Testking_640-802_V13

Configuration and output exhibit:

You work as a network technician at TestKing.com. Study the exhibit carefully. A technician is troubleshooting a host connectivity problem. The host is unable to ping a server connected to Switch TestKingA. Based on the result of the testing, what could be the problem?

A.TCP/IP has not been correctly installed on the host

B.A local physical layer problem exists

C.The host NIC is not functioning

D.A remote physical layer problem exists

E.None of the above

Answer: B

QUESTION NO: 2

The following output was seen on a TestKing device:

Leading the way in IT testing and certification tools, www.testking.com

- 391 -

Study the exhibit above carefully. This graphic shows the result of an attempt to open a Telnet connection to router TestKing1 From router TestKing2. Which of the following command sequences will correct this problem?

A.TestKing2(Config)#line console 0 TestKing2(Config-line)#login TestKing2(Config-line)#password cisco

B.TestKing1 (Config)#line console 0 TestKing1(Config-line)#password cisco

C.TestKing2(Config)#line vty 0 4 TestKing2(Config-line)#login TestKing2(Config-line)#password cisco

D.TestKing1(Config)#line vty 0 4 TestKing1(Config-line)#login TestKing1(Config-line)#password cisco

E.None of the above

Answer: D

QUESTION NO: 3

Leading the way in IT testing and certification tools, www.testking.com

- 392 -

You are unable to telnet to a router at address 203.125.12.1 from a workstation with the IP address 203.125.12.23. You suspect that there is a problem with the IP protocol stack in your PC. Which of the following actions is most likely to confirm your diagnosis?

A.ping 127.0.0.0

B.ping 203.125.12.1

C.telnet 127.0.0.1

D.ping 127.0.0.1

E.tracert 203.125.12.1

F.None of the above

Answer: D Explanation:

Every Windows based PC uses the 127.0.0.1 as the local loopback IP address. Every PC will respond to this local IP address if the TCP/IP stack is correctly installed and running on the machine. If you cannot ping the loopback address of 127.0.0.1, then something is wrong with the TCP/IP protocol stack

QUESTION NO: 4

An administrator issues the command "ping 127.0.0.1" from the command line prompt on a PC host named TK1. If an ICMP reply is received, what does this confirm?

A.PC host TK1 has connectivity up to Layer 5 of the OSI model.

B.PC host TK1 has a default gateway correctly configured.

C.PC host TK1 has connectivity with a local host.

D.PC host TK1 has the TCP/IP protocol stack correctly installed.

E.PC host TK1 has connectivity with a Layer 3 device.

F.None of the above

Answer: D

QUESTION NO: 5

In the network shown below, The TestKing technician is testing connection problems. What is the problem indicated by the output from HostA?

Leading the way in IT testing and certification tools, www.testking.com

- 393 -

A.The gateway address of HostA is incorrect or not configured.

B.An access list is applied to an interface of TestKing3.

C.The routing on TestKing2 is not functioning properly.

D.The Fa0/24 interface of Switch1 is down.

E.None of the above

Answer: A Explanation:

Since pings sent to router TestKing1 are successful, we know that basic connectivity exists at least to the first hop toward the destination. However, when we perform a traceroute to the destination, the first hop does not show up at all. This is due to the fact that the host does not have a default gateway specified, and therefore does not know where to send traffic with a destination address in a different subnet.

Incorrect Answers:

Leading the way in IT testing and certification tools, www.testking.com

- 394 -

B:Although this may indeed be true, if this were the problem, then the traceroutes would at least reach router TestKing3.

C:If this were the problem, then the traceroute would have at least reached the first hop.

D:If this were true, then pings sent to 192.168.3.254 would be unsuccessful.

QUESTION NO: 6

Regarding the extended ping command; which of the statements below are true? (Select all valid answer choices)

A.The extended ping command is supported from user EXEC mode.

B.The extended ping command is available from privileged EXEC mode.

C.With the extended ping command you can specify the TCP and UDP port to be pinged.

D.With the extended ping command you can specify the timeout value.

E.With the extended ping command you can specify the datagram size.

Answer: B, D, E Explanation:

The extended ping command works only at the privileged EXEC command line.

Some of the extended ping command values include the datagram size and timeout value as shown:

Datagram size [100]: Size of the ping packet (in bytes). Default: 100 bytes. Timeout in seconds [2]: Timeout interval. Default: 2 (seconds). The ping is declared successful only if the ECHO REPLY packet is received before this time interval. Incorrect Answers:

A. Regular pings are available in both user and privileged mode, but not extended pings. C. Ports can not be specified.

QUESTION NO: 7

When you use the ping command to send ICMP messages across a network, what's the most common request/reply pair you'll see? (Select one answer choice)

A.Echo request and Echo reply

B.ICMP hold and ICMP send

C.ICMP request and ICMP reply

D.Echo off and Echo on

E.None of the above

Leading the way in IT testing and certification tools, www.testking.com

- 395 -

Answer: A Explanation:

The ICMP protocol uses Echo request and Echo reply with the Ping command. The PING utility is the most commonly used message to verify connectivity to a remote device within the network.

