EMT Practice Test

1. Question Content...

---

Question1: A router receives a packet whose destination address is 195.26.17.4. Which of these subnets does this address belong to?

Question2: ABR of a Stub area does not flood Type-5 and Type-4 LSAs into the area. Therefore, the Stub area does not have the external AS routing capability. ABRs of the Stub area generate a default route into the area which enables packet forwarding to external destinations.

Question3: OSPF uses SPF algorithm to compute the SPF tree based on the topology. What is the node of the 5PF tree?

Question4: The most remarkable characteristic of OSPF is that it can support the link-state algorithm.

Question5: Which of the following elements together uniquely identify a LSA? (Select 3 answers)

Question6: ACLs can match routing information or data packet addresses to filter unmatched routing information or data packets.

Question7: In the process of calculating SPF tree, the cost from a given node to its root node is equal to the metric listed in the Router LSA generated by the node.

Question8: Unlike Stub area, an NSSA supports Type-5 LSAs.

Question9: What are the functions of route filtering? (Select 3 answers)

Question10: ACL rules are matched based on the configured order only.

Question11: BGP is an inter-AS routing protocol. Which statements regarding BGP are true? (Select 3 answers)

Question12: Which of the following statements are true if a BGP peer is configured with "multiple" route selection tools for route filtering? (Select 2 answers)

Question13: Which of the following is the address range assigned by IANA for SSM service in IPv4?

Question14: Which of the following statements regarding DR in PIM protocol are true? (Select 3 answers)

Question15: Which of the following statements regarding ACL type are true? (Select 3 answers)

Question16: Which of the following BGP attributes can prevent routing loops? (Select 3 answers)

Question17: How many hosts can the network 154.27.0.0 support, if not subnetted?

Question18: The ABR of an NSSA does not advertise Type-4 and Type-5 LSAs to an NSSA instead it imports external routes into the NSSA,

Question19: Which of the following is not supported by policy-based routing for specifying the data forwarding path?

Question20: Which of the following parameters are optional when configuring a BGP peer? (Select 2 answers)

Question21: Which of the following messages needs to be sent out by a downstream interface when recovering from the pruned state to the forwarding state in PIM DM?

Question22: Which statements regarding prerequisites to establish a BGP peer relationship are true? (Select 2 answers)

Question23: How does a BGP router process a received route whose next hop is unreachable?

Question24: Which BGP attribute is usually used to determine the path along which data flows to an AS?

Question25: Which of the following IP addresses can be used on a public network? (Select 2 answers)

Question26: Which of the following is used to avoid routing loops in BGP?

Question27: Which statements regarding the local preference attribute are true? (Select 2 answers)

Question28: By default, the cost of an OSPF interface is calculated based on the bandwidth. The formula to calculate the cost is reference bandwidth/interface bandwidth.

Question29: Which of the following statements is false?

Question30: Which of the following statements regarding comparison between ACL and IP-Prefix are true? (Select 2 answers)

Question31: When running in non-broadcast networks, OSPF uses one of the two modes: NBMA or P2MP.

Question32: Which of the following elements are used by Network LSA to describe broadcast or NBMA network segments in OSPF routing protocol? (Select 3 answers)

Question33: What is the mask value for the network 175.25.128.0/19?

Question34: In VRP, by default, a BGP router automatically retransmits an update packet to its peers after the outbound routing policy for the BGP peers changes.

Question35: Enabling MD5 authentication between BGP peers can prevent DoS attacks that target BGP peers.

Question36: Which of the following BGP filters can be used to set route attributes?

Question37: Once a BGP connection is established, a BGP speaker advertises all the optimal routes in the BGP routing table to its peers.

Question38: Which of the following route selection tools is used in multiple routing protocols, can be configured with match conditions, and consists of if-match and apply clauses?

Question39: If there are two BGP routes with the same destination address but different next hops in a BGP routing table, then which statement regarding the two BGP routes is true?

Question40: Policy-based routing and routing policies implements the forwarding of data packets in different ways: A routing policy mainly controls packet forwarding. According to the routing policy, packets can be forwarded without a routing table; Policy-based routing mainly controls the importing, advertising, and receiving of routing information.

