Answer: D

Section: Certifyme India, Scenario
Explanation/Reference:
Explanation:
Configuring a static Frame Relay map, is optional unless you are using subinterfaces. The Frame Relay map
will map a Layer 3 address to a local DLCI. This step is optional because inverse-arp will automatically perform
this map for you.
Syntax for frame-relay map is:
frame-relay map protocol address dlci [broadcast] [cisco | ietf]
The broadcast option allows packets, such as RIP updates to be forwarded across the PVC. If you are not
using the broadcast option, you need to specify the neighbor to forward unicast packet using neighbor
command.
neighbor a.b.c.d
Specify RIP neighbor. When a neighbor doesn’t understand multicast, this command is used to specify
neighbors. In some cases, not all routers will be able to understand multicasting, where packets are sent to a
network or a group of addresses. In a situation where a neighbor cannot process multicast packets, it is
necessary to establish a direct link between routers. The neighbor command allows the network administrator
to specify a router as a RIP neighbor. The no neighbor a.b.c.d command will disable the RIP neighbor.

QUESTION 767
Which connection uses the default encapsulation for serial interfaces on Cisco routers?
A. The serial connection to the Multinational Core
B. The serial connection to the Certifyme1 branch office
C. The serial connection to the Certifyme2 branch office
D. The serial connection to the Certifyme3 branch office

Answer: B

Section: Certifyme India, Scenario
Explanation/Reference:
Explanation:
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 Certifyme1 branch office using the default encapsulation type.
You can change using:
* encapsulation command on interface

Answer: D

Section: Certifyme Communications, Scenario
Explanation/Reference:
Network topology exhibit:
You work as a network administrator for Certifyme.com in Mumbai. Certifyme have local offices throughout
India. Certifyme also have internal sites. These are connected through a multinational core network.
You use terminal CertifymeA to access Certifyme0. You issue the command: sh frame-relay map

QUESTION 764
If required, what password should be configured on the router in the Certifyme2 branch office to allow a
connection to be established with the Certifyme1 router?
A. C0nsole
B. No password is required
C. T1net
D. En8ble
E. Scr8

Answer: B

Section: Certifyme India, Scenario
Explanation/Reference:
Explanation:
No password is required because there is no authentication type is specified, it’s just encapsulation type is
changed. By default encapsulation type on serial interface is hdlc on Cisco router, that is Cisco proprietary
code added hdlc . If you are going with different vendor router connection with cisco router on serial interface,
you need to change hdlc encapsulation type to ppp.

QUESTION 765
What destination Layer 2 address will be used in the frame header containing a packet for host 172.30.4.4?

A. 344
B. 704
C. 702
D. 196
Answer: C

Section: Certifyme India, Scenario

Explanation/Reference:
Explanation:
Circuits are identified by data-link connection identifiers (DLCI). DLCIs are assigned by your provider and are
used between your router and the Frame Relay provider. In other words, DLCIs are locally significant.
See the exhibit of show frame-relay map output, IP address 172.30.4.4 is mapped with 702 DLCI address, so
layer 2 destination address (DLCI on frame-relay) will be 702.
You can map IP to DLCI with:

Answer: E

Section: Certifyme Communications, Scenario
Explanation/Reference:

QUESTION 761
Note: Please refer to the Certifyme Communications scenario.
The Certifyme6 PC has sent the ARP request, and has now received the ARP reply.
Certifyme6 now build a packet that will be sent to CertifymeC web server in order to establish the
communication.
What information will be placed in the header of this packet? Select two.
A. The source address will be the IP address of the Fa0/0 interface of Router Certifyme2.
B. The source address will be the IP address of the Fa0/0 interface of Switch CertifymeB.
C. The source address will be the IP address of PC Certifyme6.
D. The destination address will be the IP address of interface Fa0/0 of Router Certifyme2.
E. The destination address will be the IP address of interface Fa0/0 of Router CertifymeA.
F. The destination address will be the IP address of interface S0/0 of Router Certifyme2.
G. The destination address will be the IP address of interface S0/0 of Router CertifymeA.
H. The destination address will be the IP address of the Certifyme3 web server.

Answer: CH

Section: Certifyme Communications, Scenario
Explanation/Reference:
Explanation:
In this example, since we are dealing with layer 3 (IP) and not the MAC address the source and destination IP
address will remain the same.

