9TUT CCNA Exam 102 Questions

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Question 1A network engineer must configure the router R1 GigabitEthemetl/1 interface to connectto the router R2 GigabitEthemetl/1 interface. For the configuration to be applied theengineer must compress the address 2001:0db8:0000:0000:0500:000a:400F:583B. Whichcommand must be issued on the interface?•A. ipv6 address 2001 db8:0::500:a:4F:583B.B. ipv6 address 2001::db8:0000::500:a:400F:583B•C. ipv6 address 2001:db8::500:a:400F:583Bcorrect•D. ipv6 address 2001:0db8::5:a:4F:583BQuestion 2Which switch technology establishes a network connection immediately when it is pluggedin?•A. PortFastcorrect•B. BackboneFast•C. UplinkFast•D. BPDU guardExplanationPortfast is often configured on switch ports that connect to hosts. Interfaces with Portfast enabled willgo to forwarding state immediately without passing the listening and learning state. Therefore it cansave about 30 to 45 seconds to transition through these states.UplinkFast is a Cisco specific feature that improves the convergence time of the Spanning-TreeProtocol (STP) in the event of the failure of an uplink.Question 3A user configured OSPF in a single area between two routers. A serial interface connectingR1 and R2 is running encapsulation PPP. By default which OSPF network type is seen onthis interface when the user types show ip ospf interface on R1 or R2?•A. point-to-multipoint•B. point-to-pointcorrect•C. broadcast•D. non-broadcastExplanationThe default OSPF network type for HDLC and PPP on Serial link is point-to-point (while the defaultOSPF network type for Ethernet link is Broadcast).Question 4What is the default behavior of a Layer 2 switch when a frame with an unknown destinationMAC address is received?

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•A. The Layer 2 switch forwards the packet and adds the destination MAC address to Its MACaddress table•B. The Layer 2 switch floods packets to all ports except the receiving port in thegiven VLANcorrect•C. The Layer 2 switch sends a copy of a packet to CPU for destination MAC address learning•D. The Layer 2 switch drops the received frameExplanationIf the destination MAC address is not in the CAM table (unknown destination MAC address), the switchsends the frame out all other ports that are in the same VLAN as the received frame. This is calledflooding. It does not flood the frame out the same port on which the frame was received.Question 5Refer to the exhibit.Gateway of last resort is 172.16.2.2 to network 0.0.0.010.0.0.0/8 is variably subnetted, 2 subnets, 2 masksC10.10.10.0/24 is directly connected, GigabitEthemet0/0/0L10.10.10.3/32 is directly connected, GigabitEthemet0/0/0172.16.0.0/16 is variably subnetted, 3 subnets, 2 masksS172.16.1.33/32 is directly connected, GigabitEthernet0/0/lC172.16.2.0/23 is directly connected, GigabitEthemet0/0/lL172.16.2.1/32 is directly connected, GigabitEthcmctO/0/1S* 0.0.0.0/0 [1/0] via 172.16.2.2Apacket sourced from 10.10.10.1 is destined for 172.16.3.254. What is the subnet mask ofthe destination route?•A. 0.0.0.0•B. 255.255.255.255•C. 255.255.254.0correct•D. 255.255.255.0ExplanationThe packet destined for 172.16.3.254 will be routed via the entry "C 172.16.2.0/23 ..." as this subnetranges from 172.16.2.0 to 172.16.3.255.Question 6When a floating static route is configured, which action ensures that the backup route isused when the primary route falls?•A. The floating static route must have a lower administrative distance than the primary routeso it is used as a backup•B. The administrative distance must be higher on the primary route so that the backup routebecomes secondary•C. The floating static route must have a higher administrative distance than theprimary route so it is used as a backupcorrect•D. The default-information originate command must be configured for the route to be installedinto the routing tableQuestion 7Refer to the exhibit.

