Which three statements about Classless Interdomain Routing (CIDR) are true? (Choose three.)

A system administrator is attempting to add a default router using the command:

route add default 192.20.20.1 0

You get the error message "Network is unreachable." The IP address of the host you are using is 192.20.20.10, and the router 192.20.20.1 is reachable using a "direct" route. The router 192.20.20.1 is on the network in question and is a viable default router.

What causes the error message "Network is unreachable"?

Which three statements about fragmentation are true? (Choose three.)

You have created an IPv6 tunnel between two hosts. Which two statements are true about tunnelling? (Choose two.)

Given:

route add host lion tiger 1

Which two statements are true? (Choose two.)

When must a local host try to route through an intermediary host to reach a remote host?

Which two are benefits of IPv6? (Choose two.)

A workstation does not have access to the 200.20.50.0 network. A system administrator needs to enable access to a host at IP address 200.20.50.100. Other hosts on the same network must remain inaccessible. Which command accomplishes this?

Which two are features of Sun Management Center 2.1? (Choose two.)

Which three are functions of SNMP? (Choose three.)