JN0-660 examination is a bit more as a task concentrated an individual; the individuals who seem to full the following Juniper tend to get chosen with a few weeks by individuals desiring technological services connected with BladeCenter technology. Each of the skills tested with JN0-660 examination begin with the installation and also concepts associated with BladeCenter and also head out until finally its actually troubleshooting and also preservation.

2021 Aug JN0-660 actual exam

Q81.  - (Topic 3)

You want to ensure your multivendor MPLS core network does not decrease the TTL when using ping and traceroute from IP endpoints. Which configuration parameter satisfies this requirement?

A. no-decrement-ttl, configured on all routers in the path

B. no-decrement-ttl, configured on the ingress router only

C. no-propagate-ttl, configured on all routers in the path

D. no-propagate-ttl, configured on the ingress router only

Answer: C


Q82.  - (Topic 1)

Router R5 has the overload parameter configured. Which statement is true?

A. R5 will purge its LSAs from the network until the overload condition is cleared.

B. R5 will increase its link metrics to 65535 and will stop forwarding transit traffic to OSPF destinations.

C. R5 will increase its link metrics to 65535 and will continue to forward transit traffic to OSPF destinations.

D. R5 will send an overload LSA to its neighbors to indicate it is in the overload state.

Answer: C


Q83.  - (Topic 2)

Click the Exhibit button.


The IGP is IS-IS. R2 has configured its loopback interface in Level 2 only. Referring to the exhibit, which statement is true?

A. R2 advertises its loopback address to all L1 adjacencies.

B. R1 cannot reach R2's loopback address.

C. R1 uses a default route to reach R2's loopback address.

D. R1 automatically selects R2 as the default gateway to reach R2's loopback address.

Answer: C


Q84.  - (Topic 1)

Which operational mode command displays the number of configured forwarding classes?

A. show interfaces queue ge-1/0/0

B. show interfaces terse

C. show class-of-service interface

D. show forwarding classes

Answer: A


Q85.  - (Topic 1)

Click the Exhibit button.

The output in the exhibit was captured on an interface. Which three statements are true about the configuration on the router with hostname SaoPaulo? (Choose three.)

A. Wide metrics is not in use.

B. The router has the overload bit set to "on".

C. Authentication is enabled.

D. System ID is 1921.6805.2001.

E. Level 2 routing is enabled.

Answer: A,C,E


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Q86.  - (Topic 2)

Click the Exhibit button.



You manage an MX series router (with 100 ms buffer size per port) that includes the configuration shown in the exhibit. Traffic marked with DSCP 000101 is entering the ge- 1/0/4 interface at 102 Mbps. The traffic exits the device on the ge-1/0/5 interface. There is no other traffic transiting the router. What happens to traffic exceeding 100 Mbps?

A. Traffic exceeding 100 Mbps is forwarded.

B. Traffic exceeding 100 Mbps is buffered.

C. Traffic exceeding 100 Mbps is redirected to a rate limiter.

D. Traffic exceeding 100 Mbps is dropped.

Answer: D


Q87.  - (Topic 3)

Click the Exhibit button


The 10.200/16 network is announced as an IS-IS route by R2 to its IS-IS neighbors. R3 and R4 are configured with an IS-IS export policy, which announces this route to R5 and R6.

Which statement is true?

A. When viewed on R5 the 10.200/16 route will be marked down.

B. When viewed on R5 the 10.200/16 route will be marked up.

C. The 10.200/16 route will not be visible on R5.

D. The 10.200/16 route will be marked with the overload bit.

Answer: A


Q88.  - (Topic 2)

Click the Exhibit button.


In the exhibit, R1 and R2 have a static default route configured that points toward the provider. Both routers redistribute the default route into OSPF. R2 is the preferred gateway to reach the provider. R1 is the backup gateway. All link metrics are equal. Which two steps ensure that traffic to the provider flows through R2 while the network is working properly? (Choose two.)

A. Redistribute the default route as a Type 1 external route on router R1 and a Type 2 external route on router R2.

B. Redistribute the default route as a Type 2 external route on router R1 and a Type 1 external route on router R2.

C. Modify the preference value of the default route on router R1 so that it is less preferred than OSPF external routes.

D. Modify the preference value of the default route on router R2 so that it is more preferred than OSPF external routes.

Answer: B,C


Q89.  - (Topic 2)

Click the Exhibit button.


Traffic is flowing through the policer as shown in the exhibit. The traffic has a throughput rate of 3 Mbps, and the burst size counter is at 1.5 MB. How is traffic affected?

A. Traffic has its PLP set to low.

B. Traffic has its PLP set to medium-low.

C. Traffic has its PLP set to medium-high.

D. Traffic has its PLP set to high.

Answer: C


Q90.  - (Topic 2)

Click the Exhibit button.


Referring to the exhibit, you work for ISP A and are asked to configure R1 to forward traffic for all routes across both available links, to both routers in ISP B's network. Which three configuration commands do you use? (Choose three.)

A. set protocols bgp group isp-b multihop

B. set policy-options policy-statement load-balance then load-balance per-packet

C. set routing-options forwarding-table import load-balance

D. set protocols bgp group isp-b multipath

E. set routing-options forwarding-table export load-balance

Answer: B,D,E