IT204 Chap 8 Network Layer

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

• The cable is not connected properly to the NIC.

• The computer has an invalid IP address.

• The computer has an incorrect subnet mask.

• The computer has an invalid default gateway address.

Which statement about host forwarding decisions is true?

• A host cannot ping itself.

• A remote destination host is on the same local network as the sending host.

• Local hosts can reach each other without the need of a router.

• Routing is enabled on switches to discover the best path to a destination.

What is a basic characteristic of the IP protocol?

• connectionless

• media dependent

• user data segmentation

• reliable end-to-end delivery

Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?

• Sequence Number

• Acknowledgment Number

• Time-to-Live

• Differentiated Services

What route sources in show ip route command means directly connected network?

• L

• C

• S

• D