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R1#show sp routeCodes: C - connected. S - static. R - R1P:M - mobile. B - BGPD - EIGRP, EX - EIGRP external, O - OSPF. SA - OSPF inter areaN1 - OSPF NSSA external type 1:N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPCexternal lype 2i -IS •IS, su - IS-IS summary, L1 - lS-tS level-1, L2 - IS-IS level-2ia - IS-IS inter area, ’ - candidate default, U - per-user static routeo - ODR, P - periodic downloaded static routeGateway of last resort is not set10.0.0.0/24 is sucnetted, 5 subnetsD10.1 2.0/24 [90/2170112' via 10.145.20.226, 00:01 :33:SerialO/OD10.1.3.024 [90/2170112? v-a 10,145.20,226. 00:01 :33, SerialQ/OD10 1 2.0/25 (90/21 70 i 12; via 10.145.20.126. 00:01 :33,SerialO/OD10.1.3.0/25 [90/2170112; via 10.145.20.146.. 00:01:33. SerialO/0D10.1.4.0/25 [90/2170112] via 10.145.20. 156. 00:0 1:33. Serial0/0192 166.1.0/24 is variably subnetted, 2 snonets, 2 masksC192.168.10.0/24 is directly connected, GigabitEthernelO/O192 168.21.0/24 is variably subnetted, 2 subnets. 2 masksC192.168.11.0/24 is directly connected, GrgabtfEthernelO/l10.165.20.0/24 is variably subnetted, 2 subnets. 2 masksC192.168.20.224/24 is directly connected, SerialO/OS10.1.2.112/28 [1/0] via 10.165.20.166What is the next hop for traffic entering R1 with a destination of 10.1.2.126?•A. 10.165.20.166correct•B. 10.165.20.126wrong•C. 10.165.20.146•D. 10.165.20.226ExplanationThe static route destined to subnet 10.1.2.112/28 which ranges from 10.1.2.112 to 10.1.2.127(increment: 16) so it also covers the destination of 10.1.2.126. The static route also has the lowestAD (of 1) so the router will choose this path.Question 8Refer to the exhibit.R1# show ip routeCodes: C— connected, S— static, I— IGRP, R - RIP, M - mobile, B—BGP

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D — EIGRP, EX - EIGRP external, O— OSPF, IA— OSPF inter areaN1— OSPF NSSA external type 1, N2 - OSPF NSSA external type 2El - OSPF external type 1, E2— OSPF external type 2, E— EGPi—IS-IS, LI -IS-IS level-1, L2— IS-IS level-2, *—candidatedefaultU - per-user static route, o— ODRGateway of last resort is not setC172.16.0.0/16 is directly connected, LoopbackO172.16.0/16 is variably subnetted, 4 subnets, 2 masksO172.16.1.3/3 [110/100] via 192.168.7.40, 00:39:08, SerialOC172.16.1.0/24 is directly connected, SerialOO172.16.1.184/29 [110/5] via 192.168.7.35, 00:39:08, SerialOO172.16.3.0/24 [110/10] via 192.168.7.4, 00:39:08, GigabitEthernet0/0D172.16.1.0/28 [90/10] via 192.168.7.7, 00:39:08, GigabitEthernet 0/0Load-balanced traffic is coming in from the WAN destined to a host at 172.16.1.190. Whichnext-hop is used by the router to forward the request?•A. 192.168.7.7•B. 192.168.7.4•C. 192.168.7.40•D. 192.168.7.35correctQuestion 9Refer to the exhibit.