QUESTION 762

Note: Please refer to the Certifyme Communications scenario.
The Certifyme6 PC has sent the ARP request, received an ARP Reply, and sent a packet to the CertifymeC web
server. The Ethernet frame has now been received by Router CertifymeA and will now be delivered to the local
LAN. Consider the addressing of the Ethernet frame that now has been created by Router CertifymeA.
Which two statements apply in this context? Select two.
Exhibit:
A. The source address will be the MAC address of PC Certifyme6.
B. The source address will be the MAC address of interface S0/0 of router CertifymeA
C. The source address will be the MAC address of interface S0/0 of router Certifyme2.
D. The source address will be the MAC address of interface Fa0/0 of router CertifymeA
E. The source address will be the MAC address of interface Fa0/0 of router Certifyme2.
F. The destination address will be the MAC address of Switch CertifymeA port attached to
the CertifymeC web server.
G. The destination address will be the IP address of Switch CertifymeA port attached to the CertifymeC web
server.
H. The destination address will be the MAC address of Switch CertifymeA port attached to the CertifymeA
Fa0/0 interface..
I. The destination address will be the MAC address of the CertifymeC web server.
Answer: DI
Section: Certifyme Communications, Scenario
Explanation/Reference:

Answer: A

Section: Switched Network, Scenario
Explanation/Reference:

QUESTION 758
Note: Please refer to the Switched Network Scenario.
Your boss, Mrs. Tess King, is worried about communications between PC CertifymeIII and PC CertifymeIV What
link between Switch Certifyme1 and Certifyme2 is needed for this communication to occur?
A. nothing is required
B. access
C. straight-through
D. multi-access
E. trunk

Answer: E

Section: Switched Network, Scenario
Explanation/Reference:

QUESTION 759
Note: Please refer to the Switched Network Scenario.
Your boss, Mrs. Tess King, is worried that the frames would start looping in the network. You tell her not to
worry, since the …… technology prevents frame looping switched networks,
Exhibit:
A. VTP
B. CSAM/CD
C. STP
D. ARP
E. VTP

Answer: C

Section: Switched Network, Scenario
Explanation/Reference:

Answer: E

Section: Certifyme.com network, Scenario
Explanation/Reference:
Topic 11, Switched Network, Scenario
Network topology exhibit:
You work as a network administrator at Certifyme.com. You are required to make an initial assessment of the
Certifyme.com switched LAN. Study the network topology exhibit carefully.
Topic 11, Switched Network, (5 questions)

Exam K
QUESTION 755
Note: Please refer to the Switched Network Scenario.
Assume that the Certifyme5 switch is the root for all VLANs. What path would be a valid path from PC CertifymeI
to server CertifymeA?
A. Switch Certifyme1, Switch Certifyme2, Switch Certifyme3, Switch Certifyme4
B. Switch Certifyme1, Switch Certifyme5, Switch Certifyme3, Switch Certifyme4
C. Switch Certifyme1, Switch Certifyme5, Switch Certifyme1, Switch Certifyme4
D. Switch Certifyme1, Switch Certifyme4
E. Switch Certifyme1, Switch Certifyme5, Switch Certifyme4

Answer: D

Section: Switched Network, Scenario
Explanation/Reference:

QUESTION 756
Note: Please refer to the Switched Network Scenario.
Your boss, Mrs. Tess King, is worried about communications between PC CertifymeIII and server CertifymeC.
What is needed for this communication to occur?
Exhibit:
A. nothing is required
B. DHCP
C. A router
D. A trunk link between switch Certifyme2 and switch Certifyme5

Answer: C

Section: Switched Network, Scenario
Explanation/Reference:

Answer: C

Section: Certifyme.com network, Scenario
Explanation/Reference:

QUESTION 752
Note: Please refer to the Certifyme.com Network scenario.
Host CertifymeII receives a file from the remote server CertifymeA. Which MAC address appears as the source
address in the header of the frames received by CertifymeII
A. The MAC address of the Fa0/0 interface of router Certifyme1.
B. The MAC address of the NIC in host CertifymeII.
C. The MAC address of the NIC in server CertifymeA.
D. The MAC address of the s0/0 interface of router Certifyme2.
E. None of the above

Answer: A

Section: Certifyme.com network, Scenario
Explanation/Reference:
Explanation:
MAC addresses are used in layer2 and since there are two routers communicating in between the devices, the
source MAC address will be the MAC address of the LAN interface of the router.

QUESTION 753
Note: Please refer to the Certifyme.com Network scenario.
Host CertifymeII has just started up and requests a web page from the web server CertifymeI.
Which two statements describe steps in the process host CertifymeII uses to send the requests CertifymeI.
Select two.
A. Host CertifymeII addresses the frame to the MAC address of router Certifyme1.
B. Host CertifymeII sends the packets to router Certifyme1 to be forwarded to web server
CertifymeI.
C. Host CertifymeII looks in its ARP cache for the MAC address of router Certifyme1.
D. Host CertifymeII sends a broadcast ARP requests to obtain the MAC address of web
server CertifymeI.
E. Host CertifymeII addresses the frames to the MAC address of web server CertifymeI.

