Routing and Switching Essentials Version 6 – RSE Final Exam

Routing and Switching Essentials (Version 6.00) – RSE Final Exam

QUESTION 1

Drag and Drop Question

A.
B.
C.
D.
Correct Answer:
Section: (none)
Explanation
Explanation/Reference:

QUESTION 2

A network administrator receives an error message while trying to configure the Ethernet interface of a
router with IP address 10.24.24.24/29. Which statement explains the reason for this issue?
A.This address is a broadcast address.
B.VLSM-capable routing protocols must be enabled first on the router.
C.The Ethernet interface is faulty.
D.This address is a network address.

Correct Answer: D
Section: (none)
Explanation
Explanation/Reference:

QUESTION 3

Which address is the IPv6 all-RIP-routers multicast group address that is used by RIPng as the destination
address for RIP updates?

A.FF02::9
B.FF02::6
C.FF05::101
D.FF02::A

Correct Answer: A
Section: (none)
Explanation
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QUESTION 4

If all OSPF routers in a single area are configured with the same priority value, what value does a router use
for the OSPF router ID in the absence of a loopback interface?

A.the IP address of the first Fast Ethernet interface
B.the IP address of the console management interface
C.the highest IP address among its active interfaces
D.the lowest IP address among its active interfaces
E.the priority value until a loopback interface is configured

Correct Answer: C
Section: (none)
Explanation
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QUESTION 5

The OSPF Hello protocol performs which of the following tasks? (Choose two.)

A.It provides dynamic neighbor discovery.
B.It detects unreachable neighbors in 90 second intervals.
C.It maintains neighbor relationships.
D.It negotiates correctness parameters between neighboring interfaces.
E.It uses timers to elect the router with the fastest links as the designated router.
F. It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.

Correct Answer: AC
Section: (none)
Explanation
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QUESTION 6

The network administrator of the Oregon router adds the following command to the router configuration: ip
route 192.168.12.0 255.255.255.0 172.16.12.1. What are the results of adding this command? (Choose two.)

A.The command establishes a static route.
B.The command invokes a dynamic routing protocol for 192.168.12.0.
C.Traffic for network 192.168.12.0 is forwarded to 172.16.12.1.
D.Traffic for all networks is forwarded to 172.16.12.1.
E.This route is automatically propagated throughout the entire network.
F. Traffic for network 172.16.12.0 is forwarded to the 192.168.12.0 network.

Correct Answer: AC
Section: (none)
Explanation
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QUESTION 7

A network administrator is planning a network installation for a large organization. The design requires 100
separate subnetworks, so the company has acquired a Class B network address. What subnet mask will
provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?

A.255.255.240.0
B.255.255.248.0
C.255.255.252.0
D.255.255.254.0
E.255.255.255.0
F. 255.255.255.192

Correct Answer: D
Section: (none)
Explanation
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QUESTION 8

Refer to Exhibit. Based on the network shown in the graphic which option contains both the potential
networking problem and the protocol or setting that should be used to prevent the problem?

A.routing loops, hold down timers
B.switching loops, split horizon
C.routing loops, split horizon
D.switching loops, VTP
E.routing loops, STP
F. switching loops, STP

Correct Answer: F
Section: (none)
Explanation
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QUESTION 9

Which of the following services use UDP? (Choose three.)

A.Telnet
B.TFTP
C.SNMP
D.DNS
E.SMTP
F. HTTP

Correct Answer: BCD
Section: (none)
Explanation
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QUESTION 10

Refer to the exhibit. Which two statements are true based the output of the show frame-relay lmi command
issued on the Branch router? (Choose two.)

A.LMI messages are being sent on DLCI 1023.
B.The LMI exchange between the router and Frame Relay switch is functioning properly.
C.LMI messages are being sent on DLCI 0.
D.The Frame Relay switch is not responding to LMI requests from the router.
E.The router is providing a clock signal on Serial0/0 on the circuit to the Frame Relay switch.
F. Interface Serial0/0 is not configured to encapsulate Frame Relay.

Correct Answer: CD
Section: (none)
Explanation
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QUESTION 11

Hotspot Question

A.
B.
C.
D.

Correct Answer:
Section: (none)
Explanation
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Explanation:
The output of the above show command displays that the local DLCI number corresponding to the subinterface of s1/0 whose IP address is 172.30.0.4 is 702.

Answer: frame-relay map ip 172.30.0.3 196 broadcast
Explanation:
“show frame-relay map”, we know that DLCI mapped
Based on the output of the command
to the router S-AMER is 196. (.3 In the above network topology, the complete Layer 3 IP address is 172.30.0.3)

Answer: The serial connection to the MidEast branch office.
Explanation:
On the basis of the configuration on Dubai provided in the exhibit, we know that the encapsulation types of
different interfaces are as follows:
Serial 1/0 : encapsulation frame-relay
Serial 1/2 and Serial 1/3 : both interfaces are encapsulated PPP Serial 1/1: There is no related
encapsulation information displayed, so its default encapsulation type is HDLC .

