Labs-hotspot-ccna

Hotspot 1: Question Fram-relay

Topology Question

640-802 CCNA Hotspot Topology Exhibit

Click "console" to show config and then answer the questions :











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 pass is required 

Hotspot 2: Question: VTP  (source : 9tut.com)

 

This task requires you to use the CLI of Sw-AC3 to answer five multiple-choice questions. This does not require any configuration.

To answer the multiple-choice questions, click on the numbered boxes in the right panel.

There are five multiple-choice questions with this task. Be sure to answer all five questions before leaving this item.

Notice: All the images in this VTP LAB are used for demonstration only, you will see slightly different images in the real CCNA exam
Question 1:



What interface did Sw-AC3 associate with source MAC address 0010.5a0c.ffba ?
a) Fa0/1

b) Fa0/3

c) Fa0/6

d) Fa0/8

e) Fa0/9

f) Fa0/12
Answer: Fa 0/8
Explanation: to find out which interface associated with a given MAC address, use the show mac-address-table command. It shows the learned MAC addresses and their associated interfaces. After entering this command, you will see a MAC address table like this:

From this table we can figure out that the MAC address 0010.5a0c.ffba is associated with interface Fa0/8

Question 2:

What ports on Sw-AC3 are operating has trunks (choose two)?
a) Fa0/1

b) Fa0/3

c) Fa0/4

d) Fa0/6

e) Fa0/9

f) Fa0/12
Answer: Fa0/9 and Fa0/12
Explanation: Use the show interface trunk command to determine the trunking status of a link and VLAN status. This command lists port, its mode, encapsulation and whether it is trunking. The image below shows how it works:

(This image is used for demonstration only)

Question 3:



What kind of router is VLAN-R1?
a) 1720

b) 1841

c) 2611

d) 2620
Answer: 2611
Explanation: VLAN-R1 is the router directly connected to Sw-Ac3 switch, so we can use the show cdp neighbors command to see:
1. Neighbor Device ID : The name of the neighbor device;

2. Local Interface : The interface to which this neighbor is heard

3. Capability: Capability of this neighboring device - R for router, S for switch, H for Host etc.

4. Platform: Which type of device the neighbor is

5. Port ID: The interface of the remote neighbor you receive CDP information

6. Holdtime: Decremental hold time in seconds
Sample output of show cdp neighbors command:

One thing I want to notice you is "Local Intrfce" in the image above refers to the local interface on the device you are running the "show cdp neighbors" command
Question 4: Which switch is the root bridge for VLAN 1?
Answer: Sw-DS1
Explanation: First we use the show spanning-tree vlan 1 to view the spanning-tree information of VLAN 1

Notice that if you see all of the interface roles are Desg (designated) then you can confirm Sw-Ac3 switch is the root bridge for this VLAN (VLAN 1).
If you see there is at least one Root port in the interface roles then you can confirm Sw-Ac3 is not the root bridge because root bridge does not have root port. In this case, we notice that the root port on Sw-Ac3 switch is FastEthernet0/12, so we have to figure out which switch is associated with this port -> it is the root bridge. You can verify it with the show cdp neighbors command:

The "Local Intrfce" column refers to the interface on the switch running "show cdp neighbors" command. In this case, Sw-DS1 is associated with interface FastEthernet0/12 -> Sw-DS1 is the root bridge
Question 5: What address should be configured as the default-gateway for the host connected to interface fa 0/4 of SW-Ac3?
Answer: 192.168.44.254
Explanation:
First we have to identify which VLAN interface Fa0/4 belongs to by the show vlan command

From the exhibit we know that VLAN 44 is configured on router using sub-interface Fa0/0.44 with IP address 192.168.44.254/24

Therefore the default gateway of the host should be 192.168.44.254