Testking_640-802_V13

Explanation:

Distance Vector routing protocols employ the split horizon mechanism to reduce the possibility of routing loops. Split horizon blocks information about routes from being advertised by a router out of any interface from which that information originated.

RIP versions 1 and 2 also use the concept of hold timers. When a destination has become unreachable (or the metric has increased enough to cause poisoning), the destination goes into "holddown". During this state, no new path will be accepted for the same destination for this amount of time. The hold time indicates how long this state should last.

Incorrect Answers:

A, C, D, F. Although these are all features and functions of RIP version 2, they are not mechanisms used to prevent routing loops.

G. Path Vectoring is a concept used by BGP routers. RIP version 1 and 2 are considered to be distance vector routing protocols.

QUESTION NO: 4

Refer to the following TestKing network:

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S0/0 on TK1 is configured as a multipoint interface to communicate with TK2 and TK3 in the hub-and-spoke Frame Relay topology shown in the exhibit. Originally, static routes were configured between these routers to successfully route traffic between the attached networks. What will need to be done in order to use RIP v2 in place of the static routes?

A.Configure the no ip subnet-zero command on TK1, TK2, and TK3.

B.Dynamic routing protocols such as RIP v2 cannot be used across Frame Relay networks.

C.Configure the s0/0 interface on TK1 as two subinterfaces and configure point-to-point links to TK2 and TK3.

D.Change the 172.16.2.0/25 and 172.16.2.128/25 subnetworks so that at least two bits are borrowed from the last octet.

E.Change the network address configurations to eliminate the discontiguous 172.16.2.0/25 and 172.16.2.128/25 subnetworks.

Answer: C Explanation:

For Dynamic Routing in Hub-and spoke topology, configure the subinterface for each link then define the link as point to point. One reason for the use of subinterfaces is to circumvent the rule of split horizon. Split horizon dictates that a route cannot be advertised out the same interface upon which it was learned in the first place. This can be a problem in hub and spoke frame relay networks, but by using pt-pt subinterfaces this problem will be eliminated.

QUESTION NO: 5

The following output was shown on router TK1:

Based on the information shown above, what can be determined from the line of show ip route output shown in the exhibit? (Choose two)

A. The 10.10.10.8 network is two hops away from this router.

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B.The next routing update can be expected in 35 seconds.

C.The IP address 10.10.10.6 is configured on S0/1.

D.The IP address 10.10.10.8 is configured on S0/1.

E.This route is using the default administrative distance.

Answer: A, E

Explanation:

When issuing the "show ip route" command, the first number in the brackets is the administrative distance of the information source; the second number is the metric for the route. In this case, the value of 120 is the default AD for RIP routes, and the 2 represents the metric, which is the number of router hops in RIP.

Section 5: Access and utilize the router to set basic parameters. (including: CLI/SDM) (7 questions)

QUESTION NO: 1

Which one of the following commands would you enter to terminate a VTY line session?

A.close

B.disable

C.disconnect

D.suspend

E.exit

F.None of the above

Answer: E Explanation:

A VTY line is a telnet session. To end a telnet session from a remote device, enter the exit or logout command.

Incorrect Answers:

A, B, C, D. These are all invalid commands.

QUESTION NO: 2

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You work as a network engineer at TestKing.com. You are required to allow establishment of a Telnet session with a router TestKingC.

Which set command must be configured?

A.TestKingC(config)# line console 0 TestKingC(config-line)# enable password testking

B.TestKingC(config)# line console 0 TestKingC(config-line)# enable secret testking TestKingC(config-line)# login

C.TestKingC(config)# line console 0 TestKingC(config-line)# password testking TestKingC(config-line)# login

D.TestKingC(config)# line vty 0 TestKingC(config-line)# enable password testking

E.TestKingC(config)# line vty 0 TestKingC(config-line)# enable secret testking TestKingC(config-line)# login

F.TestKingC(config)# line vty 0 TestKingC(config-line)# password testking TestKingC(config-line)# login

Answer: F

Explanation:

CLI Password Configuration:

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QUESTION NO: 3

Which sequence of actions will allow telnet traffic from a TestKing user's PC to a router using TCP/IP?

A.Connect the PC's COM port to the router's console port using a straight-through cable.

B.Connect the PC's COM port to the router's console port using a crossover cable.

C.Connect the PC's COM port to the router's Ethernet port using a straight-through cable.

D.Connect the PC's Ethernet port to the router's Ethernet port using a crossover cable.

E.Connect the PC's Ethernet port to the router's Ethernet port using a rollover cable.

