363 66-130

66 Which two Layer 2 protocols are supported on MX Series devices? (Choose two.). (A). BGP. (B). RIP. (C). RSTP. (D). MSTP.

67 Referring to the exhibit, which two statements are true? (Choose two.). (A). The OSPF neighbor will be declared down if BFD hello packets are not received for 1.5 seconds. (B). The OSPF neighbor will be declared down if BFD hello packets are not received for 5 seconds. (C). The OSPF neighbor will be declared down if 500 BFD hello packets are missed. (D). The OSPF neighbor will be declared down if three BFD hello packets are missed.

68 Which three statements are true about GRES? (Choose three.). (A). Kernel information is preserved. (B). Interface information is preserved. (C). GRES requires only one RE. (D). GRES requires redundant REs. (E). Control plane information is preserved.

69 Referring to the exhibit, which statement is correct?. (A). Routes from 10.1.1.1 are less preferred than the default local preference. (B). Routes from 10.2.2.2 are less preferred than routes from 10.1.1.1. (C). Routes from 10.3.3.3 are less preferred than the default local preference. (D). Routes from 10.1.1.1 are less preferred than routes from 10.2.2.2.

70 The IPv6 Neighbor Discovery Protocol (NDP) performs the same function as which two IPv4 protocols? (Choose two.). (A). ICMP. (B). ARP. (C). DNS. (D). DHCP.

71 What are two characteristics of a traditional Ethernet LAN? (Choose two.). (A). Nodes share a physical medium. (B). Nodes can successfully transmit simultaneously. (C). It consists of a single broadcast domain. (D). Nodes use a step-up algorithm when collisions are detected.

72 You are logged into a PE router participating in a Layer 3 VPN as defined in RFC 4364. You would like to ping the locally connected CE router's interface. The address of the interface is 192.168.1.1; the VPN routing-instance is named VPN-A.Which command will accomplish this task?. (A). ping routing-instance VPN-A 192.168.1.1. (B). ping instance VPN-A 192.168.1.1. (C). ping vpn-instance VPN-A 192.168.1.1. (D). ping VPN-A 192.168.1.1. (E). ping mpls l3vpn VPN-A 192.168.1.1.

73 You have recently configured MSTP on two switches in your network to participate in the same MSTP region. You issue the show spanning-tree mstp configuration command on both switches and notice that the configuration digests do not match. What does this mismatch indicate?. (A). Everything is functioning as expected because the configuration digests should not match. (B). You should ensure that the max-age and hello timers are equal on both switches. (C). You should ensure that the bridge IDs and priority values are unique on both switches. (D). You should ensure that the MSTIs and their VLAN IDs are equal on both switches.

74 Customer 1 has experienced some hardware failures that erroneously transitioned some links into a forwarding state, as shown in the exhibit. In this scenario, which STP feature set would solve this problem?. (A). MAC movement protection. (B). Loop protection. (C). BPDU protection. (D). Root protection.

75 Which statement about a virtual-router type of routing instance is correct?. (A). It is used to separate large networks into smaller administrative entities. (B). It is the only routing instance type supported on Junos devices. (C). It is used in Layer 3 VPN implementations. (D). It is used to create and maintain separate routing and forwarding tables.

76 Before configuring an RSVP LSP in your network, you first apply a baseline configuration to all of the routers.Which three configuration elements are minimally required in the baseline? (Choose three.). (A). family mpls on the loopback interface. (B). family mpls on the transit interfaces. (C). protocols ldp for the appropriate interfaces. (D). protocols mpls for the appropriate interfaces. (E). protocols rsvp for the appropriate interfaces.

What is the TTL value for EBGP?. (A). 64. (B). 48. (C). 255. (D). 1.

78 Which statement is true about routing instances on Junos devices?. (A). Routing information cannot be shared between routing instance. (B). Each routing protocol runs in a separate routing instance. (C). Junos device support only one routing instance. (D). Each routing instance is a unique grouping of routing tables, interfaces, and routing protocol parameters.

79 What are three label operations that an MPLS-enabled router performs? (Choose three.). (A). swap. (B). push. (C). pop. (D). insert. (E). rewrite.

80 Which statement correctly describes a characteristic of IPv6 unicast addressing?. (A). Global addresses are in the range of 2002::/16. (B). Only one loopback address exists, ::1/128. (C). Link-local addresses are in the range of FF00::/8. (D). Link-local addresses are in the range of FE00::/12.

81 Click the Exhibit button. Which two topologies shown in the exhibit could be implemented without a spanning-tree protocol? (Choose two.). (A). ring. B). tree. (C). star. (D). mesh.

