Which of the following is true about IPv6?

IPv6 no longer supports broadcast addresses.

With IPv6, the TCP port numbers of most services have changed.

IPv6 no longer supports broadcast addresses.

IPv4 addresses can be used without any change with IPv6.

IPv6 no longer supports multicast addresses.

For IPv6, UDP and TCP have been replaced by the Rapid Transmission Protocol RTP.

What is true regarding a default route?

The default route is only used if there is not a more specific route to a destination host or network.

The default route is always used first. When the default route is not available more specific routes are tried.

When a default route is set, all other routes are disabled until the default route is deleted.

The default route is only used if there is not a more specific route to a destination host or network.

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.)

2001:db8::15 www.example.com www

203.0.113.15 www.example.com www

2001:db8::15 www.example.com www

www.example.com www 203.0.13.15

203.0.113.15 www.example.com www

www.example.com,www 203.0.13.15,2001:db8::15

2003.0.113.15,2001:db8::15 www.example.com www

Which of the following may occur as a consequence of using the command ifconfig? (Choose THREE correct answers.)

Network interfaces may become active or inactive.

New name servers may be added to the resolver configuration.

Network interfaces may become active or inactive.

The system's host name may change.

What is true regarding TCP port 23?

Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.

Port 23 is the well known port for the SSH service which provides secure logins.

Port 23 is the well known port for the rlogin service which is SSL secured by default.

Port 23 is the well known port for the system login services which are encrypted when the user runs the starttls command in his login shell.

Which command, depending on its options, can display the open network connections, the routing tables, as well as network interface statistics. (Specify ONLY the command without any path or parameters.)

netstat,/bin/netstat, ss,/usr/bin/ss

What of the following can be done by the command ifconfig? (Choose TWO correct answers.)

Set a network interface active or inactive.

Change the netmask used on a network interface.

Set a network interface active or inactive.

Specify the kernel module to be used with a network interface.

Allow regular users to change the network configuration of a network interface.

Change the netmask used on a network interface.

Specify which network services are available on a network interface.

Given the following routing table: How would an outgoing packet to the destination 192.168.2.150 be handled?

It would be passed to the router 192.168.1.1 on eth0.

It would be passed to the default router 192.168.178.1 on wlan0.

It would be directly transmitted on the device eth0.

It would be passed to the default router 255.255.255.0 on eth0.

It would be directly transmitted on the device wlan0.

It would be passed to the router 192.168.1.1 on eth0.

On a regular users workstation the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.

The local routing information may be corrupted and must be re-validated using a routing protocol.

One of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-D) to wait for a timeout.

There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.

DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.

Which of the following find commands will print out a list of files owned by root and with the SUID bit set in /usr?

find -type suid -username root -d /usr

What is a purpose of an SSH host key?

It provides the server's identity information to connecting SSH clients.

It must be sent by any SSH client in addition to a user key in order to identify the client's host.

It provides the server's identity information to connecting SSH clients.

It is the root key by which all user SSH keys must be signed.

It authenticates any user that logs into a remote machine from the key's host.

It is used by system services like cron, syslog or a backup job to automatically connect to remote hosts.

LPI 102-500 Practice Test 4 - Free Online Exam Questions 121-160

Which of the following commands will help identify a broken router between the local and the remote machine?

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LPI 102-500 Practice Test 4

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