CNA150 - Chapter 2 - Static Routing

Identify the three primary uses of static routing

-Ease of routing table maintenance -Routing to and from stub networks -Using a single default route to represent a path to any network that does not have a more specific match with another route in the routing table

Multiple static routes can be summarized into a single static route if:

-The destination networks are contiguous and can be summarized into a single network address. -The multiple static routes all use the same exit interface or next-hop IP address.

A default static route is simply a static route with ____________ as the destination IPv4 address.

0.0.0.0/0

When is a floating static route utilized?

A floating static route is used when the primary route is not available.

Which type of static route matches the following: Commonly used with edge routers to connect to the ISP network.

Default

Which type of static route matches the following: Matches all packets and sends them to a specific default gateway.

Default

____________ are used to send traffic to any destination beyond the next upstream router.

Default routes

Match the features as either dynamic or static routing: -No extra resources needed -Route to destination is always the same -Less secure -Route depends on the current topology -Uses CPU, memory, link bandwidth -More secure

Dynamic -Less secure -Uses CPU, memory, link bandwidth -Route depends on the current topology Static -More secure -No extra resources needed -Route to destination is always the same

Match the features as either dynamic or static routing: -Administrator intervention required -Automatically adapts to topology changes -Suitable for simple and complex topologies -Generally independent of the network size -Increases with network size -Suitable for simple typologies

Dynamic -Generally independent of the network size -Automatically adapts to topology changes -Suitable for simple and complex topologies Static -Complexity increases with network size -Administrator intervention required -Suitable for simple typologies

True or False: A gateway of last resort is a route that matches all packets and is used by the router if a packet does not match any other, more specific route in the routing table.

False, a default route is a route that matches all packets and is used by the router if a packet does not match any other, more specific route in the routing table.

True or False: Static routes require the more processing and overhead than dynamic routing protocols.

False, static routes do not require the same amount of processing and overhead as dynamic routing protocols.

True or False: The floating static route is configured with a lower administrative distance than the primary route.

False, the floating static route is configured with a higher administrative distance than the primary route.

Which type of static route matches the following: Backs up a route discovered by a dynamic routing protocol

Floating

Which type of static route matches the following: Configured with a higher administrative distance than the original dynamic routing protocol.

Floating

Configuring a default static route creates a _______________.

Gateway of Last Resort

Static routes are most often used to connect to a specific network or to provide a ______________ for a stub network.

Gateway of Last Resort

Which type of static route matches the following: Useful when connecting to stub networks.

Standard

Identify the four types of static routes discussed in the chapter

Standard Default Summary Floating

True or False: Floating static routes are static routes that are used to provide a backup path to a primary static or dynamic route, in the event of a link failure.

True

True or False: The path a static route uses to send data is known.

True

A default route can be ____________ learned or ______________ configured.

dynamically statically

Which IOS global configuration command is used to set IPv4 static routes?

ip route

Identify the parameters required to configure static routing

network-address subnet-mask and one or both between ip-address or exit-intf must be used

When the router performs multiple lookups in the routing table before forwarding a packet, it is performing a process known as a __________ lookup.

recursive

A ___________is a network accessed by a single route, and the router has only one neighbor.

stub network