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Q1.  - (Topic 7)

Scenario:

Refer to the topology. Your company has decided to connect the main office with three

other remote branch offices using point-to-point serial links.

You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices.

An OSPF neighbor adjacency is not formed between R3 in the main office and R4 in the Branch1 office. What is causing the problem?

A. There is an area ID mismatch.

B. There is a Layer 2 issue; an encapsulation mismatch on serial links.

C. There is an OSPF hello and dead interval mismatch.

D. The R3 router ID is configured on R4.

Answer: A

Explanation:

A show running-config command on R3 and R4 shows that R4 is incorrectly configured for area 2:


Q2.  - (Topic 6)

Refer to the exhibit.

A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observes the output from these two show commands.

Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two.)

A. Port security needs to be globally enabled.

B. Port security needs to be enabled on the interface.

C. Port security needs to be configured to shut down the interface in the event of a violation.

D. Port security needs to be configured to allow only one learned MAC address.

E. Port security interface counters need to be cleared before using the show command.

F. The port security configuration needs to be saved to NVRAM before it can become active.

Answer: B,D

Explanation:

From the output we can see that port security is disabled so this needs to be enabled. Also, the maximum number of devices is set to 2 so this needs to be just one if we want the single host to have access and nothing else.


Q3.  - (Topic 3)

Refer to the graphic.

A static route to the 10.5.6.0/24 network is to be configured on the HFD router. Which commands will accomplish this? (Choose two.)

A. HFD(config)# ip route 10.5.6.0 0.0.0.255 fa0/0

B. HFD(config)# ip route 10.5.6.0 0.0.0.255 10.5.4.6

C. HFD(config)# ip route 10.5.6.0 255.255.255.0 fa0/0

D. HFD(config)# ip route 10.5.6.0 255.255.255.0 10.5.4.6

E. HFD(config)# ip route 10.5.4.6 0.0.0.255 10.5.6.0

F. HFD(config)# ip route 10.5.4.6 255.255.255.0 10.5.6.0

Answer: C,D

Explanation:

The simple syntax of static route:

ip route destination-network-address subnet-mask {next-hop-IP-address | exit-interface}

+ destination-network-address: destination network address of the remote network

+ subnet mask: subnet mask of the destination network

+ next-hop-IP-address: the IP address of the receiving interface on the next-hop router

+ exit-interface: the local interface of this router where the packets will go out In the statement “ip route 10.5.6.0 255.255.255.0 fa0/0:

+ 10.5.6.0 255.255.255.0: the destination network

+fa0/0: the exit-interface


Q4.  - (Topic 8)

Which protocol is the Cisco proprietary implementation of FHRP?

A. HSRP

B. VRRP

C. GLBP

D. CARP

Answer: A


Q5.  - (Topic 5)

Which command can you use to manually assign a static IPv6 address to a router interface?

A. ipv6 autoconfig 2001:db8:2222:7272::72/64

B. ipv6 address 2001:db8:2222:7272::72/64

C. ipv6 address PREFIX_1 ::1/64

D. ipv6 autoconfig

Answer: B

Explanation:

To assign an IPv6 address to an interface, use the “ipv6 address” command and specify the IP address you wish to use.


Q6.  - (Topic 5)

The network administrator is asked to configure 113 point-to-point links. Which IP addressing scheme defines the address range and subnet mask that meet the requirement and waste the fewest subnet and host addresses?

A. 10.10.0.0/16 subnetted with mask 255.255.255.252 

B. 10.10.0.0/18 subnetted with mask 255.255.255.252 

C. 10.10.1.0/24 subnetted with mask 255.255.255.252 

D. 10.10.0.0/23 subnetted with mask 255.255.255.252 

E. 10.10.1.0/25 subnetted with mask 255.255.255.252

Answer: D

Explanation:

We need 113 point-to-point links which equal to 113 sub-networks < 128 so we need to borrow 7 bits (because 2^7 = 128).

The network used for point-to-point connection should be /30. So our initial network should be 30 – 7 = 23.

So 10.10.0.0/23 is the correct answer.

You can understand it more clearly when writing it in binary form:

/23 = 1111 1111.1111 1110.0000 0000

/30 = 1111 1111.1111 1111.1111 1100 (borrow 7 bits)


Q7.  - (Topic 8)

Which command can you enter to determine whether a switch is operating in trunking mode?

A. show ip interface brief

B. show vlan

C. show interfaces

D. show interface switchport

Answer: D


Q8.  - (Topic 3)

Users on the 172.17.22.0 network cannot reach the server located on the 172.31.5.0 network. The network administrator connected to router Coffee via the console port, issued the show ip route command, and was able to ping the server.

Based on the output of the show ip route command and the topology shown in the graphic, what is the cause of the failure?

A. The network has not fully converged.

B. IP routing is not enabled.

C. A static route is configured incorrectly.

D. The FastEthernet interface on Coffee is disabled.

E. The neighbor relationship table is not correctly updated.

F. The routing table on Coffee has not updated.

Answer: C

Explanation:

The default route or the static route was configured with incorrect next-hop ip address 172.19.22.2. The correct IP address will be 172.18.22.2 to reach server located on 172.31.5.0 network. IP route 0.0.0.0 0.0.0.0 172.18.22.2


Q9. CORRECT TEXT - (Topic 7)

CCNA.com has a small network that is using EIGRP as its IGP. All routers should be running an EIGRP AS number of 12. Router MGT is also running static routing to the ISP.

CCNA.com has recently added the ENG router. Currently, the ENG router does not have connectivity to the ISP router. All over interconnectivity and Internet access for the existing locations of the company are working properly.

The task is to identify the fault(s) and correct the router configuration(s) to provide full connectivity between the routers.

Access to the router CLI can be gained by clicking on the appropriate host.

All passwords on all routers are cisco.

IP addresses are listed in the chart below.

MGT

Fa0/0 – 192.168.77.33

S1/0 – 198.0.18.6

S0/0 – 192.168.27.9

S0/1 – 192.168.50.21

ENG

Fa0/0 – 192.168.77.34

Fa1/0 – 192.168.12.17

Fa0/1 – 192.168.12.1

Parts1

Fa0/0 – 192.168.12.33

Fa0/1 – 192.168.12.49

S0/0 – 192.168.27.10

Parts2

Fa0/0 – 192.168.12.65

Fa0/1 – 192.168.12.81

S0/1 – 192.168.50.22

Answer: 

On the MGT Router: Config t

Router eigrp 12

Network 192.168.77.0


Q10.  - (Topic 3)

What is the default maximum number of equal-cost paths that can be placed into the routing table of a Cisco OSPF router?

A. 2

B. 8

C. 16

D. unlimited

Answer: B

Explanation:

maximum-paths (OSPF)

To control the maximum number of parallel routes that Open Shortest Path First (OSPF) can support, use the maximum-paths command.

Syntax Description

maximum

Maximum number of parallel routes that OSPF can install in a routing table. The range is from 1 to 16 routes.

Command Default

8 paths