Layer one of the OSI model is_______________________?
Layer one of the OSI model is_______________________? A. network layer B. transport layer C. physical layerD. physical layer
Layer one of the OSI model is_______________________? A. network layer B. transport layer C. physical layerD. physical layer
What command is used with vi editor to move back to the beginning of a word ? A. w B. e C. aD. b
What command is used to count the total number of lines, words, and characters contained in a file ? A. countw B. wcountC. wc D. count p
The cat command is used to_______________? A. capture a fileB. display a file C. print a file D. copy a file
Which of the following keys is used to delete the character beneath the cursor ? A. x B. X C. dd D. D
The UNIX file system stores a data in physical blocks of_______________? A. 1024 bytes B. 2048 bytesC. 512 bytes D. 256 bytes
Which of the following commands is used to remove files ? A. erase B. deleteC. rm D. dm
Which command is used to assign only read permission to all three categories of the file ‘note’ ? A. chmod go+r note B. chmod a-rwC. chmod ugo=r note D. chmod u+r,g+r,o-x note
The command that can be used to restrict incoming messages to a user is_______________? A. mesg B. grep C. halt D. sleep
Which of the following commands is used to rename a file ? A. rename B. removeC. mv D. ren