New Launch JN0-664 Questions (PDF) [2025] - Juniper JN0-664 Exam Dumps
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The JN0-664 exam is a comprehensive test that covers a wide range of topics related to service provider routing and switching. JN0-664 exam covers key concepts such as the Border Gateway Protocol (BGP), Intermediate System-to-Intermediate System (IS-IS), Multiprotocol Label Switching (MPLS), and Virtual Private LAN Service (VPLS). In addition, the exam also tests the candidate's knowledge of Junos OS, network automation, and network management.
Juniper JN0-664 Exam is aimed at professionals who are responsible for designing, implementing, and supporting service provider networks. JN0-664 exam is designed to test the candidate's knowledge and skills in the areas of routing, switching, and service provider technologies. The JN0-664 exam is a rigorous test that requires candidates to demonstrate their knowledge of networking technologies and their ability to apply that knowledge in real-world scenarios.
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Juniper Service Provider, Professional (JNCIP-SP) Sample Questions (Q88-Q93):
NEW QUESTION # 88
Exhibit
Which two statements about the output shown in the exhibit are correct? (Choose two.)
Answer: A,C
Explanation:
The output is from the show l2vpn connections command on a Juniper router. This command is used to verify the status of Layer 2 VPN (L2VPN) pseudowires between Provider Edge (PE) routers.
Breakdown of Key Information:
Instance: vpn-A
This is the L2VPN instance being monitored.
Connection Status (St)
The connection status is "Up", meaning the pseudowire is operational.
Local Site: CE1-2 (2)
The PE router is attached to a single local site (CE1-2).
Uptime & Connection Flaps
The output shows the last time the connection was up:
Time last up: Apr 11 14:35:27 2020
The "# Up trans" value is 1, meaning this connection has been established once and has not flapped since it was initiated.
VLAN ID Mismatch Check
The legend includes "VM - VLAN ID mismatch", but this status is not present in the connection output.
This means there is NO VLAN ID mismatch.
Flow Labels
The Flow Label Transmit is No, and the Flow Label Receive is No.
This means the PE router does NOT have the capability to pop flow labels.
NEW QUESTION # 89
Which two statements are correct about the class-of-service configuration shown in the exhibit?
(Choose two.)
Answer: A,D
NEW QUESTION # 90
Exhibit
You are examining an L3VPN route that includes the information shown in the exhibit Which statement is correct in this scenario?
Answer: D
Explanation:
Type 1: When Type value is 1, the Administrator field is 4-bytes and Assigned Number field is 2-bytes. The Administrator field should be set to the IP address (public IP addresses should be used). The Assigned Number field contains a number from a numbering space that is administered by the enterprise to which the IP address has been assigned by the appropriate authority.
NEW QUESTION # 91
Referring to the exhibit, you must provide VRF Internet access over a single connection for VPN- A Site 1, which connects to PE-1.
Which two statements are correct in this scenario? (Choose two.)
Answer: B,D
NEW QUESTION # 92
Exhibit
Based on the configuration contents shown in the exhibit, which statement is true?
Answer: D
Explanation:
This configuration applies to IGMP (Internet Group Management Protocol) and is designed to control multicast group memberships on the interface ge-0/0/0.0.
Breaking Down the Configuration
1## Policy-Statement: block-igmp
policy-statement block-igmp {
term 1 {
from {
route-filter 224.7.7.7/32 exact;
source-address-filter 192.168.100.10/32 exact;
}
then reject;
}
}
* This policy blocks IGMP joins for group 224.7.7.7 only if the source IP is 192.168.100.10.
* If both conditions match, the request is rejected.
2## IGMP Configuration on Interface ge-0/0/0.0
[edit protocols igmp]
user@router# show
interface ge-0/0/0.0 {
group-policy block-igmp;
group-limit 25;
}
* group-policy block-igmp applies the policy statement block-igmp, meaning IGMP join requests are evaluated based on this policy.
* group-limit 25 means the interface allows up to 25 multicast groups.
Evaluating the Answer Choices
# A. Joins for group 224.7.7.7 are rejected if the source address is 192.168.100.10.
* Correct, because:
* The policy specifically matches group 224.7.7.7 and source IP 192.168.100.10.
* If both conditions are met, the join is rejected.
# B. Joins for any group are accepted if the group count value is less than 25.
* Incorrect, because:
* The group-limit (25) applies to the total number of IGMP groups but does not override explicit policy rules.
* Even if there are fewer than 25 groups, a join request can still be rejected by the policy statement.
# C. Joins for group 224.7.7.7 are always rejected, regardless of the group count.
* Incorrect, because:
* The policy only blocks joins from the specific source 192.168.100.10.
* Joins from other sources to 224.7.7.7 are allowed.
# D. Joins for group 224.7.7.7 are accepted if the group count is less than 25.
* Incorrect, because:
* Joins for 224.7.7.7 from source 192.168.100.10 will always be rejected, even if the group count is below 25.
* The group-limit does not override the rejection policy.
"Joins for group 224.7.7.7 are rejected if the source address is 192.168.100.10."
# Official Juniper Documentation Reference:
# Junos IGMP Policy Configuration Guide
"A group-policy statement allows filtering IGMP joins based on multicast group address and source IP."
NEW QUESTION # 93
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