[2017-Oct.-New]Free JN0-643 PDF Exam Dumps Offered by Braindump2go[31-40]
JN0-643 Exam Dumps, JN0-643 Exam Questions, JN0-643 PDF Dumps, JN0-643 VCE Dumps, Juniper Exam Dumps
2017 Oct. New JN0-643 Exam Dumps with PDF and VCE Free Updated Today! Following are some JN0-643 Questions:
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QUESTION 31
You are asked to implement a filter-based VLAN assignment. You have created the firewall filter and must apply this filter to the incoming interface.
Where must this filter be applied?
A. to the access interface configuration
B. to the interface under the primary VLAN assignment
C. to the interface under the secondary VLAN assignment
D. to the trunk interface configuration
Answer: A
QUESTION 32
Referring to the exhibit, you are attempting to configure L2PT for VLAN v200 but the configuration will not commit.
{master:0}[edit]
user@switch# show vlans
v200 {
vlan-id 200;
interface {
ge-0/0/7.0;
ge-0/0/8.0;
}
dot1q-tunneling {
customer-vlans [ 11 12 ];
layer2-protocol-tunneling {
all {
drop-threshold 800;
shutdown-threshold 700;
}
}
}
}
Which three configuration statements would resolve the problem? (Choose three.)
A. set vlans v200 dot1q-tunneling layer2-protocol-tunneling all drop-threshold 600
B. set vlans v200 dot1q-tunneling layer2-protocol-tunneling all shutdown-threshold 600
C. set vlans v200 dot1q-tunneling layer2-protocol-tunneling all shutdown-threshold 900
D. set vlans v200 dot1q-tunneling layer2-protocol-tunneling all drop-threshold 700
E. set vlans v200 dot1q-tunneling layer2-protocol-tunneling all drop-threshold 900
Answer: ACD
QUESTION 33
Referring to the exhibit, you are asked to ensure that CE1 can communicate with CE2 using VLAN 150.
Which configuration meets this requirement on S1?
A. user@S1# show
customer-a {
vlan-id 200;
dot1q-tunneling {
customer-vlans 150;
}
}
{master:0}[edit vlans]
B. user@S1# show
customer-a {
vlan-id 150;
interface {
ge-0/0/0.0;
ge-0/0/1.0;
}
dot1q-tunneling {
customer-vlans 200;
}
}
{master:0}[edit vlans]
C. user@S1# show
customer-a {
vlan-id 200;
interface {
ge-0/0/0.0;
ge-0/0/1.0;
}
dot1q-tunneling {
customer-vlans 150;
}
}
{master:0}[edit vlans]
D. user@S1# show
customer-a {
vlan-id 150;
interface {
ge-0/0/0.0;
}
}
v200 {
vlan-id 200;
interface {
ge-0/0/1.0;
}
}
Answer: C
QUESTION 34
You are asked to separate the human resources group from the finance group on the company network even though they share the same VLAN. You consider using PVLANs, and you delegate the task to a junior engineer who submits the configuration shown in the exhibit to accomplish this task. After review, you realize that the PVLAN implementation will not work correctly.
Referring to the exhibit, which three commands must be included to resolve the problem? (Choose three.)
A. set vlans pvlan no-local-switching
B. set vlans hr-group no-local-switching
C. set vlans finance-group no-local-switching
D. set vlans hr-group primary-vlan pvlan
E. set vlans finance-group primary-vlan pvlan
Answer: ADE
QUESTION 35
You have implemented a firewall-based VLAN filter to map traffic from subnet 192.168.40.0/24 to a VLAN named vlan_40. However, you have not been successful in getting the traffic mapped correctly. In addition, all traffic must be passed to the Layer 2 network.
Referring to the exhibit, which three commands are required to accomplish this behavior? (Choose three.)
A. set interfaces ge-0/0/19.0 family ethernet-switching filter output assign_vlan
B. set interfaces ge-0/0/19.0 family ethernet-switching filter input assign_vlan
C. set vlans vlan_40 interface ge-0/0/19.0 mapping policy
D. set vlans vlan_30 interface ge-0/0/19.0 mapping policy
E. set interfaces ge-0/0/20 unit 0 family ethernet-switching port-mode trunk vlan members all
Answer: BCE
QUESTION 36
When you try to commit your 802.1Q tunneling configuration, you receive the error shown in the exhibit.
[edit]
user@switch# commit
error: Trunk interface <ge-0/0/10.0> can not be member of both dot1q-tunneling enabled vlan <cust-1>, and a non dot1q-tunneled vlan <v11> when dot1q-tunneling ethernet-type is not <0x8100>
error: configuration check-out failed
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
Answer: D
QUESTION 37
What are two reasons for the commit error shown in the exhibit? (Choose two.)
[edit protocols vstp]
‘vlan all’
Cannot configure VSTP on all VLANs when more than 253 VLANs are configured. Configure vstp vlan-group along with STP or RSTP to cover all VLANs
[edit protocols]
‘vstp’
Failed to configure vstp on all vlans
error: configuration check-out failed
A. The set protocols vstp vlan all configuration is not supported.
B. There are more than 253 VLANs configured on the switch.
C. MSTP is not configured with VSTP.
D. STP or RSTP is not configured along with VSTP on the switch.
Answer: BD
QUESTION 38
Referring to the exhibit, which two statements are true regarding the MSTP port role and port state of ge-0/0/0 and ge-0/0/1 on SW1?
A. Port ge-0/0/0 is a root port and ge-0/0/1 is an alternate port.
B. Both ports are designated ports.
C. Both ports are in a forwarding state.
D. Port ge-0/0/0 is a root port and ge-0/0/1 is in a forwarding state.
Answer: BC
QUESTION 39
Which two statements are correct about MSTP? (Choose two.)
A. It allows you to preprovision VLAN IDs to spanning tree instances.
B. It provides a more scalable solution than VSTP.
C. It is not supported when using MVRP.
D. It allows you to use VLAN groups to simplify configuration tasks when groups of VLANs use the same parameters.
Answer: AB
QUESTION 40
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
Answer: ADE
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