Test
Cisco 640-911 Exam
Preguntas del test (72)
1Which two networking devices operate at Layer 1 of the OSI Layer (Choose two)
- ARepeater
- BBridge
- CSwitch
- DRouter
- EHub
2Which two networking devices forward data based on destination MAC address?
- ARepeater
- BBridge
- CSwitch
- DRouter
- EHub
3Which two network topologies are the most popular in switching? (Choose two)
- ABus
- BToken Passing Bus
- CStar
- DExtended Star
- ERing
4Which device would you select to partition a network into VLANs
- ARepeater
- BBridge
- CSwitch
- DRouter
- EHub
5At which layer of the OSI model does TCP operate?
- ALayer 1
- BLayer 2
- CLayer 3
- DLayer 4
- ELayer 5
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)
- ALayer 1
- BLayer 2
- CLayer 3
- DLayer 4
- ELayer 5
7Which layer of the OSI model is associated with the reliable transmission of datagrams?
- ADatagram
- BRouting
- CNetwork
- DData Link
- ETransport
- FTransmission
- GSession
8Which three terms are used to describe data at Layers 1, 2, and 4 of the OSI Model?
- APDUs
- BBits
- CSequences
- DSegments
- EPackets
- FFrames
9Which two layers of the OSI model are combined in the Internet protocol suite Application Layer? (Choose two)
- ALayer 2
- BLayer 3
- CLayer 4
- DLayer 5
- ELayer 6
10In an IEEE 802.3 frame, what is the significance of the DSAP field?
- AThe DSAP field specifies the TCP or UDP port that is associated with the transport protocol.
- BThe DSAP field is only used in the United States Department of Defense.
- CThe DSAP field is only used in Ethernet II frames.
- DThe DSAP field indicates the network layer protocol.
11Which field in an Ethernet II frame performs the same function as the DSAP field in an 802.3 Ethernet frame?
- AStart of the frame
- BEther-type
- CFrame Check Sequence (FCS)
- DSubnetwork Access Protocol
- ELogical Link Control
12What are two features of a bridge? (Choose two)
- AReliable transmission
- BOperate at Layer 2
- COperate at Layer 3
- DCreate multiple broadcast domains
- ECreate multiple collision domains
- FFlood input packets to all ports
- GDrop IP packets with invalid destination ports
13Which two layers of the OSI model are combined in the Internet protocol suite network access layer?
- ALayer 1
- BLayer 2
- CLayers 3
- DLayer 4
- ELayer 5
- FLayer 6
- GLayer 7
14What are three reasons that switches supersede bridges? (Choose three)
- ASmaller frame buffers decrease latency
- BForward, filter, or flood frames
- CMultiple simultaneous communications between ports
- DLarger inspection engine allows for higher throughput
- ESwitches have many ports
15Which action does a switch take if the destination MAC address is unknown?
- ADiscard frame
- BSend ICMP unreachable message to source
- CFlood packet on all ports
- DCompare destination IP address against an ACL to determine if it is permitted
- ESend gratuitous ARP on all ports and wait for reply before forwarding.
16Which statement describes the purpose of the MAC address forwarding table of a switch?
- AThe switch consults the forwarding table to determine the best route to a destination.
- BThe switch consults the forwarding table to determine the output port.
- CThe switch consults the forwarding table to determine if the packet is routable.
- DThe switch consults the forwarding table to determine if access control permits the packet.
17What are two attributes of a VLAN?
- AA VLAN defines a collision domain.
- BA VLAN defines a broadcast domain.
- CBroadcast are flooded to all VLANs.
- DCollision are flooded to all VLANs.
- EA Layer 3 device is required to route packets between VLANs.
- FA Layer 2 device is required to route packets between VLANs.
18Which four statements indicate unique properties of VLAN 1 on Cisco Nexus switches? (Choose four)
- AVLAN 1 is used to flood multicast traffic
- BVLAN 1 cannot be deleted.
- CVLAN 1 is used for Cisco Discovery Protocol.
- DVLAN 1 is used for VTP advertisements.
- EVLAN 1 defines a collision domain.
- FVLAN 1 defines a broadcast domain.
19Which command displays the Trunking Native Mode VLAN on port Ethernet 1/18?
- Ashow running-config switchport e1/18
- Bshow running-config e1/18 switchport
- Cshow interface e1/18
- Dshow interface e1/18 switchport
- Eshow interface e1/18 native
20Which VTP mode disallows the creation of local VLANs?
