Chapter 2 - Advanced Router Configuration I
Section 2-1, Introduction
1. ************************
Question: Routing protocols provide a standardized format for route management including
which of the following?
a. Route selection
b. Sharing route status with neighbor routers
c. Calculating alternative routes if the best path route is down
d. All the above
e. None of the above
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-1,
Introduction
Correct Answer: d. All the above
Explanation: Routing protocols provide a format for all these functions.
Section 2-2, Configuring Static Routing
2. ************************
Question: Which of the following is true about static routes?
a. Usually the default gateway in PCs
b. Specify where data is not allowed to go
c. Automatically configured
d. Can’t be seen in the routing table
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-2,
Configuring Static Routing
Correct Answer: a. Usually the default gateway in PCs
Explanation: Static routes are manually configured in routers and PCs. The most common static
route used in a host computer is the default gateway. Routers sometimes use a static route when
specifying where the network data traffic is to be forwarded. Static routes can be seen in the
routing table.
3. ************************
Question: 127.0.0.1 is a ___.
a. Static route
b. Route print
c. Loopback
d. null0 interface
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-2,
Configuring Static Routing
Correct Answer: c. Loopback
Explanation: 127.0.0.1 is a loopback to the host computer. A loopback means the data is routed
directly back to the source. A static route is a data traffic route that has been manually entered
into either a router’s or a computer’s routing table. Route print is the command used to obtain the
routing table for a host Windows-based PC computer. Linux/Unix hosts use the netstat
command with different flags. A null0 interface is a virtual bit-bucket interface where every
packet discarded.
4. ************************
Question: Which of the following commands show you the routing table?
a. netstat -t
b. route print
c. show route
d. netstat -r
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-2,
Configuring Static Routing
Correct Answer: b. route print and d. netstat -r
Explanation: Route print and netstat –r show you the PC routing table. The command show ip
route is used with routers.
5. ************************
Question: Which of the following is the correct syntax to create a static route?
a. ip route <next-hop-ip-address><subnet-mask> <network-address>
b. route <network-address> <subnet-mask> <next-hop-ip-address>
c. ip route <exit interface><network-address> <subnet-mask> <next-hop-ip-address>
d. ip route <network-address> <subnet-mask> <next-hop-ip-address>
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-2,
Configuring Static Routing
Correct Answer: d. ip route <network-address> <subnet-mask> <next-hop-ip-address>
Explanation: ip route <network-address> <subnet-mask> <next-hop-ip-address> is the correct
syntax to create a static route.
Section 2-3, Dynamic Routing Protocols
6. ************************
Question: Which of the following elements are used to determine the best path to a network?
a. Balancing
b. Administrative distance
c. Metric
d. All the above
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-3, Dynamic
Routing Protocols
Correct Answer: b. Administrative distance and c. Metric
Explanation: Administrative distance and metric are used to determine the best route. Balancing
is used to choose how much data to send on a particular route.
7. ************************
Question: Which of the following are features of dynamic routing protocols?
a. What information is exchanged between routers
b. When updated routing information is exchanged
c. Steps for reacting to changes in the network
d. Criteria for establishing the best route selection
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-3, Dynamic
Routing Protocols
Correct Answer: a. What information is exchanged between routers; b. When updated routing
information is exchanged; c. Steps for reacting to changes in the network; d. Criteria for
establishing the best route selection
Explanation: All these are features of routing protocols.
8. ************************
Question: Convergence is ___.
a. When a router obtains a clear view of the routes in a network.
b. A numeric measure assigned to routes for ranking the routes best to worst; the smaller the
number, the better.
c. A procedure in the protocol that enables routers to use any of the multiple data paths available
from multiple routers to reach the destination.
d. A procedure in the protocol that determines the best route.
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-3, Dynamic
Routing Protocols
Correct Answer: a. This happens when a router obtains a clear view of the routes in a network.
Explanation:
Item
1
Issue
Purpose
A procedure in the protocol that determines the best
Path Determination route.
2
Metric
A numeric measure assigned to routes for ranking the
routes best to worst; the smaller the number, the
better.
3
Convergence
This happens when a router obtains a clear view of the
routes in a network. The time it takes for the router to
obtain a clear view is called the convergence time.
4
Load Balancing
A procedure in the protocol that enables routers to use
any of the multiple data paths available from multiple
routers to reach the destination.
Convergence usually happens when a router is first inserted into the network and establishes its
routing table or after a network change/failure requiring it to recalculate route(s) or possibly the
entire routing table.
9. ************************
Question: A metric is ___.
a. When a router obtains a clear view of the routes in a network.
b. A numeric measure assigned to routes for ranking the routes best to worst; the smaller the
number, the better.
c. A procedure in the protocol that enables routers to use any of the multiple data paths available
from multiple routers to reach the destination.
d. A procedure in the protocol that determines the best route.
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-3, Dynamic
Routing Protocols
Correct Answer: b. A numeric measure assigned to routes for ranking the routes best to worst;
the smaller the number, the better.
Explanation:
Item
1
2
3
4
Issue
Purpose
A procedure in the protocol that determines the best
Path Determination route.
Metric
A numeric measure assigned to routes for ranking the
routes best to worst; the smaller the number, the
better.
Convergence
This happens when a router obtains a clear view of the
routes in a network. The time it takes for the router to
obtain a clear view is called the convergence time.
