Testking_640-802_V13

Based on the output of TestKing4 shown above, what can be determined about routes that are learned from the router at IP address 190.171.23.12?

A.If TestKing4 Router does not receive an update from 190.171.23.12 in 30 seconds, all routes from that source will be removed from the routing table

B.TestKing4 Router last received an update from 190.171.23.12 at 3:30am

C.190.171.23.12 is expected to send an update to TestKing4 Router for network 190.172.0.0 in 3 minutes and 30 seconds

D.If TestKing4 Router does not receive an update from 190.171.23.12 in 30 seconds, all routes from that source will be flagged with a hold-down timer

E.None of the above

Answer: A

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QUESTION NO: 3

Part of the TestKing WAN is shown below:

In this TestKing network segment, subnet 10.1.3.0/24 is unknown to router TestKing2. Which router command will prevent router TestKing2 from dropping a packet destined for the 10.1.3.0/24 network if a default route is configured?

A.ip default-network

B.network 10.1.1.0

C.ip classless

D.network 10.1.1.0 0.0.0.255 area 0

E.None of the above

Answer: C

QUESTION NO: 4

In the network below, HostA cannot ping HostB. Assuming routing is properly configured, what could be the cause of this problem?

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A.The Fa0/0 interface on TK-B is using a broadcast address.

B.The serial interfaces of the routers are not on the same subnet.

C.The address of SwitchA is a subnet address.

D.The Fa0/0 interface on router TK-A is on a subnet that can't be used.

E.HostA is not on the same subnet as its default gateway.

F.None of the above

Answer: B Explanation:

A subnet mask of /27 (255.255.255.224) will have 3 bits used for the network portion and 5 bits for the host portion. This will create 2^3 = 8 networks with 2^5 = 32 hosts per network. From this we know that the number of subnets will be a multiple of 32, making the subnets:

1.192.168.1.0

2.192.168.1.32

3.192.168.1.64

4.192.168.1.96

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5.192.168.1.128

6.192.168.1.160

7.192.168.1.192

8.192.168.1.224

From this, we can see that the serial interface of router TK-A lies within the second network shown above while the serial interface of TK-B lies within the third. For directly connected routers they should be in the same IP subnet.

QUESTION NO: 5

The TestKing network is shown in the exhibit below:

The show ip route command was issued from one of the routers shown in the exhibit and the following output was displayed:

10.0.0.0/30 is subnetted, 4 subnets

O 10.10.10.8 [110/128] via 10.10.10.2, 00:02:44, Serial0/0 O 10.10.10.12 [110/128] via 10.10.10.6, 00:02:44, Serial0/1 C 10.10.10.0 is directly connected, Serial0/0

C 10.10.10.4 is directly connected, Serial0/1

C 192.168.1.0/24 is directly connected, FastEthernet0/0

O 192.168.2.0/24 [110/138] via 10.10.10.6, 00:02:44, Serial0/1 [110/138] via 10.10.10.2, 00:02:44, Serial0

Which router produced this output?

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A.TK1

B.TK2

C.TK3

D.TK4

Answer: B Explanation:

You can see the host having address 192.168.1.25 is connected to the TK2 router through switch SW1 in the ethernet port of the router. Based on the diagram, the 192.168.1.0 is connected to the LAN port of TK2, and in the routing table we see that this network is indeed shown as a connected route on the Fa 0/0 interface.

Section 16: Verify router hardware and software operation using SHOW & DEBUG commands. (7 questions)

QUESTION NO: 1

The following debug was used on a TestKing router:

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Based on the information shown above, which of the following statement are true regarding the command output shown in the exhibit? (Choose two)

A.There are at least two routers participating in the RIP process

B.A ping to 10.0.15.2 will be successful

C.A ping to 192.168.168.2 will successful

D.RtrA has three interfaces participating in the RIP process

Answer: A, B

QUESTION NO: 2

The "show interface Ethernet 0" command was issued on a TestKing router as shown below:

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The router output shown in the graphic indicates that 534 runts have been detected by the router interface. What are possible causes of this condition?