- Atransparent
- Btunneling
- Cserver
- Dclient
- Eoff
- Fnative
21Which three statements are true concerning RFC 1918 IP addresses (Choose three)
- AThey are globally routable.
- BThey are not globally routable.
- CThey must not be filtered at the Internet border interfaces
- DThey should be filtered at the internet border interfaces
- EThey include 10.0.0.0/8, 172.16.0.0/16, 192.168.1.0/24
- FThey include 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16
22Which two statements describe the purpose of RFC 1918? (Choose two)
- AEstablish a range of IP addresses that are dedicated to the growing use of multicast video.
- BEstablish a range if IP addresses that are dedicated to the growing use of peer to peer file-sharing applications.
- CEstablish a range of IP addresses that are dedicated to use on internal networks
- DEstablish a range of IP addresses to address the shrinking pool of globally routable addresses.
23What three reasons to migrate from IPv4 to IPv6? (Choose three)
- AIPv6 eliminates the requirement for NAT
- BIPv6 includes enough IP addresses to allocate more than four billion IP addresses to every person on earth.
- CIPv6 eliminates the need for VLANs
- DHosts can be assigned an IP address without DHCP
- EHosts can be assigned an IP address without DNS.
24Which two options describe services that are provided by TCP? (Choose two)
- ASession multiplexing
- BEther Types identify destination services
- CConnection-oriented
- Dbest-effort packet delivery
- Ebinary translation.
25Which two options describe services that are provided by UDP ? (Choose two)
- ASession multiplexing
- BSegmentation
- CConnection-oriented
- Dbest-effort packet delivery
26Which two options represent a subnet mask that allows for a maximum of 14 available host addresses on a subnet? (Choose two)
- A255.255.255.240
- B255.255.255.192
- C255.255.240.0
- D255.255.192.0
- E/14
- F/21
- G/26
- H/28
27What is the binary value of the hexadecimal number 0x511
- A10100011001
- B10101010101
- C10110010001
- D10100010001
- E10100110011
28What is the binary value of the decimal number 1263
- A11011101101
- B10011101111
- C10011101011
- D1101000111
- E1011110111
29Which option is an example of an advanced distance vector routing protocol?
- AEIGRP
- BRIP
- COSPF
- DARP
30Which option is an example of a distance vector routing protocol?
- ARIP
- BOSPF
- CARP
- DIS-IS
31Which option is an example of a link-state protocol
- AEIGRP
- BRIP
- COSPF
- DARP
32What is the maximum allowable hop count for RIPv1?
- A4
- B8
- C12
- D15
- E16
33What is the default periodic interval at Ribv1 sends routing updates?
- A15 seconds
- B30 seconds
- C45 seconds
- D60 seconds
- E90 seconds
- FRIPv1 only sends routing updates when the topology changes
34What does RIPv1 send to its neighbors?
- AInformation about changed routes
- Binformation about new routes
- CThe entire routing table.
- DInformation about deleted routes.
35What are two advantages of employing an external router for inter-vlan routing over an IEEE 802.1Q trunk link? (Choose two)
- ALayer 3 functionality is not required on the switch
- BThe router facilities communication between VLANs.
- CThe single traffic path is optimized.
- DLatency is reduced as packets leave the switch.
- EEqual-Cost Multipath is supported.
36Which statement correctly describes an SVI?
- AAn SVI is a Layer 2 interface and uses a dynamic MAC address.
- BAn SVI cannot have an IP address assigned to it.
- CAn SVI provides Layer 3 routing between VLANs.
- DEach switch port requires an SVI assignment.
37What is the Cisco Nexus Operating system command to define a port as a layer 3
- Aswitchport
- Bno switchport
- Cl3 switchport
- Dport switching off
38Which statement is correct regarding a routed port on a multilayer switch?
- AA routed port requires a SVI definition.
- BRouted ports cannot be configured on a multilayer switch that uses SVIs.
- CA maximum of 32 routed ports can be provisioned on a given multilayer switch.
- DA routed port is a physical port that supports layer 3 routing
39On a new Cisco Nexus switch, you receive an error message when you attempt to create an SVI.
What is the first command you must use to create the SVI?- Ainterface vlan (vlan_id)
- Bvlan (vlan_id)
- Cfeature svi
- Dinterface routed
- Efeature inter-vlan
40Which command should you use to configure a Cisco Nexus switch certificationort for Layer 2 operation?
- Anexus(config-if)#switchport
- Bnetwork(config-if)# layer-2
- Cnexus(config-if)# routed
- Dnexus(config-if)#interface-vlan
41What are two core features of Cisco Nexus Operating system (Choose two)
- ASNMPv3
- BRMON
- CSystem Manager
- DPSS
- EVRF
- FTRILL
42What is the acronym expansion of the UDLD feature of Cisco Nexus Operating System?