Question41: Which of the following route entries match the IP-Prefix defined below?
ip ip-prefix test index 10 permit 192.168.0.0 16 greater-equal 24 less-equal 28 (Select 2 answers)

Question42: Which of the following routers can initiate SFT switchover on a PIM-SM network? (Select 2 answers)

Question43: Which of the following routes matches the ACL filter given below?
"acl number 2001
rule 0 permit source 1.1.0.0 0"

Question44: Which of the following statements are false? (Select 3 answers)

Question45: The Origin attribute of the BGP routes injected with the network command are considered IGP.

Question46: Which of the following statements is false?

Question47: BGP peers are automatically discovered by exchanging multicast packets.

Question48: The NBMA mode doesn't function if all the routers in the network are not fully connected.

Question49: How many hosts are available per subnet if you apply a /21 mask to the class B network?

Question50: Which statement regarding BGP is false?

Question51: You are using the address space 172.28.100.0/24. If the subnet mask 172.28.100.0/30 is used to subnet this address space to serve WAN links, how many total subnets can the address space be divided into?

Question52: Over a working TCP connection, what is the state of the BGP peer relationship if the peer AS number configured for a BGP router is inconsistent with the AS number of its BGP peer?

Question53: Which of the following elements are used to describe a single link in OSPF routing protocol? (Select 3 answers)

Question54: A BGP finite state machine has the following states:
Active
OpenConfirm
Idle
Established
OpenSent
What is the state transition sequence to establish a successful BGP peer relationship?

Question55: If both the ospf cost and reference-bandwidth are configured on an interface, the value set by the ospf cost command is used as the cost of the interface.

Question56: Which of the following BGP attributes are optional in a BGP Update packet? (Select 2 answers)

Question57: An OSPF neighbor relationship fails to establish and the OSPF error information is displayed as follows.
Which of the following is most likely the cause?

Question58: Which of the following statements regarding a multicast distribution tree are true? (Select 3 answers)

Question59: Which of the following commands is used to display the IGMP routing table?

Question60: What is the maximum number of hosts that a network segment 192.168.2.16/28 can support?

Question61: Which of these statements is true when configuring MD5 authentication between BGP peers?

Question62: Which of the following statements are incorrect regarding Link ID of Router LSA in an OSPF routing protocol? (Select 2 answers)

Question63: Which of the statements describes how BGP updates routes?

Question64: Which of the following statements are correct regarding OSPF Network LSAs? (Select 2 answers)

Question65: How many bits of the MAC address space is available for mapping IP multicast addresses?

Question66: An IP-prefix-filter is used for filtering IP prefixes and data packets.

Question67: Which of the following protocols support the multicast ASM service model? (Select 2 answers)

Question68: How does community attribute of the BGP route set by routing policies affect route selection?

Question69: Which of the following network link type is not the basic network link type defined in OSPF?

Question70: Which of the following statements regarding the Reverse Path Forwarding (RPF) mechanism are true? (Select 2 answers)

Question71: Which command triggers the advertisement of BGP routes without interrupting a BGP connection?

Question72: ABRs advertise link state information about non-backbone areas into backbone areas. The backbone area then advertises the routing information into other non-backbone areas. Link state information about the backbone area cannot be advertised into non-backbone areas.

Question73: Which of the following statements regarding BGP route selection rules are true? (Select 3 answers)

Question74: Which of the following statements regarding an AS-external-LSA are true? (Select 3 answers)

Question75: Type 2-external route should always take precedence over a Type 1-external route.

Question76: RTA is a source's DR and RTB is an RP. A multicast source sends multicast data to RTA but RTB cannot find any information about the multicast source (registered by using the PIM Register message). Why?
(Select 3 answers)

Question77: All routing protocols can deliver default routes, supporting both forcible delivery and non-forcible delivery.

Question78: BGP speakers sends which type of message to identify its peer's AS number information?

Question79: Which of the following conditions must be met for importing routes into BGP using the network command?
(Select 2 answers)

Question80: Which of the following is the multicast distribution tree maintained by PIM-DM?