82 Which configuration can be applied to ensure that no more than 600 MAC addresses are learned by a virtual switch?. (A). Option A. (B). Option B. (C). Option C. (D). Option D.

83 You asked to deploy a large-scale IS-IS network with multiple areas. In this scenario, which two statements are true? (Choose two.). (A). The area IDs must be the same for Level 2 routers to from an adjacency. (B). Level1 routers can from an adjacency with any other Level 1 router. (C). Level1 routers can from an adjacency with any other Level 2 router. (D). The area IDs must be the same for Level1 routers to from an adjacency.

84 You are asked to design a Layer 2 VPN service between service provider networks that needs Ethernet transport capabilities. The VPN should support two or three endpoints. Which Layer 2 VPN technology should you propose?. (A). LDP-signaled VPLS. (B). BGP-signaled VPLS, using the RFC 4448 Layer 2 frame format. (C). LDP Layer 2 circuit, using the RFC 4448 Layer 2 frame format. (D). BGP Layer 2 VPN.

85 Which two problems occur when increasing numbers of users are added to an Ethernet LAN with no switches present? (Choose two.). (A). There is a greater chance for collisions to occur. (B). The MAC table sizes increase. (C). Some devices will not see certain traffic. (D). There is unnecessary consumption of network bandwidth.

86 In your network, you have two LDP routers connected across four physical interfaces. You have also enabled LDP to operate on all four of those interfaces. What is the resulting outcome of your configuration between those two routers?. (A). One session is built across one neighbor relationship. (B). One session is built across four neighbor relationships. (C). Four sessions are built across one neighbor relationship. (D). Four sessions are built across four neighbor relationships.

87 An IS-IS level 1-only router is configured within a larger multilevel hierarchy. Which OSPF area type resembles the routing information in the L1 router's table?. (A). OSPF default area. (B). OSPF stub area. (C). OSPF NSSA. (D). OSPF NSSA with no summaries.

88 Referring to the exhibit, which statement about the IS-IS interface is true?. (A). The ge-0/0/0.0 interface will act as an L1/L2 interface. (B). The ge-0/0/0.0 interface will act as an L2 interface only. (C). The ge-0/0/0.0 interface will act as an L1 interface only. (D). The ge-0/0/0.0 interface will not be assigned to a level.

89 What are two benefits of using an OSPF designated router (DR)? (Choose two.). (A). Reduces the size of the link-state database. (B). Reduces LSA flooding on a broadcast segment. (C). Reduces LSA flooding throughout an OSPF area. (D). Reduces router resources used.

90 Click the Exhibit button. Given the OSPF topology shown in the exhibit, how many unique link-state databases are present in the network?. (A). 1. (B). 2. (C). 3. (D). 6.

91 Which Layer 2 mechanism logically groups network nodes into separate broadcast domains?. (A). IS-IS levels. (B). OSPF areas. (C). VLAN. (D). IP subnets.

92 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.

93 You are setting up a new IS-IS adjacency between two devices. The new Level1 adjacency is not establishing. What would cause this behavior?. (A). The routers support a minimum MTU of 1492 bytes. (B). The Level 1 routers have mismatched area IDs. (C). The router ID has not been explicitly configured. (D). The IP addresses are on different subnets.

94 You have just configured IPv6 in your network. A packet arrives on your router that exceeds the MTU size. How will an IPv6 router respond?. (A). The fragment offset is referenced and the packet is fragmented. (B). The packet is kept intact and not fragmented. (C). The packet is dropped. (D). The packet is fragmented based on extension headers.

95 Referring to the exhibit, if there is a connection failure between router1 and router2, how much time will pass before the devices declare the BFD session dead?. (A). 1200 ms. (B). 300 ms. (C). 600 ms. (D). 900 ms.

96 By default, the Junos OS advertises which address(es) in LDP forwarding equivalency class (FEC) messages?. (A). all router addresses. (B). all transit interfaces. (C). loopback address. (D). primary transit interface address.

97 Which two functions are performed by the OSPF designated router? (Choose two.). (A). It advertises link-state information to the AS. (B). It designates some routers as inactive when not needed. (C). It forms adjacencies with all the other OSPF routers on the link. (D). It chooses the backup designated router.

98 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.

99 Referring to the exhibit, which statement is correct?. (A). Routes from 10.1.1.1 are more preferred than routes from 10.2.2.2. (B). Routes from 10.2.2.2 are less preferred than the default local preference. (C). Routes from 10.3.3.3 are more preferred than the default local preference. (D). Routes from 10.2.2.2 are less preferred than routes from 10.3.3.3.

