Cisco Certified Network Associate 200-301 CCNA Exam Questions and Answers – Page 3

The latest Cisco Certified Network Associate 200-301 CCNA certification actual real practice exam question and answer (Q&A) dumps are available free, which are helpful for you to pass the Cisco Certified Network Associate 200-301 CCNA exam and earn Cisco Certified Network Associate 200-301 CCNA certification.

Exam Question 221

Which of the following commands will let you see the current operating mode for a switch port?

A. show interface fastethernet0/1 detail
B. show controllers fastethernet0/1
C. show interface fastethernet0/1 status
D. show interfaces fastethernet0/1 switchport

Correct Answer:
D. show interfaces fastethernet0/1 switchport
Answer Description:
The show interfaces switchport command is used to verify the operational and configured status of a switch port. The output of the command is follows:
switch# show interfaces fastethernet0/1 switchport
Name: Fa0/1
Switchport: Enabled
Administrative Mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Voice VLAN: none
<Output omitted>
This output indicates that the operational mode of the port is “static access,” which means the port is currently operating as an access port.
The show controllers command is used to view hardware-related information on router and switch interfaces. It is useful for troubleshooting and diagnosing issues with interfaces. It does not display the operational status of the switch port.
The show interface fastethernet0/1 detail and show interface fastethernet0/1 status commands are incorrect because they are not valid Cisco IOS commands.
Objective: Infrastructure Management
Sub-Objective: Use Cisco IOS tools to troubleshoot and resolve problems

Exam Question 222

Your network is configured as shown in the following exhibit. When you trace traffic sourced from R3 destined for a LAN network off of R2 (not shown in the diagram), you see the traffic is being forwarded from R1 to ISP1 rather than to R2.

Which of the following issues could NOT be causing this behavior?

A. The network command has not been executed on the interface leading to the LAN off R2
B. The passive interface command has been issued on the Gi0/4 interface of R1
C. A default route exists on R1 that leads to ISP1
D. RIPv2 has not been enabled on R2

Correct Answer:
B. The passive interface command has been issued on the Gi0/4 interface of R1
Answer Description:
This issue would NOT be caused by executing the passive interface command on the Gi0/4 interface of R1. This command prevents the advertisement of RIP routes on that interface. If that command had been issued, the traffic would not be forwarded to R1 because R3 would not know about the route to the LAN off of R2. This command would also prevent R3 from knowing about the default route to ISP1. Since the traffic is being routed to ISP1, this command must not have been executed.
All of the other options could potentially because traffic destined for R2 to be forwarded from R1 to ISP1, rather than to R2.
It is true that a default route exists on R1 that leads to ISP1. If this default route did not exist, the traffic destined for R2 would simply be dropped at R1 instead of being forwarded to ISP1.
If the network command has not been executed on the interface leading to the LAN off of R2, the network leading to the LAN off R2 would not advertised by R2. That would make R1 unaware of this destination. In that case, R1 would use the default route to send traffic destined for R2 to ISP1. We know such a default route must exist, or the traffic would simply be dropped at R1.
If RIPv2 has not been enabled on R2, R2 would not be receiving or advertising any RIP routes. When the packets destined for the network off of R2 arrive at R1, R1 will have not have a route to that network. In that case R1 will forward the traffic to ISP1 using the default route.
Objective: Routing Fundamentals
Sub-Objective: Configure, verify, and troubleshoot RIPv2 for IPv4 (excluding authentication, filtering, manual summarization, redistribution)

Exam Question 223

You are the network administrator for your company. You are in the process of verifying the configuration of the network devices to ensure smooth network connectivity. You want information on the routes taken by packets so that you are able to identify the network points where packets are getting dropped.
Which Cisco IOS command should you use to accomplish this task in the most efficient manner?