Question81:

Question82: A broadcast and an NBMA network, each having two or more routers, must have both DR and BDR.

Question83: We can have different network segments in an OSPF area. We can also have same network segment in different OSPF areas.

Question84: Which of the following statements about OSPF neighbor state transition are true? (Select 3 answers)

Question85: Which of the following route entries matches ACL 2001 that is defined below?
1.0.0.0/8 ,1.2.0.0/16,1.2.3.0/24,1.2.4.0/24,1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24 ACL 2001:
Basic ACL 2001, 1 rule
Ad's step is 5
rule 0 permit source 1.2.1.0 0.0.254.255

Question86: Which statement about OSPF is false?

Question87: The defined route-policy set-cost configurations are:
ip ip-prefix 1 permit 10.1.0.0 16
route-policy Set-cost permit node 10
if-match ip-prefix 1
apply cost 300
route-policy Set-cost permit node 20
apply cost 200
Which of the following statements is true?

Question88: In a route-policy, which BGP attributes can be used to define apply clauses? (Select 3 answers)

Question89: Which statement about OSPF is false?

Question90: OSPF supports two authentication modes: area authentication and interface authentication. These two modes cannot be configured at the same time.

Question91: According to BGP route selection rules, a local route that is automatically summarized takes precedence over a local route that is manually summarized.

Question92: An ACL is a series of orderly rules composed of permit deny clauses. Which of the following attributes cannot be used for defining an ACL rule?

Question93: Which of the following statements are correct regarding BGP attributes? (Select 2 answers)

Question94: The peer connect-interface" command is recommended to establish peer relationships between two routers connected through "multiple" links.

Question95: A company reserves the network segment 172.29.100.0/26 for some remote small-scale sites. Each site has 5 IP devices to connect to this network segment. Which of these Variable Length Subnet Masks (VLSMs) can be used to accommodate the need for minimum number of hosts?

Question96: The ospf dr-priority value ranges from 0 to 255 and is 64 by default.

Question97: A network administrator is required to construct a small-scale network containing only 22 hosts. The ISP has provided only a single public IP address that is to be used as the egress address. Which of the following addressing schemes can be used to plan such a network?

Question98: Which of the following statements are correct regarding how OSPF detects old or duplicate LSAs? (Select
3 answers)

Question99: Which of the following situatbns will occur when the command multicast bad balance" is configured? (Select 3 answers)

Question100: What command must be configured to establish a BGP connection between indirectly connected EBGP peers?

Question101: A router can be configured to run only one BGP routing process.

Question102: Which session is established between BGP peers?

Question103: What is the default network mask length of 219.25.23.56?

Question104: Which of the following methods are supported by OSPF for delivering default routes? (Select 3 answers)

Question105: Which of the following statements regarding the MED attribute are true? (Select 3 answers)

Question106: Based on BGP route selection rules, how are Origin attributes listed in descending order of priority?

Question107: Which statements regarding BGP route advertisement are true? (Select 2 answers)

Question108: Based on BGP route selection rules, the route with the lowest local preference is preferred.

Question109: Which of the following LSAs are flooded within a single area? (Select 3 answers)

Question110: Which of the following statements is false?

Question111: Given a Class B network 155.16.0.0 with the mask 255.255.255.192, what is the maximum number of subnets that can be created, and what is the maximum number of hosts available within each created subnet?

Question112: The import-route limit" command is used to set a maximum number of imported routes that can be imported into an OSPF routing process.

Question113: On a broadcast network or an NBMA network, not all neighbors need to set up adjacencies with each other. Therefore, the concept of establishing adjacency is applicable only to the broadcast network or the NBMA network.

Question114: What does an IP address of 0.0.0.0 indicate?

Question115: Which of the following statements regarding the IP address 224.0.0.1 are correct? (Select 2 answers)

Question116: Which is the origin attribute of the BGP routes redistributed using the import-route command?

Question117: If the subnet mask for Class A address is 255.255.240.0, how many bits are used for subnetting?

Question118: Which statements regarding the range of AS number are true? (Select 3 answers)

Question119: Which of the following statements regarding stub areas is false?