100 You are asked to enable a new BGP connection on R1, which has an existing IPv4 peering with R2. The new peering with R3 will use IPv6. Referring to the exhibit, which two steps are required to enable the new IPv6 peering? (Choose two.). (A). Configure an IPv6 address on the appropriate interface. (B). Configure the rib inet6.0 statement under the BGP group. (C). Configure an IPv6 neighbor address under the BGP group. (D). Configure an IPv6 local address under the BGP group.

101 Which two statements are correct regarding TLVs in IS-IS? (Choose two.). (A). PDUs contain different TLVs. (B). TLVs contain different PDUs. (C). The TLV attributes are type, length, and value. (D). The TLV attributes are time. Length, and variable.

Referring to the exhibit, which IS-IS router will be selected as the DIS?. (A). Router 1. (B). Router 4. (C). Router 2. (D). Router 3.

103 Router B is an OSPF router connected to both Area 0 and Area 2. Area 2 has been configured as a totally stubby area.Which three LSA types does Router B suppress from Area 2? (Choose Three.). (A). Router LSA. (B). Network LSA. (C). External LSA. (D). Summary LSA. (E). ASBR Summary LSA.

104 Referring to the exhibit, which statement is correct?. (A). R2 is an ASBR. (B). R1 is a backbone router. (C). R2 is an ABR. (D). R1 is an ABR.

105 You want to save adjacency formation time between two routers participating in OSPF, as well as reduce the size of the OSPF link-state database. How would you accomplish these tasks? . (A). Configure a virtual link. (B). Specify a designated router. (C). Specify a backup designated router. (D). Define a point-to-point connection.

106 Referring to the exhibit, which two statements are correct? (Choose two.). (A). The router will install the 0.0.0.0/0 route into the routing table when no BGP prefixes are present. (B). The router will remove the 0.0.0.0/0 route from the routing table when no BGP prefixes are present. (C). The router will remove the 0.0.0.0/0 route from the routing table when any BGP prefixes are present. (D). The router will install the 0.0.0.0/0 route into the routing table when any BGP prefixes are present.

107 You have configured multiple IP-IP tunnels across your network to provide connectivity to remote sites.Which technique is used to help the IP endpoints in your network determine the optimal packet size to send across your tunnels?. (A). path MTU discovery. (B). fragmentation discovery. (C). end-to-end MTU discovery. (D). packet throughput discovery.

108 Which action would you use to connect two virtual switches that are configured on the same router?. (A). Create a VRF routing instance. (B). Create a forwarding routing instance. (C). Connect the virtual switches with a cable. (D). Configure an irb interface.

109 By default, which three criteria are used by the Junos load-balancing algorithm to determine a traffic flow? (Choose three.). (A). protocol. (B). source port. (C). destination port. (D). source address. (E). destination address.

110 What is the correct description of an Area Border Router (ABR)?. (A). An ABR is an OSPF router with links in two areas, connecting OSPF areas to the backbone. (B). An ABR is an OSPF router that injects routing information from outside the OSPF AS. (C). An ABR is an OSPF router with at least one link in a Layer 2 area. (D). An ABR is an OSPF router with all of its links within an area.

111 Which forwarding table designation is used to indicate that load balancing is working correctly?. (A). ucst. (B). msct. (C). ulst. (D). mlst.

112 You are establishing RSVP LSPs through your MPLS-enabled network. You are asked to ensure that the LSPs will support end-to-end class-of-service handling. Which statement is correct in this scenario?. (A). Configure ultimate-hop-popping on the egress device. (B). Configure implicit-null on all MPLS-enabled devices. (C). Configure explicit-null on all MPLS-enabled devices. (D). Configure entropy-label on the egress device.

113 Referring to the configuration in the exhibit, which two statements are true? (Choose two.). (A). The next-hop 172.16.1.2 must respond to ping commands for the route 192.168.5.0/24 to be active. (B). The next-hop 172.16.1.2 must be active in route table inet 3 for the route 192.168.5.0/24 to be active. (C). The next-hop 172.16.1.2 must be part of an active route in route table inet 0 for route 192.168.5.0/24 to be active. (D). The next-hop 172.16.1.2 must be directly connected to the router for route.

114 You have been asked to provision a service provider's network to accommodate Layer 3 VPNs as defined in RFC 4364.Which three tasks must be performed before the provider network is ready to carry VPN traffic? (Choose three.). (A). All Juniper Networks PE routers must be configured with an appropriate router-ID unique to the VPN. (B). All Juniper Networks PE routers must be configured with an appropriate route-target unique to the VPN. (C). All Juniper Networks PE routers must be configured with a routing-instance of type forwarding. (D). All Juniper Networks PE routers must be configured with a routing-instance of type vrf. (E). All Juniper Networks PE routers must be configured with a routing-instance containing the CEfacing interface.