A. tracert
B. traceroute
C. extended ping
D. ping

Correct Answer:
B. traceroute
Answer Description:
You should use the traceroute command. The traceroute command finds the path a packet takes while being transmitted to a remote destination. It is also used to track down routing loops or errors in a network. The following code is a sample output of the traceroute command:

The tracert command is incorrect because this command is used by Microsoft Windows operating systems, not the Cisco IOS command line interface. However, the purpose of the tracert command is similar to the Cisco traceroute utility, namely to test the connectivity or “reachability” of a network device or host. The tracert command uses Internet Control Message Protocol (ICMP).
The extended ping Cisco IOS command can be issued on a router to test connectivity between two remote routers. This option is incorrect because you are not testing connectivity in this scenario; you want to determine the route a packet takes through the internetwork.
The ping command is also incorrect because you are not testing connectivity in this scenario; you want to determine the route a packet takes through the internetwork.
Objective: Routing Fundamentals
Sub-Objective: Configure, verify, and troubleshoot IPv4 and IPv6 static routing

Exam Question 224

Which of the following is NOT a packet type used by Enhanced Interior Gateway Routing Protocol (EIGRP)?

A. Query
B. Reply
C. Ack
D. Response

Correct Answer:
D. Response
Answer Description:
Response is not a packet type used by EIGRP. The following are the packet types used by EIGRP:

• Hello/Ack: Establish neighbor relationships. The Ack packet is used to provide acknowledgement of a reliable packet.
• Update: Send routing updates.
• Query: Ask neighbors about routing information.
• Reply: Provide response to queries about routing information.
• Requests: Gain specific information from one or more neighbors.

Objective: Routing Fundamentals
Sub-Objective: Configure, verify, and troubleshoot EIGRP for IPv4 (excluding authentication, filtering, manual summarization, redistribution, stub)

Exam Question 225

Refer to the network diagram in the exhibit. Host A is configured with an incorrect default gateway. All other computers and the Router are known to be configured correctly (Click the Exhibit(s) button.)

Which of the following statements is TRUE?

A. Host C on Network A cannot communicate with Host A on Network A.
B. Host A on Network A can communicate with all other hosts on Network A.
C. Host A on Network A can communicate with Router R.
D. Host C on Network A cannot communicate with Router R.
E. Host D on Network B cannot communicate with Host B on Network A.

Correct Answer:
B. Host A on Network A can communicate with all other hosts on Network A.
C. Host A on Network A can communicate with Router R.
Answer Description:
Host A on Network A can communicate with all other hosts on Network A and with Router R. To communicate with local hosts and the interface of Router R (which are all in the same subnet) only a correct IP address is reqired. If the default gateway of Host A is incorrect, then it will not be able to communicate with any host on the other side of the router, which includes Network B in the diagram. Packets from hosts on Network B will reach Host A on Network A without any problem, because they possess the correct address of the default gateway or router, but Host A will send the packet to a dead end because Host A has an incorrect default gateway. On the other hand, Host A does not require a default gateway to communicate with other hosts on same network.
Host C on Network A WILL be able to communicate with Host A on Network A , even though Host A has an incorrect default gateway because Host A and C are in the same subnet, which requires no use of the of the gateway or router..
Host C on Network A WILL be able to communicate with Router R because Host C has the correct default gateway address which is the address of Router R.
Host D on Network B WILL be able to communicate with Host B on Network A because both hosts have a correct default gateway address.
Objective: Routing Fundamentals
Sub-Objective: Troubleshoot basic Layer 3 end-to-end connectivity issues

Exam Question 226

When transmitting to a remote destination, what two things will occur after a host has determined the IP address of the destination to which it is transmitting? (Choose two.)

A. The sending host will perform an ARP broadcast in its local subnet using the IP address of the destination host.
B. The sending host will perform an ARP broadcast in its local subnet using the IP address of the local router interface.
C. The local router interface will respond with the MAC address of the destination host.
D. The local router interface will respond with its own MAC address.
E. The destination host will respond with its own MAC address.

