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 the default route is deleted.
C. The default route is only used if there is not a more specific route to a destination host or network.
D. Without a default route, no network communication even in directly attached networks is possible.
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
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 commands will help identify a broken router between the local and the remote machine?
A. ps
B. netstat
C. nslookup
D. ifconfig
E. traceroute
Which of the following details is NOT provided in any output from the netstat utility?
A. broadcast services
B. interface statistics
C. masquerading connections
D. network connections
E. routing tables
Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)
A. ifconfig
B. dig
C. netstat
D. route
E. trackroute
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 no longer supports multicast addresses.
E. For IPv6, UDP and TCP have been replaced by the Rapid Transmission Protocol RTP.
Which command is used to set the hostname of the local system? (Specify ONLY the command without any path or parameters.)
A. hostname
What is the purpose of the nsswitch.conf file?
A. It is used to configure where the C library looks for system information such as host names and user passwords.
B. It is used to configure network protocol port numbers such as for HTTP or SMTP.
C. It is used to configure LDAP authentication services for the local system.
D. It is used to configure which network services will be turned on during the next system boot.
With IPv6, how many bits have been used for the interface identifier of an unicast address? (Specify the number using digits only.)
A. 64
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