Question120: What are the functions of an IGMFV2 Query message? (Select 3 answers)

Question121: Generally, the performance of an IP-prefix-filter is greater than that of an ACL.

Question122: The ABR in a Totally Stubby area will not advertise Type-3, Type-4, and Type-5 LSAs into the Totally Stubby area. Instead, the ABR will advertise a default route to the Totally Stubby area enabling packet forwarding to other destinations.

Question123: Which of the following multicast protocols can generate multicast distribution trees?

Question124: Which of the following statements about a neighbor state machine is true?

Question125: Which of the following subnet masks can be used to divide a Class C network into 5 subnets, with each subnet containing a maximum of 20 hosts?

Question126: To which attribute type does the BGP AS-Path attribute belong?

Question127: Which methods can be used to import local routes into BGP? (Select 2 answers)

Question128: In which of the following states do BGP peers refuse to initiate or accept connection requests?

Question129: RTA and RTB are interconnected through a FE interface in an OSPF area. Which of the following can be used to configure the link cost between RTA and RTB as 10? (Select 2 answers)

Question130: The process of determining the shortest path can be divided into two phases: determine transit node first, and then determine the stub network.

Question131: How does an IGMP router maintain group memberships on a network? (Select 2 answers)

Question132: The BGP community attribute is a well-known mandatory attribute.

Question133: What are the differences between the IGMP versions 1, 2 & 3? (Select 2 answers)

Question134: Which of the following routers have multicast routing entries even when there is no receiver on the network? (Select 2 answers)

Question135: Assume that the subnet mask is 255.255.255.248. Which of the following are valid host addresses? (Select
3 answers)

Question136: When a routing protocol import routes discovered by other routing protocols, it must import only the routes that meet the conditions and set attributes for the imported routes. In such a case, a route-policy can be created.

Question137: Routes 172.1.12.0/24, 172.1.13.0/24, 172.1.14.0/24, and 172.1.15.0/24 can be summarized into route
172.1.8.0/21.

Question138: Which of the following routes match the ACL filter given below? (Select 2 answers)
"acl number 2001
rule 0 permit source 1.1.1.0 0.0.254.255"

Question139: Only Router-LSAs and Network-LSAs are involved in intra-area route calculations.

Question140: The router ID which is configured in the system view takes precedence over the router ID configured in the BGP view.

Question141: Which of the following connection types can a Router LSA describe? (Select 3 answers)

Question142: What is the maximum number of bits that can be used for creating subnets, when the network address is a Class B address?

Question143: Which of the following statements regarding the features of VLSM are true? (Select 2 answers)

Question144: Route filtering can filter not only routing information but also link-state information.

Question145: Which types of packets are supported by BGP? (Select 3 answers)

Question146: Which of the following statements are correct regarding OSPF intra-area route calculation? (Select 2 answers)

Question147: Which of the following describes the relationship between BGP and AS?

Question148: Which of the following BGP attributes cannot be advertised to other neighboring AS?

Question149: Which of following BGP attributes is used to define a set of prefixes with same properties?

Question150: <Quidway>dis igmp group verbose
IGMP interface group report information
Ethernet6/1/0(10.1.1.1):
Total 1 IGMP Group reported
Group: 225.0.0.1
Uptime: 00:09:03
Expires: 00:02:09
Last reporter: 10.1.1.30
Last-member-query-counter: 0
Last-member-query -timer-expiry: off
Group mode: exclude
Versionl-host-present-timer-expiry: off
Version2-host-present-timer-expiry: 00:02:09
The preceding information is generated after a router receives a Report message from group 225.0.0.1 through Ethernet 6/1/0. Which type of Report message will not be processed by the router?

Question151: Which of the following statements regarding multicast MAC addresses are true (Select 3 answers)

Question152: Which of the following problems can be solved by IGMP Snooping?

Question153: Which statements about OSPF packets are true? (Select 3 answers)

Question154: Which of the following statements regarding NSSA commands is false?