Answer: DE

Section: Certifyme.com network, Scenario
Explanation/Reference:

Answer: B

Section: CERTIFYME NETWORK, SCENARIO
Explanation/Reference:

QUESTION 749
Note: Please refer to the Certifyme Network scenario.
The default gateway for both Host CertifymeI and Web Server CertifymeA is the router address 192.168.1.250.
Your are required to assign the correct subnet mask for this network.
Exhibit:
A. 255.255.255.252
B. 255.255.255.0
C. 255.255.255.250
D. 255.255.255.192
E. None of the above

Answer: B

Section: CERTIFYME NETWORK, SCENARIO
Explanation/Reference:
Topic 10, Certifyme.com network, Scenario
Network topology exhibit:
You work as a network engineer at Certifyme.com. Study the network topology exhibit carefully.
Topic 10, Certifyme.com network, (5 questions)
Exam J

QUESTION 750
Note: Please refer to the Certifyme.com Network scenario.
Host CertifymeII sends a request for a file to remote server CertifymeA. Which destination address does host
CertifymeII place in the layer 3 header of the packet containing the request?
Exhibit:
A. the MAC address of the s0/0 interface of router Certifyme2.
B. the MAC address of the NIC in server CertifymeA..
C. the MAC address of the Fa0/0 interface of router Certifyme1.
D. The IP address of server CertifymeA.
E. The IP address of the s0/0/0 interface of Router Certifyme2.
F. The IP address of the Fa0/0/0 interface of Router Certifyme1.

Answer: D

Section: Certifyme.com network, Scenario
Explanation/Reference:

Answer: A

Section: CERTIFYME NETWORK, SCENARIO
Explanation/Reference:

QUESTION 746
Note: Please refer to the Certifyme Network scenario.
Files located on the CertifymeB server must be used by clients on the 192.168.1.0/24 network. You need to
configure a route which accomplishes this on router Certifyme1. Which route configuration statement should
you use?
A. ip route 192.168.1.0 255.255.255.0 209.165.100.250
B. ip route 0.0.0.0 0.0.0.09 s0/0/0
C. ip route 209.165.200.0 255.255.255.0 209.165.100.200
D. ip route 0.0.0.0 0.0.0.0 209.165.200.226
E. None of the above

Answer: C

Section: CERTIFYME NETWORK, SCENARIO
Explanation/Reference:

QUESTION 747
Note: Please refer to the Certifyme Network scenario.
Assuming that a packet is sent from host CertifymeI to Server CertifymeB, in how many frames will this packet
be encapsulated when it is delivered through the network?
A. 3
B. 0
C. 6
D. 2
E. 1
F. 4
G. 5
H. None of the above

Answer: A

Section: CERTIFYME NETWORK, SCENARIO
Explanation/Reference:

Answer: AC

Section: IMPLEMENT AND VERIFY WAN LINKS
Explanation/Reference:
Explanation:
Characteristics of PPP:
* PPP can be used on either type of line (dial or switched lines), because data-link protocols are designed for
point-to-point environment.
* PPP uses one LCP per link and one Control Protocol for each Layer 3 protocol defined on the link. If a router
is configured for IPX, Apple Talk, and IP on a PPP serial link, the router configured for PPP encapsulation
automatically tries to bring up the appropriate control protocols for each layer 3 protocol.
Incorrect Answers:
B. PPP can be used to support any higher layer protocol, including IP, IPX, AppleTalk, etc.
D. PPP is an industry standard used in point to point data networks. The Cisco proprietary method that is
similar to PPP is HDLC.
Reference:
CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720X) Page 309

QUESTION 743
You are preparing to create a point to point WAN by connecting a Cisco router with a Juniper router by way of
their serial links. Which one of the following commands would you use?
A. CM1(config-if)# encapsulation hdlc ansi
B. CM1(config-if)# encapsulation ppp
C. CM1(config-if)# encapsulation LAPD
D. CM1(config-if)# encapsulation frame-relay ietf
E. CM1(config)#encapsulation ppp

Answer: B

Section: IMPLEMENT AND VERIFY WAN LINKS
Explanation/Reference:
Explanation:
PPP is the best encapsulation type to use, when connecting routers of different manufacturers, because PPP
is non proprietary (unlike HDLC). PPP is an industry standard layer 2 encapsulation type that is supported by
every router manufacturer.
Incorrect Answers:
A. HDLC is a cisco proprietary method of encapsulation for connecting a point to point connection. Although
HDLC has become so popular that many other router vendors also support it, HDLC ANSI is not an option that
can be used.
C. LAPD is used as an out of band signaling protocol on connections such as ISDN. It is not a choice that can
be made in this case.
D. This would be the correct choice if the connection was a frame relay connection, instead of a leased line
connection. The ietf keyword is needed for connecting frame links to routers that are non-cisco.
E. This command needs to be placed in interface configuration mode, not in global configuration mode.

