EMT Practice Test

1. Question Content...

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Question1: What command will show the OSPF neighbors, and their status on the Nokia 7750 SR?

Question2: What is the source IP address in an OSPF update?

Question3: An OSPF backbone area contains Type 5 LSAs. If an attached area receives only Summary LSAs from the backbone area, what type of area is the attached area?

Question4: An OSPF ASBR must have at least one interface in the backbone area (area 0)

Question5: Which of the following about the OSPF BDR is TRUE?

Question6: What is the CIDR summary for the block of networks from 193.45.32.0/24 to 193.45.47.0/24?

Question7: Which of the following statements regarding IS-IS DIS is false?

Question8: Click the exhibit button.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding Type 4 LSA generation is true?

Question9: Click the exhibit button.

192.168.3.1 is a loopback interface on router R2 and is distributed to OSPF area 0, but the ping fails from router R3. Which of the following is a possible solution to the problem?

Question10: Which field of an IPv6 header indicates an upper layer protocol carried in the packet?

Question11: Click on the exhibit.

The operator of an IS-IS network wishes to have link metrics dynamically calculated in the same manner as OSPF. The router with system address 10.10.10.1 is one hop away on a 1Gbps link Which of the following is correct?

Question12: Which of the following about 6over4 is FALSE?

Question13: If the OSPF reference bandwidth is set to 1000 Gbps. what is the cost of a 1 Gbps interface?

Question14: Static routing is to be used in a network between a corporate head office with many connected networks, and a branch office with one connection to the head office. Which of the following best describes the likely configuration?

Question15: What value should the AFI be set to for locally administered addressing?

Question16: Which of the following is optional when configuring IS-IS on the Nokia 7750 SR?

Question17: What event causes an OSPF adjacency to change from 'down' to 'two way'?

Question18: What command is used on the Nokia 7750 SR to define the default action to be taken if a packet does not match any entry in an IP filter?

Question19: What are the three databases maintained by a Link State Protocol?

Question20: An IS-IS router receives a CSNP that references an older LSP than the one in its database. What action is taken?

Question21: Which OSPFv3 LSA type is similar in function to the OSPFv2 Type 3 LSA?

Question22: Which of the statements about the output in the exhibit is FALSE?

Question23: What command could be used to verify proper configuration of a static route in an Nokia 7750 SR router?

Question24: What command will show the IS-IS neighbors, and their status on an Nokia 7750 SR?

Question25: Which of the following best describes the actions after an IS-IS router receives on a broadcast interface, a newer LSP than the one in its database?

Question26: When a router receives an IP packet, but does not find a match in the routing table for the destination IP address, what actions are performed by the router?

Question27: When IS-IS is electing a DIS, what is used as the tie breaker on an Nokia 7750 SR, if the priorities are the same?

Question28: Which of the following best describes the actions taken by an IS-IS router after it receives an LSP on a broadcast interface that is newer than the one in its database?

Question29: Graceful Restart is supported by what IGPs?

Question30: Which of the following types of network topologies are supported by IS-IS on the Nokia 7750 SR? Choose two answers.

Question31: Which of the following features are supported by IS-IS? Choose three answers.

Question32: Which of the following about Type 4 LSAs is FALSE?

Question33: An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action is taken by the router?

Question34: When IS-IS elects a DIS, what is used as the tie breaker on an Nokia 7750 SR, if the priorities are the same?

Question35: Which of the following OSPF area types are supported by the Alcatel- Lucent 7750 SR? Choose two answers.

Question36: Which OSPFv3 LSA type is generated by an ABR to advertise prefixes from one area to another?

Question37: There is an IP host with IP address 10.2.3.1. A static route is created, using the "configure router static- route 10.2.3.0/24 next-hop 10.1.2.1" command. What is the correct traceroute command to test this static route on an Nokia 7750 SR?

Question38: At what point is the LSP SRM flag cleared when an LSP is sent on an IS-IS point-to-point link?
Choose two answers.

Question39: Click the exhibit button.

Assuming that the router ID of the router shown is 10.10.10.4, which of the following statements regarding the CLI output is true?

