Brocade Certified Network Professional 2012 Practice Questions For Exam

Transcription

1 Brocade Certified Network Professional 2012 Practice Questions For Exam

2 Section 1 1) You are configuring your network to ensure VoIP traffic is always serviced before any other type of traffic. Which congestion avoidance algorithm must you use to accomplish this? A) Random Early Discard (RED) B) Strict priority traffic scheduling C) Weighted Random Early Discard (WRED) D) Mixed strict priority and weight-based traffic scheduling 2) You are configuring QoS in your network. What are two purposes of the Excess Information Rate (EIR)? (Choose two.) A) Traffic is initially policed by a Committed Information Rate (CIR) bucket and then the EIR. B) Traffic is initially policed by the EIR bucket then the CIR bucket. C) The CIR defines the amount of traffic guaranteed by the QoS policy. D) The EIR defines the amount of burst traffic guaranteed by the QoS policy. 3) You are configuring the network for an application that requires QoS at Layer 2. Which QoS field in the header should be used? A) DiffServ Code Point (DSCP) B) 802.1p Priority Code Points C) Traffic Class D) EXP field or experimental bits 4) When configuring QoS, in which two ways will priority be forced? (Choose two.) A) globally B) on the ingress physical port C) in a route statement D) on an ACL match Section 2 5) You are deploying 802.1x authentication to all your company's devices and edge switches. A visitor connects their non-802.1x enabled device to your network. What will happen? A) The switch will authenticate the device as a guest and place it in the quarantine VLAN. B) The switch will deny access to the client. C) The switch will deny access and send an alert to the administrator. D) The switch will authenticate the device and send an alert to the administrator.

3 Section 3 6) You have a router that you want to become an OSPF DR. All routers in the area are currently set at the default values. How would you ensure the router becomes the DR? A) Set the router priority to 0. B) Set the router priority to 255. C) Set the router ID to 0. D) Set the router ID to ) You have configured a new router's OSPF priority to become the designated router for one of its directly connected networks. Two other routers in the same network have already been configured and have formed adjacencies. Which two statements are correct when the new router is connected? (Choose two.) A) A new DR/BDR election will take place and the new router will become DR. B) The new router will become the BDR. C) The new router will become a DROTHER. D) No new election will take place unless either DR/BDR fails 8) Which LSA is generated when an area only requires a gateway to routes outside the autonomous system? A) External LSA B) ASBR-Summary LSA C) Summary LSA D) Router LSA 9) Brocade#sho ip ospf database link-state router Area ID Type LS ID Adv Rtr Seq(Hex) Age Cksum 0 Rtr x2d01 LSA Header: options: 0x02, seq-nbr: 0x , length: 48, flags:0x0100 link id = , link data = , type = transit(2) link id = , link data = , type = stub(3) Area ID Type LS ID Adv Rtr Seq(Hex) Age Cksum 0 Rtr xd173 LSA Header: options: 0x02, seq-nbr: 0x , length: 48, flags:0x0000 link id = , link data = , type = stub(3) link id = , link data = , type = transit(2) Area ID Type LS ID Adv Rtr Seq(Hex) Age Cksum 0 Rtr a 738 0x96e3 LSA Header: options: 0x02, seq-nbr: 0x a, length: 60, flags:0x0100 link id = , link data = , type = transit(2) link id = , link data = , type = transit(2) link id = , link data = , type = stub(3) Referring to the command output, which statement is true? A) All routers in area 0 have a router ID manually configured. B) All routers in area 0 are advertising their loopback into OSPF. C) All routers in area 0 are redistributing connected interfaces into OSPF. D) This output is from an ABR router.

4 10) You want to implement OSPF MD5 authentication between two routers. You configure the MD5 password on the first router. How much time do you have left to configure the adjacent router before adjacency drops? A) 3 minutes B) 5 minutes C) 8 minutes D) 10 minutes 11) Referring to the exhibit, which two routers would be ABRs? (Choose two.) A) R1 B) R2 C) R3 D) R4 Section 4 12) Brocade#sh ip bgp summary BGP4 Summary Router ID: Local AS Number : 100 Maximum Number of Paths Supported for Load Sharing : 1 Number of Neighbors Configured : 1 Neighbor Address AS#State Time RtRecv RtAcpt RtSent RtToSend ACTIV 0h0m15s Referring to the command output, which two statements are true? (Choose two.) A) This is an IBGP neighbor connection. B) The peering connection has not completed successfully. C) The peering connection has completed successfully. D) This is an EBGP neighbor connection.