F.Connect the PC's Ethernet port to the router's Ethernet port using a straight-through cable.

G.None of the above

Answer: D Explanation:

A crossover cable is used to directly connect a switch to a switch, a hub to a hub, a host to a host, or a host's Ethernet port to a router's Ethernet interface. If your Router's interface is configured with IP addressing and telnet service is enabled you can log through the telnet program into your router.

Incorrect Answers:

A, B, C: The COM port is used for direct terminal connections to a router, via the use of terminal emulation programs such as hyperterminal.

E:A rollover cable is used to connect via a console connection.

F:A straight through cable would be used if there was a LAN switch or a hub in place, but when connecting to the router directly from a PC a cross over cable should be used.

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QUESTION NO: 4

You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into router TK1 locally using a terminal emulation program such as HyperTerminal.

A.Connect the PC's COM port to the router's console port using a straight-through cable.

B.Connect the PC's COM port to the router's console port using a rollover cable.

C.Connect the PC's COM port to the router's Ethernet port using a straight-through cable.

D.Connect the PC's Ethernet port to the router's Ethernet port using a rollover cable.

E.Connect the PC's Ethernet port to the router's Ethernet port using a straightthrough cable.

F.None of the above

Answer: B Explanation:

To connect the Router in Console port to configure using HyperTerminal, you required the Rollover Cable, which connects the PC's COM port to the router's Console port.

Incorrect Answers:

A, C, E: Straight Cables are used for: Host to switch, Switch to Router.

D: Rollover cables are used for Console/COM connections, not for IP traffic over the Ethernet ports.

QUESTION NO: 5

Which router console commands shown below are used to manage telnet sessions to other routers? (Select three)

A.TestKingD# disconnect 3

B.TestKingD# exit session 2

C.TestKingD# kill connection 1

D.TestKingD# show sessions

E.TestKingD# show connection all

F.TestKingD# resume 4

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Answer: A, D, F

Explanation:

Reference: Cisco Press CCNA Study Guide, p.392

QUESTION NO: 6

Part of the configuration of router TK1 is shown below:

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What is the effect of the configuration shown above on router TK1?

A.It configures SSH globally for all logins.

B.It tells the router or switch to try to establish an SSh connection first and if that fails to use Telnet.

C.It configures the virtual terminal lines with the password 030752180500.

D.It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports.

E.It allows seven failed login attempts before the VTY lines are temporarily shutdown.

F.None of the above.

Answer: D Explanation:

Secure Shell (SSH) is a protocol which provides a secure remote access connection to network devices. Communication between the client and server is encrypted in both SSH version 1 and SSH version 2. If you want to prevent non-SSH connections, add the "transport input ssh" command under the lines to limit the router to SSH connections only. Straight (non-SSH) Telnets are refused.

Reference: www.cisco.com/warp/public/707/ssh.shtml

QUESTION NO: 7

You need to make changes to a new TestKing router. By which prompt is the global configuration mode on this router identified?

A.Router(config-line)#

B.Router(config-router)#

C.Router#

D.Router(config)#

E.Router>

F.Router(config-if)#

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G. None of the above

Answer: D Explanation:

There are many different configuration modes. Each of these makes changes to the device configuration. To ensure that those configuration changes are not lost if the router reboots, you must copy the running configuration to the startup configuration. The type and number of configuration submodes depends on the type of router, the Cisco IOS version, and the components installed on the router:

- Global configuration modeThe command for accessing the global configuration mode is configure terminal. In the global configuration mode, the router continues to display its host name followed by (config) and the # symbol:

RouterA#configure terminal RouterA(config)#

The global configuration mode is where you can make "global" changes to the configuration of the router. A common example of a global configuration is the creation of an access list. From the global configuration mode, you can move to a position that enables you to configure specific components of the router, such as the router interfaces; virtual private network (VPN) components (isakmp, crypto, and so on); CLI connections (line); authentication, authorization, and accounting (AAA) server groups; and many more. To exit to the privileged global configuration mode, use the key combination Ctrl-Z or type the command "end."

Section 6: Connect, configure, and verify operation status of a device interface (8 questions)

QUESTION NO: 1 SIMULATION

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You work as a network engineer at TestKing.com.

You are required to set up the TestKing network.

There are two separate tasks.

Task 1:

First you need to make the following placements:

*place a router or switch at each device spot

*place a connection type at each connections spot

*place an IP address at each IP spot

Task 2:

Configure each, if any, additional router as follows:

* each additional interface should have the correct IP address and be enabled

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