Question40: Click on the exhibit.

OSPF router R2 has both point-to-point and broadcast interfaces and it is not a DR for any interfaces.
Router R2 detects the link failure between itself and router R1.
Which of the following is correct?

Question41: Which of the statements below best describes the pseudonode in an IS-IS network?

Question42: Click on the exhibit.

If router R2 re-distributes the IS-IS route 192.168.3.0/24 into OSPF, router R3 will receive two routes to
192.168.3.0/24 Assume that all IS-IS routers are L1/L2 capable and are in the same area.
What will be the preference of the two routes?

Question43: Click on the exhibit.

Before the link failure, all routers have operational OSPF adjacencies between them and there is a BFD session between routers R1 and R3.
After the link failure, which of the following affects the IGP convergence time?

Question44: Which is the OSPFv3 equivalent to the OSPFv2 Type 7 LSA?

Question45: In an IP datagram, which field identifies the receiving application

Question46: Click on the exhibit.

Router R4 is being added to the network and it is connected to a non-OSPF domain.
Which area type should be used for Area 1 to allow the external routes to be advertised into Area 0?

Question47: An interface has a MAC address of 24-16-4d-16-b5-3d. What link-local address will be assigned to this interface?

Question48: How are LSPs acknowledged on IS-IS broadcast links?

Question49: Which of the LSA types stay within an OSPF area and are not exported outside of the area? (Choose all that apply)

Question50: The exhibit shows a route to 2001:DB8:1:200::/56 in the IPv6 route table. How did the route get into the route table?

Question51: Click the exhibit button.

Given the diagram in the exhibit, what would be the correct static route configuration on the router on the right, if it is an Nokia 7750 SR?

Question52: Which of the following is an optional parameter when configuring IS-IS protocol on a router?

Question53: NSSA LSA packets are what type within an NSSA area, and are converted to what other type at the ABR?

Question54: Click on the exhibit.

Based on the topology shown and the route tables of routers R3 and R4, which of the following is correct?

Question55: What is the default priority value used for electing the DR on an Nokia 7750 SR running OSPF on an Ethernet?

Question56: Choose the Distance Vector Protocols from the list below:

Question57: Click on the exhibit.

Assuming point-to-point links, which of the following is TRUE?

Question58: What are the types of networks supported on an Nokia 7750 SR for OSPF? (Choose 2)

Question59: Which OSPFv3 LSA is similar to the OSPFv2 Type 5 LSA?

Question60: How many databases does a Link State routing protocol use?

Question61: Which of the following statements concerning OSPFv3 is false?

Question62: Which of the following statements regarding OSPF routing updates on a multi-access network segment is true?

Question63: Click the exhibit button.

The following command sequence is executed on router R2:
A: R2# configure router ospf router-id 10.10.10.99

A: R2# configure router router-id 10.10.10.66

On router R1, what router ID appears for router R2 directly after these commands are executed?

Question64: Click the exhibit button.

Two neighboring OSPF routers have exchanged the packets shown. What state is the adjacency in?

Question65: Which of the following cannot be used as a matching criterion in route policy statements?

Question66: What acts as the tie breaker on an Nokia 7750 SR if the priorities are the same when IS-IS is electing a DIS?

Question67: Click on the exhibit.

A service provider is deploying a 6 over 4 tunnel to connect a customer's corporate IPv6 network to all devices at the branch office as shown in the exhibit.
Which command is used to create the route to the branch office network on PE1?

Question68: Which of the following is not included in a Router LSA?

Question69: Which of the following is the correct list of the OSPF area types that are supported by the Nokia 7750 SR?

Question70: What is wrong with the following filter configuration from an Nokia 7750 SR?
RTR-B# configure filter
RTR-B>config>filter# ip-filter 1 create
RTR-B>config>filter>ip-filter$ entry 1 create
RTR-B>config>filter>ip-filter>entry$ match src-ip 172.2.0.0/16
RTR-B>config>filter>ip-filter>entry# action drop
RTR-B# configure router interface toRTR-A
RTR-B>config>router>if# egress
RTR-B>config>router>if>egress# filter ip 1

Question71: Which of the following about IS-IS is FALSE?