5 13) Router1#sh ip bgp Total number of BGP Routes: 4 Status codes: s suppressed, d damped, h history, *valid, >best, i internal Origin codes: i - IGP, e - EGP,? - incomplete Network Next Hop Metric LocPrf Weight Path / i / i / i / i Referring to the command output, which route will be installed in the IP routing table? A) the route with Next Hop address B) the route with Next Hop address C) the route with Next Hop address D) the route with Next Hop address Section 5 14) In the exhibit, you have a router that has two connections to another router. You want to load balance across BGP interfaces. Which BGP routing configuration step is required? A) Set the neighbor EGBP multipath value. B) Set the neighbor EGBP maximum path value. C) Set the multipath value. D) Set the maximum number of paths. 15) When IPv6 is configured on a Brocade switch, what is the throughput rate compared to IPv4? A) full line rate B) half line rate C) quarter line rate D) double line rate 16) A client has been monitoring the network and has observed excessive multicast traffic on many of the subnets on the PIM-DM enabled network. Why would changing to PIM Sparse mode reduce multicast traffic on this network? A) Passive Multicast Route Insertion creates an entry for a multicast route with no directly attached clients. B) A Brocade device always forwards multicast traffic to PIM sparse routers. C) The PIM Sparse router proxy receives a join request on behalf of the transmitter. D) The PIM Sparse router proxy sends a join request on behalf of the receiver.

6 17) Router A interface ethernet 1 ip address ip vrrp vrid 1 owner track-priority 20 track-port e 14 ip-address activate Referring to the output, if port E 14 were to go down on Router A, how would this affect VRID 1? A) VRID 1 backup priority would become 254. B) VRID 1 backup priority would become 235. C) VRID 1 backup priority would become 100. D) VRID 1 backup priority would become ) In VRRP-E how are hello packets sent? A) Hello packets are encapsulated in TCP port 8888 and sent to multicast address B) Hello packets are encapsulated in UDP port 8888 and sent to multicast address C) Hello packets are encapsulated in TCP port 8888 and sent to multicast address D) Hello packets are encapsulated in UDP port 8888 and sent to multicast address Section 6 19) Users often connect devices to your network without telling you. You want to prevent spanning tree participation between your network and user devices. Which feature prevents user devices from participating? A) Root Guard on the production network port B) port loop detection on the network port C) topology groups on the production network D) BPDU Guard on the production network port 20) Your upcoming expansion plan requires more VLANs. Your switch infrastructure will not support enough STP instances to permit one per VLAN in the new design. Which technology will resolve this problem? A) MSTP B) PVSTP C) L2TP D) Topology Groups 21) You are configuring MCT on a Brocade switch and want to protect against loops. What needs to be configured? A) Enable STP within the MCT environment. B) Configure port loop detection within the MCT environment. C) Configure private VLANs for MCT traffic. D) Enable admin point-to-point links in the MCT environment.

7 22) Your new VoIP phones need to share Brocade FastIron edge ports with the workstations in your environment. What must you do to accommodate your new phones? A) Configure access ports for Dual-Mode operation and only tag the voice VLAN. B) Remove the access ports from their current VLANs and place them all into a new voice VLAN. C) Change the VLAN settings on your access ports to make them all VLAN trunks. D) Configure access ports for Dual-Mode operation and tag both VLANs. Section 7 23) You had to modify a route-map in your BGP configuration, and afterwards you executed the command clear ip bgp neighbor all. Your service provider immediately called to complain that your actions have caused routes to flap throughout the service provider core. You must ensure that this does not happen the next time you need to implement BGP policy changes. Which feature should you use instead? A) route update B) route reconfiguration C) route refresh D) route redistribution 24) You have installed a new 2 x 100 GbE interface module into a Brocade MLXe. The first port is functional, however, the second port on the module is not functional. What would cause the second port from functioning? A) The incorrect version of software is installed on the interface module. B) An additional license is required to activate the second port. C) There is insufficient power to operate the second port. D) The module can only support one operational port at a time. 25) On your sflow collector, you notice that the source address from your Brocade MLXe router is not what you expected. What is the first address that sflow will use as a source address from the router? A) the router ID B) the IP address of the lowest numbered ve interface C) the IP address of the lowest numbered physical interface D) the IP address with the best route 26) You are configuring a router for use as an OSPF ABR router. When configured, you issue the show ip ospf neighbor command. You see the router remains in EXSTART. Which two statements are correct? (Choose two.) A) There is a failed Ethernet port on the router. B) There is a bad physical link between routers. C) The neighbor does not have a matching MTU size. D) Both routers have the same router ID.

8 27) You install a new Brocade FastIron switch on a network. You configure each VLAN to run RSTP. One VLAN has reverted to STP. What has occurred? A) STP BPDU is detected on that port. B) 802.1q port trunking is detected on that port. C) BPDU Guard is enabled on that port. D) LLDP auto detection is enabled on that port. 28) You have deployed Brocade FastIrons for several years in a Power Over Ethernet (PoE) implementation. You computed the power budget for each switch, and determined that there would be 15.4 watts of power available for each active PoE port with just one power supply in operation. You configured each PoE port to Class 4. You recently installed new IP phones that use the updated PoE+ standard. A power supply then failed in one of the switches, and several phones lost power. What will resolve this problem? A) Configure the PoE ports' inline power power-by-class to 2. B) Configure the PoE ports' inline power power-limit to C) Configure the PoE ports' inline power power-limit to D) Configure the PoE ports' inline power priority to 2.