Question155: One route-policy may have several nodes with each node containing a node ID. Each node may also have multiple "if-match" and "apply" clauses. Which of the following statements are true? (Select 2 answers)

Question156: The route selection tool route-policy" can set and filter BGP attributes based on pre-defined conditions.
Therefore, this tool is often used to define policies towards a BGP peer or during route generation.

Question157: A OSPF network may be structured, or subdivided into routing areas. Such routing areas are a set of network segments.

Question158: What does the IP-prefix-filter "ip ip-prefix test index 10 deny 0.0.0.0 0 less-equal 32" mean?

Question159: A company has four departments. Department A has SO PCs, Departments B and C both have 20 PCs, and Department D has 30 PCs. Assuming the IP address 192.168.1.0/x is used, which of the following statements are true if the VLSM technology is employed for subnetting? (Select 2 answers)

Question160: Which of the following commands is used to display check information about the IGMP enabled interface?

Question161: How many multicast IP addresses can be represented by an IP multicast MAC address?

Question162: Why is BGP run by core routers in transit AS?

Question163: Which type of BGP route can be added to the BGP routing table?

Question164: Which of these statements is false when using the import-route command to import routes into BGP?

Question165: A failure in establishing a BGP connection can be addressed by checking the TCP connectivity and BGP peer configurations.

Question166: Which of the following statements regarding RPs are true? (Select 3 answers)

Question167: BGP is an exterior gateway protocol which runs between ASs. It focuses on the control of route propagation and selection of optimal routes rather than discovery and calculation of routes.

Question168: An Autonomous System (AS) is a set of routers under the control of one technical administration that presents a common routing policy.

Question169: What is the maximum number of bits that can be used for subnetting, when the netork address is a Class C address?

Question170: In VRP, by default, a BGP router does not automatically send a refresh packet to its BGP peers for retransmitting an Update packet after the inbound routing policy of the BGP peers changes.

Question171: We can prevent a router from ever becoming a DR or BDR by configuring an OSPF Priority of zero,

Question172: Which of these is a valid VLSM subnet obtained by subnetting the network address 172.29.100.0/16?

Question173: Which of the following statements belong to BGP community attribute? (Select 3 answers)

Question174: Route importing can be used when multiple routing protocols run on different networks and these networks need to share routing information.

Question175: Which type of message is periodically exchanged between BGP peers to keep the BGP connection alive?

Question176: Which of these addresses are reserved for use by multicast applications?

Question177: Which of the following statements are true? (Select 3 answers)

Question178: The default-route originate command in the RIP protocol advertises a default RIP route to the peers. When using this command, which of the following attributes can be set for the default route?

Question179: Assume that the following commands are run to configure BGP
timer keepalive 30 hold 90
peer 1.1.1.2 timer keepalive 10 hold 30
Which statements regarding the configuration are true? (Select 2 answers)

Question180: Which of the following IP addresses are network addresses? (Select 2 answers)

Question181: What is the default LOCAL_PREF and PREFERRED-VALUE assigned to routes in a VRP system?

Question182: Which of the following tools cannot be used for route filtering?

Question183: Which of the following attributes must exist in the BGP update messages? (Select 3 answers)

Question184: IGMP interface group report information
Ethernet6/l/l(40.1.1.1):
Total 1 IGMP Group reported
Group: 232.0.0.1
Uptime: 00:00:22
Expires: off
Last reporter: 40.1.1.3
Last-member-query-counter: 0
Last-member-query-timer-expiry: off
Group mode: include
Versionl-host-present-timer-expiry: off
Version2-host-present-timer-expiry: off
Source list:
Source: 20.1.1.56
Uptime: 00:00:22
Expires: 00:05:08
Last-member-query-counter: 3
Last-member-query-timer-expiry: 00:00:01
Source: 20.1.1.57
Uptime: 00:00:22
Expires: 00:00:17
Last-member-query-counter: 3
Last-member-query-timer-expiry: 00:00:01
The preceding information shows the entry status of an IGMP interface on Ethernet 6/1/1 on a router.
Assume IGMP sends the group-and-source-specific Query message. Which of the following statements is true?

Question185: An IP address 192.168.13.175 with the subnet mask 255.255.255.240 can be assigned to a device.