Question72: Click on the exhibit.

All ports in the network are operationally up and have a speed of 1Gbps.
Which of the following is TRUE?

Question73: An interface is configured on a router for OSPF but the command "show router ospf neighbor" does not show any neighbors. Which of the following is NOT a possible cause?

Question74: Which of the following are similarities between OSPF and IS-IS? Choose two answers.

Question75: Which of the following TLV fields is included in an IS-IS Hello packet on broadcast interfaces but not on point-to-point interfaces?

Question76: If two routers running IS-IS protocols are exchanging Hello packets with different authentication types, which of the following statements regarding the adjacency state established between them is true?

Question77: Click on the exhibit.

Router R2 learns the networks shown from IS-IS. Router R2 is configured to redistribute routes from IS-IS to OSPF as shown. Assume the OSPF and IS-IS adjacencies are operational.
How many OSPF Type 5 LSAs will router R1 receive from router R2?

Question78: How is the DR selected when an OSPF router is added to a broadcast network?

Question79: Which of the following statements describe the major features of OSPF? Choose two answers.

Question80: Click on the exhibit.

The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS routing so that the IPv6 system addresses are also exchanged between routers.
After IPv6 has been configured, which of the following is TRUE?

Question81: Which of the statements below best describes the operation of the IPv6 anycast address?

Question82: Which LSA type is not found in point-to-point only OSPF networks?

Question83: Static routing will be used in a network between a corporate head office, with many connected networks, and a branch office, with one connection to the head office. Which of the following best describes the likely configuration?

Question84: Which type of OSPF LSA has the following characteristics: It is flooded only within the area it originates from and can be originated by any OSPF router within the area (including non-DR routers).

Question85: When redistributing OSPF into RIP V2 what must be taken into consideration for the redistribution to take place?

Question86: What is the default preference value for a static route in the Nokia 7750 SR?

Question87: How are LSPs acknowledged on IS-IS broadcast links?

Question88: Click on the exhibit.

Two neighboring OSPF routers have exchanged the packets shown. What state is the adjacency in?

Question89: Click on the exhibit.

The route table on router R2 shows the system address of router R5 but it does not show any of the interfaces from the non-OSPF area.
What may be causing this?

Question90: Which of the following regarding the IS-IS PSNP is FALSE?

Question91: Click on the exhibit.

What type of OSPFv3 LSA is shown?

Question92: Click on the exhibit.

OSPF is operational on all links in the network diagram, all links have the same cost and all routers are configured with an ECMP value of 4. Router R4 advertises the prefix 192.168.3.0/24 into OSPF.
How many entries for prefix 192.168.3.0/24 will be l n router R1's routing table?

Question93: Which of the following statements regarding area border routers in an OSPF network is true?

Question94: Which of the following statements regarding the IS-IS CSNP is false?

Question95: Which OSPFv3 LSA type is similar in function to the OSPFv2 Type 4 LSA?

Question96: Which of the following is FALSE regarding link-state protocols?

Question97: Click on the exhibit.

An OSPFv3 router is attached to a non-OSPF domain that includes networks 2001:DB8:8::/64.2001
.DB8:9::/64 and 2001 :DB8:A::/64. Other routers in the OSPF domain see the prefix 2001, DB8:8::/64, but not the other two prefixes.
What could cause this?

Question98:
A service provider is deploying a 6over4 tunnel to connect a customer's branch office IPv6 network to the corporate headquarters as shown in the exhibit. Which command is used to create a default route on PE2 for the branch office network?

Question99: When configuring a filter, where should the most explicit entries be placed?

Question100: Click the exhibit button.

What can you deduce from the show command on router R6?

Question101: Which of the following is FALSE about the databases used by a link-state routing protocol in a single area routing domain?

Question102: Which of the following commands can be used to display the number of SPF computations that have been performed on a router?

Question103: Which of the following best describes the forwarding of a IPv6 packet that has a destination anycast address?

Question104: Static routing is to be used in a network between a corporate head office with many connected networks and a branch office with one connection to the head office. Which of the following is the most likely configuration on the head office and branch office routers?

