CIS Chapter 6: Network Layer

The default gateway address is used to forward packets originating from the switch to remote networks.

Within a production network, what is the purpose of configuring a switch with a default gateway address?

The MTU is passed to the network layer by the data link layer.

How does the network layer use the MTU value?

Metric

If there are two or more possible routes to the same destination, the __________ is used to determine which route is used in the routing table.

R1: G0/0 and S0/0/0 R2: G0/1 and S0/0/0 Refer to curriculum topic: 6.4.2The command to use for this activity is show ip interface brief in each router. The active and operational interfaces are represented by the value "up" in the "Status" and "Protocol" columns. The interfaces in R1 with these characteristics are G0/0 and S0/0/0. In R2 they are G0/1 and S0/0/0.

Open the PT activity. Perform the tasks in the activity instructions and then answer the question.Which interfaces in each router are active and operational?

192.133.219.1 Refer to curriculum topic: 6.4.3

Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the 192.133.219.0 network?

PAT

The acronym __________ is used to define the process that allows multiple devices to share a single routable IP address.

1.) Providing end devices with a unique network identifier. 2.) Directing data packets to destination hosts on other networks.

What are two functions that are provided by the network layer? (Choose two.)

Flow Label

When transporting data from real-time applications, such as streaming audio and video, which field in the IPv6 header can be used to inform the routers and switches to maintain the same path for the packets in the same conversation?

127.0.0.1 Refer to curriculum topic: 6.2.1A host can ping the loopback interface by sending a packet to a special IPv4 address within the network 127.0.0.0/8.

Which IPv4 address can a host use to ping the loopback interface?

network portion

Which portion of the network layer address does a router use to forward packets?

flash

During the boot process, where will the router bootstrap program look for the IOS image by default?

Time-to-Live

Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?

3

Refer to the exhibit. A packet leaving PC-1 has to traverse __________ hops to reach PD-4.

Ctrl-C

Which key combination allows a user to abort setup mode?

Maximum Transmission Unit (MTU)

A router may have to fragment a packet when forwarding it from one medium to another medium that has a smaller __________.