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Cisco 640-911Introducing Cisco Data Center NetworkingVersion: 5.0Cisco 640-911 ExamQ1Which two networking devices operate at Layer 1 of the OSI model? (Choose two.)A. repeaterB. bridgeC. switchD. routerE. hubAnswer: A,EExplanation:QUESTION NO: 2Which two networking devices forward data based on destination MAC address? (Choose two.)A. repeaterB. bridgeC. switchD. routerE. hubAnswer: B,CExplanation:QUESTION NO: 3Which two network topologies are the most popular in switching? (Choose two.)A. busB. token passing busC. starD. extended starE. ringAnswer: C,DExplanation:"Pass Any Exam. Any Time." - www.actualtests.com 2 Cisco 640-911 ExamQUESTION NO: 4Which device would you select to partition a network into VLANs?A. repeaterB. bridgeC. switchD. routerE. hubAnswer: CExplanation:QUESTION NO: 5At which layer of the OSI model does TCP operate?A. 1B. 2C. 3D. 4E. 5Answer: DExplanation:QUESTION NO: 6Which two layers of the OSI model relate to the transmission of bits over the wire and packet forwarding based on destination IP address? (Choose two.)A. 1B. 2C. 3D. 4E. 5Answer: A,CExplanation:"Pass Any Exam. Any Time." - www.actualtests.com 3 Cisco 640-911 ExamQUESTION NO: 7Which layer of the OSI model is associated with the reliable transmission of datagrams?A. datagramB. routingC. networkD. data linkE. transportF. transmissionG. sessionAnswer: EExplanation:QUESTION NO: 8Which three terms are used to describe data at Layers 1, 2, and 4 of the OSI model? (Choose three.)A. PDUsB. bitsC. sequencesD. segmentsE. packetsF. framesAnswer: B,D,FExplanation:QUESTION NO: 9Which two layers of the OSI model are combined in the Internet protocol suite application layer? (Choose two.)A. 2B. 3C. 4"Pass Any Exam. Any Time." - www.actualtests.com 4 Cisco 640-911 ExamD. 5E. 6F. 7Answer: D,EExplanation:Q2Which two layers of the OSI model are combined in the Internet protocol suite network access layer? (Choose two.)A. 1B. 2C. 3D. 4E. 5F. 6G. 7Answer: A,BExplanation:Q3In an IEEE 802.3 Ethernet frame, what is the significance of the DSAP field?A. The DSAP field specifies the TCP or UDP port that is associated with the transport protocol.B. The DSAP field is only used on United States Department of Defense networks to indicate the information classification level.C. The DSAP field is only used in Ethernet II frames.D. The DSAP field indicates the network layer protocol.Answer: DExplanation:Q4Which field in an Ethernet II frame performs the same function as the DSAP field in an 802.3"Pass Any Exam. Any Time." - www.actualtests.com 5 Cisco 640-911 ExamEthernet frame?A. start of frameB. EtherTypeC. frame check sequenceD. Subnetwork Access ProtocolE. Logical Link ControlAnswer: BExplanation:Q5What are two features of a bridge? (Choose two.)A. reliable transmissionB. operate at OSI Layer 2C. operate at OSI Layer 3D. create multiple broadcast domainsE. create multiple collision domainsF. flood input packets to all portsG. drop IP packets with invalid destination portsAnswer: B,EExplanation:Q6What are three reasons that switches supersede bridges? (Choose three.)A. Smaller frame buffers decrease latency.B. Forward, filter, or flood frames.C. Multiple simultaneous communications between ports.D. Larger inspection engine allows for higher throughput.E. Switches have many ports.Answer: B,C,EExplanation:"Pass Any Exam. Any Time." - www.actualtests.com 6 Cisco 640-911 ExamQ7What action does a switch take if the destination MAC address is unknown?A. discard frameB. send ICMP unreachable message to sourceC. flood packet on all portsD. compare destination IP address against an ACL to determine if it is permittedE. send gratuitous ARP on all ports and wait for reply before forwardingAnswer: CExplanation:Q8Which statement describes the purpose of the MAC address forwarding table of a switch?A. The switch consults the forwarding table to determine the best route to a destination.B. The switch consults the forwarding table to determine the output port.C. The switch consults the forwarding table to determine if the packet is routable.D. The switch consults the forwarding table to determine if access control permits the packet.Answer: BExplanation:Q9What are two attributes of a VLAN? (Choose two.)A. A VLAN defines a collision domain.B. A VLAN defines a broadcast domain.C. Broadcasts are flooded to all VLANs.D. Collisions are flooded to all VLANs.E. A Layer 3 device is required to route packets between VLANs.F. A Layer 2 device is required to route packets between VLANs.Answer: B,EExplanation:"Pass Any Exam. Any Time." - www.actualtests.com 7 Cisco 640-911 ExamQ10Which four statements indicate unique properties of VLAN 1 on Cisco Nexus switches? (Choose four.)A. VLAN 1 is used to flood multicast traffic.B. VLAN 1 cannot be deleted.C. VLAN 1 is used for Cisco Discovery Protocol.D. VLAN 1 is used for VTP advertisements.E. VLAN 1 defines a collision domain.F. VLAN 1 defines a broadcast domain.Answer: B,C,D,FExplanation:Q11Which command displays