What is the lowest numbered unprivileged TCP port?
SIMULATION What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)
SIMULATION What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)
What is true regarding TCP port 23? A. Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used. B. Port 23 is the well known port for…
SIMULATION How many IP-addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/28? (Specify the number only without any additional information.)
Which of the following may occur as a consequence of using the command ifconfig? (Choose THREE correct answers.) A. New name servers may be added to the resolver configuration. B. Network interfaces may become active or inactive. C. The routing…
Which of the following keywords can be used in the file /etc/nsswitch.conf to specify a source for host name lookups? (Choose TWO correct answers.) A. resolv B. dns C. remote D. files E. hosts
Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct answers.) A. 2001:db8::15 www.example.com www B. www.example.com www 203.0.13.15 C. 203.0.113.15 www.example.com www D. www.example.com,www 203.0.13.15,2001:db8::15 E. 2003.0.113.15,2001:db8::15 www.example.com www
What is true regarding a default route? A. The default route is always used first. When the default route is not available more specific routes are tried. B. When a default route is set, all other routes are disabled until…
SIMULATION Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options)
Which of the following is true about IPv6? A. With IPv6, the TCP port numbers of most services have changed. B. IPv6 no longer supports broadcast addresses. C. IPv4 addresses can be used without any change with IPv6. D. IPv6…
SIMULATION Which command is used to set the hostname of the local system? (Specify ONLY the command without any path or parameters.)