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Ct \ > l p e o n fL g / a l lw i n d o w sI PConf o g u r a t :H o s tIiarrc..,+P t i r a r ylinnS u f f i xNodetype+.,+I PR o u t i n gE n a b l e d .MINSProxyE n a b l e d .;JAS:M i x e drNo:NoN i r o l e g sU mL o t j lAr A*C o n n e c t i o n ’£■:Mildi. aS t a tv t m n o c t i o n - s p a c i fi pDNSD e s c r i p t i o n,.P h y s i c a lAdores sDHCPE n a b l e d .,A u t o c o n fi g u r . i ti o nEnn bl adMediad i S ' C ' P n n e i c t c dM i c r o s o f thi— FlD i r e c tV i r t u a lA d a p t o rl A - 7 6 - 3 f - 7 C - 5 7 - D b 'YesWi ra I o n sU ma d a p t o rK i - ? d:C on nQ<rt 1 on - s pTins e r i pf. j on,P h y s i c a lfidara?DHCPK n a b l s p .<A u t o c o n f iLi n.Jc-l<icaI n t e l(R)DualBapdW y g e l e n a - A CB2$DB 6 - 7 6 - 3 F - 7 C - 5 H - p FNq‘\ .feao i ; 3dd8 T, „ 3; * f o 4 T<7 3 1 M( P r e f e r r e d ). 8 2 . : KB. J .20 ( P r e f e r r e d )2 5 5 . 2 5 5 , 2 5 5 , 01 9 2 . 1 £ S . ] . 12 6 4 5 3 7 3 6 3 70 0 - a i - 0 0 - 0 1 - l J - R 3 - 4 2 - 2 H - 3 3 - r 3 - 3 4 - 2 9 - 2 0 - D r1 9 2 , t 6 8 , 1 . 1 51 9 2 . i $ e . i . i 4E n a b l e diriE n a b l e dA d d r e s s.IJHCPvtTAin[YHCPvtC . l i e r VJXITDNet BI DSoverT q p i pAn engineer is required to verify that the network parameters are valid for the userswireless LAN connectivity on a /24 subnet. Drag and drop the values from the left onto thenetwork parameters on the right. Not all values are used.192.168,1,1host IP address192.168,1,255broadcast address192.168,1,20network addressB8“76“3F-7C-57‘DFdefault gateway1A-76-3F-7C-57-DFMAC address192.168.1 254last assignable IP addressin the subnet192.168.1.0

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Note: You just need to click on one of the boxes on the right to match it with thecorresponding box on the left. For unused value, please match it with "Unused" option.192.168.1.20192.168.1.255host IP addressbroadcast address■’192.168.1.0network addressz192.168.1.1default gatewayB8-76-3F-7C-57-DFMAC addressp’192.168.1.254last assignable IP address in the subnet1A-76-3F-7C-57-DFUnusedExplanation+ host IP address: 192.168.1.20+ broadcast address: 192.168.1.255+ network address: 192.168.1.0+ default gateway: 192.168.1.1+ MAC address: B8-76-3F-7C-57-DF+ last assignable IP address in the subnet: 192.168.1.254Question 10Refer to the exhibit.MacOsS ifconligenO:. flags -8863<UP.BROADCAST.SMART.RUN Nl NG.SIMPLEX MULTICAST-> mlu 1500options=400<CHANNE L_IO>ether 10:18:34:34:34mel6 fe80::492:c09F5?cc:3343%en(} prelixten 64 secured soopeid 0x6me! 10.8.138.14 netmask OxfrreOOO broadcast 10.8 159.255nd6 op! cns«2Q1<PE RFOR MNUD,DAD>mediaautosclcctstatus: activeA network engineer must provide configured IP addressing details to investigate a firewallrule issue. Which subnet and mask identify what is configured on the enO interface?•A. 10.8.64.0/18•B. 10.8.138.0/24•C. 10.8.0.0/16•D. 10.8.128.0/19correctExplanationnetmask OxffffeOOO means 255.255.224.0 or /19 (convert from hex to decimal) -> Answer'10.8.128.0/19' is correct. We also notice the broadcast address is 10.8.159.255.Question 11

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Drag and drop the characteristic from the left onto the cable type on the right.Please type the corresponding numbers of each item on the left to the blank below and sortthem in ascending order. For example: 1324 (which means 136 for first group, 245 forsecond group).Please type your answer here:1324ExplanationAnswer:multimode fiber:+ uses multiple wavelengths of light+ has increased attenuation over long distancessingle-mode fiber:+ has a core diameter of 9 microns+ uses a single wavelength of lightExplanationSingle-mode fiberallows only one mode of light to propagate. Because of this, the number of lightreflections created as the light passes through the core decreases, lowering attenuation and creatingthe ability for the signal to travel further. This application is typically used in long distance, higherbandwidth.Because of the high dispersion and attenuation rate withmultimode fiber cable, the quality of thesignal is reduced over long distances.Reference:https://www.multicominc.com/training/technical-resources/single-mode-vs-multi-mode-fiber-optic-cable/Question 12What is a benefit of a point-to-point leased line?•A. low cost•B. simplicity of configurationcorrect•C. full-mesh capability•D. flexibility of designExplanationPoint-to-point lines are usually leased from a service provider and are called leased lines...The advantages of leased lines include