QUESTION NO: 8

Part of the TestKing network is shown below:

Ping exhibit:

Tracert exhibit:

Leading the way in IT testing and certification tools, www.testking.com

- 396 -

You work as a network technician at TestKing.com. You are testing connection problems in the network and your PC (host TestKingA) has provided the output shown above. What is the problem indicated by this output?

A.The routing on Router TestKing2 is not functioning properly.

B.The Fa0/24 interface of Switch TestKing4 is down.

C.An access list is applied to an interface of Router TestKing3.

D.The gateway address of Host TestKingA is incorrect or not configured.

E.None of the above

Answer: D Explanation:

Destination Host Unreachable - This error message means that no local or remote route exists for a destination host at the sending host or at a router. Troubleshoot the local host or the router's routing table. In this case, the local host does not have a route to the destination, which means that the default gateway has not been configured.

Incorrect Answers:

A:If this were the case, the "Destination host unreachable" message would have come from the router (default gateway), not the local host.

B:If this were true, the IP address of the default gateway would not be reachable.

C. Based on the output shown above, the traffic is not even being sent to the router at all so an access list problem can be ruled out until traffic gets sent from the host to the default gateway.

Section 8: Perform and verify routing configuration tasks for a static or default route given specific routing requirements (11 questions)

QUESTION NO: 1

Leading the way in IT testing and certification tools, www.testking.com

- 397 -

The TestKing network administrator has issued the "ip route 172.16.33.0 255.255.255.0 192.168.22.44" command on a TestKing router. Which two statements are true about this command? (Choose two)

A.It configures the router to send any traffic for an unknown destination to the 172.16.33.0 network

B.It establishes a static route to the 172.16.33.0 network

C.It uses the default administrative distance

D.It establishes a static route to the 192.168.22.0 network

Answer: B, C

QUESTION NO: 2

Part of the TestKing network is shown below:

Study the exhibit shown above carefully. In this TestKing network segment, you add the following command to the TestKing1 router configuration:

ip route 192.168.12.0 255.255.255.0 172.16.12.1.

What are the results of adding this command? (Choose two)

A.Traffic for network 172.16.12.0 is forwarded to the 192.168.12.0 network

B.The command establishes a static route

C.Traffic for al l networks is forwarded to 172.16.12.1

D.The command invokes a dynamic routing protocol for 192.168.12.0

E.Traffic for network 192.168.12.0 is forwarded to 172.16.12.1

Leading the way in IT testing and certification tools, www.testking.com

- 398 -

F. This route is automatically propagated throughout the entire network

Answer: B, E

Explanation:

To create static routes on a Cisco router, you use the ip route command followed by the destination network, network mask, and either the next-hop IP address or the local exit interface. It's vital to keep that last part in mind - you're either configuring the IP address of the downstream router, or the interface on the local router that will serve as the exit interface.

Let's say your local router has a serial0 interface with an IP address of 200.1.1.1/30, and the downstream router that will be the next hop will receive packets on its serial1 interface with an IP address of 200.1.1.2/30. The static route will be for packets destined for the 172.10.1.0 network. Either of the following ip route statements would be correct.

R1(config)#ip route 172.10.1.0 255.255.255.0 200.1.1.2 (next-hop IP address)

OR

R1(config)#ip route 172.10.1.0 255.255.255.0 serial0 ( local exit interface)

QUESTION NO: 3

You need to configure a default route on a TestKing router. Which command will configure a default route on a router?

A.TK1(config)# ip route 0.0.0.0 10.1.1.0 10.1.1.1

B.TK1(config)# ip default-route 10.1.1.0

C.TK1(config)# ip default-gateway 10.1.1.0

D.TK1(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.1

Answer: D Explanation:

The command "IP route 0.0.0.0 0.0.0.0 <ip-address of the interface>" command is used to configure a default route on a router. In this case, a default route with a next hop IP address of 10.1.1.1 was configured.

Incorrect Answers:

A. This will be an invalid route, since the "10.1.1.0" value will specify the network mask, which in this case is invalid.

Leading the way in IT testing and certification tools, www.testking.com

- 399 -

B, C. These commands are invalid. The command "ip default-network" could be used, but not "ip default-route" or "ip default-gateway". IP default-gateway is used on switches, not routers.

QUESTION NO: 4

Static routing needs to be configured on router TK1. In which situation would the use of a static route be appropriate?

A.To configure a route to the first Layer 3 device on the network segment.

B.To configure a route from an ISP router into a corporate network.

C.To configure a route when the administrative distance of the current routing protocol is too low.

D.To reach a network is more than 15 hops away.

E.To provide access to the Internet for enterprise hosts.

F.None of the above

Answer: B Explanation:

Static routes are special routes that the network administrator manually enters into the router configuration. Stub networks are the ideal candidate for static routes.

There is no need to run a routing protocol over the WAN links between an ISP Router and a corporate network when only a single Internet link exists.

QUESTION NO: 5

The TestKing network is shown below:

Leading the way in IT testing and certification tools, www.testking.com

- 400 -