Ccna Certification Practice Exam

ccna certification practice exam 1 a network has been assigned the ip address of 156.16.0.0. a decision has been made to divide the network into 1024 subnets. which of the following commands are required to activate an ethernet interface and configure it with an address from the 25th subnet of this network? (choose two.) router(config-if)# router(config-if)# router(config-if)# router(config-if)# router(config-if)# router(config-if)#

ip address 156.16.5.0 255.255.255.224 ip address 156.16.5.0 255.255.255.192 ip address 156.16.6.65 255.255.255.192 ip address 156.16.4.193 255.255.255.192 no shutdown clockrate 56000

ce 2 which of the following application layer protocols use tcp? (choose three.) smtp ftp icmp telnet hdlc isdn abd 3 which of the following are private ip addresses? (choose three.) 172.168.33.1 10.35.66.70 192.168.99.5 172.18.88.90 192.169.77.89 127.33.55.16 bcd 4 what must be done to enable a network administrator to configure a switch remotely? the switch must be assigned a host name. the remote management terminal must be assigned to the management vlan. the management ip address of the switch must be set. the managment port must be configured for full-duplex operation. cisco discovery protocol must be active on the switch. snmp must be configured with the ip address of the management console. c 5 which of the following isdn devices can be directly connected to the local loop? (choose three.) a router serial port an isdn router with a nt interface an isdn terminal adapter an nt1 device an nt1/nt2 device

a te1 device bde 6 refer to the diagram. all ports on switch a are in the sales vlan and all ports on switch b are in the accounting vlan. how many broadcast domains and how many collision domains are shown? (choose two). 3 collision domains 3 broadcast domains 5 broadcast domains 9 collision domains 10 collision domains 13 collision domains cd 7 which commands can a network administrator use to monitor and verify access list operations? (choose two.) router# router# router# router# router# router#

show show show show show show

ios version access-lists ip route protocols ip interface cdp neighbor

bd 8 identify the factors that contribute to congestion on an ethernet lan. (choose three.) improper placement of enterprise level servers addition of hosts to a physical segment replacement of hubs with workgroup switches increasing use of bandwidth intensive network applications creation of new collision domains without first adding network hosts migration to full-duplex ethernet within the lan cdf 9 which of the following commands will display "serial0 is up, line protocol is up"? (choose two.) router# router# router# router# router# router#

show show show show show show

ip route protocols interfaces ip protocols running-config cdp neighbors detail

bc 10 what command will display a list of commands available for viewing the status of the router?

router# router# router# router# router#

?show sh? show ? help status ?

d 11 the network administrator shown in the graphic is unable to access the tftp server attached to the miami router. consider only the ip addressing scheme to identify the causes of this problem. (choose two.) the default gateway configured on the network administrator's workstation is not a valid host address. the ip address configured on interface e1 of the miami router is not a valid host address. the ip address of the tftp server is a subnetwork address. the ip address of the s0 interface of the detroit router is a broadcast address. the ip addresses for the miami s1 interface and the detroit s0 are not in the same subnet. ae 12 a network host can ping other hosts on its local lan segment, but it is unable to ping the ip address of the corporate intranet server on another subnet. which of the following are potential causes of this problem? (choose two.) a faulty patch cable from the host to the communications outlet a nic hardware resource conflict on the host an incorrect subnet mask on the host an incorrect default gateway setting on the host a local dns server failure ad 13 a network administrator can ping the denver router, but gets a 'password required but none set' message when trying to connect remotely via telnet. which command sequence must be applied to the denver router to allow remote access? router(config)# line console 0 router(config-line)# login router(config-line)# password cisco router(config)# line vty 0 4 router(config-line)# login router(config-line)# password cisco router(config)# line virtual terminal router(config-line)# enable login router(config-line)# password cisco router(config)# line vty 0 4 router(config-line)# enable secret router(config-line)# password cisco router(config)# enable secret cisco router(config)# enable cisco

