JNCIS-SP Exam Questions and
Answers20
AB - ANSWERS-A customer has two VLANs to extend between Site-1 and Site-2. The customer
does not want to route the VLANs or renumber the VLANs.
Referring to the exhibit, which two VLAN IDs are egressing the MX Series device towards the
optical transport network after translation? (Choose two.)
A. 500
B. 501
C. 201
D. 200
C - ANSWERS-Referring to the exhibit, what is the correct OSPF interface state for the ge-0/0/1
interface?
A. BDR
B. Down
C. DR
D. DRother
D - ANSWERS-You have configured OSPF between two routers. The OSPF adjacency will not form
Referring to the exhibit, what is the problem?
A. Router is not receiving hellos on the configured interface.
B. The OSPF version does not match on the configured interfaces.
C. The router is not sending hellos on the configured interface.
D. The area does not match on the configured interfaces.
,C - ANSWERS-Referring to the exhibit, the GRE tunnel between R-1 and R2 allows connectivity
between User-1 and Server-1. User-1 can communicate with Server-1 with packets that are up
to 1448 bytes in size. However, if the packet size is larger than 1448, User-1 cannot
communicate with Server-1.
In this scenario, how do you solve the communication problem?
A. Change the physical MTU on the ge-0/0/3 interfaces on R-1 and R-2 to 1448 bytes.
B. Change the physical MTU on the gr-0/0/0 interfaces on R-1 and R-2 to 1448 bytes.
C. Apply the allow-fragmentation statement to the GRE tunnel configuration.
D. Apply the path-mtu-discovery statement to the GRE tunnel configuration.
C - ANSWERS-Which statement is true when using VLANs in a bridge domain on an MX Series
device?
A. The VLAN tags of the received packet are always translated.
B. Only outer VLAN tags can be normalized.
C. The VLAN tag of the received packet must match the VLAN tags associated with one of the
logical interfaces
D. Outer and inner VLAN tags always checked at egress.
CD - ANSWERS-Which two statements correctly describe the BGP community attribute? (Choose
two.)
A. Only one community can be associated with a route.
B. The community attribute is an optional nontransitive attribute.
C. Multiple communities can be associated with a route.
D. The community attributes is an optional transitive attribute.
, AB - ANSWERS-Because of recent network failures, additional circuits have been purchased. In
addition, Fast reroute has been configured on critical MPLS LSPs.
When the next failure occurs, which two time intervals will affect fast reroute? (Choose two.)
A. The amount of time required to reroute the traffic onto the detour
B. The amount of time to detect a link or node failure
C. The amount of time required to recalculate the best detour
D. The amount of time it takes to ping the gateway on the detour link
C - ANSWERS-What is required on the egress and ingress devices to transport IPv6 traffic across
an IPv4 network?
A. An IP-IP interface
B. A TE tunnel interface
C. A GRE tunnel interface
D. A 6to 4 tunnel interface
CD - ANSWERS-An IS-IS TLV includes which two attributes? (Choose two.)
A. Topology
B. Vector
C. Length
D. Value
D - ANSWERS-Which statement is true about routing instances on Junos devices?
A. Routing information cannot be shared between routing instances.
B. Each routing protocol runs in a separate routing instance.
C. Junos devices support only one routing instance.
Answers20
AB - ANSWERS-A customer has two VLANs to extend between Site-1 and Site-2. The customer
does not want to route the VLANs or renumber the VLANs.
Referring to the exhibit, which two VLAN IDs are egressing the MX Series device towards the
optical transport network after translation? (Choose two.)
A. 500
B. 501
C. 201
D. 200
C - ANSWERS-Referring to the exhibit, what is the correct OSPF interface state for the ge-0/0/1
interface?
A. BDR
B. Down
C. DR
D. DRother
D - ANSWERS-You have configured OSPF between two routers. The OSPF adjacency will not form
Referring to the exhibit, what is the problem?
A. Router is not receiving hellos on the configured interface.
B. The OSPF version does not match on the configured interfaces.
C. The router is not sending hellos on the configured interface.
D. The area does not match on the configured interfaces.
,C - ANSWERS-Referring to the exhibit, the GRE tunnel between R-1 and R2 allows connectivity
between User-1 and Server-1. User-1 can communicate with Server-1 with packets that are up
to 1448 bytes in size. However, if the packet size is larger than 1448, User-1 cannot
communicate with Server-1.
In this scenario, how do you solve the communication problem?
A. Change the physical MTU on the ge-0/0/3 interfaces on R-1 and R-2 to 1448 bytes.
B. Change the physical MTU on the gr-0/0/0 interfaces on R-1 and R-2 to 1448 bytes.
C. Apply the allow-fragmentation statement to the GRE tunnel configuration.
D. Apply the path-mtu-discovery statement to the GRE tunnel configuration.
C - ANSWERS-Which statement is true when using VLANs in a bridge domain on an MX Series
device?
A. The VLAN tags of the received packet are always translated.
B. Only outer VLAN tags can be normalized.
C. The VLAN tag of the received packet must match the VLAN tags associated with one of the
logical interfaces
D. Outer and inner VLAN tags always checked at egress.
CD - ANSWERS-Which two statements correctly describe the BGP community attribute? (Choose
two.)
A. Only one community can be associated with a route.
B. The community attribute is an optional nontransitive attribute.
C. Multiple communities can be associated with a route.
D. The community attributes is an optional transitive attribute.
, AB - ANSWERS-Because of recent network failures, additional circuits have been purchased. In
addition, Fast reroute has been configured on critical MPLS LSPs.
When the next failure occurs, which two time intervals will affect fast reroute? (Choose two.)
A. The amount of time required to reroute the traffic onto the detour
B. The amount of time to detect a link or node failure
C. The amount of time required to recalculate the best detour
D. The amount of time it takes to ping the gateway on the detour link
C - ANSWERS-What is required on the egress and ingress devices to transport IPv6 traffic across
an IPv4 network?
A. An IP-IP interface
B. A TE tunnel interface
C. A GRE tunnel interface
D. A 6to 4 tunnel interface
CD - ANSWERS-An IS-IS TLV includes which two attributes? (Choose two.)
A. Topology
B. Vector
C. Length
D. Value
D - ANSWERS-Which statement is true about routing instances on Junos devices?
A. Routing information cannot be shared between routing instances.
B. Each routing protocol runs in a separate routing instance.
C. Junos devices support only one routing instance.