Question186: Which port number is used by BGP to establish a TCP connection?

Question187: What is the link-state ID of an ASBR-Summary-LSA?

Question188: Which of the following are multicast routing protocols? (Select 3 answers)

Question189: Which of the following concepts should a network administrator know while using VLSM technology for subnetting? (Select 3 answers)

Question190: Which of the following are OSPF message types? (Select 4 answers)

Question191: Which of the following is a private AS number?

Question192: Which of the following situations will occur when the command "multicast bad balance" is configured? (Select 3 answers)

Question193: What is the network address for the IP address 190.233.27.13/16?

Question194: What is the function of well-known community attribute NO_EXPORT_SUBCONFED in BGP?

Question195: OSPF directly runs over the IP protocol as protocol number 89.

Question196: The bandwidth-reference parameter is measured in Mbit/s.

Question197: Which of the following routing protocols support import-route? (Select 3 answers)

Question198: The unicast and multicast technologies are both outstanding in solving the problem of "single source, multiple destinations" in order to allow efficient P2MP data transmission.

Question199: The vlink-peer command is used to specify a peer IP address for setting up a virtual link.

Question200: Which of the following statements is false?

Question201: Which of the following protocols support default route advertisement? (Select 3 answers)

Question202: Which of the fallowings are OSPF packet types? (Select 3 answers)

Question203: Which statements regarding BGP well-known mandatory attributes are true? (Select 3 answers)

Question204: If the default-route-advertise command is used to advertise a default BGP route to peers, how will this operation affect the local BGP routing table?

Question205: Which parameters are carried in a BGPOpen message? (Select 3 answers)

Question206: In OSPF protocol, Different types of networks cannot establish an adjacency with each other in the Full state.

Question207: Default routes between routers are a low-cost solution because they are easy to configure and requires less system resources when compared with maintaining a complete routing table.

Question208: In VRP, by default, the routes injected into the BGP are not automatically summarize:

Question209: Whenever changes occur in the BGP routing table, a BGP Speaker advertises all the optimal routes in the BGP routing table to its peers.

Question210: Each router running OSPF has a router ID which is a 32-bit integer to uniquely identify a router. Therefore, the router IDs must be different even if the routers are in different ASs.

Question211: If the value of hold timers in the Open messages sent by Peer A and Peer B are 180s and 90s respectively, then what is the interval at which the Keepalive messages are sent after a BGP connection is established between these two peers?

Question212: What are the advantages of subnetting? (Select 2 answers)

Question213: A company has four departments. Department A has 80 PCs, Departments B and C both have 20 PCs, and Department D has 30 PCs. Assuming the IP address 192.168.1.0/x is used, which of the following statements are true if the VLSM technology is employed for subnetting? (Select 2 answers)

Question214: The Internet Group Management Protocol (IGMP) runs between hosts and their immediately neighboring multicast routers.

Question215: How many Class C networks does the summarized route 192.168.134.0/22 cover?

Question216: Which of the following messages exist only in PIM-SM? (Select 2 answers)

Question217: For link-state routing protocols, filtering inbound routes cannot block the transmission of link-state information. The filtering effect means that routes cannot be injected into the local routing table but neighbors can still receive complete route state information and calculate complete routes.

Question218: Which of the following are well-known communities attributes? (Select 3 answers)

Question219: Which of the following route prefixes match the IP-prefix-filter given below?
"ip ip-prefix test index 10 permit 10.0.0.0 16 greater-equal 24 less-equal 28" (Select 3 answers)

Question220: IGP routes can be installed into the BGP routing table by running either the network or import-route command.

Question221: A Router ID is optional in the OSPF configuration.

Question222: Which of the following route entries matches ACL 2001 that is defined below?
1.0.0.0/8,1.2.0.0/16,1.2.3.0/24,1.2.4.0/24,1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24 ACL 2001
Basic ACL 2001,1 rule
Ad's step is 5
rule 0 permit source 1.2.0.0 0.0.254.255

Question223: Based on BGP route selection rules, the route with the lowest multi-exit discriminator (MED) is preferred.