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Q141.  - (Topic 8)

Why has the Branch3 router lost connectivity with R1?

Use only show commands to troubleshoot because usage of the debug command is restricted on the Branch3 and R1 routers.

A. A PPP chap hostname mismatch is noticed between Branch3 and R1.

B. A PPP chap password mismatch is noticed between Branch3 and R1.

C. PPP encapsulation is not configured on Branch3.

D. The PPP chap hostname and PPP chap password commands are missing on the Branch3 router.

Answer: A

Q142.  - (Topic 7)

Which protocol can cause overload on a CPU of a managed device?

A. Netflow




Answer: D


Sometimes, messages like this might appear in the router console:

%SNMP-3-CPUHOG: Processing [chars] of [chars]

They mean that the SNMP agent on the device has taken too much time to process a request.

You can determine the cause of high CPU use in a router by using the output of the show process cpu command.

Note: A managed device is a part of the network that requires some form of monitoring and

management (routers, switches, servers, workstations, printers…).

Q143.  - (Topic 5)

What is the default Syslog facility level?

A. local4

B. local5

C. local6

D. local7

Answer: D


By default, Cisco IOS devices, CatOS switches, and VPN 3000 Concentrators use facility local7 while Cisco PIX Firewalls use local4 to send syslog messages. Moreover, most Cisco devices provide options to change the facility level from their default value.


Q144.  - (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.

Q145.  - (Topic 8)

What is one requirement for interfaces to run IPv6?

A. An IPv6 address must be configured on the interface.

B. An IPv4 address must be configured.

C. Stateless autoconfiguration must be enabled after enabling IPv6 on the interface.

D. IPv6 must be enabled with the ipv6 enable command in global configuration mode.

Answer: A

Explanation: To use IPv6 on your router, you must, at a minimum, enable the protocol and assign IPv6 addresses to your interfaces.

Q146. CORRECT TEXT - (Topic 7) 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. 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


Q147.  - (Topic 3)

Which two are advantages of static routing when compared to dynamic routing? (Choose two.)

A. Configuration complexity decreases as network size increases.

B. Security increases because only the network administrator may change the routing table.

C. Route summarization is computed automatically by the router.

D. Routing tables adapt automatically to topology changes.

E. An efficient algorithm is used to build routing tables, using automatic updates.

F. Routing updates are automatically sent to neighbors.

G. Routing traffic load is reduced when used in stub network links.

Answer: B,G


Since static routing is a manual process, it can be argued that it is more secure (and more prone to human errors) since the network administrator will need to make changes to the routing table directly. Also, in stub networks where there is only a single uplink connection, the load is reduced as stub routers just need a single static default route, instead of many routes that all have the same next hop IP address.

Q148.  - (Topic 8)

What is the first step in the NAT configuration process?

A. Define inside and outside interfaces.

B. Define public and private IP addresses.

C. Define IP address pools.

D. Define global and local interfaces.

Answer: A

Q149.  - (Topic 5)

On which options are standard access lists based?

A. destination address and wildcard mask

B. destination address and subnet mask

C. source address and subnet mask

D. source address and wildcard mask

Answer: D


Standard ACL’s only examine the source IP address/mask to determine if a match is made. Extended ACL’s examine the source and destination address, as well as port information.

Q150.  - (Topic 8)

Which DTP switch port mode allows the port to create a trunk link if the neighboring port is in trunk mode, dynamic desirable mode, or desirable auto mode?

A. trunk

B. access

C. dynamic desirable

D. dynamic auto

Answer: C