QUESTION NO: 10 Exhibit:

In the TestKing network segment shown above, host TestKingA must be able to telnet to switch TestKing1 through router TestKing2 for management purposes.

What must be configured or done for this connection to be successful?

A. VLAN 1 on TestKing1

B. A default gateway on TestKing1

C. A cross-over cable connecting TestKing1 and TestKing2

D. IP routing on TestKing1 E. None of the above

Answer: B Explanation:

In order for a switch to send traffic to a destination that is not located directly, as is the case in our example, a default gateway must be configured on the switch. This will enable it to send the traffic to router TestKing2 where it can be routed to host TestKingA.

Incorrect Answers:

A: This is the default VLAN used and does not need to be configured.

C: A cross over cable is used to connect two switches or two routers together back to back, but a straight through cable should be used when connecting a switch to a routers.

D: IP routing does not need to be enabled, just the default gateway.

Section 6: Verify network status and switch operation using basic utilities (including: ping, traceroute, telnet, SSH, arp, ipconfig), SHOW & DEBUG commands (8 questions)

QUESTION NO: 1

Network topology exhibit:

Output exhibit:

You work as a network technician at TestKing and you issued the arp -a command from a host named TestKingA as shown above.

The user of host TestKingA wants to ping the DSL modem/router at 192.168.1.254.

Based on the Host TestKingA ARP table that is shown in the exhibit, what will host TestKingA do?

A. Send a unicast ARP packet to the DSL modem/router

B. Send a Layer 2 broadcast that is received by Host TestKingB, the switch and the DSL modem/router

C. Send unicast ICMP packets to the DSL modem/router

D. Send Layer 3 broadcast packets to which the DSL modem/router responds E. None of the above

Answer: C

QUESTION NO: 2

While troubleshooting a connectivity problem, the TestKing network administrator notices that a port status LED on a Cisco Catalyst Series switch is alternating between green and amber. Which condition could this indicate?

A. The port is experiencing errors

B. The port has ac active link with normal traffic activity C. The port blocked by spanning tree

D. The port is administratively disabled E. None of the above

Answer: A

QUESTION NO: 3

Two TestKing hosts are connected as shown below:

Ping Exhibit:

In the network shown above, a network administrator attempts to ping Host TestKingII from Host TestKingI and receives the results that are shown. What is a possible problem?

A. TCP/IP is not functioning on Host TestKingI

B. The default gateway on Host TestKingI is incorrect

C. The link between Router TestKing1 and Router TestKing2 is down D. The link between Host TestKingI and Swtich TestKingA is down E. Interface Fa0/0 on Router TestKing1 is down

F. The link between Switch TestKingA and Router TestKing1 is down G. None of the above

Answer: C

QUESTION NO: 4

Two TestKing switches are connected together as shown below:

The interface status of TestKing A is shown below:

The TestKing network administrator has verified that a functioning cable connects Switch TestKing1 and Switch TestKing2 shown above. From the output that is shown above, what two pieces of information below are true? (Choose two)

A. Using a source MAC address of 0009.11f3.8848, Switch TestKing2 is sending frames to Switch TestKing1

B. The status of fa0/2 should be checked on Switch TestKing2 C. The interface is functional at OSI layer 1

D. There is likely to be an IP address issue on Switch TestKing1 Fa0/1

E. Interface fa0/1 on Switch TestKing1 is in a shutdown state F. Switch TestKingB is not powered on

Answer: B, C

QUESTION NO: 5

Two TestKing routers are connected as shown below:

After configuring the routers shown in the graphic, the technician decides to test and document the network. Pings from the technician's laptop to all of the interfaces on each router were successful. If a technician initiates a Telnet session to Testking 1 and issues the "show arp" command, which of the following items will be among the entries displayed in the output?

