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Q51.  - (Topic 3)

Users on the 172.17.22.0 network cannot reach the server located on the 172.31.5.0 network. The network administrator connected to router Coffee via the console port, issued the show ip route command, and was able to ping the server.

Based on the output of the show ip route command and the topology shown in the graphic, what is the cause of the failure?

A. The network has not fully converged.

B. IP routing is not enabled.

C. A static route is configured incorrectly.

D. The FastEthernet interface on Coffee is disabled.

E. The neighbor relationship table is not correctly updated.

F. The routing table on Coffee has not updated.

Answer: C

Explanation:

The default route or the static route was configured with incorrect next-hop ip address 172.19.22.2. The correct IP address will be 172.18.22.2 to reach server located on 172.31.5.0 network. IP route 0.0.0.0 0.0.0.0 172.18.22.2


Q52.  - (Topic 8)

Which logging command can enable administrators to correlate syslog messages with millisecond precision?

A. no logging console

B. logging buffered 4

C. no logging monitor

D. service timestamps log datetime msec

E. logging host 10.2.0.21

Answer: D


Q53. CORRECT TEXT - (Topic 6)

A network associate is adding security to the configuration of the Corp1 router. The user on host C should be able to use a web browser to access financial information from the Finance Web Server. No other hosts from the LAN nor the Core should be able to use a web browser to access this server. Since there are multiple resources for the corporation at this location including other resources on the Finance Web Server, all other traffic should be allowed.

The task is to create and apply an access-list with no more than three statements that will allow ONLY host C web access to the Finance Web Server. No other hosts will have web access to the Finance Web Server. All other traffic is permitted.

Access to the router CLI can be gained by clicking on the appropriate host. All passwords have been temporarily set to "cisco".

The Core connection uses an IP address of 198.18.196.65.

The computers in the Hosts LAN have been assigned addresses of 192.168.33.1 - 192.168.33.254

✑ host A 192.168.33.1

✑ host B 192.168.33.2

✑ host C 192.168.33.3

✑ host D 192.168.33.4

The servers in the Server LAN have been assigned addresses of 172.22.242.17 - 172.22.242.30.

The Finance Web Server is assigned an IP address of 172.22.242.23.

Answer: 

Select the console on Corp1 router Configuring ACL

Corp1>enable Corp1#configure terminal

comment: To permit only Host C (192.168.33.3){source addr} to access finance server address (172.22.242.23) {destination addr} on port number 80 (web) Corp1(config)#access-list 100 permit tcp host 192.168.33.3 host 172.22.242.23 eq 80 comment: To deny any source to access finance server address (172.22.242.23)

{destination addr} on port number 80 (web)

Corp1(config)#access-list 100 deny tcp any host 172.22.242.23 eq 80

comment: To permit ip protocol from any source to access any destination because of the implicit deny any any statement at the end of ACL.

Corp1(config)#access-list 100 permit ip any any Applying the ACL on the Interface

comment: Check show ip interface brief command to identify the interface type and number by checking the IP address configured.

Corp1(config)#interface fa 0/1

If the ip address configured already is incorrect as well as the subnet mask. This should be corrected in order ACL to work

type this commands at interface mode :

no ip address 192.x.x.x 255.x.x.x (removes incorrect configured ipaddress and subnet mask)

Configure Correct IP Address and subnet mask:

ip address 172.22.242.30 255.255.255.240 ( range of address specified going to server is given as 172.22.242.17 - 172.22.242.30 )

Comment: Place the ACL to check for packets going outside the interface towards the

finance web server.

Corp1(config-if)#ip access-group 100 out Corp1(config-if)#end

Important: To save your running config to startup before exit. Corp1#copy running-config startup-config

Verifying the Configuration:

Step1: show ip interface brief command identifies the interface on which to apply access list.

Step2: Click on each host A, B, C, & D. Host opens a web browser page, Select address box of the web browser and type the ip address of finance web server (172.22.242.23) to test whether it permits /deny access to the finance web Server.

Step 3: Only Host C (192.168.33.3) has access to the server. If the other host can also access then maybe something went wrong in your configuration. Check whether you configured correctly and in order.

Step 4: If only Host C (192.168.33.3) can access the Finance Web Server you can click on NEXT button to successfully submit the ACL SIM.


Q54.  - (Topic 7)

Scenario

Refer to the topology. Your company has connected the routers R1, R2, and R3 with serial links. R2 and R3 are connected to the switches SW1 and SW2, respectively. SW1 and SW2 are also connected to the routers R4 and R5.

The EIGRP routing protocol is configured.

You are required to troubleshoot and resolve the EIGRP issues between the various routers.

Use the appropriate show commands to troubleshoot the issues.

