code machine code instructions
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