Load Balancing
A procedure in the protocol that enables routers to use
any of the multiple data paths available from multiple
routers to reach the destination.
Metric applies only when comparing routes of the same routing protocol (that is, administrative
distance), so if the same route is learned via two different routing protocols, the route with the
better administrative distance would be installed into the routing table.
10. ************************
Question: Hop count is ___.
a. The number of routers the data packet must pass through to reach the destination network
b. A measure of the reliability of the link, typically in terms of the amount of errors
c. The time it takes for a data packet to travel from source to destination
d. The measured delay time in terms of clock ticks, where each tick is approximately 55
milliseconds (1⁄18 second)
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-3, Dynamic
Routing Protocols
Correct Answer: a. The number of routers the data packet must pass through to reach the
destination network
Explanation: Examples of route metrics are as follows:

Hop count: The number of routers the data packet must pass through to reach the
destination network.
 Reliability: A measure of the reliability of the link, typically in terms of the amount of
errors.
 Bandwidth: Having to do with the data capacity of the networking link; a Fast-Ethernet
100 Mbps link has greater data capacity than a 10 Mbps Ethernet link.
 Delay: The time it takes for a data packet to travel from source to destination.
 Cost: A value typically assigned by the network administrator that takes into account
bandwidth and expense.
 Load: Having to do with the network activity on a link or router.
 Ticks: The measured delay time in terms of clock ticks, where each tick is approximately
55 milliseconds (1⁄18 second).
*************************
Link-state vs distance vector
Section 2-4, Configuring Distance Vector Protocols – RIP/RIPv2
11. ************************
Question: Which of the following is not a disadvantage of RIP?
a. Large routing tables
b. Consumes bandwidth
c. Slow convergence
d. Dynamic routing protocol
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-4,
Configuring Distance Vector Protocols – RIP/RIPv2
Correct Answer: d. Dynamic routing protocol
Explanation: RIP is a dynamic routing protocol that enables the routers to update their own
routing tables periodically, which is an advantage The sometimes large routing tables can
consume bandwidth that can cause a slowdown in network traffic. The convergence is slow
because there is 30 seconds between updates.
12. ************************
Question: You use a classless network address with the network command when configuring
RIP. True or False?
a. True
b. False
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-4,
Configuring Distance Vector Protocols – RIP/RIPv2
Correct Answer: b. False
Explanation: RIP uses classful addressing, so you must use a classful network address with the
network command.
13. ************************
Question: Which of the following are advantages of RIP?
a. Simple to configure
b. Good for large networks
c. Suited for fast convergence
d. Suited for contiguous networks
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-4,
Configuring Distance Vector Protocols – RIP/RIPv2
Correct Answer: a. Simple to configure and d. Suited for contiguous networks
Explanation: RIP is simple to configure and can be used only on networks that have the same
class network address. It is slow to converge and can be used only on small networks.
14. ************************
Question: Which code in the routing table means the route was discovered using RIP?
a. C
b. R
c. S
d. M
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-4,
Configuring Distance Vector Protocols – RIP/RIPv2
Correct Answer: b. R
Explanation: The routing table codes are as follows: C – connected, S – static, R – RIP, and M –
mobile
15. ************************
Question: Which of the following commands is used to configure RIPv2 and not RIP?
a. router rip
b. router ripv2
c. version 2
d. no version 1
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-4,
Configuring Distance Vector Protocols – RIP/RIPv2
Correct Answer: c. version 2
Explanation: The command router rip is used to configure both versions of RIP but version 2 is
used to change the configuration. Version 2 command is entered after router rip (config-router)
prompt and must be enabled on all RIP routers in the domain.
16. ************************
Question: The no auto-summary command is used with RIPv2 to force the router to advertise
actual networks. True or False?
a. True
b. False
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-4,
Configuring Distance Vector Protocols – RIP/RIPv2
Correct Answer: a. True
Explanation: The command no auto-summary is used to instruct the router not to summarize
the network routes. The no auto-summary command alters this behavior by enabling RIPv2 to
advertise the actual networks, not the classful summary.
Section 2-5, TFTP—Trivial File Transfer Protocol
17. ************************
Question: Which of the following are not reasons to use TFTP?
a. Upgrading or archiving the configuration files.
b. Save and reload the configuration files to and from a remote server.
c. Updating and saving the Internetwork Operating System (IOS) files.
d. All the above are reasons.
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-5, TFTP—
Trivial File Transfer Protocol
Correct Answer: d. All the above are reasons.
Explanation: Trivial File Transfer Protocol (TFTP) is a simple file transfer protocol often used
with routers and switches to save and reload the configuration files to and from a remote server.
The files are saved in case of equipment failure, for rebooting, or for upgrading or archiving the
configuration files. The TFTP server is also used for updating and saving the Internetwork
Operating System (IOS) files stored in flash.
18. ************************
Question: What information must you have available when trying to save a configuration from
the router to a TFTP server?
a. Privileged EXEC mode password
b. Name of the configuration file
c. Address of the TFTP server
d. Both a and c
***Remediation Link: Chapter 2 – “Advanced Router Configuration I”; Section 2-5, TFTP—
Trivial File Transfer Protocol
Correct Answer: c. address of the TFTP server
Explanation: You need the server address to save your file to the TFTP server. Some TFTP
servers enable you to create new files, and there is an assumption that you have the
access/permissions, which could lead to just needing the address of TFTP server as the answer.