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Simplicity: Point-to-point communication links require minimal expertise to install and maintain.Reference:https://www.ciscopress.com/articles/article.asp?p=2202411&seqNum=7Question 13By default, how long will the switch continue to know a workstation MAC address after theworkstation stops sending traffic?•A. 900 seconds•B. 600 secondswrong•C. 300 secondscorrect•D. 200 secondsExplanationThe default MAC address age timeout is 300 seconds.Question 14What is the purpose of the service-set identifier?•A. It identifies the wired network to which a network device is connected•B. It identifies the wireless network to which an application must connect•C. It identifies the wired network to which a user device is connected•D. It identifies a wireless network for a mobile device to connectcorrectExplanationThe service-set identifier (SSID) is a unique identifier that wireless networking devices use to establishand maintain wireless connectivity.Reference:https://www.dsco.com/c/en/us/td/docs/wireless/access_point/1300/12-2_15_JA/configuration/guide/ol 3ssid.htmlQuestion 15Drag and drop the descriptions of IP protocol transmissions from the left onto the correctIP traffic types on the right.Sends Transmission in SequenceTransmits packets individuallyOUses higher transmission rate tosupport latency-sensitive appsUses a lower transmissionrate to ensure reliabilityTransmissions includean 8-byte header7ransmits packet as streamNote: Please type the corresponding numbers of each item on the left to the blank belowand arrange them ascendingly. For example: 136245 (which means 136 for first group, 245

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for second group).Please type your answer here:X145236(correct answer: 146235)ExplanationUDP is a simpler message-based connectionless protocol. In connectionless protocols, there is noeffort made to setup a dedicated end-to-end connection.Datagrams -Packets are sent individuallyand are guaranteed to be whole if they arrive. Packetshave definite bounds and no split or merge into data streams may exist.According tohttps://community.cisco.eom/t5/networking-documents/udp/ta-p/3114870TCP is connection-oriented and UDP is connectionless. This means that before sending TCP packets, aconnection is established between the server and the client. This process of setting up a connection iscalled TCP handshaking. The stream of packets is then sent over this connection -> TCP transmitspacket as stream.Reference:https://www.vpnmentor.com/blog/tcp-vs-udp/Question 16What are two reasons to implement DHCP in a network? (Choose two)•A. dynamic control over the best path to reach an IP address•B. control the length of time an IP address is used by a network devicecorrect•C. access a website by name instead of by IP address•D. reduce administration time in managing IP address ranges for clientscorrect•E. manually control and configure IP addresses on network devicesExplanationDHCP automatically issue IP address in configured ranges for clients -> Answer 'reduce administrationtime in managing IP address ranges for clients' is correct.With DHCP, we can control the length of time an IP address issued by DHCP lease time. This featuredetermines how long a device can keep an IP address before renewing or releasing it -> Answer'control the length of time an IP address is used by a network device' is correct.Question 17Order the DHCP message types as they would occur between a DHCP client and a DHCPserver.FirstDHCPDISCOVERSecondDHCPREQUEST-ThirdDHCPOFFERFourthDHCPACKExplanationThere are four messages sent between the DHCP Client and DHCP Server: DHCPD ISCOVER,DHCP O FFER, DHCPREQUEST and DHCPA CKNOWLEDGEMENT. This process is often abbreviatedasDORA(for Discover, Offer, Request, Acknowledgement).Answer:+ First: DHCPDISCOVER+ Second: DHCPOFFER