A. The MAC address of the S0 interface on Testking 1 B. The MAC address of the E0 interface on Testking 1 C. The MAC address of the S0 interface on Testking 2 D. The MAC address of the E0 interface on Testking 2 E. None of the above

Answer: B Explanation:

To display the Address Resolution Protocol (ARP) cache, enter the show arp

command in EXEC mode. ARP establishes correspondences between network addresses (an IP address, for example) and Ethernet hardware addresses. A record of each

correspondence is kept in a cache for a predetermined amount of time and then discarded.

Serial interfaces will not appear, only the local Ethernet interfaces on the router.

QUESTION NO: 6

You are the administrator of the TestKing LAN and you have been reviewing error logs of networking devices and notice a large number of errors associated with several MAC addresses. You suspect that some of the errors are being generated by the routers. Which router commands will allow you to find the ip address associated with each MAC address? (Choose two)

A. show arp

The "show arp" command Displays the entries in the ARP table, including their layer 2 MAC address and layer 3 IP address.

Example:

The following is the output for the show arp command on Router 1:

TK1 # show arp

Protocol Address Age (min) Hardware Addr Type Interface Internet 10.0.0.3 0 0004.dd0c.ffcb ARPA Ethernet01 Internet 10.0.0.1 - 0004.dd0c.ff86 ARPA Ethernet0

To see the MAC (hardware) address of the router interfaces as well as their IP addresses, use the "show interfaces" command as shown in the example below:

TK1# show interfaces

Ethernet 0 is up, line protocol is up

Hardware is MCI Ethernet, address is 0000.0c00.750c (bia 0000.0c00.750c)

Internet address is 10.108.28.8, subnet mask is 255.255.255.0

MTU 1500 bytes, BW 10000 Kbit, DLY 100000 usec, rely 255/255, load 1/255

QUESTION NO: 7

The TestKing network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test? (Choose two)

A. ARP

ARP finds the hardware address of a host from a known IP address. Here's how it works:

when IP has a datagram to send, it must inform a Network Access protocol, such as Ethernet or Token Ring, of the destination's hardware address on the local network. (It has already been informed by upper-layer protocols of the destination's IP address.) If IP doesn't find the destination host's hardware address in the ARP cache, it uses ARP to find this information.

ICMP works at the Network layer and is used by IP for many different services. ICMP is a management protocol and messaging service provider for IP. Its messages are carried as IP datagrams. RFC 1256 is an annex to ICMP, which affords hosts' extended capability in discovering routes to gateways. Periodically, router advertisements are announced over the network, reporting IP addresses for the router's network interfaces. Hosts listen for these network infomercials to acquire route information. A router solicitation is a request for immediate advertisements and may be sent by a host when it starts up.

QUESTION NO: 8

Refer to the TestKing network segment shown below:

In this network, The TestKing manager on workstation M uses Telnet to log in to the command line interface of router A. The administrator wishes to discover information about active workstations on the LAN attached to router A, including their IP and MAC addresses. Which command will provide this information?

A. show running-config B. show hosts

C. show ip arp

D. show cdp neighbors E. show interfaces F. None of the above

Answer: C Explanation:

ARP establishes correspondences between network addresses (an IP address, for example) and LAN hardware addresses (Ethernet addresses). A record of each

correspondence is kept in a cache for a predetermined amount of time and then discarded.

The following is sample output from the show ip arp command:

TK1# show ip arp

Protocol Address Age(min) Hardware Addr Type Interface Internet 172.16.233.22 9 0000.0c59.f892 ARPA Ethernet0/0 Internet 172.16.233.21 8 0000.0c07.ac00 ARPA Ethernet0/0 Internet 172.16.233.19 - 0000.0c63.1300 ARPA Ethernet0/0 Internet 172.16.233.30 9 0000.0c36.6965 ARPA Ethernet0/0

Reference:

http://www.cisco.com/en/US/products/sw/iosswrel/ps5187/products_command_reference_chapter09186a008017d166.html#wp1079902

Section 7: Identify, prescribe, and resolve common switched