- AUniDirectional Link Detection
- BUnified Data Link Distribution
- CUnified Data Loss Detection
- DUnified Directional Link Distribution
- EUnidirectional Data Loss Detection.
43What are four security features that are included in Cisco Nexus Operating system
- ACisco TrustSec
- BIEEE 802.1Qau
- CCoPP
- Dport security
- EPIM
- FSSL VPN
- GIPSec VPN
- HACLs
44What are three modular layer 2 processes in Cisco Nexus Operating system?
- AUDLD
- BPIM
- CHSRP
- DSTP
- ECisco Discovery Protocol (CDP)
- FOSPF
45What are three modular layer 3 processes in Cisco Nexus Operating system?
- AUDLD
- BPIM
- CHSRP
- DSTP
- ECisco Discovery Protocol
- FOSPF
46What are four security features that arae included in Cisco Nexus Operating System?
- ACisco TrustSec
- BCoPP
- CACLs
- DPort Security
- EIPsec VPN
47What are two default user roles in Cisco Operating System?
- Aadmin
- BNetwork Operator
- COperator
- DStorage Operator
- ERoot
- FSystem Manager
48On most keyboards, the up arrow and down arrow keys move through the command history. Which two key sequences can be used as alternative
- AALT+A
- BALT+F
- CALT+N
- DALT+E
- EALT+P
49What is the function of the Tab key on the Cisco Nexus Operating System command line interface?
- ARedisplays the current command line.
- Bdeletes all characters from the cursor to the end of the command line.
- CClears the terminal screen
- Dcompletes a partially entered command if enough characters are present.
- Emoves the cursor one word to the right
50where does Cisco Nexus Operating system store the running configuration file.
- ARAM
- BFlash
- Cbootflash
- DVolatile
- ENVRAM
51Where does Cisco Nexus Operating system store the startup configuration file?
- ARAM
- Bflash
- Cbootflash
- Dvolatile
- ENVRAM
52Which two commands would you use to erase the Cisco Operating System configuration and return the switch to factory defaults?
- Awrite erase boot
- Berase configuration
- Cerase running--configuration
- Derase startup-configuration
- Ereboot
- Freload
- Gshutdown
53What is the minimum required command to enter global configuration mode on a Cisco Nexus switch?
- Acon
- Bconfigure
- Cconfigure global
- Dconfigure terminal
54Which option would you use to exit the Cisco Nexus Operating System interface configuration mode and return to the exec prompt?
- ACtrl-C
- BCtrl-Z
- CCtrl-E
- Dexit
55What is the correct format of an access control list on a Cisco Nexus switch to deny unencrypted. Web traffic from any source to destination host 10.10.1.110?
- Aswitch(config)# ip access-list 101
switch(config-acl)# deny tcp any host 10.10.1.110 eq 80 - Bswitch(config)# deny tcp any host 10.10.1.110 eq 80
- Cswitch(config)# access-list 101 deny tcp any host 10.10.1.110 eq 80
switch(config)# access-list 101 permit ip any any - Dswitch(config)# ip access-list 101
switch(config-acl)# deny tcp any host 10.10.1.110 eq 80
switch(config)# access-list 101 permit ip any any
- Aswitch(config)# ip access-list 101
56What is the correct format of an access control list on a Cisco Nexus switch to deny hosts on the 172.16.1.0/21 network from accessing HTTP proxy servers listening on port 8080?
- Aswitch(config)# ip access-list 101
switch(config-acl)# deny tcp 172.16.1.0 0.0.7.255 any eq 8080
switch(config-acl)# permit ip any any - Bswitch(config)# ip access-list 101
switch(config-acl)# deny tcp any 172.16.1.0 255.255.248.0 eq 8080
switch(config-acl)# permit ip any any - Cswitch(config)# access-list 101 deny tcp 172.16.1.0 0.0.15.255 eq 8080
- Dswitch(config)# ip access-list 101
switch(config-acl)# deny tcp any host 172.16.1.0/21 eq 8080 - Eswitch(config)# ip access-list 101
switch(config-acl)# deny tcp any host 10.10.1.110 eq 21
switch(config-acl)# permit ip any any
- Aswitch(config)# ip access-list 101
57What is the correct format of an access control list on a Cisco Nexus switch to deny hosts on the 172.16.1.0/21 network from accessing HTTP proxy servers listening on port 8080?
