Connecting Networks Version 6 – CN Chapter 1 Exam

Connecting Networks (Version 6.00) – CN Chapter 1 Exam

QUESTION 1

The network administrator wants to configure a switch to pass VLAN update information to other switches in the domain but not update its own local VLAN database. Which two steps should the administrator perform to achieve this? (Choose two.)Reset the VTP counters.

Configure the switch with the same VTP domain name as other switches in the network.*

Configure the VTP mode of the switch to transparent.*

Configure VTP version 1 on the switch.

Verify that the switch has a higher configuration revision number.

Besides the VTP domain name and mode needing to be configured, the switch must connect to other switches in the same VTP domain through a trunk in order to transmit/receive VTP information.

 

QUESTION 2

Which statement describes the Autonomous System number that is used in EIGRP?It identifies the priority of the networks to be included in update packets.

It defines the reliability of the EIGRP routing protocol.

It is associated with the global Autonomous System number that is assigned by IANA.

It specifies the EIGRP routing process on a router.*

The AS number identifies the EIGRP routing process, and multiple AS numbers can be configured on a router to facilitate multiple EIGRP processes running on a network. The AS number is not associated with the global Autonomous System number that is assigned by IANA, because EIGRP is an interior gateway protocol. The reliability of EIGRP and the priority of networks that are included in updates are not linked to AS numbers.

 

QUESTION 3

Refer to the exhibit. Which switch will be the root bridge after the election process is complete?

S1

S2*

S3

S4

The root bridge is determined by the lowest bridge ID, which consists of the priority value and the MAC address. Because the priority values of all of the switches are identical, the MAC address is used to determine the root bridge. Because S2 has the lowest MAC address, S2 becomes the root bridge.

 

QUESTION 4

Refer to the exhibit. A network administrator is configuring PVST+ for the three switches. What will be a result of entering these commands?

S1 will set the priority value for VLAN 20 to 24596.

S2 will set the priority value for VLAN 10 to 24576.

S1 will set the priority value for VLAN 10 to 0.

S3 will set the priority value for VLAN 30 to 8192.*

In PVST+ configuration, the spanning-tree vlan vlan-id root primary global configuration mode command will set the priority for the switch to the predefined value of 24,576 or to the highest multiple of 4,096, less than the lowest bridge priority detected on the network. The spanning-tree vlan vlan-id root secondary global configuration mode command will set the priority for the switch to the predefined value of 28,672. Because S1 is configured with the priority value of 12,288 for VLAN 30, S3 has to be configured with the priority value of 8,192 (highest multiple of 4,096 but lower than 12,288) to become the root bridge for VLAN 30.

 

QUESTION 5

Fill in the blank.
In RSTP, BPDU frames are sent every _____ seconds by default.
Correct Answer: 2*

Refer to the exhibit. Why did R1 and R2 not establish an adjacency?

The IPv4 address of Fa0/0 interface of R1 has a wrong IP address.

The AS number does not match on R1 and R2.*

The automatic summarization is enabled on R1 and R2.

There is no network command for the network 192.168.1.0/24 on R1.

To establish adjacency, both routers must be configured with the same AS number. The network 192.168.0.0 .0.0.255.255 command issued on R1 includes all networks from 192.168.0.0 to 192.168.255.255. Therefore, the network 192.168.1.0/24 is also included.

 

QUESTION 7

What address type will OSPFv3 use to form adjacencies to neighboring routers?the all OSPF router multicast

the link-local address of the interface*

the all-link router multicast

the global unicast of the interface

OSPF neighbor adjacencies are formed using the link-local address of the interfaces that are connecting to neighboring routers.

 

QUESTION 8

Which OSPF LSA type is only used in multiaccess and NBMA networks?

type 1

type 2*

type 3

type 4

OSPF type 2 LSAs are only flooded on multiaccess and NBMA networks where a designated router is elected. The type 2 LSA is created by the designated router and advertises the router ID of the designated router to other OSPF routers.

 

QUESTION 9

Which dynamic routing protocol uses hop count to calculate metric value?EIGRP

IS-IS

OSPF

RIP*

Different routing protocols uses different metrics to calculate the best path through the routed network. RIP uses hop count, EIGRP uses bandwidth and delay, and OSPF uses cost.

 

QUESTION 10

Fill in the blank.?
By default, EIGRP is able to use up to ______ percent of the bandwidth for EIGRP messages on an EIGRP-enabled interface.
Correct Answer: 50*

By default, EIGRP is able to use up to 50 percent of the bandwidth on an interface for EIGRP messages.

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