JN0-643 Online Practice Questions and Answers

-- Exhibit

-- Exhibit -

Click the Exhibit button.

ISP-A is advertising the 200.0.3.0/24 route to R1. R1 is advertising this BGP route to R2 but the route is hidden on R2.

Referring to the exhibit, which statement is correct about the 200.0.3.0/24 route?

A. The route is unusable because the next hop is not reachable from R2.

B. The route is unusable because it has not been verified.

C. The route is hidden because R1 is changing the next hop to 192.168.16.1.

D. The route is hidden because R2 has a more preferred route.

You want to provide reachability to your data center by advertising its subnet throughout your upstream peer AS. However, you do not want this prefix advertised any further. Which BGP community value would be used to meet this requirement?

A. no-advertise

B. no-export

C. no-export-subconfed

D. 65512 - 65535

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.

-- Exhibit -user@switch> show poe controller Controller Maximum Power Guard Management Status Lldp index power consumption band Priority 0 130.00W 121.00W 0W Class AT_MODE Disabled -- Exhibit -

Click the Exhibit button.

A new user's Class 3 IP phone is connected to port ge-0/0/7 on an EX Series switch; however, it is not working.

Referring to the exhibit, what is the cause?

A. The model of the EX Series switch being used supports PoE only on interfaces ge-0/0/0 through ge- 0/0/6.

B. The PoE port is set to class 0.

C. The port has been shut down because the phone's power requirements exceed the PoE power budget for the switch.

D. The guard-band is insufficient.

You are implementing MSTP in your network.

Which three values must match on all switches within the MST region? (Choose three)

A. Context identifier

B. Region name

C. VLANs

D. Revision

E. Configuration manifest

How does an administrator block IGMP reports for the 239.0.0.0/8 group range?

A. Create a routing policy and apply it to IGMP using the group-policy feature.

B. Create a routing policy and apply it to IGMP using the report-policy feature.

C. Create a routing policy and apply it to IGMP as export.

D. Create a routing policy and apply it to IGMP as import.

-- Exhibit -

Interface State Area DR ID BDR ID Nbrs em2.0 DR 0.0.0.2 10.94.164.116 10.1.1.1 1 TypE. LAN, Address: 11.1.1.2, Mask: 255.255.255.252, MTU: 1500, Cost: 1 DR addr: 11.1.1.2, BDR addr: 11.1.1.1, Priority: 128 Adj count: 1 Hello: 10, DeaD. 40, ReXmit: 5, Stub Auth typE. None Protection typE. None Topology default (ID 0) -> Cost: 1 -- Exhibit -

Click the Exhibit button.

Referring to the exhibit, which statement is true?

A. The OSPF cost of the interface is 128.

B. The authentication type of the area is MD5.

C. This interface is part of a stub area.

D. This router is the BDR.

-- Exhibit -

user@switch# run show spanning-tree statistics interface ge-0/0/0

STP interface statistics for VLAN 10 Interface BPDUs sent BPDUs received Next BPDU transmission ge-0/0/0.0 170 3 0

STP interface statistics for VLAN 20 Interface BPDUs sent BPDUs received Next BPDU transmission ge-0/0/0.0 171 3 0 -- Exhibit -

Click the Exhibit button.

Based on the exhibit, which spanning-tree protocol is running on ge-0/0/0?

A. VSTP

B. MSTP

C. RSTP

D. PVST

Referring to the exhibit, all host A has authenticated using 802.1X B. Which supplicant mode IS USED on the switch?

A. MAC RADIUS

B. Multiple

C. Single

D. Single-secure

Which protocol is a multicast protocol?

A. OSPF

B. BGP

C. PIM

D. IS-IS

Referring to the exhibit, what must you add to the configuration to allow a receiver connected two interface ge 0/0/6 to subscribe to group 232 0 0 1 from source 172.16.7.1?

A. Add sparse mode to PIM interface ge 0/0/6

B. Add version 2 the state RP configuration

C. Add version 3 to IGMP INTERFACE ge 0/0/6

D. Add version two to IGMP interface ge 0/0/6

When configuring class of service. What would you use to allocate bandwidth to a forwarding class?

A. buffer depth

B. transmit rate

C. bandwidth

D. speed

When traffic is classified on an EX Series switch, which statement is true?

A. With the default classifier rules applied, voice and video traffic receive their own queues to avoid congestion

B. With the default classifier, rules applied all traffic that enters an access port is classified as best effort

C. With the default classifier rules applied, voice traffic is classified as expedited forwarding on trunk ports

D. If no classifier rules are applied, class of service bits are automatically rewritten on egress to match the class of service assigned on ingress

You are attempting to configure BGP peering to a new service provider. The BGP peering state is stuck in the active state. What are two reasons for this happening? (Choose two)

A. The local autonomous system number is not configure.

B. The origin ID is not configure.

C. The peer IP address is incorrect.

D. The peer autonomous number is incorrect.

Which two statements about VSTP on EX series switches are connect? (Choose two)

A. All VLANS beyond the first 64 will not be supported by VSTP

B. VSTP automatically assigns each VLAN to one spanning tree instances

C. VSTP must be used to intemperate with MVRP

D. VSTP must be used to intemperate with PVST+