You want to redirect the output of the ls command to the ls-output file which already exists. The output should be appended to the file, it should not overwrite the existing content. Which command accomplishes this task?
You want to use the ip command to set a new address for your network device eth0. It is a Standard class C network. The broadcast address and network route should be set accordingly. Which command is correct?
When you connect to an ssh server with your ssh client, the pubic key of the server is compared to the keys stored in a file on the client computer. Which file is this?