JUNOS Enterprise Switching

Chapter Review Questions

1. Which is true regarding routing?

   1. End stations are not aware of routers

   2. End stations participate in routing and intentionally evoke routing services when needed

   3. Routing is based on a flat addressing space

   4. Bridging is based on a hierarchical address space

2. Stations in different VLANs can communicate:

   1. Directly when Layer 2 ACLs permit

   2. Indirectly, through transparent bridging

   3. Directly via a router

   4. Indirectly via a router

3. True or false: when a station in one VLAN attempts to reach a destination in another VLAN, the ARP is sent to the target station directly.

4. You can provide inter-VLAN routing on the EX with:

   1. A switched VLAN interface

   2. A routed VLAN interface

   3. A tunnel interface that is placed into both VLANs

   4. Two interfaces with an external cable

5. Four VLANs are defined, and each is served by a vlan interface unit. Which is true?

   1. By default, no inter-VLAN communications are possible

   2. By default, all stations will have inter-VLAN connectivity at Layer 3

   3. Policy is needed to permit communications

   4. Firewall filters must be defined with an accept action for inter-VLAN communications to succeed

6. What is the difference between a discard and a reject next hop on a static route?

   1. Discard silently tosses traffic, while reject generates an error message

   2. Discard generates an error message, while reject tosses traffic silently

   3. Discard black-holes traffic, while reject prevents the route from being readvertised in another protocol

   4. Neither is valid; a static route must point to a forwarding next hop

7. Where can ...