What is most likely the problem?
You have a file /etc/resolv.conf, but the computer does not use the configured DNS servers to look up host names.
What is most likely the problem?
which command will help locate the problem?
If you suspect that a gateway machine on your network has failed but you are unsure which machine, which command will help locate the problem?
Which of the following protocols uses two different network ports?
Which of the following protocols uses two different network ports?
Which of the following lines would you find in the file /etc/host.conf?
Which of the following lines would you find in the file /etc/host.conf?
Which of the following lines would you find in the file /etc/nsswitch.conf?
Which of the following lines would you find in the file /etc/nsswitch.conf?
How many IP addresses were left for other hosts to be connected?
A new department’s local area network has to be connected to the existing LAN using a router. This new department’s LAN uses IP addresses from 192.168.112.64/26 and the first free IP address there was reserved for the router.
How many IP addresses were left for other hosts to be connected?
Which file could this be from?
The following output shows an excerpt from a standard network configuration file:
time 37/udp timeserver
rlp 39/udp
name 42/udp nameserver
whois 43/tcp nickname
Which file could this be from?
Which two of the following Class B IPv4 networks are reserved by IANA for private address assignment and priva
Which two of the following Class B IPv4 networks are reserved by IANA for private address assignment and private routing?
(Choose two)
Which of the following do you have to use to remove it?
You discover a pending job for the at command.
Which of the following do you have to use to remove it?
On a system using shadowed passwords, the correct permissions for /etc/passwd are _____ and the correct permis
On a system using shadowed passwords, the correct permissions for /etc/passwd are _____ and the correct permission for /etc/shadow are _____.