testinside ccna Hotspot 2: Topology Question

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 looguide 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:

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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: T1net

CCNA (640-802) exam topic Explain and select the appropriate administrative tasks required for a WLAN

Question1:
A single 802.11g access point has been configured and installed in the center of a square office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem? (Choose three.)

A:mismatched TKIP encryption
B:null SSID
C:cordless phones
D:mismatched SSID
E:metal file cabinets
F:antenna type or direction

Answers: C, E, F

Explanation:
Cordless phones also work on RF so they conflict with WLAN RF and reduce the performance.
metal file cabinets also act as obstacles for Radio waves in WLAN results in performane loss.
Antenna adds power gain for radio waves if Antenna selected is not correct type or direction is not exact then performance will effect.

Question 2:
Refer to the exhibit. What two facts can be determined from the WLAN diagram? (Choose two.)

A:The area of overlap of the two cells represents a basic service set (BSS).
B:The network diagram represents an extended service set (ESS).
C:Access points in each cell must be configured to use channel 1.
D:The area of overlap must be less than 10% of the area to ensure connectivity.
E:The two APs should be configured to operate on different channels.

Answers: B, E

Explanation:
The Extended Service Set (ESS) uses multiple APs with overlapping microcells to
cover all clients. Microcells should overlap by 10

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