Section 9: Networking (1-6)

What Linux file should be set with "1" to allow packets forwarding in Linux network interface cards?

Type the full path:

To allow packets forwarding in Linux network interface cards we should edit the file at ______________ by adding "net.ipv4.ip_forward = 1" in order to apply this change in persistent way across system restarts:

CoreDNS binaries can be downloaded from:

• Docker images

• GitHub releases

• Linux tarballs

• Linux repositories

What's the file used to configure internal name resolution in Linux?

Type the absolute path.

What file should be configured to be used by CoreDNS and that contains the hostname mapping?

• /etc/coredns.cfg

• /etc/coredns/hosts

• /etc/hosts

• /etc/coredns/Corefile

What's the main CoreDNS config file?

• /etc/coredns.cfg

• /etc/coredns/hosts

• /etc/hosts

• /etc/coredns/Corefile

__________________ are used by containers like Docker, to implement network isolation.

• Network containers

• Network groups

• Network namespaces

• Pod networking

Do the container can have its own virtual interfaces, routing and ARP tables within namespaces?

• True

• False

Type the full command you'd run to create a new network namespace called "red":

Type the full command to list all network namespaces: