लोकसेवा आयोगको कम्प्युटर अपरेटर परीक्षामा सोधिने स्तरका प्रश्नहरू समावेश गरी यो पहिलो विशेष मोडल सेट (Model Set 1) तयार पारिएको छ। यसमा विन्डोज, वर्ड, एक्सेल र डेटाबेसका महत्वपूर्ण पाटाहरू समेटिएका छन्।
### Computer Operator - Model Set 1
**१. Which of the following is the fastest memory in a computer?**
Answer: Cache Memory
**२. What is the full form of SSD?**
Answer: Solid State Drive
**३. Which key is used to toggle between Insert mode and Overtype mode in MS Word?**
Answer: Insert key
**४. What is the shortcut key to insert a Hyperlink in MS Word?**
Answer: Ctrl + K
**५. In MS Word, Superscript, Subscript, and Strikethrough are known as:**
Answer: Font Effects
**६. Which feature of MS Excel is used to automatically change the background color of cells based on their value?**
Answer: Conditional Formatting
**७. In MS Excel, cells are referenced as A1, A2, B1, etc. What does 'A' represent?**
Answer: Column Name
**८. What is the full form of SQL?**
Answer: Structured Query Language
**९. In MS Access, which object is used to extract specific data from tables based on conditions?**
Answer: Query
**१०. What is the shortcut key to insert a new slide in a PowerPoint presentation?**
Answer: Ctrl + M
**११. Which language is used to structure the text and design web pages?**
Answer: HTML (Hypertext Markup Language)
**१२. What is the maximum speed of a Category 6 (Cat6) Ethernet cable?**
Answer: 10 Gbps
**१३. Which protocol is responsible for assigning temporary IP addresses to devices on a network?**
Answer: DHCP (Dynamic Host Configuration Protocol)
**१४. What is the full form of VIRUS?**
Answer: Vital Information Resources Under Siege
**१५. In Windows, which shortcut key opens the File Explorer?**
Answer: Windows Key + E
**१६. What is the shortcut key to open the Task Manager in Windows 10/11?**
Answer: Ctrl + Shift + Esc
**१७. Which software utility is used to reduce the size of files to save disk space?**
Answer: File Compression (e.g., WinRAR, 7-Zip)
**१८. What is the default page orientation in MS Word?**
Answer: Portrait
**१९. Which formula in MS Excel is used to find the highest value in a range of cells?**
Answer: =MAX()
**२०. In MS Access, what type of relationship is established between a Student table and a Class table?**
Answer: One-to-Many
**२१. What is the port number for HTTP?**
Answer: 80
**२२. Which device operates at the Physical layer of the OSI model?**
Answer: Hub or Repeater
**२३. What is the full form of MODEM?**
Answer: Modulator-Demodulator
**२४. In MS Word, 'Gutter Margin' refers to:**
Answer: Margin added to the binding side of the page when printing
**२५. Which command is used to check the connectivity between two computers over a network?**
Answer: PING
**२६. What is the size of an IPv4 address?**
Answer: 32 bits
**२७. Which component of CPU performs mathematical calculations?**
Answer: ALU (Arithmetic Logic Unit)
**२८. Open-source operating system among the following is:**
Answer: Linux
**२९. What is the short-cut key for spelling and grammar check in MS Word?**
Answer: F7
**३०. In MS Excel, '#' errors usually mean:**
Answer: The column width is too narrow to display the content
**३१. What is the shortcut key to freeze panes in MS Excel?**
Answer: Alt + W + F + F
**३२. Which object in MS Access is used to print information in a well-formatted layout?**
Answer: Report
**३३. What is the maximum zoom percentage in MS PowerPoint?**
Answer: 400%
**३४. Which HTML tag is used to create a bulleted list?**
Answer: <ul>
**३५. What is the full form of DNS?**
Answer: Domain Name System
**३६. Which malware appears as useful software but harms the computer?**
Answer: Trojan Horse
**३७. The process of starting or restarting a computer is called:**
Answer: Booting
**३८. In Windows, which tool is used to remove unnecessary files and free up space?**
Answer: Disk Cleanup
**३९. What is the shortcut key to display the desktop directly in Windows?**
Answer: Windows Key + D
**४०. Nepal's Information Technology Policy was first introduced in:**
Answer: 2000 AD (2057 BS)
**४१. What is the base of the Hexadecimal number system?**
Answer: 16
**४२. Which of the following is a volatile storage device?**
Answer: RAM
**४३. In MS Word, Ctrl + I is used to:**
Answer: Apply Italic formatting to the text
**४४. To combine two or more cells into a single cell in Excel, we use:**
Answer: Merge & Center
**४५. In MS Access, Memo data type is used for:**
Answer: Long text and detailed notes
**४६. Which view in PowerPoint is best used to reorder slides easily?**
Answer: Slide Sorter View
**४७. What is the default port for HTTPS?**
Answer: 443
**४८. Firewall is used in PC for:**
Answer: Security from unauthorized access
**४९. What is the shortcut key to insert the current date in MS Excel?**
Answer: Ctrl + ; (Semicolon)
**५०. 1 Megabyte (MB) is equal to:**
Answer: 1024 Kilobytes (KB)
### निष्कर्ष
यो मोडल सेट १ को निरन्तर अभ्यासले तपाईंको लोकसेवा तयारीको स्तर जाँच्न मद्दत गर्नेछ। नियमित रूपमा आफूलाई अपडेट राख्न हाम्रो ब्लग फलो गर्दै गर्नुहोला।