A.A large number of collisions

B.A faulty network interface card

C.A decrease in the size of the collision domain

D.Fragment-free switching

E.Incorrect network addressing

F.TTL failures

Answer: A, B

Explanation:

Runts are packets that are discarded because they are smaller than the medium's minimum packet size. Any Ethernet packet that is less than 64 bytes is considered a runt.

In half-duplex environments, it is possible for both the switch and the connected device to sense the wire and transmit at exactly the same time and result in a collision. Collisions can cause runts, FCS, and alignment errors, caused when the frame is not completely copied to the wire, which results in fragmented frames.

Runts are the result of collisions, faulty NIC's, duplex mismatch, IEEE 802.1Q (dot1q), or an Inter-Switch Link Protocol (ISL) configuration issue.

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Reference: http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00800a7af0.shtml

QUESTION NO: 3

Why was the "show processes" command used on a TestKing router before a debug command was entered on it?

A.To verify that the CPU utilization is low enough to handle the effects of a debug command

B.To verify the amount of space in flash memory

C.To view the number of timers that are currently in use

D.To check if the load meter file has enough space left to store the output of the debug command

E.To verify the IOS version that is running

F.None of the above

Answer: A Explanation:

The show processes command displays information about the active processes. Issue the show processes cpu command to display detailed CPU utilization statistics on these processes and the show processes memory command to show the amount of memory used.

The following is a sample output of the show processes command: TK1#show processes

CPU utilization for five seconds: 0%/0%; one minute: 0%; five minutes: 0%

PID Q Ty PC Runtime(ms) Invoked uSecs Stacks TTY Process 1 C sp 602F3AF0 0 1627 0 2600/3000 0 Load Meter

2 L we 60C5BE00 4 136 29 5572/6000 0 CEF Scanner

3 L st 602D90F8 1676 837 2002 5740/6000 0 Check heaps 4 C we 602D08F8 0 1 0 5568/6000 0 Chunk Manager

5 C we 602DF0E8 0 1 0 5592/6000 0 Pool Manager 6 M st 60251E38 0 2 0 5560/6000 0 Timers

7 M we 600D4940 0 2 0 5568/6000 0 Serial Backgroun 8 M we 6034B718 0 1 0 2584/3000 0 OIR Handler

9 M we 603FA3C8 0 1 0 5612/6000 0 IPC Zone Manager

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It is always a good idea to check the CPU utilization levels before doing anything that may increase the CPU load, such as using debug commands.

QUESTION NO: 4

Two TestKing routers are directly connected as shown below:

A network administrator cannot access Router2 from Router1. The interface is up and the line protocol is up on interface serial 0/0 on Router1. What command can the administrator enter on Router1 to verify the IP address of the serial interface on Router2?

A.telnet 164.18.1.2

B.show arp

C.show cdp neighbors detail

D.show interfaces

E.show ip route

F.trace 164.18.1.2

G.None of the above

Answer: C

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Explanation:

CDP is the cisco proprietary protocol developed by cisco is used to collect the information of locally attached or remote devices. If you unable to ping but connected interface's status for interface and line is up then you can use the show cdp neighbor detail to collect the Router's ID interface, assigned IP Address, platform etc.

The following is sample output for the show cdp neighbors detail command. router#show cdp neighbors detail

-------------------------

Device ID: lab-7206

Entry address(es):

IP address: 172.19.169.83

Platform: cisco 7206VXR, Capabilities: Router

Interface: Ethernet0, Port ID (outgoing port): FastEthernet0/0/0 Holdtime : 123 sec

Version :

Cisco Internetwork Operating System Software

IOS (tm) 5800 Software (C5800-P4-M), Version 12.1(2) Copyright (c) 1986-2002 by Cisco Systems, Inc. advertisement version: 2

Duplex: half

QUESTION NO: 5

Refer to the TestKing network shown below. A ping from 192.168.4.1 to 192.168.4.2 was unsuccessful. Which three commands will provide the most useful troubleshooting information? (Choose three)

Exhibit:

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