b 14 a company has outgrown the address space provided by its 192.168.10.0 network. to accommodate new users, the network administrator decided to implement vlans and do the following: 1. place the users of the 192.168.10.0 network in vlan 168. 2. assign new users an ip address from the 172.30.10.0/24 network. 3. place users of the 172.30.10.0 network in vlan 30. after implementing the planned vlans and connecting the network as shown in the graphic, the administrator finds that the users in vlan 30 are unable to access the internet or communicate with users in vlan 168. however, vlan 168 users are able to access the internet and each other. using the graphic, what should be done to enable users in vlan 30 to communicate with vlan 168 users and the internet? (choose three.) configure e1 with an address in the 172.30.10.0/24 network. place all vlan 30 hosts on the same switch. configure all hosts with 192.168.10.1 as the default gateway. connect the router's e1 port to a switch port configured for vlan 30. connect the router's e1 port to a switch port configured for vlan 168. add the network 172.30.10.0 to the dynamic routing protocol process. abc 15 which of the following best describes the operation of distance vector routing protocols? they they they they

use hop count as their only metric. only send out updates when a new network is added. send their routing tables to directly connected neighbors. flood the entire network with routing updates.

c 16 a router does not load its configuration after a power failure. after running the show startup-configuration command, the adminstrator finds that the original configuration is intact. what is the cause of this problem? the configuration register is set for 0x2100. the configuration register is set for 0x2101. the configuration register is set for 0x2102. the configuration register is set for 0x2142. boot system commands are not configured. flash memory is empty causing the router to bypass the configuration in nvram. d 17 which of the following commands will verify layer 3 reachability between networks? router# show ip interface brief router# show ip route router# show cdp neighbors

router# show running-config router# show protocols c 18 which of the following statements are true regarding the command "ip route 192.168.7.24 255.255.255.248 192.168.7.9"? (choose two.) a packet destined for host 192.168.7.30 will be forwarded to address 192.168.7.9. 192.168.7.9 is the destination network for this route. 192.168.7.24 is the next-hop router in this command. this command is issued from the interface configuration mode. this command is used to define a static route. the route for this network will be propagated to other routers via rip. de 19 what steps are required to implement and assign hosts to vlans? (choose two.) create the vlans on a switch. assign ports to the vlans. select the vlan number on the host machine. configure the switchports with ip addresses. ab 20 which of the following ios commands will define the "interesting" traffic that will cause an isdn link to become active, and which command will assign that definition to an interface? (choose two.) router(config)# dialer 100 idle-timeout 180 router(config)# dialer-list 100 protocol ip permit router(config)# dialer map ip 192.168.100.1 name sanjose 555 1234 router(config-if)# dialer-group 100 router(config-if)# dialer 100 string 555-5000 cd 21 which of the following is associated with link-state routing protocols? low processor overhead poison reverse routing loops split horizon shortest-path first calculations d 22 on a cisco router, which of the following can be configured during setup mode? (choose three.) ip addresses a message of the day banner routed protocols the clock rate for a serial interface the enable password host tables

aef 23 a switch can be configured for three different forwarding modes based on how much of a frame is received before the forwarding process begins. each of the numbered arrows in the accompanying graphic signifies the point in a frame where a particular forwarding mode will begin. which one of the following groups reflects the sequence of forwarding modes signified by the numbered arrows? 1) fast forward 2) fragment free 3) store-and-forward 1) 2) 3) 1) 2) 3) 1) 2) 3)

store-and-forward fragment free fast forward fragment free fast forward store-and-forward fast forward store-and-forward fragment free

a 24 refer to the partial protocol data unit diagrams shown. which of the following statements are true regarding the encapsulation process? (choose three.) pdu #1 is pdu #2 is pdu #3 is pdu #4 is the order 4, 1, 2. the order 1, 4, 3.

an encapsulated packet. an application layer pdu a segment. a transport layer pdu. in which these pdus are created during the encapsulation process is 3, in which these pdus are created during the encapsulation process is 2,

def 25 which of the following encapsulation methods are available on the isdn b channel? (choose three.) ddr hdlc lapb lapd lcp ppp bcd 26 which terms refer to frame relay congestion management mechanisms? (choose three.) becn

cir dlci de fecn lmi abe 27 which layer of the tcp/ip model corresponds with layer 3 of the osi model? the the the the the the

application layer network layer internet layer ip layer data-link layer network interface layer

b 28 a router has learned about a network through static and dynamic routing processes. which of the following routes will be used to reach network 192.168.168.0? i o r s