Question105: Click on the exhibit.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. There are no stub or NSSA areas. Which of the following regarding LSAs is TRUE?

Question106: Which of the following statements best describes an OSPF type 3 LSA?

Question107: In an IP datagram, which of the following fields identifies the receiving application?

Question108: What is the replacement for ARP in IPv6?

Question109: What is the source IP address in an OSPF update?

Question110: Click on the exhibit.

A static route has been configured on router R1 to reach the PC at 139.120.121.2. What else is required to make the ping succeed?

Question111: Which of the following is not one of the MT topologies defined for IS-IS?

Question112: Click the exhibit button.

A static route is created on router R1 "using the "static-route 0.0.0.0/0 next-hop 10.3.3.2" command. What command can be used to test the static route on an Nokia 7750 SR?

Question113: Which type of LSA packets describe external routes originated within an NSSA area, and to what type are they converted to at the ABR?

Question114: Click on the exhibit.

Examine the physical topology of the IS-IS network, the metrics of the links and the levels of the routers.
All routers have a system address included in IS-IS.
Which of the following describes the route that router R4 will use to reach the system address of router R6?

Question115: If routers R1 and R2 have a Level 1 and Level 2 IS-IS adjacency, which of the following statements is true? Choose two answers.

Question116: From the list below identify two matching criteria supported for IP filters on the Nokia 7750 SR: (Choose two)

Question117: A static route is created using the command "static-route 2.3.4.0/24 next-hop 1.2.3.4". What is the correct traceroute command to test this static route on an Nokia 7750 SR?

Question118: How many bytes make up the system ID in an IS-IS NSAP address on the Nokia 7750 SR?

Question119: Click the exhibit button.

What is the command to configure a static route on the Nokia 7750 SR router R1 to reach the network behind router R2?

Question120: Click the exhibit button.

Router 2 advertises the network 192.168.3.0/24 to router R1 via IS-IS.
How can router R1 ensure that it discards the route?

Question121: Click on the exhibit.

If router R2 re-distributes the IS-IS route 192.168.3.0/24 into OSPF, router R3 will receive two routes to
192.168.3.0/24. Assume that all IS-IS routers are L1/L2 capable and are in the same area.
Which of the following is TRUE?

Question122: What are the similarities between OSPF and IS-IS? Choose two.

Question123: On which type of IS-IS router is summarization most likely to be configured?

Question124: Click on the exhibit.

Given the output shown, which router is the ASBR in this network?

Question125: Click on the exhibit.

What does the field "2001:DB8:111::/64" represent?

Question126: Click the exhibit button.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. Assuming that there are no stub networks, which of the following statements regarding type 4 LSA generation is true?

Question127: Which component of the Nokia 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?

Question128: Which of the following regarding IS-IS DIS is FALSE?

Question129: Click on the exhibit.

The numbers beside the links are the metrics for that link.
Given the diagram, what path will traffic follow from router R2 to router R8, and from router R8 to router R2, if IS-IS is the routing protocol?

Question130: What is the primary purpose of classless interdomain routing (CIDR)?

Question131: An Nokia 7750 SR receives a route via an IS-IS LSP with internal reach ability, and receives the same route via an OSPF type 5 LSA. If al protocol preferences are default, which route will be installed in the route table?

Question132: Click the exhibit button.

For the IS-IS network shown, and assuming point-to-point links, what adjacencies will router R1 establish?

Question133: Click on the exhibit.

What triggers convergence of the routing protocol when the link between switch 1 and switch 2 goes down?

Question134: Which of the following concerning OSPFv3 is TRUE?

Question135: Click the exhibit button.

Router R2 advertises the network 192.168.3.0/24 to router R1 via OSPF. A route policy has been constructed to discard the route on router R1; however, it is not working. What is the problem?

Question136: Which of the following statements regarding distance vectors protocols are true?
(Choose two answers).

Question137: Click on the exhibit.

Given the output shown, which router is the ASBR in this network?

Question138: In which of the following types of areas does an OSPF router not set the E bit in its Type 1 LSA?

Question139: Two IS-IS L1/L2 routers are in the same area on the same Ethernet segment. How many adjacencies will be formed between them?

