思科第一学期期末考试最新考题CCNA137638.pdf

《思科第一学期期末考试最新考题CCNA137638.pdf》由会员分享，可在线阅读，更多相关《思科第一学期期末考试最新考题CCNA137638.pdf（27页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、 1 Refer to the exhibit.Which Layer 2 protocol could be used inside nework A and network C?IP TCP UDP Ethernet 2 Refer to the exhibit.Which set of devices contains only intermediary devices?A,B,D,G A,B,E,F C,D,G,I G,H,I,J 3 Refer to the exhibit.The headers added at each layer are shown.Which layer a

2、dds the destination and source process nu ensure that data is delivered to the correct application?physical layer data link layer network layer transport layer 4 The Layer 4 header contains which type of information to aid in the delivery of data?service port number host logical address device physi

3、cal address virtual connection identifier 5Which fiber connector supports full-duplex Ethernet?6 Which device should be used for routing a packet to a remote network?access switch DHCP server hub router 7 Refer to the exhibit.Host A sends a frame to host C with a destination MAC address CC.The MAC a

4、ddress for host C is no table of switch SW1.How will SW1 handle the frame?Switch SW1 will drop the frame.Switch SW1 will forward the frame to host C.Switch SW1 will flood the frame out all ports.Switch SW1 will flood the frame out all ports except port Fa0/1.8 Refer to the exhibit.A network technici

5、an has made several changes to R1 since the configuration has last been saved.Th configuration did not produce the desired changes.The technician wants to store a backup copy of the saved configuration server before reloading.Which action will cause the unmodified data to be saved on the TFTP server

6、?9Which three statements are true about network layer addressing?(Choose three.)It uniquely identifies each host.It assists in forwarding packets across internetworks.It uses a logical 32-bit IPv4 address.It is not a configurable address.It is a physical address.It identifies the host from the first

7、 part of the address.10 W hat is the result of using theclock rate 56000command at the serial interface of the router?The interface is configured as a DCE device.The interface timers are cleared.The FastEthernet interface is made to emulate a serial interface by assigning it a timing signal.The IP a

8、ddress for the serial interface is configured.11 Examine the graphic with current configurations.Host A in the Clerical office failed and was replaced.Although a ping to 1 successful,the replacement computer cannot access the company network.With proxy ARP disabled on the Fa0/0 interfa York router,w

9、hat is the likely cause of the problem?network card failure network cables unplugged IP address incorrectly entered subnet mask incorrectly entered 12 As network administrator,what is the subnet mask that allows 510 hosts given the IP address 172.30.0.0?255.255.0.0 255.255.248.0 255.255.252.0 255.25

10、5.254.0 255.255.255.0 255.255.255.128 13 Which OSI layer uses a connection-oriented protocol to ensure reliable delivery of data?application layer presentation layer session layer transport layer 14 A network has grown too large for technicians to configure network addresses and hosts files for name

11、 resolution.Which tw layer services should be added to the server to allow these needs to be satisfied dynamically?(Choose two.)DNS FTP DHCP SMTP 15 Refer to the exhibit.Host A wants to access the Internet.Which combination of a Layer 2 address and a Layer 3 address w access from host A?Destination

12、MAC:0030.8596.DE83 Default gateway:209.165.202.130 Destination MAC:0030.8596.DE82 Default gateway:172.16.9.2 Destination MAC:0030.8517.44C4 Default gateway:172.16.1.1 Destination MAC:0030.8517.44C4 Default gateway:209.165.202.130 16A network administrator is asked to design a new addressing scheme f

13、or a corporate network.There are 60 users in the m users in the branch office,28 users in manufacturing,12 in the sales office,and 4 users in the research office.Which VLS scheme that uses the 192.168.88.0/24 network will fulfill the requirements while wasting the fewest addresses?192.168.88.0/26 ma

14、in 192.168.88.32/26 branch 192.168.88.64/26 manufacturing 192.168.88.96/27 sales 192.168.88.128/28 research 192.168.88.0/26 main 192.168.88.64/26 branch 192.168.88.128/27 manufacturing 192.168.88.160/28 sales 192.168.88.176/29 research 192.168.88.0/27 main 192.168.88.32/27 branch 192.168.88.64/28 ma

15、nufacturing 192.168.88.80/29 sales 192.168.88.88/30 research 192.168.88.0/27 main 192.168.88.64/28 branch 192.168.88.80/28 manufacturing 192.168.88.96/29 sales 192.168.88.104/30 research 17 W hich physical connector type is used for a serial V.35 connection to the CSU/DSU?18 Refer to the exhibit.Whi

16、ch two facts can be determined about the topology?(Choose two.)Four collision domains are present.One logical network is represented.Two broadcast domains are present.Three networks are needed.Three logical address ranges are required.19 W hat are three characteristics of CSMA/CD?(Choose three.)It m

17、onitors the media for presence of a data signal.After detecting a collision,hosts can resume transmission after a random timer has expired.A jam signal is used to ensure that all hosts are aware that a collision has occurred.Devices can be configured with a higher transmission priority.Data is trans

18、mitted only when the data signal is present.It uses a token system to avoid collisions.20 Refer to the exhibit.The serial interface of the router was configured with the use of the commands that are shown.The ro ping the router that is directly connected to interface serial 0/0/0.What should the net

19、work technician do to solve this prob Configure the description at interface serial 0/0/0.Configure an IP address on interface serial 0/0/0.Remove the no shutdowncommand at interface serial 0/0/0 Reboot the router.21 W hich OSI layer uses the header information to reassemble the data segments into s

