Hotspot 2: Topology Question

640-802 CCNA Hotspot Topology Exhibit





Question 1:
Note: host 172.30.4.4 is wrongly given in Question the correct host must be 172.30.0.4



Answers: 702

Explanation:The destination layer 2 address is a DLCI for frame-relay network. The destination host packet address is 172.30.0.4 corresponding DLCI is 702.
This can be confirmed by looking at the show frame-relay map output which shows the frame-relay map statements for layer 3 address to its corresponding layer 2 address IP 172.30.0.4 is mapped to DLCI 702 .

Question 2:


Answers: frame-relay map ip 172.30.0.3 196 broadcast
Explanation:
The show frame-relay map command above output provides the dynamic mapping for S-AMER (.3 as per topology the complete address is 172.30.0.3) to DLCI 196.
To create a static frame-relay map on dubai router to S-AMER we use the following command
Syntax: frame-relay map protocol protocol-address dlci [broadcast]
frame-relay map ip 172.30.0.3 196 broadcast
Question 3:

Answers: The serial connection to the MidEast branch office
Explanation:
By seeing the partial running config provided for Dubai router ... We can identify what encapuslation type is configured on each interface
Interface serial 1/0 : encapsulation frame-relay
Interface serial 1/2 and serial 1/3 : Both have encapsulation ppp
Interaface serial 1/1: Has no config info on encapsulation type this determines the default encapsulation (HDLC) is not changed on this interface.
Serial 1/1 is connection to MidEast branch office from Dubai router which has the default encapsulation.
Question 4:

Answers: No password is required.
Explanation: The serial connection between the mideast and Dubai router is having the default WAN encapsulation of HDLC. Since, HDLC requires no password to be set for connection establishment, "no password is required" is the correct answer.