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+ Third: DHCPREQUEST+ Fourth: DHCPACKQuestion 18How will Link Aggregation be implemented on a Cisco Wireless LAN Controller?<="" div="" style="box-sizing: border-box;">•A. When enabled, the WLC bandwidth drops to 500 Mbps•B. The EtherChannel must be configured in "mode active"•C. One functional physical port is needed to pass client trafficcorrect•D. To pass client traffic, two or more ports must be configuredExplanationLink aggregation (LAG) is a partial implementation of the 802.3ad port aggregationstandard. It bundles all of the controller's distribution system ports into a single 802.3adport channel.Restriction for Link aggregation:+ LAG requires the EtherChannel to be configured for 'mode on' on both the controller andthe Catalyst switch -> Answer 'The EtherChannel must be configured in "mode active'" isnot correct.+ If the recommended load-balancing method cannot be configured on the Catalystswitch, then configure the LAG connection as a single member link or disable LAG on thecontroller -> Answer 'To pass client traffic, two or more ports must be configured' is notcorrect while answer 'One functional physical port is needed to pass client traffic' isCOlTCCt.Reference:https://www.cisco.com/c/en/us/td/docs/wireless/controller/7-5/configuration-guide/b_cg75/b_cg75_chapter_0100010.htmlQuestion 19Which two events occur automatically when a device is added to Cisco DNA Center?(Choose two)•A. The device is placed into the Managed state.correct•B. The device is assigned to the Global site.correct•C. The device is placed into the Unmanaged state.•D. The device is placed into the Provisioned state.•E. The device is assigned to the Local site.ExplanationDevice in Global Site: When you successfully add, import, or discover a device, Cisco DNA Centerplaces the device in the Managed state and assigns it to the Global site by default. Even if you havedefined SNMP server, Syslog server, and NetFlow collector settings for the Global site, Cisco DNACenter does not change these settings on the device.Reference:https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/2-1-2/admin_guide/b_cisco_dna_center_admin_guide_2_l_2/b_cisco_dna_center_admin_guide_2_l_l_chapter_010.htmlQuestion 20Refer to the exhibit.

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SWl#show ip interface briefInterfaceIP-AddressFastEthemetO/1unassignedOK? Method Status ProtocolYES manual downdownSWl#show interface faO/1 statusPortNameStatusVianDuplexSpeedTypeFaO/1notconnect1a-fulla-10010/100BaseTXWhat is the cause of the issue?•A. shutdown command•B. STP•C. port security•D. wrong cable typecorrectExplanationThe "Status" of faO/1 is "notconnect" so port security is not the issue or it would show the status of"err - disabled"."Shutdown" command is also not the issue as it would show "Administratively down" in the "Status"field of the "show ip interface brief' command.With STP, even if the port is in "Block" (BLK) status but it is still in "up/up" state with the "show ipinterface brief command.With wrong cable type, the port is in "down/down" state, same as there is no connected cable to theport.Question 21Refer to the exhibit. An engineer must add a subnet for a new office that will add 20 usersto the network. Which IPv4 network and subnet mask combination does the engineerassign to minimize wasting addresses?10.10.225.(1'2810.10.22.510.10. 225,20 Hosts•A. 10.10.225.32 255.255.255.240•B. 10.10.225.32 255.255.255.224correct•C. 10.10.225.48 255.255.255.224•D. 10.10.225.48 255.255.255.240ExplanationWe need a subnet with 20 users so we need 5 bits 0 in the subnet mask as 25-2 = 30 > 20.Therefore the subnet mask should be 727 (with last octet is 1110 0000 in binary). The increment is 32so the valid network address is 10.10.225.32.Question 22Drag and drop the facts about wireless architectures from the left onto the types of accesspoint on the right. Not all options are used.

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Cloud-Based Access Paintconfigured and managed by a WLCmanaged from a Wcb-bssed dashboard©accessible for management ria Te'nctSSH. or aWeb GUILightweight Accass Pointsupports different operational modessupports automatic deploymentPlease type the corresponding numbers of each item on the left to the blank below and sortthem in ascending order. For example: 1324 (which means 13 for first group, 24 for secondgroup).Please type your answer here:2514ExplanationAnswer:Cloud-Based Access Point+ managed from a Web-based dashboard+ supports automatic deploymentLightweight Access Point+ configured and managed by a WLC+ supports different operational modesQuestion 23Refer to the exhibit.Which command must be executed for Gil /I on SW1 to passively become a trunk port ifGi1/1 on SW2 is configured in desirable or trunk mode?•A. switchport mode dynamic desirablewrong•B. switchport mode dynamic autocorrect•C. switchport mode dotl-tunnel•D. switchport mode trunkExplanationTo form a trunk in this question, we can use either (dynamic) "auto" or (dynamic) "desirable" mode oreven "trunk" mode but only dynamic auto mode will passively form a trunk port.

