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Die JN0-664 Prüfung ist eine umfassende Prüfung, die die Fähigkeit der Kandidaten bewertet, komplexe Service Provider-Netzwerke zu entwerfen, zu implementieren und zu beheben. Die Prüfung besteht aus 65 Multiple-Choice-Fragen und den Kandidaten werden 120 Minuten Zeit gegeben, um die Prüfung abzuschließen. Juniper Networks empfiehlt, dass die Kandidaten mindestens drei bis fünf Jahre Erfahrung in der Arbeit mit Service Provider-Netzwerken haben, bevor sie diese Prüfung versuchen. Das Bestehen dieser Prüfung zeigt ein hohes Maß an Fachwissen in Service Provider Routing und Switching-Technologien und wird von Arbeitgebern und Netzwerkprofis gleichermaßen hoch geschätzt.

Der Juniper JN0-664: Service Professional Professional (JNCIP-SP) -Prüfung ist eine Zertifizierungsprüfung, die für Fachleute konzipiert ist, die ihre Fähigkeiten im Bereich der Networking von Dienstanbietern verbessern möchten. Diese Zertifizierungsprüfung wird von Juniper Networks durchgeführt, einer der führenden Anbieter von Networking -Geräten der Welt.

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Juniper Service Provider, Professional (JNCIP-SP) JN0-664 Prüfungsfragen mit Lösungen (Q39-Q44):

39. Frage
A router running IS-IS is configured with an ISO address of 49.0001.00a0.c96b.c490.00.
Which part of this address is the system ID?

A. 00a0.c96b.c490 is the system identifier.
B. c490 is the system identifier.
C. c96b.c490 is the system identifier.
D. 0001.00a0.c96b.c490 is the system identifier.

Antwort: A

Begründung:
In IS-IS (Intermediate System to Intermediate System) routing, each router is identified by a unique ISO (International Organization for Standardization) address, also known as a Network Entity Title (NET). The NET consists of three parts:
1. **Area Identifier**: Indicates the area to which the router belongs.
2. **System Identifier**: Uniquely identifies the router within the area.
3. **NSAP Selector (NSEL)**: Typically set to 00 for a router, indicating the Network Service Access Point.
The format of the ISO address is `49.XXXX.YYYY.YYYY.ZZZZ.ZZZZ.00`, where:
- `49` is the AFI (Authority and Format Identifier) indicating a private address.
- `XXXX` is the Area Identifier.
- `YYYY.YYYY.YYYY` is the System Identifier.
- `ZZZZ.ZZZZ` is the NSAP Selector.
Given the address `49.0001.00a0.c96b.c490.00`:
- **Area Identifier**: `49.0001`
- **System Identifier**: `00a0.c96b.c490`
- **NSAP Selector**: `00`
**Explanation**:
- **A. 00a0.c96b.c490 is the system identifier**:
- Correct. The System Identifier in an ISO address is a 48-bit (6-byte) field used to uniquely identify the router. In this address, `00a0.c96b.c490` is the correct 6-byte System Identifier.
- **B. 0001.00a0.c96b.c490 is the system identifier**:
- Incorrect. This includes the Area Identifier as part of the System Identifier, which is not correct.
- **C. c96b.c490 is the system identifier**:
- Incorrect. This is only part of the System Identifier. The full System Identifier must be 6 bytes long.
- **D. c490 is the system identifier**:
- Incorrect. This is an incomplete and incorrect part of the System Identifier.
**Conclusion**:
The correct part of the address that represents the System Identifier is:
**A. 00a0.c96b.c490 is the system identifier.**
**Reference**:
- Juniper Networks Documentation on IS-IS: [IS-IS Configuration](https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/isis-configuring.html)
- ISO/IEC 10589, the IS-IS routing protocol standard.

40. Frage

Click the Exhibit button.
You have an OSPF environment. You have recently added a router called R4 that is directly connected to R1 and R2. You discover that R4 is only peering with R2.
Referring to the exhibit, how would you correct the peering?

A. Adjust the Priority on R1 to be lower than the Priority on R4.
B. Change the MTU size on R1 and R2 to be 22 bytes higher than R4's MTU size.
C. Adjust the Hello Interval on R1 and R2 to match the Hello Interval on R4.
D. Adjust the Dead Interval on R4 to match the Dead Interval on R1 and R2.

Antwort: C

41. Frage
Exhibit

R4 is directly connected to both RPs (R2 and R3) R4 is currently sending all ,o,ns upstream to R3 but you want all joins to go to R2 instead Referring to the exhibit, which configuration change will solve this issue?

A. Change the group-range to be more specific on R2 than R3.
B. Change the default route in inet.2 on R4 from R3 as the next hop to R2
C. Change the local address on R2 to be higher than R3.
D. Change the bootstrap priority on R2 to be higher than R3

Antwort: D

Begründung:
Explanation
PIM Bootstrap Router (BSR) is a mechanism that allows PIM routers to discover and announce rendezvous point (RP) information for multicast groups. BSR uses two roles: candidate BSR and candidate RP. Candidate BSR is the router that collects information from all available RPs in the network and advertises it throughout the network. Candidate RP is the router that wants to become the RP and registers itself with the BSR. There can be only one active BSR in the network, which is elected based on the highest priority or highest IP address if the priority is the same. The BSR priority can be configured manually or assigned automatically. The default priority is 0 and the highest priority is 2551. In this question, R4 is directly connected to both RPs (R2 and R3) and is currently sending all joins upstream to R3 but we want all joins to go to R2 instead. To achieve this, we need to change the BSR priority on R2 to be higher than R3 so that R2 becomes the active BSR and advertises its RP information to R4.

42. Frage
Exhibit

Based on the configuration contents shown in the exhibit, which statement is true?

A. Joins for group 224.7.7.7 are accepted if the group count is less than 25
B. Joins for group 224.7.7.7 are rejected if the source address is 192.168.100.10
C. Joins for any group are accepted if the group count value is less than 25.
D. Joins for group 224.7.7.7 are always rejected, regardless of the group count.

Antwort: B

Begründung:
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."

43. Frage
Exhibit

You want Site 1 to access three VLANs that are located in Site 2 and Site 3 The customer-facing interface on the PE-1 router is configured for Ethernet-VLAN encapsulation.
What is the minimum number of L2VPN routing instances to be configured to accomplish this task?

A. 0
B. 1
C. 2
D. 3

Antwort: C

Begründung:
Explanation
To allow Site 1 to access three VLANs that are located in Site 2 and Site 3, you need to configure three L2VPN routing instances on PE-1, one for each VLAN. Each L2VPN routing instance will have a different VLAN ID and a different VNI for VXLAN encapsulation. Each L2VPN routing instance will also have a different vrf-target export value to identify which VPN routes belong to which VLAN. This way, PE-1 can forward traffic from Site 1 to Site 2 and Site 3 based on the VLAN tags and VNIs.

44. Frage
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Seit Neuem aktualisierte JN0-664 Examfragen für Juniper JN0-664 Prüfung

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Juniper Service Provider, Professional (JNCIP-SP) JN0-664 Prüfungsfragen mit Lösungen (Q39-Q44):