Correct Answer:
B. The sending host will perform an ARP broadcast in its local subnet using the IP address of the local router interface.
D. The local router interface will respond with its own MAC address.
Answer Description:
When a transmission is made to a remote location, the sending host will perform an Address Resolution Protocol (ARP) broadcast in its local subnet using the IP address of the local router interface, and the local router interface will respond with its own MAC address. A remote address is defined as an address in a different subnet.
When a host determines (through a process called ANDing) that a destination address is remote, it will send the packet to the local router interface, which is known as the default gateway on the host. But when it performs ANDing on the IP address of the local router interface, it will discover that the interface is local.
When transmitting to a local IP address, a conversion to a MAC address must occur. Therefore, it will perform a local ARP broadcast, and the local router interface will respond with its MAC address.
Regardless of whether the host is broadcasting for the MAC address of the destination locally on the same LAN, or if it is broadcasting for the MAC address of the router interface (remotely), the broadcast will be a Layer 2 broadcast using the MAC address ff-ff-ff-ff-ff. It will be received by all devices on the LAN, but only the device with the specified IP address will reply.
The ARP resolution process does take a second or two to complete if no mapping for the destination devices IP address to MAC address is found in the ARP cache. For example, if the MAC address must be resolved through the ARP broadcast when pinging from one device to another, it can cause the first several echo requests to go unanswered, as shown on the output below. After this resolution has been completed, however, the second ping attempt should receive an answer to all five ICMP echo requests.
Router1#ping 50.6.3.26
Type escape sequence to abort
Sending 5, 100-byte ICMP Echos to 50.6.3.26, timeout is 2 seconds:
..!!!
Router1#ping 50.6.3.26
Type escape sequence to abort
Sending 5, 100-byte ICMP Echos to 50.6.3.26, timeout is 2 seconds:
!!!!!
The sending host will not perform an ARP broadcast in its local subnet using the IP address of the destination host. A local ARP broadcast is only performed when the ANDing process deduces that the destination IP address is local. In this case, the destination is remote.
The destination host will not respond with its MAC address. The process of learning the MAC address of the destination computer is the responsibility of the local router interface on the subnet where the destination host resides.
Objective: LAN Switching Fundamentals
Sub-Objective: Describe and verify switching concepts

Exam Question 227

What IOS command produced the following output?

A. show interface mac
B. show mac
C. show mac-address-table
D. show ip interface

Correct Answer:
C. show mac-address-table
Answer Description:
The output was produced by the show mac-address-table command. The show mac-address-table command displays a table of every learned MAC address and the switch port associated with the MAC address. The output shown in the question indicates that four MAC addresses have been learned by this switch, and the last column indicates the switch port over which each MAC address was learned, and for which frames destined for each MAC address will be forwarded. The MAC address table is built dynamically by examining the source MAC address of received frames.
The show ip interface command is a router command, and displays no information on MAC address tables.
The show interface mac and show mac commands are incorrect because they are not valid Cisco IOS commands.
Objective: LAN Switching Fundamentals
Sub-Objective: Describe and verify switching concepts

Exam Question 228

You know that Router2 is configured for RIP. Which Cisco Internetwork Operating System (IOS) command is used to view the current state of all active routing protocols?

A. show ip arp
B. debug ip rip
C. show ip protocols
D. show ip routing process
E. show arp
F. show interfaces

Correct Answer:
C. show ip protocols
Answer Description:
The show ip protocols command is used to view the current state of active routing protocols. This command is issued from Privileged EXEC mode. The syntax of the command is as follows:
Router2# show ip protocols
Output of the command would resemble the following:

This command shows additional information about individual protocols. The version number of RIP being used is shown on the seventh line of the output. This output also indicates on lines 12-14 that it is routing for three networks: 201.19.0.0, 16.2.0.0, and 10.3.0.0. This means that the router will be sending and receiving RIP updates on any interfaces that have IP addresses in those networks.
Also note that the router at 16.2.0.10 has not sent an update in 3 minutes and 10 seconds. If an update is not received in 50 seconds (for a total of 4 minutes), the route-flush timer (240 seconds from the last valid update) will have expired, causing the local router to remove all networks learned from the router at 16.2.0.10 from the routing table.
For more specific information about those interfaces, in terms such as S0 or Fa0/0, you could execute the show ip interface brief command as shown below. The output displays the addresses of the interfaces, which would indicate which interfaces were enabled for RIP and thus sending and receiving updates.