The loopback interfaces on R4 with the IP addresses of 10.4.4.4/32, 10.4.4.5/32, and 10.4.4.6/32 are not appearing in the routing table of R5. Why are the interfaces missing?

A. The interfaces are shutdown, so they are not being advertised.

B. R4 has been incorrectly configured to be in another AS, so it does not peer with R5.

C. Automatic summarization is enabled, so only the 10.0.0.0 network is displayed.

D. The loopback addresses haven't been advertised, and the network command is missing on R4.

Answer: B

Explanation:

For an EIGRP neighbor to form, the following must match:

- Neighbors must be in the same subnet

- K values

- AS numbers

- Authentication method and key strings

Here, we see that R4 is configured for EIGRP AS 2, when it should be AS 1.

Topic 8, Mixed Questions

316.  - (Topic 8)

Two hosts are attached to a switch with the default configuration. Which statement about the configuration is true?

A. IP routing must be enabled to allow the two hosts to communicate.

B. The two hosts are in the same broadcast domain.

C. The switch must be configured with a VLAN to allow the two hosts to communicate.

D. Port security prevents the hosts from connecting to the switch.

Answer: A

Explanation: IP routing must be enables to allow the two hosts to communicate with each other with default configuration.

http://www.cisco.com/c/en/us/support/docs/lan-switching/inter-vlan-routing/41860-howto-L3-intervlanrouting.html


Q55.  - (Topic 5)

Refer to the exhibit.

What is the most appropriate summarization for these routes?

A. 10.0.0.0 /21

B. 10.0.0.0 /22

C. 10.0.0.0 /23

D. 10.0.0.0 /24

Answer: B

Explanation:

The 10.0.0.0/22 subnet mask will include the 10.0.0.0, 10.0.1.0, 10.0.2.0, and 10.0.3.0 networks, and only those four networks.


Q56.  - (Topic 8)

Which two statements about northbound and southbound APIs are true? (Choose two.)

A. Only southbound APIs allow program control of the network.

B. Only northbound APIs allow program control of the network.

C. Only southbound API interfaces use a Service Abstraction Layer.

D. Only northbound API interfaces use a Service Abstraction Layer.

E. Both northbound and southbound API interfaces use a Service Abstraction Layer.

F. Both northbound and southbound APIs allow program control of the network.

Answer: B,C


Q57.  - (Topic 7)

What command visualizes the general NetFlow data on the command line?

A. show ip flow export

B. show ip flow top-talkers

C. show ip cache flow

D. show mls sampling

E. show mls netflow ip

Answer: C

Explanation:

The following is an example of how to visualize the NetFlow data using the CLI. There are three methods to visualize the data depending on the version of Cisco IOS Software. The traditional show command for NetFlow is "show ip cache flow" also available are two forms of top talker commands. One of the top talkers commands uses a static configuration to view top talkers in the network and another command called dynamic top talkers allows real-time sorting and aggregation of NetFlow data. Also shown is a show MLS command to view the hardware cache on the Cisco Catalyst 6500 Series Switch.

The following is the original NetFlow show command used for many years in Cisco IOS Software. Information provided includes packet size distribution; basic statistics about number of flows and export timer setting, a view of the protocol distribution statistics and the NetFlow cache.

The “show ip cache flow” command displays a summary of the NetFlow accounting statistics.

Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-netflow/prod_white_paper0900aecd80406232.html


Q58.  - (Topic 4)

What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?

A. defines the destination IP address that is used in all broadcast packets on DCLI 202

B. defines the source IP address that is used in all broadcast packets on DCLI 202

C. defines the DLCI on which packets from the 192.168.1.2 IP address are received

D. defines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP address

Answer: D

Explanation:

This command identifies the DLCI that should be used for all packets destined to the 192.168.1.2 address. In this case, DLCI 202 should be used.


Q59.  - (Topic 3)

Which type of EIGRP route entry describes a feasible successor?

A. a backup route, stored in the routing table

B. a primary route, stored in the routing table

C. a backup route, stored in the topology table

D. a primary route, stored in the topology table

Answer: C

Explanation:

EIGRP uses the Neighbor Table to list adjacent routers. The Topology Table list all the learned routers to destination whilst the Routing Table contains the best route to a destination, which is known as the Successor. The Feasible Successor is a backup route to a destination which is kept in the Topology Table.


Q60.  - (Topic 3)

What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?

A. 2

B. 8

C. 16

D. unlimited

Answer: B

Explanation:

maximum-paths (OSPF)

To control the maximum number of parallel routes that Open Shortest Path First (OSPF) can support, use the maximum-paths command.

Syntax Description

maximum

Maximum number of parallel routes that OSPF can install in a routing table. The range is from 1 to 16 routes.

Command Default

8 paths