QUESTION 744
Router Certifyme1 exhibit:
Router Certifyme2 exhibit:
Referring to the command outputs from the Certifyme routers shown above , which of the following reasons
would you attribute the connectivity problem between the two routers?
A. The authentication needs to be changed to PAP for both routers.
B. The serial IP addresses of routers are not on the same subnet.
C. The username/password combination is incorrectly configured.
D. The router names are incorrectly configured.
E. None of the above

Answer: C

Section: IMPLEMENT AND VERIFY WAN LINKS
Explanation/Reference:
Explanation:
When configuring for CHAP authentication, you must enters the other router’s user name and password. In this
case on router Certifyme2 has entered incorrect router Certifyme1′s password, witch is “cisco1″ (it must be
“cisco”). As a result CHAP authentication will fail, therefore the connection establishment between the routers
will be refused.
Reference:
CCNA Self-Study CCNA ICND Exam Certification Guide Chapter 9 page 315ISBN: 1-58720x Incorrect
Answers:
A. Either PAP or CHAP can be used for these routers.
B. Although this appears to be true at first glance, the subnet mask is 255.255.248.0, and the IP addresses on
each side of the link are indeed on the same subnet.
D. The hostnames are configured correctly, but the passwords do not match.
Topic 9, CERTIFYME NETWORK, SCENARIO
Refer to the diagram of the Certifyme network below for the following 5 questions:
The Certifyme network shown above depicts how a satellite office is connected to the Internet via a single
connection. The following 5 questions will all refer to this diagram.
Topic 9, CERTIFYME NETWORK (5 questions)

Exam I

Answer: CE

Section: IMPLEMENT AND VERIFY WAN LINKS
Explanation/Reference:
Explanation:
Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP)
authenticate the endpoints on either end of a point-to-point serial link.
Chap is the preferred method today because the identifying codes flowing over the link are created using a
MD5 one-way hash, which is more secure that the clear-text passwords sent by PAP.
Reference:
CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720X) Page 314

QUESTION 740
In a lab, two routers are connected directly together using serial interfaces in a back-to-back configuration. No
external DCE devices are being used. What additional command is needed to bring this link up?
A. serial up
B. clockrate
C. clock rate
D. dce rate
E. dte rate
F. None of the above

Answer: C

Section: IMPLEMENT AND VERIFY WAN LINKS
Explanation/Reference:
Explanation:
The clock rate command (two words), is used to provide clocking on a line where no DCE device is located.
Clocking must be provided by one end of this link. Normally in a point to point HDLC or PPP connection the
clock rate is supplied by the network provider.
Incorrect Answers:
A. This is an invalid command B. This command will not work. The clock rate command must use two words.
D, E: These are invalid commands.

QUESTION 741
An ISDN link can be encapsulated using either PPP or HDLC. What are the advantages of using PPP? (Select
two answer choices)
A. PPP is easier to configure and maintain than HDLC.
B. PPP is consistently implemented among different equipment vendors.
C. PPP will run faster and more efficiently than HDLC on circuit-switched ISDN links.
D. PPP authentication will prevent unauthorized callers from establishing an ISDN circuit.
E. PPP can be routed across public facilities, while HDLC is not routable in circuit-switched networks.
F. PPP supports asynchronous communication.

Answer: BD

Section: IMPLEMENT AND VERIFY WAN LINKS
Explanation/Reference:
Explanation:
PPP has numerous advantages over HDLC. Unlike HDLC which is Cisco proprietary, PPP was designed for
multi-protocol interoperability. Secondly, PPP supports authentication, using either PAP or CHAP. Finally, PPP
supports error correction and the use of bonded multilink circuits.
Incorrect Answers:
A. The default encapsulation is HDLC. PPP must be explicitly configured and there are many more options
available with it, so it is more complicated than HDLC.
C. HDLC is slightly more efficient than PPP.
E. Neither PPP nor HDLC work in public circuit switched environments.
F. Although this is true, it would not be considered an advantage on an ISDN link, as ISDN signaling is not
asynchronous.
Reference: CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720X) Page 308-
310