192.168.168.0/24 192.168.168.0/24 192.168.168.0/24 192.168.168.0/24

[100/8947] via 192.168.200.1, 00:00:09, ethernet0 [110/1012] via 192.168.200.1, 00:00:22, ethernet0 [120/1] via 192.168.200.1, 00:00:17, ethernet0 [1/0] via 192.168.200.1, 00:00:10, ethernet0

d 29 which of the following statements are true regarding ip default routing? (choose three.) router(config-if)# ip default-route 150.150.150.150 will set a default route. router(config)# ip default-network 150.150.150.150 will set a default route. default routes keep the routing table shorter. a default route is used to forward data when the destination network is not explicitly listed in the routing table. default routes are automatically created when the routing protocol is enabled. bcd 30 which of the following are methods of flow control? (choose three.) positive acknowledgement buffering congestion avoidance retransmission windowing bce 31 when troubleshooting a network, it is important to interpret the output of various router commands. using the graphic, identify which of the following statements are true. (choose three.)

the the the the the the

missing missing missing missing missing missing

information information information information information information

for for for for for for

blank blank blank blank blank blank

1 1 2 3 3 4

is is is is is is

the the the the the the

command show ip route. command debug ip route. number 100. letter r. letter i. letter c.

acf 32 the router reads each bit to determine the class of an address. which of the following binary numbers would the router identify as public class a addresses? (choose three.) 00001010.10101100.11001100.00000111 00011111.11110011.11111111.00111011 01011101.11100001.11001100.11011011 10000000.11111000.11000111.11110011 00010111.11011011.11000001.11001100 bcd 33 after several configuration changes are made to a router, the copy run start command is issued. where will the changes be stored? flash rom nvram ram the configuration register a tftp server c 34 refer to the diagram. spanning-tree protocol is running in all three switches. after running spanning-tree protocol, ports 1,2,3,4, and 5 are placed in the forwarding state. which spanning-tree state will port 6 be assigned in order to prevent a loop? listening state disabled state blocking state learning state forwarding state c 35 according to the the provided router output, which of the following statements is true regarding ppp operation? only the link-establishment phase completed successfully. only the network-layer phase completed successfully. neither the link-establishment phase nor the the network-layer phase completed successfully. both the link-establishment and network-layer phase completed successfully.

d 36 which type of vlan identification is specified by ieee 802.1q? frame frame frame frame frame

filtering switching bridging checking tagging

e 37 assuming that four bits have been borrowed to make subnets, identify the subnet network addresses. (choose three.) 192.168.14.8 192.168.14.16 192.168.14.24 192.168.14.32 192.168.14.148 192.168.14.208 abc 38 the show cdp neighbors command is a very useful network troubleshooting tool. using the output in the graphic, select the statements that are true. (choose two.) cdp operates at the network layer of the osi model. the output of this command displays information about directly connected cisco devices only. the switch is attached to the sanjose1 fastethernet0/21 interface. sanjose1 is running cdp version 12.0. sanjose1 has two fully operational, cdp-enabled cisco switches directly connected to it. sanjose2 is a 2600 series router running several routed protocols. bd 39 which of the following are true concerning full-duplex operation on an ethernet network? (choose three.) there are no collisions in full-duplex mode. a dedicated switch port is required for each node. hub ports are preconfigured for full-duplex mode. the host network card must detect the availability of the media before transmitting. the host network card and the switch port must be capable of operating in fullduplex mode. abe 40 which of the following are examples of tcp/ip application layer protocols? (choose three.)

