JN0-643 Online Practice Questions and Answers

Which connection method do OSPF routers use to communicate with each other?

A. IP protocol number 89

B. TCP port 179

C. UDP port 179

D. IP protocol number 6

-- Exhibit

-- Exhibit -Click the Exhibit button.

Referring to the exhibit, you are asked to prevent the 184.16.1.0/24 route from entering the backbone.

Which configuration statements would accomplish the task?

A. On router R1, issue the set protocols ospf area 3 nssa area-range 184.16.1.0/24 restrict command.

B. On router R3, issue the set protocols ospf area 0 area-range 184.16.1.0/24 restrict command.

C. On router R3, issue the set protocols ospf area 3 area-range 184.16.1.0/24 restrict command.

D. On router R3, issue the set protocols ospf area 3 nssa area-range 184.16.1.0/24 restrict command.

-- Exhibit -[edit]

user@switch# commit

error: Trunk interface can not be member of both dot1q-tunneling enabled vlan , and a non dot1q-tunneled vlan when dot1q-tunneling ethernet-type is not <0x8100> error: configuration check-out failed

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Click the Exhibit button.

When you try to commit your 802.1Q tunneling configuration, you receive the error shown in the exhibit.

Which configuration statement will allow the configuration to commit?

A. set vlans cust-1 interface ge-0/0/10 egress

B. set interfaces ge-0/0/10 ether-options mdi-mode auto

C. set vlans v11 dot1q-tunneling customer-vlans native

D. set ethernet-switching-options dot1q-tunneling ether-type 0x8100

You are asked to implement MSTP on all devices in your Layer 2 network.

Which three parameters must match on all devices within the same region? (Choose three.)

A. region name

B. hello timer

C. maximum age

D. revision level

E. VLAN mapping table

You are asked to set up 802.1X port authentication for all access ports on your EX Series switch. You have a device that does not support 802.1X supplicants and you must ensure this device is authenticated. You must also ensure that no unnecessary delay occurs when authenticating this device.

Which statement is correct?

A. You should enable MAC RADIUS on the interface and use 802.1X multiple mode.

B. You should enable MAC RADIUS on the interface and statically add the MAC address to the 802.1x configuration.

C. You should enable MAC RADIUS on the interface and include the restrict parameter.

D. You should enable MAC RADIUS on the interface and include the disable parameter.

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-- Exhibit -Click the Exhibit button.

Which statement about the non-ABR router in Area 2 in the exhibit is true?

A. The router has connectivity to all areas.

B. The router has connectivity to Area 2 only.

C. The router has connectivity to Area 2 and Area 0.

D. The router has connectivity to Area 2 and Area 8.

-- Exhibit

-- Exhibit -Click the Exhibit button.

In the topology shown in the exhibit, which two BGP attributes can AS1 manipulate to influence the path that AS4 takes to reach prefixes originated by AS1? (Choose two.)

A. Local Preference

B. AS Path

C. Origin

D. MED

-- Exhibit -

user@router> show configuration routing-options

rib-groups {

foo {

import-rib [ inet.8 inet.2 inet.0 ];

}

}

user@router> show configuration protocols pim

rib-group inet foo;

interface all;

-- Exhibit -

Click the Exhibit button.

Based on the configuration in the exhibit, which routing table is used for IPv4 multicast RPF checks?

A. inet.0

B. inet.2

C. foo.inet.0

D. inet.8

The network administrator wants the ports on an EX series switch to allow both tagged and untagged frames to be forwarded. Tagged frames should be associated with their tagged VLAN, while untagged frames should be associated with a preconfigured VLAN. In this scenario, which statement is true?

A. The interface port mode should be configured as mixed mode to allow both trunk and access port modes, untagged frames will belong to the default VLAN configured on that post.

B. An interface can be configured as an access port or a trunk port, but it cannot accept both tagged and untagged frames.

C. The interface port mode should be configured as an access port with a VLAN ID, frames tflSrenter the port with a VLAN tag already assigned will override the access port vlan id.

D. The interface port mode should be configured as a trunk port, untagged fra^^swill belong to the native Vlan id configured on that port.

You are asked to configure OSPF for IPV4 and IPV6 route advertisement.Which two configuration accomplish the task? (Choose two)

A. [edit] user@switchl#show protocols ospf3{ export redistribute-ipv4; area 0.0.0.0 { interface al; } } [edit] user@switchl#show policy-options policy-statement redistribute-ipv4{ from family inet; to family inet6; then accept; }

B. [edit] protocols { ospf{ area 0.0.0.0 { interface all; } } ospf3 { area 0.0.0.0{

C. [edit] user@switch # show protocols Nospf { export redistribute-ipv6; area 0.0.0.0{ interface all; } } [edit] user@switch# show policy-options policy-statement redistribute-ipv6{ from family inet6; to family inet; then accept }

D. [edit] user@switch# show protocols ospf3 { relam ipv4-unicast { area 0.0.0.0 { interface all: } } area 0.0.0.0 interface all;