Information Technology (IT) MCQs - Computer Practice | PakExamPoint
Practise Information Technology (IT) MCQs in Computer. Attempt multiple-choice questions, check answers and revise related subtopics.
Information Technology (IT) MCQs and revision practice
Study Information Technology (IT) through multiple-choice questions in Computer. This subtopic contains 2241 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
Use these Information Technology (IT) MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
Explanation A graphic card (or GPU - Graphic Processing Unit ) is a dedicated processor designed to rapidly process and render visual data . It is specialized in handling the complex calculations required for generating images, animations, and videos , allowing them to be displayed on a monitor or screen. This is crucial for gaming, video editing, and graphic design applications.
Explanation A computer will not boot if it doesn't have an operating system (OS) Because the OS is the essential software that manages all hardware and software resources. Without an OS, the computer's basic firmware, like the BIOS, can only start up and run very simple diagnostics. The error message "Operating System not found" indicates the computer cannot locate the software needed to run.
Explanation Time complexity helps developers choose efficient algorithms for faster execution. It helps predict performance for large datasets. Common notations include O(1), O(n), O(n²), etc. It does not measure memory usage—that is space complexity.
جن میں عام طور پر بہت چھوٹے خلیات ہوتے ہیں، خاص طور پر گنجان آباد علاقوں میں؟
A. 3.5G system
B. 3G system
C. 2.5G system
D. None of these
Check answer and explanation
Answer: 2.5G system
Explanation 2.5G systems are typically characterized by very small cells, especially in densely populated areas. This allows for efficient frequency reuse and improved network capacity .
Explanation a global network of interlinked computers using dedicated routers and servers, which allows its end users to access the data scattered all over the world. ND28-4-2023
اگر آپ کسی عمارت میں 100 ایم بی پی ایس کی ڈیٹا ٹرانسمیشن کی رفتار حاصل کرنا چاہتے ہیں تو پھر آپ مندرجہ ذیل میں سے کون سا ٹرانسمیشن میڈیم استعمال کریں گے؟
A. None of these
B. Coastal Cable
C. Unshielded Twisted Pair Cable
D. Copper Cable
Check answer and explanation
Answer: Unshielded Twisted Pair Cable
Explanation Unshielded Twisted Pair (UTP) cable, especially Cat5 or Cat5e , supports data transmission speeds up to 100 Mbps or more. It is widely used in buildings for Ethernet networks due to its cost-effectiveness and reliability.
Explanation Stack operates on the Last In, First Out (LIFO) principle, meaning the most recently added element is removed first . Common applications include function call management, undo operations, and expression evaluation .
Explanation E-mail stands for: Electronic Mail Father of E-mail: Ray Tomlinson First E-mail sent: 1971 @ is used to divide an email into: two parts SMTP helps to send: E-mails SMTP stands for: Simple Mail Transfer Protocol Received email is saved: inbox Sent email is saved in: sent box Maximum attachment size in Yahoo Email: 25 MB G-mail stands: Google Mail Email spam also called: junk email To close email account click: sign out To create new E-mail: Sign Up Email hacking means: Illegal access to open email accounts of others Junk email is also called: Spam At sign ( @ ): always a part of email address Sending an E-mail is similar to: writing a letter A allows us to access our e-mail from anywhere: Webmail interface Bookmark : is associated with Internet E-mail
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