2017 Cisco Official New Released 200-125 ♥♥
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Q41. 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.


Fa0/0 –

S1/0 –

S0/0 –

S0/1 –


Fa0/0 –

Fa1/0 –

Fa0/1 –


Fa0/0 –

Fa0/1 –

S0/0 –


Fa0/0 –

Fa0/1 –

S0/1 –


On the MGT Router: Config t

Router eigrp 12


Q42.  - (Topic 8)

Which option is a valid hostname for a switch?

A. Switch-Cisco

B. Switch-Cisco!

C. SwitchCisco

D. SwitchCisc0

Answer: C

Q43.  - (Topic 4)

Refer to the exhibit.

What is the meaning of the term dynamic as displayed in the output of the show frame- relay map command shown?

A. The Serial0/0 interface is passing traffic.

B. The DLCI 100 was dynamically allocated by the router.

C. The Serial0/0 interface acquired the IP address of from a DHCP server.

D. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud.

E. The mapping between DLCI 100 and the end station IP address was learned through Inverse ARP.

Answer: E


Inverse Address Resolution Protocol (Inverse ARP) was developed to provide a mechanism for dynamic DLCI to Layer 3 address maps. Inverse ARP works much the same way Address Resolution Protocol (ARP) works on a LAN. However, with ARP, the device knows the Layer 3 IP address and needs to know the remote data link MAC address. With Inverse ARP, the router knows the Layer 2 address which is the DLCI, but needs to know the remote Layer 3 IP address.

When using dynamic address mapping, Inverse ARP requests a next-hop protocol address for each active PVC. Once the requesting router receives an Inverse ARP response, it updates its DLCI-to-Layer 3 address mapping table. Dynamic address mapping is enabled by default for all protocols enabled on a physical interface. If the Frame Relay environment supports LMI autosensing and Inverse ARP, dynamic address mapping takes place automatically. Therefore, no static address mapping is required.

Q44.  - (Topic 7)

A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link.

The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?

A. The OSPF area is not configured properly.

B. The priority on R1 should be set higher.

C. The cost on R1 should be set higher.

D. The hello and dead timers are not configured properly.

E. A backup designated router needs to be added to the network.

F. The OSPF process ID numbers must match.

Answer: D


In OSPF, the hello and dead intervals must match and here we can see the hello interval is set to 5 on R1 and 10 on R2. The dead interval is also set to 20 on R1 but it is 40 on R2.

Q45.  - (Topic 8)

Which protocol is the Cisco proprietary implementation of FHRP?





Answer: A

Q46.  - (Topic 3)

Refer to the exhibit.

Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this router?





Answer: C


The highest IP address of all loopback interfaces will be chosen -> Loopback 0 will be chosen as the router ID.

Q47.  - (Topic 8)

Which two statements about IPv6 and routing protocols are true? (Choose two.)

A. Link-local addresses are used to form routing adjacencies.

B. OSPFv3 was developed to support IPv6 routing.

C. EIGRP, OSPF, and BGP are the only routing protocols that support IPv6.

D. Loopback addresses are used to form routing adjacencies.

E. EIGRPv3 was developed to support IPv6 routing.

Answer: A,B

Q48.  - (Topic 8)

If the primary root bridge experiences a power loss, which switch takes over?

A. switch 0004.9A1A.C182

B. switch 00E0.F90B.6BE3

C. switch 00E0.F726.3DC6

D. switch 0040.0BC0.90C5

Answer: A

Q49.  - (Topic 5)

What SNMP message alerts the manager to a condition on the network?

A. response

B. get

C. trap

D. capture

Answer: C


An agent can send unsolicited traps to the manager. Traps are messages alerting the SNMP manager to a condition on the network. Traps can mean improper user authentication, restarts, link status (up or down), MAC address tracking, closing of a TCP

connection, loss of connection to a neighbor, or other significant events.

Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-1_9_ea1/configuration/guide/scg/swsnmp.html

Q50.  - (Topic 4)

Which PPP subprotocol negotiates authentication options?






Answer: D


The PPP Link Control Protocol (LCP) is documented in RFC 1661. LPC negotiates link and PPP parameters to dynamically configure the data link layer of a PPP connection. Common LCP options include the PPP MRU, the authentication protocol, compression of PPP header fields, callback, and multilink options.