115 Click the Exhibit button. Referring to the exhibit, what must be true of the vlan_100 bridge domain?. (A). vlan_100 has at least one Ethernet interface assigned to it. (B). vlan_100 does not have an Ethernet interface assigned to it. (C). vlan_100 might have an active Ethernet interface assigned to it. (D). vlan_100 does not have an active Ethernet interface assigned to it.

116 Which statement is true when using MVRP on MX Series devices?. (A). MVRP works with MSTP and RSTP, but not VSTP. (B). MVRP works with RSTP and VSTP, but not MSTP. (C). MVRP works with MSTP and VSTP, but not RSTP. (D). MVRP does not work with MSTP, RSTP, and VSTP.

117 What must be configured for all IBGP speakers in an AS to have consistent routing information?. (A). Partial mesh of EBGP sessions between EBGP speakers. (B). Default routes to the IBGP gateways. (C). Static routes to the EBGP gateways. (D). Full mesh of IBGP sessions between IBGP speakers.

118 You have been asked to use a convention that allows for auto configuration of interface addresses. You are not allowed to use DHCPv6. What do you do?. (A). Use IPv4 with the autoconfig option under family inet. (B). Use IPv6 in the network to configure hosts. (C). Use a program (e.g. Vector-Wiz) to auto configure IP addresses. (D). Use an IPv6 static configuration.

119 Which packet type does the router use to request up-to-date link-state information?. (A). IIH. (B). LSP. (C). PSNP. (D). CSNP.

120 To prevent fragmentation issues across a GRE tunnel, which MTU value is recommended for the tunnel to accommodate most IP packets?. (A). 1476. (B). 1492. (C). 1500. (D). 1524.

121 Referring to the exhibit, which statement is correct?. (A). Interface ge-3/0/0.0 has a default metric of 10. (B). Interface xe-0/0/0.0 can only form a single adjacency. (C). Interface xe-0/0/0.0 has a default metric of 10. (D). Interface ge-1/0/0.0 can only form a single adjacency.

122 By default, at which router will the implicit null (Label3) action take place for LSP shown in the exhibit?. (A). R4. (B). R2. (C). R1. (D). R3.

123 By default, which RSVP reservation style is used by the Junos OS?. (A). fixed explicit. (B). fixed filter. (C). shared explicit. (D). wildcard filter.

124 What are two methods for decreasing the size of an OSPF link-state database (LSDB)? (Choose two.). (A). Ensure that all routers on a shared segment are configured with a priority value of 0. (B). Use an interface type of p2p when possible. (C). Segment large groups of routers into areas. (D). Change a stub area to NSSA when possible.

125 Which statement is true about the operation of Layer 2 VPNs?. (A). Layer 2 VPNs require that CE devices use the same Layer 2 encapsulation. (B). Layer 2 VPNs do not permit CE devices to operate a Layer 3 protocol with each other. (C). Service provider routers must evaluate the IP header of packets as they traverse their network. (D). Layer 2 VPNs allow CEs to use different encapsulations on either side of the VPN.

126 You are asked to change the default TTL handling behavior on your Junos device to ensure that the RSVP-signaled LSPs in your MPLS network cannot be mapped. Which configuration should be performed to accomplish this task?. (A). Configure the no-decrement-ttl parameter for each LSP on the ingress device. (B). Configure the no-propagate-ttl parameter for each LSP on the egress device. (C). Configure the no-propagate-ttl parameter for each LSP on the ingress device. (D). Configure the no-decrement-ttl parameter for each LSP on the egress device.

127 Which IPv6 extension header notifies intermediary devices that they must inspect the packet's options?. (A). destination options header. (B). routing header. (C). hop-by-hop options header. (D). fragment header.

128 Which MPLS feature works with Constrained Shortest Path First (CSPF) to protect against the primary and secondary paths using the same link?. (A). fate-sharing. (B). explicit null configuration. (C). policy control over LSP selection. (D). LSP metrics.

129 Click the Exhibit button. The policy shown in the exhibit has been configured and installed on your router. What is the result of applying this policy?. (A). The 172.18.1.0/24 network will be redistributed into OSPF as an external route. (B). The 172.18.1.0/24 network will be redistributed into OSPF as an internal route. (C). The 172.18.1.0/32 network will be redistributed into OSPF as an external route. (D). The 172.18.1.0/32 network will be redistributed into OSPF as an internal route.

130 Referring to the exhibit, which two statements are true? (Choose two.). (A). The configuration is for an external BGP session. (B). The local-address statement is not required for the BGP session to establish correctly. (C). The configuration is for an internal BGP session. (D). The local-address statement is required for the BGP session to establish correctly.