Based on the network topology provided in the exhibit, the interface Serial 1/1 is connected to the router
MidEast of the branch office, so the encapsulation type of the router MidEast is by default. The default
encapsulation on a serial interface is HDLC. The original HDLC encapsulation was defined by the
International Organization for Standards (ISO), those same folks who developed the OSI model. The ISO
version of HDLC had one shortcoming, however; it had no options to support multiple Layer 3 routed
protocols. As a result, most vendors have created their own form of HDLC. Cisco is no exception because it
has its own proprietary form of HDLC to support various Layer 3 protocols such as IPX, IP, and AppleTalk.
The Serial connection to the Dub<i branch office using the default encapsulation type. You can change using:
* encapsulation <type> command on interface

Answer: Enable
Explanation:
In the diagram, DeepSouth is connected to Dubai’s S1/2 interface and is configured as follows:
Interface Serial1/2
IP address 192.168.0.5 255.255.255.252
Encapsulalation PPP ; Encapsulation for this interface is PPP
Check out the following Cisco Link:
http://www.cisco.com/en/US/tech/tk713/tk507/technologies_configuration_example09186a00800 9
4333.shtml#configuringausernamedifferentfromtheroutersname
Here is a snipit of an example:
If Router 1 initiates a call to Router 2, Router 2 would challenge Router 1, but Router 1 would not challenge
Router 2. This occurs because the ppp authentication chap callin command is configured on Router 1. This
is an example of a unidirectional authentication. In this setup, the ppp chap hostname alias-r1 command is
configured on Router 1. Router 1 uses “alias-r1” as its hostname for CHAP authentication instead of “r1.”
The Router 2 dialer map name should match Router 1’s ppp chap hostname; otherwise, two B channels are
established, one for each direction.

QUESTION 12

What are two recommended ways of protecting network device configuration files from outside network
security threats? (Choose two.)

A.Allow unrestricted access to the console or VTY ports.
B.Use a firewall to restrict access from the outside to the network devices.
C.Always use Telnet to access the device command line because its data is automatically encrypted.
D.Use SSH or another encrypted and authenticated transport to access device configurations.
E.Prevent the loss of passwords by disabling password encryption.

Correct Answer: BD
Section: (none)
Explanation
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QUESTION 13

Hotspot Question

A.
B.
C.
D.
Correct Answer:
Section: (none)
Explanation
Explanation/Reference:
Answer: R1 will drop this packet because this is not a valid IP address.

Answer: ip route 0.0.0.0 0.0.0.0 s0/0/0
Explanation:
In order to allow the network of 192.168.1.0/24 to access Server 1, we need to establish a default route.
The format of this default route is as follows:
ip route prefix mask {ip-address interface-type interface-number [ip- address]} [distance] [name]
[permanent track number] [tag tag]
Based on the request of this subject, we need to configure the correct route as follows:
ip route 0.0.0.0 0.0.0.0 s0/0/0

Answer: 3
Explanation:
We believe the correct answer is 3 because the packet will be encapsulated in one more frame sent
between routers R1 and R2. Source MAC is interface S0/0/0 on router R1 and destination is the
serialinterface on router R2.

Answer: On router R1, configure NAT to translate an address on the 209.165.100.0/24 network to
192.168.1.10
Explanation:
In order to allow internet users to access Web Server 2, we need to configure NAT address translation on
router R1.

Answer: 255.255.255.0
Explanation:
1. Based on the information provided in the exhibit, we know that the IP address of the interface Fa0/0 is
192.168.1.250/24, that is to say the subnet mask is 255.255.255.0??
2. When configuring the correct IP address and not wasting IP address, the network of 192.168.1.0 needs
to contain the following three IP addresses of interfaces:
R1(fa 0/0) : 192.168.1.250
Host 1: 192.168.1.106/24
Web server 2: 192.168.1.10/24
The correct mask is 255.255.255.0.

QUESTION 14

Refer to the exhibit. The switches on a campus network have been interconnected as shown. All of the
switches are running Spanning Tree Protocol with its default settings. Unusual traffic patterns are observed
and it is discovered that Switch9 is the root bridge. Which change will ensure that Switch1 will be selected
as the root bridge instead of Switch9?

A.Raise the bridge priority on Switch1.
B.Lower the bridge priority on Switch9.
C.Raise the bridge priority on Switch9.
D.Physically replace Switch9 with Switch1 in the topology.
E.Disable spanning tree on Switch9.
F. Lower the bridge priority on Switch1.

Correct Answer: F
Section: (none)
Explanation
Explanation/Reference:

QUESTION 15

The Company WAN is migrating from RIPv1 to RIPv2.
Which three statements are correct about RIP version 2? (Choose three)
A.It has the same maximum hop count as version 1.
B.It uses broadcasts for its routing updates.
C.It is a classless routing protocol.
D.It has a lower default administrative distance than RIP version 1.
E.It supports authentication.
F. It does not send the subnet mask in updates.

Correct Answer: ACE
Section: (none)
Explanation
Explanation/Reference:

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