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DynamicAutoE?ynsmit;Desir zttjftTunKAccr.'<-*DynamicAutoAccessTrunkTttiikACCMSDynamicOwwabtoTrunkTri/ikTrunkAccessTrunkTrtxikTrunkLiltedConnectivityAccessAccessAccessLJTiriedConnectivityAccessQuestion 24In QoS, which prioritization method is appropriate for interactive voice and video?•A. low-latency queuingcorrect•B. round-robin scheduling•C. traffic policing•D. expedited forwardingExplanationLow Latency Queuing (LLQ) adds strict priority to the CBWFQ and allows delay sensitive data (Voiceand Video) to be dequeued and sent before lower priority packets. This practice gives delay sensitivedata preferential treatment over other traffic.Note: The Expedited Forwarding (EF) model is used to provide resources to latency (delay) sensitivereal-time, interactive traffic and it is suitable to use with voice and video traffic but it is not considereda "prioritization method".Question 25Refer to the exhibit.Switch ASwitch B

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Switch AVian 10 11,12,13interface GigabitEthernetL. Iswifchport mode trunkswitchpuil trunk allowed vlan 10-12iinterface GlgaDltEthemett),'4switchport access vlan 13switchport mode accessSwitch BVlan 10,11,12,13interface GigabitEthemetO/lswitchport mode trunkIinterface GigabitEthernetO/3switchport access vlan 13switchpcrt mode accessA network engineer must configured communication between PC A and the File Server. Toprevent interruption for any other communications, which command must be configured?•A. Switchport trunk allowed vlan add 13correct•B. Switch trunk allowed vlan 12•C. Switchport trunk allowed vlan remove 10-11•D. Switchport trunk allowed vlan noneExplanationSwitch A does not allow VLAN 13 to go through so we must add VLAN 13 to the allowed list ofinterface GiO/1 of SwitchA by the command "switchport trunk allowed vlan add 13".Question 26Refer to the exhibit.R2#show ip routeC 192.168.1.0/26 is directly connected, FastEthernetO/1Which two prefixes are included in this routing table entry? (Choose two)•A. 192.168.1.17correct•B. 192.168.1.127•C. 192.168.1.64•D. 192.168.1.61correct.E. 192.168.1.254Question 27Refer to the exhibit.

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TanGigabilEthemetO/O/O is up, line protocol is upHardware Is 9UILT-IN-2T-6X1GE, address is 74aO.2f7a.Ol23 (bia 74a0.2f7a.0l23)Description: Uplihkinternet address is 10.1.1.1.'24MTU15C0 bytes,BW10000000Kbil/sec,DLY 10 usee,reliability 255'255txioad 1/255, rxlaad 1/255EncapsulationARPA.loopback not secKeepalive not supportedFull Duplex, 10000Mbps, link type is force-up. media type is unknown media typeoutput flow control is oninput flow-control is onART type. ARPA, ARP Timeout 04:0Q DQLast input 00:00 00oufpi.t 00 05:40, output hang neverLast clearing of "show interlace" counters neverInput queue: 0/375:0/0ize'maK',drops,’flushes}Total output drops: 0Queueing strategy: fifeOutput queue: C/40 (size/max)5 minute input rate 6160000 bi|£/secr1113 packets/see5 mmuie output rate 11213Q0C bats/sec, 1553 packets/seo12662416065 packets input. 12607032232.894 bytes, 0 no butterReceived 14117163 broadcasts (0 IP multicasts)0 runts. 0 giants, 0 throttles0 input erro s, 0 CRC. 0 frame, 0 overrun, 0 ignored0 watchdog26271385 multicast, 0 pause Input7907770050 packets outpul, 5072790424092 bytes, 0 underrunsOoutpu: errors, 8662414049 collisions,1interface resets0 unknown protocol drops0 babbles, 0 late cod oion, 0 deterred0ost carrier C no carrier. 0 pause output0 outpu: buffer failures. 0 output buffers swapped out1carrier transitionsTraffic that is flowing over interface TenGigabitEthemetO/O experiences slow transferspeeds. What is the reason for the issue?•A. heavy traffic congestion•B. queuing drops•C. a speed conflict•D. a duplex incompatibilitycorrectExplanationWe see the collisions are very high compared to the packets output. The is usually the result of duplexmismatch (one is half-duplex, one end is full-duplex for example)Question 28Which interface condition is occurring in this output?R25# show interface faO/OFastEthemetO/O is up, line protocol is upHardware is DEC21140, address is ca02.7788.0000 (bia ca02.7788.0000)Description: singapore_subnetInternet address is 10.32.102.2/30

