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2021 Sep JN0-643 answers
Q121. -- Exhibit --
user@SwitchA> show dot1x interface detail ge-0/0/2.0
ge-0/0/2.0
RolE. Authenticator
Administrative statE. Auto
Supplicant modE. Multiple
Number of retries: 3
Quiet perioD. 60 seconds
Transmit perioD. 30 seconds
Mac Radius: Enabled
Mac Radius Restrict: Enabled
Reauthentication: Enabled
Configured Reauthentication interval: 3600 seconds
Supplicant timeout: 30 seconds
Server timeout: 30 seconds
Maximum EAPOL requests: 2
Guest VLAN member: <not configured>
Number of connected supplicants: 2
user@SwitchA>
-- Exhibit --
Click the Exhibit button.
Host 1, Host 2, and Host 3 are connected to Switch A on interface ge-0/0/2. Host 1 and Host 2 do not support 802.1X. They can authenticate and connect to the Internet. Host 3 was added and it supports 802.1X; however, it is unable to authenticate.
Referring to the exhibit, how do you allow Host 3 to authenticate to the network but maintain secure access?
A. Enable fallback authentication for 802.1X.
B. Disable MAC RADIUS Restrict option on ge-0/0/2.
C. Disable MAC RADIUS option on ge-0/0/2.
D. Enable Administrative mode for 802.1X.
Answer: B
Q122. When enabling MVRP for dynamic VLAN registration, which three timers would be configured on an interface? (Choose three.)
A. hello-interval
B. join-timer
C. leave-timer
D. max-age
E. leaveall-timer
Answer: B,C,E
Q123. You are configuring BGP peering with a neighboring AS. Multiple physical links exist between your edge router and the neighboring edge router, and you want a configuration that supports the highest degree of redundancy.
How can you implement this scenario?
A. Configure multiple peerings between the routers’ physical interfaces.
B. Use the multipath feature.
C. Configure multiple peerings between the routers’ logical interfaces.
D. Use the multihop feature.
Answer: D
Q124. Click the Exhibit button.
A contractor needs to connect a laptop to your company network, but your company has no wireless access and each office has only a single network port for an employee laptop. You have an IP phone with a data port available and you have access to the switch connected to it. You can also add the contractor's MAC address to the RADIUS server database.
Referring to the exhibit, which three commands will allow access? (Choose three.)
A. set protocols dot1x authenticator authentication-profile-name radius_profile interface ge-0/0/16.0 mac-radius
B. set interfaces ge-0/0/16.0 family ethernet-switching port-mode trunk
C. set interfaces ge-0/0/16.0 family ethernet-switching vlan members contractor
D. set protocols dot1x authenticator authentication-profile-name radius_profile interface ge-0/0/16.0 supplicant multiple
E. set interfaces ge-0/0/16.0 family ethernet-switching vlan members all
Answer: A,C,D
Q125. -- Exhibit --
Controller Maximum Power Guard Management Status Lldp
index power consumption band Priority
0 792.00W 603.50W 0W Class AT_MODE Disabled
-- Exhibit --
Click the Exhibit button.
Referring to the exhibit, which statement is true?
A. The switch supports PoE+.
B. The switch is protected against spikes in power demand.
C. The switch supports a maximum power draw per PoE port of 15.4 watts.
D. The switch can manually assign priorities per interface.
Answer: A
Rebirth JN0-643 braindumps:
Q126. -- Exhibit --[edit policy-options]
user@router# show
policy-statement LB {
term 1 {
then {
load-balance per-packet;
}
}
}
-- Exhibit --
Click the Exhibit button.
Two routers are joined by redundant BGP connections. You want to load-balance traffic across these links, and have configured the policy shown in the exhibit on each device.
Which configuration, applied on each device, correctly applies the policy to accomplish this task?
A. [edit protocols bgp group LB]
uesr@router# show
type external;
import LB;
peer-as <peer_as>;
neighbor <neighbor>;
B. [edit protocols bgp group LB]
uesr@router# show
type external; export LB; peer-as <peer_AS>; neighbor <neighbor>;
C. [edit]
user@router# show routing-options
aggregate {
route 0.0.0.0/0 policy LB;
}
D. [edit]
user@router# show routing-options
forwarding-table {
export LB;
}
Answer: D
Q127. Which three attributes must a BGP update contain? (Choose three.)
A. next-hop
B. MED
C. origin
D. AS-path
E. local preference
Answer: A,C,D
Q128. -- Exhibit –
-- Exhibit --
Click the Exhibit button.
Traffic flows through your network, as shown in the exhibit. You have configured a rewrite rule on R1 to mark HTTP traffic with a specific DSCP value.
What must you do to ensure that the HTTP traffic preserves its DSCP value as it leaves your CoS domain?
A. Use behavior aggregate classifiers mapping the HTTP traffic to the specific DSCP value on R1 and R2.
B. Use rewrite rules mapping the HTTP traffic to the specific DSCP value on R2 and R3.
C. Use a rewrite rule mapping the HTTP traffic to the specific DSCP value on R3.
D. Use the default settings already in place on the device.
Answer: D
Q129. Click the Exhibit button.
Site A is sending voice traffic marked with DSCP code EF. SRX A has the default CoS classifier.
Into which forwarding class is SRX A classifying traffic?
A. best-effort
B. expedited-forwarding
C. network-control
D. assured-forwarding
Answer: A
Q130. Which multicast group is used for all PIM routers?
A. 224.0.0.22
B. 224.0.0.13
C. 224.0.0.1
D. 224.0.0.2
Answer: B