Which of the following is not a command for communication?
Show answer Hide answer
Answer: D. grep
Explanation
The grep command is a text search utility rather than a user communication tool. Filtering file contents for regular expressions is the primary purpose of this command. Communication commands facilitate messaging between users whereas grep analyzes text. Text searching tools scan files and data streams for specific keyword patterns. The grep utility is a foundational component of Unix text processing pipelines. Communication utilities handle interactive messaging across active terminal sessions.
Developers search through large log files for error codes using pattern matching tools. Text filtering is essential for extracting relevant data from command outputs. Distinguishing search tools from communication utilities prevents confusion in system administration. Option A sends direct text messages to other logged-in users on the system. Option B controls whether other users can send messages to your terminal session. Option C sends electronic mail messages between system accounts and users.
- Subject
- Computer Science
- Category
- Software Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Which among these options is wrong ?
Show answer Hide answer
Answer: C. Computer science belongs to Software engineering
Software engineering is widely recognized as a specialized sub-discipline contained within broader computer science. Computer science encompasses theoretical foundations, algorithms, and hardware architecture far beyond...
Q2. What is a set of software elements treated as a single unit for SCM purposes?
Show answer Hide answer
Answer: A. Software Configuration Item
A Software Configuration Item represents a managed unit within configuration management processes. SCIs are uniquely identified and formally controlled throughout the software development lifecycle. Treating related soft...
Q3. Which option is excluded from standard change management processes?
Show answer Hide answer
Answer: D. None of the mentioned
All listed steps are fundamental components of standard change management procedures. Logging changes ensures traceability and accountability throughout the software lifecycle. Estimating impact and reviewing with stakeh...
Q4. What is the cause of software bugs and failures_____________________?
Show answer Hide answer
Answer: C. Both Software companies and Developers
Software defects originate from multiple sources including organizational flaws and developer mistakes. Software companies establish faulty processes while individual developers introduce specific coding errors. Comprehe...
Q5. Which of these is not among the eight principles of the Software Engineering Code of Ethics and Professional Practice?
Show answer Hide answer
Answer: D. ENVIRONMENT
The environment is not listed as one of the fundamental ethical principles. Professional software engineering ethics focus primarily on human stakeholders and products. Environmental concerns are broad but omitted from t...
Q6. Which of the following terms characterizes testing?
Show answer Hide answer
Answer: B. Evaluating deliverable to find errors
Testing involves evaluating software deliverables systematically to uncover hidden defects and errors. Executing programs under controlled conditions helps discover discrepancies between expected and actual results. Qual...