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MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usee,reliability 255/255, txload 255/255, rxload 255/255Encapsulation ARPA, loopback not setKeepalive set (60 sec)Full-duplex, 100 Mb/s, lOOBaseTX/FXARP type: ARPA, ARP Timeout 04:00:00Last input 00:00:01, output 00:00:00, output hang neverLast clearing of 'show interface' counters neverInput queue: 0/300/0/0 (size/max/drops/flushes); Total output drops: 0Queueing strategy: fifoOutput queue: 0/300 (size/max)30 second input rate 225953751 bits/sec, 0 packets/sec30 second output rate 232423817 bits/sec, 0 packets/sec7331 packets input, 7101162 bytesReceived 267 broadcasts (0 IP multicasts)0 runts, 0 giants, 0 throttles0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored0 watchdog0 input packets with dribble condition detected3927 packets output, 1440403 bytes, 0 underruns0 output errors, 0 collisions, 0 interface resets0 unknown protocol drops0 babbles, 0 late collision, 0 deferred0 lost carrier, 0 no carrier0 output buffer failures, 0 output buffers swapped out•A. high throughputcorrect•B. collisions•C. duplex mismatch•D. bad NICExplanationBoth txload and rxload on this interface are "255/255" so this interface is busy in transmitting andreceiving traffic.Question 29Which device separates networks by security domains?•A. wireless controller•B. firewallcorrect•C. intrusion protection system•D. access pointQuestion 30What is represented by the word "R20" within this JSON schema?12[{'firewall': 'FW12', 'port':'e0/23'},

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{'router': 'R20', 'port':'te5/5'},{'switch': 'SW25', 'port':'ge1/36'},J345•A. object•B. array•C. valuecorrect•D. keyExplanationJSON syntax structure:+ A key/value pair consists of a key (must be a string in double quotation marks"), followed by acolon:, followed by a value. For example: "name":"John"Therefore in this question, "router" is the key while "R20" is the value.Question 31Which IPv6 address type provides communication between subnets and cannot route on theInternet?•A. multicast•B. global unicast•C. link-local•D. unique localcorrectExplanationA IPv6 Unique Local Address is an IPv6 address in the block FCOO::/7. It is the approximate IPv6counterpart of the IPv4 private address. It is not routable on the global Internet.Note: In the past, Site-local addresses (FEC0::/10) are equivalent to private IP addresses in IPv4 butnow they are deprecated.Link-local addresses only used for communications within the local subnet. It is usually createddynamically using a link-local prefix of FE80::/10 and a 64-bit interface identifier (based on 48-bitMAC address).Question 32Which command can you enter to allow Telnet to be supported in addition to SSH?•A. no transport input telnet•B. privilege level 15•C. transport input telnet sshcorrect•D. transport input telnetQuestion 33Which type of API would be used to allow authorized salespeople of an organization accessto internal sales data from their mobile devices?•A. open•B. partner•C. privatecorrect•D. publicExplanationThere are three types of API:+Open APIs (Public APIs)-These APIs are publicly available and can be used with no restrictions.Because these APIs are public, many API providers require the user to get a free key, or token, priorto using the API. This is to help control the number of API requests they receive and process.

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