1) Which of the following tools are used to perform remote administration without using graphical mode: a) telnet b) vnc c) webmin d) ssh e) rdp 2) Check OpenSSH features: a) The main server configuration is defined in the ssh.conf file. b) The main server configuration is defined in the sshd_config file. c) There is usually an SSH client installed by default on any Linux distribution. d) Allows forwarding of X10 protocol traffic 3) Telnet... a) It is a secure remote connection protocol as it uses encryption b) It uses port 22 generally c) It can be used to test if a port on a remote machine is open. d) It is an insecure protocol because it does not use encryption. e) Utiliza el puerto TCP 23 generalmente 4) The command: ssh user@hostname cat /etc/passwd a) it doesn't work because it doesn't have the correct format b) does not open any shell for user on machine hostname c) open a shell for user on the remote machine and then run the command cat... 5) The VNC service uses the communication protocol: a) X11 b) VX c) Free NX d) RFB e) RDP 6) Which of the following list are VNC client implementations: a) TIghteVNC b) RealVNC c) Sidra d) VIno e) VInagre f) UntraVNC 7) Given the following diagram, mark the commands that executed from the client machine allow: the username user connected from the client machine, access through a browser (and without opening a shell on the destination) to the content of the Apache server hosted on the remote machine: a) ssh 192.168.1.2 -L localhost:90:localhost:80 -N -l user b) ssh user@192.168.1.2 -L 90:localhost:80 c) ssh user@192.168.1.2 -R 80:192.168.1.2:90 -N d) ssh user@192.168.1.2 -R 127.0.0.1:80:localhost:90

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