the Trunking Native Mode VLAN on port Ethernet 1/18?A. show running-config switchport e1/18B. show running-config e1/18 switchportC. show interface e1/18D. show interface e1/18 switchportE. show interface e1/18 nativeAnswer: DExplanation:QUESTION NO: 20Which VTP mode disallows the creation of local VLANs?A. transparentB. tunnelingC. serverD. clientE. offF. nativeAnswer: D"Pass Any Exam. Any Time." - www.actualtests.com 8 Cisco 640-911 ExamExplanation:QUESTION NO: 21Which three statements are true concerning RFC 1918 IP addresses? (Choose three.)A. They are globally routable.B. They are not globally routable.C. They must not be filtered at Internet border interfaces. D. They should be filtered at Internet border interfaces. E. They include 10.0.0.0/8, 172.16.0.0/16, and 192.168.1.0/24. F. They include 10.0.0.0/8, 172.16.0.0/21, and 192.168.0.0/16.Answer: B,D,FExplanation:QUESTION NO: 22Which two statements describe the purpose of RFC 1918? (Choose two.)A. Establish a range of IP addresses that are dedicated to the growing use of multicast video. B. Establish a range of IP addresses that are dedicated to the growing use of peer-to-peer file- sharing applications.C. Establish a range of IP addresses that are dedicated to use on internal networks. D. Establish a range of IP addresses to address the shrinking pool of globally routable addresses.E. Delay the transition to IPv6.Answer: C,DExplanation:QUESTION NO: 23What are three reasons to migrate from IPv4 to IPv6? (Choose three.)A. IPv6 eliminates the requirement for NAT.B. IPv6 includes enough IP addresses to allocate more than four billion IP addresses to every person on earth.C. IPv6 eliminates the need for VLANs."Pass Any Exam. Any Time." - www.actualtests.com 9 Cisco 640-911 ExamD. Hosts can be assigned an IP address without DHCP. E. Hosts can be assigned an IP address without DNS.Answer: A,B,DExplanation:QUESTION NO: 24Which two options describe services that are provided by TCP? (Choose two.)A. session multiplexingB. EtherTypes identify destination servicesC. connection-orientedD. best-effort packet deliveryE. binary translationAnswer: A,CExplanation:QUESTION NO: 25Which two options describe services that are provided by UDP? (Choose two.)A. session multiplexingB. segmentationC. connection-orientedD. reliable packet deliveryE. best-effort packet deliveryAnswer: A,EExplanation:QUESTION NO: 26Which two options represent a subnet mask that allows for a maximum of 14 available host addresses on a subnet? (Choose two.)A. 255.255.255.240"Pass Any Exam. Any Time." - www.actualtests.com 10 Cisco 640-911 ExamB. 255.255.255.192C. 255.255.240.0D. 255.255.192.0E. /14F. /21G. /26H. /28Answer: A,HExplanation:QUESTION NO: 27What is the binary value of the hexadecimal number 0x511?A. 10100011001B. 10101010101 511 8 4 2 1C. 10110010001 5-8=0 1 1-2=0, 1-1=1 = 0101D. 10100010001E. 10100110011Answer: DExplanation:QUESTION NO: 28What is the binary value of the decimal number 1263?A. 11011101101B. 10011101111C. 10011101011D. 11010001111E. 10111101111Answer: BExplanation:QUESTION NO: 29"Pass Any Exam. Any Time." - www.actualtests.com 11 Cisco 640-911 ExamWhich option is an example of a distance vector routing protocol?A. RIPB. OSPFC. ARPD. IS-ISAnswer: AExplanation:QUESTION NO: 30Which option is an example of an advanced distance vector routing protocol?A. EIGRPB. RIPC. OSPFD. ARPAnswer: AExplanation:QUESTION NO: 31Which option is an example of a link-state routing protocol?A. EIGRPB. RIPC. OSPFD. ARPAnswer: CExplanation:QUESTION NO: 32What is the maximum allowable hop count for RIPv1?"Pass Any Exam. Any Time." - www.actualtests.com 12 Cisco 640-911 ExamA. 4B. 8C. 12D. 15E. 16Answer: DExplanation:QUESTION NO: 33What is the default periodic interval at which RIPv1 sends routing updates?A. 15 secondsB. 30 secondsC. 45 secondsD. 60 secondsE. 90 secondsF. RIPv1 only sends routing updates when the topology changes.Answer: BExplanation:QUESTION NO: 34What does RIPv1 send to its neighbors?A. information about changed routesB. information about new routesC. the entire routing tableD. information about deleted routesAnswer: CExplanation:QUESTION NO: 35What are two advantages of employing an external router for inter-VLAN routing over an IEEE 802.1Q trunk link? (Choose two.)"Pass Any Exam. Any Time." - www.actualtests.com 13 Cisco 640-911 ExamA. Layer 3 functionality is not required on the switch. B. The router facilitates communication between VLANs.C. The single traffic path is optimized.D. Latency is reduced as packets leave the switch.E. Equal-Cost Multipath is supported.Answer: A,BExplanation:QUESTION NO: 36Which statement correctly describes an SVI?A. An SVI is a Layer 2 interface and uses a dynamic MAC address. B. An SVI cannot have an IP address assigned to it. C. An SVI provides Layer 3 routing between VLANs.D. Each switch port requires an SVI assignment.Answer: CExplanation:QUESTION NO: 37What is the Cisco Nexus Operating System command to define a por

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