a terminal emulation protocol that supports remote console connections with various network devices a protocol created by ibm that makes it easier for mainframes to connect to remote offices a protocol responsible for transporting electronic mail on tcp/ip networks and the internet a protocol that controls the rate at which data is sent to another computer a protocol that exchanges network management information between a network device and a management console acd 41 the output of the show ip interface brief command displays serial0 is up, line protocol is down. which of the following are possible causes for the line protocol being in the down state? (choose two.) the clock rate is not set on the dte. an incorrect default gateway is set on the router. a network is missing from the routing protocol configuration. the encapsulation on the serial0 interface is incorrect. keepalives are not being sent. cd 42 assuming a subnet mask of 255.255.224.0, which of the following would be valid host addresses? (choose three.) 124.78.103.0 125.67.32.0 125.78.160.0 126.78.48.0 176.55.96.0 186.211.100.0 abc 43 which hosts will receive arp requests from host a, assuming that port 4 on both switches is configured to carry traffic for multiple vlans? (choose three.) host host host host host

b c d e f

a 44 a serial link between routera and routerb is configured for ppp with pap authentication. which of the following additional commands are required on the routers in order for routerb to authenticate to routera? (choose two.) routera(config)# username stranger password letmein routerb(config)# username stranger password letmein routera(config-if)# ppp pap sent-username stranger password letmein routerb(config-if)# ppp pap sent-username stranger password letmein

ab 45 which of the following are features of a connection-oriented protocol? (choose two.) data transport reliability best path determination establishing, maintaining, and terminating virtual circuits encapsulation of packets in a data frame with source and destination mac addresses best-effort datagram delivery ac 46 where should extended access control lists be placed? they should denied. they should denied. they should they should

be placed as close as possible to the source of the traffic to be be placed as close as possible to the destination of the traffic to be be placed on the fastest interface available. be placed on the destination wan link.

a 47 which of the following statements are true regarding the meaning of the access control list wildcard mask 0.0.0.15? (choose two.) the the the the the the

first 28 bits of a supplied ip address will be ignored. last four bits of a supplied ip address will be ignored. first 32 bits of a supplied ip address will be matched. first 28 bits of a supplied ip address will be matched. last five bits of a supplied ip address will be ignored. last four bits of a supplied ip address will be matched.

af 48 refer to the diagram. two vlans have been configured on the switch and users have been assigned. users in the sales vlan can ping all of the users in their vlan, but can not ping the users in the hr vlan. why is this true? (choose two.) all users are in one collision domain. all users are in one broadcast domain. a router is required for communication between vlans. the users are in separate broadcast domains. the switch has not been assigned an ip address. cd 49 frame relay is configured over a point-to-point connection between two routers. the output of the show frame-relay pvc command indicates that the status of this pvc is inactive. which of the following devices could be the source of the problem? (choose two.) local router local frame relay switch

remote router remote frame relay switch ab 50 the tampa and orlando routers have been configured but do not have full connectivity. using the partial command output and the diagram, which of the following will occur when testing the network? tampa and orlando will not be able to ping each other through the serial interfaces. tampa and orlando will not learn any routes through the rip process. orlando will have all five of the networks listed in its routing table. tampa will have all five of the networks listed in its routing table. b 51 understanding the differences between pap and chap is essential. read the items below and determine which are correct. (choose three.) pap sends passwords in clear text. pap uses a 3-way handshake to establish a link. pap uses the router to control the frequency of login attempts. chap uses a 2-way handshake to establish a link. chap encrypts the password while providing protection against playback attacks. chap uses repeated challenges for verification. ace 52 which of the following applications use the udp protocol? (choose two.) telnet snmp smtp sql tftp ce 53 a dynamic routing protocol is configured and working on all of the routers shown in the network. the new network, 143.116.123.0/24, was added to the configuration of router e and advertised in its routing table 60 seconds ago. which of the following statements are true regarding the new network? (choose three.) if rip is the routing protocol, routers a,b,c,d, and e should display the new network in their routing table. if rip is the routing protocol, all of the routers should display the new network in their routing table. if igrp is the routing protocol, routers a,b,c,d, and e should display the new network in their routing table. if igrp is the routing protocol, only router e should display the new network in its routing table. if ospf is the routing protocol, routers b,c, and e should display the new network in their routing table.

if ospf is the routing protocol, all of the routers should display the new network in their routing table. abc