Question140: Which type of LSA packets describe external routes originated within an NSSA area, and to what type are they converted to at the ABR?

Question141: Click on the exhibit.

OSPF is operational on all links in the network diagram, all links are the same cost, and all routers are configured with an ECMP value of 4. Router R4 advertises the prefix 192.168.3.0/24 into OSPF.
How many entries for prefix 192.168.3.0/24 will be in router R5's routing table?

Question142: A router sets the E bit in the flags of its Type 1 LSA. What does this indicate?

Question143: Which function or component of the Nokia 7750 SR is in charge of supporting dynamic routing protocols and constructing the routing table?

Question144: Identify two attributes of Distance Vector Protocols: (Choose two)

Question145: Click on the exhibit.

Router R2 uses OSPF to advertise the network 192.168.3.0/24 to router R1. A route policy has been configured to reject the route on router R1.
Why doesn't the route policy work?

Question146: Which of the following statements regarding IS-IS Hello packets are true? Choose two answers.

Question147: Click on the exhibit.

Which of the following would you expect to see in router R4's OSPF database?

Question148: A default route for a client is also known as the:

Question149: Click on the exhibit.

Router R1 learns the network 192.168.3.0/24 from IS-IS. Given the OSPF configuration shown, why isn't the 192.168.3.0/24 route in router R3's route table?

Question150: Click on the exhibit.

The operator of an IS-IS network wishes to have link metrics dynamically calculated in the same manner as OSPF. The router with system address 10.10.10.1 is one hop away on a 1 Gbps link Which of the following is correct?

Question151: Click on the exhibit.

What is the correct command to configure a default route on the Nokia 7750SR R2?

Question152: How are LSPs acknowledged on IS-IS broadcast links?

Question153: Which type of LSA packets describe external routes originated within an NSSA area, and to what type are they converted to at the ABR?

Question154: Which of the following correctly lists the 5 OSPF packet types?

Question155: How are IS-IS LSPs sent on point-to-point links?

Question156: Which of the following statements best describes the function of an OSPF Type 4 LSA?

Question157: Click on the exhibit.

The OSPF adjacency between routers R1 and R3 does not come up.
Which of the following is a possible solution to the problem?

Question158: Which three IS-IS PDU types are used for database synchronization?

Question159: Click the exhibit button

The 192 168 3.0/24 network is learned on router R1 via IS-IS Given the OSPF configuration shown, and assuming that the OSPF adjacency between routers R1 and R3 is up, why is the 192 168.3.0/24 route not in router R3's route table? (Choose two)

Question160: Which of the following route types must be manually configured and will not re-route traffic when a link failure occurs in its path?

Question161: What causes an adjacency to change from "Init" to "Two Way"?

Question162: The solicited node address for the destination node address of 2001:DB8::30A:216 4DFF:FE14:6CAE is:

Question163: A router receives an OSPF database description packet from a neighbor that references an LSA, which is already in the router's LSDB. The sequence number in the DBD packet is lower than the sequence number of the LSA in the LSDB.
What action does the router take?

Question164: What are the default Hello and Dead timer intervals for OSPF on the Nokia 7750 SR?

Question165: A static route needs to be configured with a next-hop that is NOT directly connected to the router. Which of the following must be TRUE?

Question166: Given the NSAP address of 49.0012.1234.1234.1234.00, what area does the IS-IS router reside in?

Question167: Which of the following types of networks are supported on an Nokia 7750 SR for OSPF? Choose two answers.

Question168: When multiple routing protocols offer a route for the same prefix, what part of the router is in charge of deciding which route to make active?

Question169: Click the exhibit button.

Which of the following would correctly configure routers R2, R3, and R4?

Question170: Which of the following describes the method used to resolve an IPv6 address to a MAC address?

Question171: If a Router originates a type 1 router LSA with the E bit set what types of areas can it belong to? Select all that apply.

Question172: Click the exhibit button.

A static route is created on router R1 using the command "static-route 0.0.0.0/0 next-hop 10.3.3.2". What command can be used to test the static route on an Nokia 7750 SR?