Operating Systems FC0-U71 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is the purpose of virtual memory in an operating system?

   • ATo speed up the CPU by storing frequently used data in cache
   • BTo allow programs to use more memory than physically available
   • CTo permanently store data on the hard drive
   • DTo encrypt data in memory
   Reveal Solution Discussion Select an answer first
2. 17expert · hard

   A server with 16 GB of RAM is running a database that normally uses 10 GB. Recently, the database started using 14 GB, and the system has become sluggish. The administrator notices heavy disk activity. What is the most effective immediate action to improve performance?

   • ADisable virtual memory entirely
   • BIncrease the size of the page file
   • CMove the page file to a faster SSD
   • DAdd more physical RAM to the server
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   Which of the following is an example of multitasking in an operating system?

   • ARunning a word processor and a web browser at the same time
   • BStoring multiple files in a single directory
   • CUsing a single program that performs multiple functions
   • DConnecting multiple monitors to a computer
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   Which of the following is an example of a common service provided by an operating system to applications?

   • AFile system access
   • BSpell checking in documents
   • CWeb page rendering
   • DDatabase query optimization
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   Which of the following best describes a directory in a file system?

   • AA special file that stores the contents of multiple files
   • BA container used to organize files and other directories
   • CA temporary storage area for deleted files
   • DA hardware device used for storing data
   Reveal Solution Discussion Select an answer first