Explanation:
The dialer group number enables dialer-list on this interface. The dialer-list is to be defined in global
configuration mode as shown in B. Finally, the interfaces should be configured with the proper IP address and
subnet mask.
Incorrect Anss:A. ISDN BRI interfaces should be configured with PPP encapsulation.C. This is not always required, as the default switch type may be sufficient. In addition, if no SPIDs are
required, then there is a good chance that the ISDN switch-type does not need to be explicitly defined.D. This command is using the incorrect syntax.
Reference:
CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720-083-X) Page 310+337


Q56
Place the parameters in the correct sequence to configure dial-on-demand routing (DDR) on an ISDN
BRI interface.Ans:
Place 1st - next hop address
Place 2nd - Dialer-list
Place 3rd - protocol
Place 4th - Dialer-String
Place 5th - group
Reference:
CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720-083-X) Page 342


Q57
You are a network technician at CertKing . You need to configure Frame Relay on a Cisco router.
What is the default LMI (Local Management Interface) frame type transmitted by the Cisco router on a
Frame Relay circuit?A. IETFB. B8ZSC. ANSID. CiscoE. Q933aAns: D

Explanation:
Name Document IOS LMI-Type Parameter
o Cisco Proprietary cisco
o ANSI T1.617 Annex D ansi
o ITU Q.933. Annex A q.933a
Reference:
CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720-083-X) Page 382


Q58
Which of the following are typical Layer 2 encapsulations for a WAN link? (Choose all that apply.)A. EthernetB. PPPC. Token RingD. HDLCE. Frame RelayF. POTSAns: B, D E,

Explanation:
WAN data-link protocols used on point-to-point serial links provide the basic function of data delivery across
that one link. The two most popular WAN data-link protocols are High-Level Data Link Control (HDLC) and
PPP.
Reference:
CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720-083-X) Page


Q59
You are a network technician at CertKing . CertKing has its head office in Mumbai and a branch office in
Delhi. You want to establish connectivity between head office and the branch office. You intend using two
data link layer encapsulation, one for data and one for signaling.
What type of WAN service allows two data layer encapsulations of this nature?A. ISDNB. ATMC. FDDID. ATXE. Frame RelayAns: A

Explanation:
ISDN stands for Integrated Services Digital Network, precisely because it was designed to be integrated with
current digital telephone services. It was originally designed to bring relatively high speed voice and data
services to home users, as well as corporate users.
Note: This question is obviously a bit dated, as a better choice in today's marketplace would be DSL, which
also provides even higher speeds over the existing telephone infrastructure.


Q60
You are a network technician at CertKing . CertKing has its head office in Berlin and a branch office in
Bonn. You are troubleshooting the WAN link between head office and the branch office.
You replace a Cisco router that was providing Frame Relay connectivity at the Bonn site with a frame
relay router from a different vendor. However, connectivity broke down between the two offices.
What is the most likely cause of the problem?A. Mismatched LMI types.B. Incompatible encapsulation types.C. Mismatching IP addresses.D. Incorrect DLCI.Ans: A

Explanation:
Three LMI protocol options are available in Cisco IOS software: Cisco, ITU, and ANSI. Each LMI option is
slightly different and therefore is incompatible with the other two. As long as both the DTE and DCE on each
end of an access link use the same LMI standard, LMI works fine. The default LMI type in a Cisco router is
Cisco. Since this is proprietary, this LMI type is incompatible with the LMI type used by other vendors.
Reference:
CCNA Self-Study CCNA ICND exam certification Guide (Cisco Press, ISBN 1-58720-083-X) Page 381


Q61
You are a network technician at CertKing , Inc. CertKing has recently opened a third office in a foreign
country and bought a router to connect this office to the other two already on the network. The names of
the routers are CertKing 1, CertKing 2, and CertKing 3. Configure the CertKing 3's router's IP addresses
on the E0 and S1 interfaces so that the E0 interface receives the first usable subnet while the S1 interface
receives the second usable subnet from the network 192.168.101.0/28. Both interfaces should receive the
first available IP of the subnet. The zero subnet should not be used. The routers have been configured
with the following specifications.
The routers are named CertKing 1, CertKing 2, and CertKing 3.
RIP is the routing protocol.
Clocking is provided on the serial 0 interfaces
The secret password on the CertKing 3 router is " CertKing "
The subnet mask of all networks other than 192.168.101.0 is the default mask.
The IP addresses are listed in the chart below.