The show ip arp command is incorrect because this command is executed on a router to determine the IP and MAC addresses of hosts on a LAN connected to the router.
The debug ip rip command is incorrect because this command is used to capture RIP traffic between the routers in real time. This command could also be used to determine the version of RIP being used as shown in line 2 of the partial output of the command below:
Router2#debug ip rip
RIP protocol debugging is on
*Mar 3 02:11:39.207:RIP:received packet with text authentication 234
*Mar 3 02:11:39.211:RIP:received v1 update from 122.108.0.10 on Serial0
*Mar 3 02:11:39.211:RIP: 79.0.0.0/8 via 0.0.0.0 in 2 hops
*Mar 3 02:11:40.212:RIP: ignored v2 packet from 192.168.5.6 (illegal version)
In the above output Router 2 has received a version 1 update from a router at 122.108.0.10 which indicates that a ping to that router should succeed. It also shows what was learned from the router at 122.108.0.10, which is the router to network 79.0.0.0/8 via 0.0.0.0. The 0.0.0.0 indicates that the next hop for that route is the router that sent this advertising (the router at 122.108.0.10).
The output also shows that a RIP router at 192.168.5.6 sent a version 2 update that was ignored by Router 2, which is using version 1. This mismatch of versions will prevent Router 2 from forming an adjacency with the router at 192.168.5.6.
Note: Before running any debug command you should execute the show processes command and verify that the CPU utilization on the router is low enough to handle the effects of running the debug command.
The show ip routing process command is incorrect because it is not a valid Cisco IOS command.
The show arp command is used to identify the IP address to MAC address mappings the router has leaned through the ARP broadcast process. It is helpful when you have identified errors associated with a MAC address and you need to learn the IP address or vice versa. Sample output is below.
router# 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
The difference between the show arp command and the show ip arp command is that show arp will also include mappings learned through non-IP protocols such as when inverse ARP is used to learn and map DLCIs to IP addresses.
The show interface command can also be used to identify IP addresses from MAC addresses and vice versa, but also indicates the state of the interface; IP addresses MTU and much more about each interface. Sample output is below.
router# 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
Objective: Routing Fundamentals
Sub-Objective: Interpret the components of routing table

Exam Question 229

You apply the following commands to a router named R2:
R2(config)# interface Tunnel1
R2(config-if)# ip address 172.16.1.2 255.255.255.0
R2(config-if)# ip mtu 1400
R2(config-if)# ip tcp adjust-mss 1360
R2(config-if)# tunnel source 2.2.2.2
R2(config-if)# tunnel destination 1.1.1.1
Which statement is NOT true with regard to this configuration?

A. The physical IP address of R2 is 2.2.2.2
B. The connection will operate in IP mode
C. The configuration will increase packet fragmentation
D. The configuration alters the maximum segment size

Correct Answer:
C. The configuration will increase packet fragmentation
Answer Description:
The configuration will not increase packet fragmentation. Conversely, it will reduce it by lowering the maximum transmission unit to 1400 and the maximum segment size to 1360 bytes.
Most transport MTUs are 1500 bytes. Simply reducing the MTU will account for the extra overhead added by GRE. Setting the MTU to a value of 1400 is a common practice, and it will ensure unnecessary packet fragmentation is kept to a minimum.
The other statements are true. The physical address of R2 is 2.2.2.2, while the tunnel interface address is 172.16.1.2.
Because you have not issued any command that changes the connection, it will operate in the default mode of IP.
The configuration does alter the maximum segment size with the ip tcp adjust-mss 1360 command.
Objective: WAN Technologies
Sub-Objective: Configure, verify, and troubleshoot GRE tunnel connectivity

Exam Question 230

Which command would be used to list the timers, version of spanning tree and the bridge ID of the local and designated switch for a specific VLAN on a Cisco Catalyst 2950 series switch?

A. show spanning-tree vlan vlan-id
B. show vlan database
C. show vlan vlan-id
D. show vlan brief

Correct Answer:
A. show spanning-tree vlan vlan-id
Answer Description:
The show spanning-tree vlan vlan-id command is correct because this command shows timers, version of spanning tree, and the bridge ID of the local and designated switches for a specific VLAN on a Cisco Catalyst 2950 series switch.
The show vlan id vlan-id command is incorrect because it will show only the ports assigned to each VLAN.
The show vlan database command is incorrect because this is not a valid Cisco IOS command.
The show vlan brief command is incorrect because this command is used view the entire VLAN database, and does not provide information for a specific VLAN.
Objective: Infrastructure Management
Sub-Objective: Use Cisco IOS tools to troubleshoot and resolve problems