- Aswitch(config)# ip access-list 101
switch(config-acl)# deny tcp 172.16.1.0 0.0.7.255 any eq 8080
switch(config-acl)# permit ip any any - Bswitch(config)# ip access-list 101
switch(config-acl)# deny tcp 172.16.1.255.255.248.0 any eq 8080
switch(config-acl)# permit ip any any - Cswitch(config)# access-list 101 deny tcp 172.16.1.0 0.0.15.255 eq 8080
- Dswitch(conifg)# ip access-list 101
switch(config-acl)# deny tcp any host 172.16.1.0/21 eq 8080
- Aswitch(config)# ip access-list 101
58What is the correct format of an access control list on a Cisco Nexus switch to only permit unencrypted web traffic from the 172.16.1.0./25 network to destination host 10.10.1.110?
- Aswitch(config)# ip access-list 101
switch(config-acl)# permit tcp host 172.16.1.0/25 any eq 80 - Bswitch(config)# ip access-list 101
switch(config-acl)# permit tcp 172.16.1.0 255.255.255.128 any eq 80 - Cswitch(config)# ip access-list 101
switch(config-acl)# permit tcp 172.16.1.0/25 any eq 80 - Dswitch(config)#access-list 101 permit tcp 172.16.1.0/25 0.0.0.128 eq 80
- Eswitch(conifg)# ip access-list 101
switch(config-acl)# permit tcp any 172.16.1.0 255.255.248.0 eq 80
- Aswitch(config)# ip access-list 101
59which device forwards data based on the destination IP address?
- ARepeater
- Bbridge
- Cswitch
- Drouter
- Ehub
60Which network topology is most closely associated with classical CSMA/CD?
- Abus
- Btoken passing bus
- Cstar
- DExtended star
- Ering
61Which network topology is most closely associated with FDDI
- Abus
- Btoken passing bus
- Cstar
- Dextended star
- Ering
62Which layer of the OSI model is associated with Token Ring Media Access Control
- Adatagram
- Brouting
- Cnetwork
- Ddata link
- Etransport
- Ftransmission
- Gsession
63When deploying 10BASE-2 Ethernet which type of connector is used
- AAUI
- BUTP
- CSTP
- DBNC
- ERJ-11
- FRJ-45
- GST
- HDC
64When deploying 10BASE-2 Ethernet, what is the maximum cable length?
- A100 meters
- B100 Feet
- C150 meters
- D150 feet
- E185 meters
- F185 feet
65How many IP address ranges are specified in RFC 1918
- A1 in Class A, 2 in Class B, and 4 in Class C
- B2 in Class A, 4 in Class B, and 8 in Class C
- C4 in Class A, 8 in Class B, and 16 in Class C
- D1 in Class A, 16 in Class B, and 256 in Class C
66What is required to allow devices that are using RFC 1918 addresses to communicate over the Internet?
- AA private to public VLAN ust be defined on the Internet border device
- BThe Internet firewall must permit RFC 1918 addresses.
- CVLAN translation is required on the Internet border device.
- DNetwork address translation is required on the Internet border device.
67What is the addressing format of IPv6?
- A48-bit dotted decimal
- B48-bit colon-delimited hexadecimal
- C64-bit colon-delimited hexadecimal.
- D128-bit dotted decimal
- E128-bit colon-delimited hexadecimal
68Which statement describes the function of the OSI transport layer?
- AIt segments data from the system of the sending host and reassembles the data into a data stream on the system of the receiving host.
- BIt provides the connectivity and path selection between two host systems that may be located on geographically separated networks.
- CIt defines how data is formatted for transmission and how access to the physical media is controlled.
- DIt establishes, manages, and terminates session between two communicating hosts.
69Which transport protocol requires a three-way handshake to establish a new connection?
- AARP
- BUDP
- CIP
- DTCP
70What is the subnet mask for the network 172.16.0.0/21?
- A255.255.0.0
- B255.255.255.240
- C255.255.248.0
- D255.255.255.248
- E255.255.248.240
- F255.255.255.0
71What is the dotted hexadecimal representation of the IP address 172.13.99.225
- AAC.0D.63.E1
- BAB.63.99.D5
- CE2.1D.E1.66
- DBC.0C.C3.1F
- ECC.0D.F3.21
72What is the decimal value of the hexadecimal number of 0x718?
- A718
- B1816
- C2907
- D3511
Información
- Descripción
- Test sobre Cisco 640-911 Exam, creado por sirhulk1 el 11/01/2014.
- Autor
- sirhulk1
- Idioma
- English
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