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 The Unix shell is a: Scripting language : It can execute scripts containing multiple commands. Interpreter language : It interprets commands one at a time, without the need for compilation.
B. To prevent multiple threads from accessing shared resources simultaneously
C. To handle recursion
D. To encrypt data
Check answer and explanation
Answer: To prevent multiple threads from accessing shared resources simultaneously
Explanation A mutex (mutual exclusion) lock ensures that only one thread can access a shared resource at a time. It prevents race conditions , where multiple threads modify data simultaneously. Threads must acquire the mutex before using the resource and release it afterward . Mutexes are commonly used in multithreading and concurrent programming . Proper use of mutexes ensure s data consistency and program stability .
ہدایت یافتہ میڈیا کو ______ کے نام سے بھی جانا جاتا ہے؟
A. None of these
B. Bounded Transmission Media
C. Unbound Transmission Media
D. Wireless Media
Check answer and explanation
Answer: Bounded Transmission Media
Explanation Guided Media uses physical paths like cables (e.g., twisted pair, coaxial, fiber optic). Hence, it is called Bounded Transmission Media or Wired Media because the signal is guided through a solid medium.
متن کو سبسکرپٹ میں تبدیل کرنے کے لئے کون سے ایچ ٹی ایم ایل ٹیگ استعمال کیے جاتے ہیں؟
A. <sup>
B. None of these
C. <sub>
D. <small>
Check answer and explanation
Answer: <sub>
Explanation The tag is used to display text below the normal line , as in subscript (e.g., x5 ). Commonly used in chemical formulas and mathematical expressions.
Explanation The ping command is a fundamental network utility used to test and verify the reachability and connectivity between two hosts on an Internet Protocol (IP) network. It works by sending ICMP (Internet Control Message Protocol) echo request packets to a target device and waiting for an echo reply. A successful response confirms that a connection exists and provides a round-trip time (RTT), which indicates the latency.
Explanation ICMP (Internet Control Message Protocol) is used by network devices to: Report errors (e.g., unreachable host) Test network connectivity (e.g., ping command) It does not carry user data like HTTP or FTP; it is solely fo r control and diagnostic purposes . Last updated 15-feb-2026