Review for Second Test
The following questions are provided to help you study for the second
test. Do not expect to see these exact questions on the test.
- What does topology mean, in regard to network design?
- What are the three parts to the text's preferred hierarchical design?
- How does adding more switches for more workstations (and only
doing that) affect the number of broadcast domains in a network?
- How does adding more subnets to an existing network affect the number
of broadcast domains in that network?
- How does a hierarchical design support adding more subnets better
than a flat design, from the perspective of number of hops to another
- A mesh provides many redundant connections among devices. In a full
mesh, how many connections would be needed to connect 10 routers? How
about 20 routers?
- Assume we are using a hierarchical network design. We add a new router
to our access layer. To what layer should that router be connected?
- In the question above, what problem would be created by connecting
our new router directly to another at its physical location?
- What is a spoke and hub network design?
- What is the purpose of load balancing in a network design? How is
it probably accomplished in a hierarchical design?
- Redundant paths through a network are desirable, but also troublesome.
What does the spanning tree protocol do to manage possible problems?
- Your text lists three states a port on a switch can be in. What are
they and what do they mean with regard to what that switch is doing?
- What is the broadcast address that most switches would recognize?
- Switches may be used to implement VLANs. When this is done, what
is the difference in the behavior of such a switch when it receives
a broadcast from a device attached to one of its ports?
- What is the theoretical shape of a signal strength map of an omnidirectional
- If an antenna is mounted vertically, how should we think of the orientation
of the strongest signal from that antenna?
- What is Hot Standby mode with regard to Cisco wireless access points?
- Name four kinds of servers that should be set up for redundancy in
- What new virtual concept was introduced in the discussion of Hot
Standby Router Protocol?
- What is circuit diversity, and why should we ask for it from our
- What is encapsulation, with regard to packets passed across different
- What should we expect the first byte in an IPv4 multicast address
to look like?
- How does LFI improve delivery of time sensitive packets?
- How does RTP improve the service provided by another protocol with
which it is commonly paired?
- What is the DSCP field of an IP packet for?
- What is the advantage to starting an enterprise IP scheme with a
class A private address instead of a class C private address?
- If your enterprise requires you to have a real, assigned public address
for your network, how do you know who you need to ask for it?
- When possible, you should use DHCP to assign addresses on your network.
Name three kinds of devices for which this is not an appropriate plan.
- What must be done to make a router act as a DHCP relay agent?
- How do you get access to the Internet if you are using private addressing
on your network?
- What makes an address scheme classful or classless?
- What does the address notation 10.22.34.73/22 tell us about the network
this address is on?
- Name three routing protocols that understand CIDR notation.
- In route summarization, what must be true about all routes included
in the summary? What must also be true about routes not intended to