20、treams?application layer network layer presentation layer session layer transport layer 22 Refer to the exhibit.The NAT functionality of the router is enabled to provide Internet access to the PC.However,the PC to access the Internet.Which IP address should be changed to 209.165.201.1 to enable the

21、PC to access the Internet?192.168.1.191 192.168.1.101 192.168.1.1 192.168.1.254 23 Refer to the exhibit.A technician uses thenslookup command on the PC and views the output that is displayed in the ex the IP address of the primary domain name server used by the host?10.10.10.32 192.168.1.5 192.168.1

22、.99 192.168.2.100 24Which memory contents will change as a result of using the Router#erase startup-config command on a router?RAM ROM flash NVRAM 25 W hile configuring a router,a network technician wants to name the router.Which prompt should the technician see when hostname command?Router Router#R

23、outer(config)#Router(config-line)#26 Refer to the exhibit.The PC,the routing table of which is displayed,is configured correctly.To which network device or in the IP address 192.168.1.254 belong?PC switch router interface fa0/0 router interface fa0/1 27 Refer to the exhibit.A network administrator i

24、s troubleshooting a link that is down between Router1 and Router2.To corre problem,which wire pairs need to be switched on one of the Ethernet cable ends?pair 1 and pair 2 pair 1 and pair 3 pair 2 and pair 3 pair 2 and pair 4 28 Refer to the exhibit.A PC is connected to a network.Which action will v

25、erify that the PC can communicate with its default Use the ping 127.0.0.1command.Use the ipconfigcommand.Use the ipconfig/allcommand.Use the ping 10.0.0.254command.29 Refer to the exhibit.Host B was powered off.What change will occur in the MAC table of the switch?The table will remain unaffected.Th

26、e switch will remove the MAC address at Fa0/19.The switch will retain the MAC address until host B is powered on again.The switch will rebuild the MAC table by assigning the FFFF.FFFF.FFFF address to port Fa0/19.30 What information is contained in the header of Layer 3 to help data delivery?port num

27、ber device physical address destination host logical address virtual connection identifier 31 A network technician is tasked with setting up a network for six users,but the users should be able to use their accounts t any of the six computers.What type of network should be used?workgroup P2P applica

28、tions peer-to-peer network client-server network 32 Refer to the exhibit.A web browser is running on host PC1 with an IP address 10.10.2.2/24.A dynamic port number of 49 assigned to the browser.The browser sends a request for a web page to the web server with an IP address 192.168.1.25 statement is

29、true?The session is established using TCP,and the socket number for the web server is 192.168.1.254:80.The session is established using TCP,and the socket number for the web server is 192.168.1.254:49152.The session is established using UDP,and the socket number for the web server is 192.168.1.254:8

30、0.The session is established using UDP,and the socket number for the web server is 192.168.1.254:49152.33 Refer to the exhibit.An administrator on PC1 wants to view some HTML code from a web page housed on the web serve application will allow this request to be started?34 Refer to the exhibit.What i

31、s required on host A for a network technician to create the initial configuration on Router1?an FTP client a Telnet client a terminal emulation program a web browser 35 What are two characteristics of the data link layer?(Choose two.)It segments and reorders the data.It exchanges the frames between

32、nodes.It defines the method by which network devices place data onto the media.It manages the transfer of data between the processes that run on each host.It retrieves signals from the media and restores them to their bit representations.36 A network administrator wants to restrict access to the rou

33、ter privileged EXEC mode.Which password should the adminis enable aux console VTY 37 Which three IPv4 addresses represent a broadcast for a subnet?(Choose three.)172.16.4.63/26 172.16.4.129/26 172.16.4.191/26 172.16.4.51/27 172.16.4.95/27 172.16.4.221/27 38 Refer to the exhibit.Host X is unable to c

34、ommunicate with host Y.Which command can be run at host X to determine whi intermediary device is responsible for this failure?telnet 192.168.1.1 ping 192.168.1.1 ftp 192.168.1.1 tracert 192.168.1.1 39 Refer to the exhibit.Which option shows the correct topology given the configuration of Router1?40

35、 If an administrator wished to return a router to the default state,what additional step must be taken after issuing the comm start-up config?Reload the device.Issue the command copy running-config start-up config.Perform a show running-configto verify that the file was removed.Enter the interface c

36、ommands to allow the device to connect to the network.41 By using the ipconfig command,a network administrator determines that a workstation has the address 192.168.3.38 with the subnet mask.To what network does the workstation belong?192.168.3.8 192.168.3.16 192.168.3.24 192.168.3.32 42 W hich stat

37、ement is true about router hostnames?A hostname should be unique on each router.A router hostname cannot contain capital letters.A router hostname is configured in privileged executive mode.A router hostname must be created before any other configurations can be added to the device.43 A user types t

38、he enable command.What task can be performed at the privileged EXEC mode?Configure the device.Configure individual interfaces.Configure individual terminal lines.Issue show and debug commands.44 Refer to the exhibit.Which logical topology describes the exhibited network?star ring point-to-point mult

39、i-access 45 Refer to the exhibit.A user wants to access the Internet from the PC.A part of the running configuration of the router is sh default gateway IP address should be configured at the PC to enable this access?10.1.192.1 10.1.192.2 10.1.192.54 192.31.7.1 46 Which statement is true about the I

40、CMP protocol?It is an application layer protocol.It is designed to make IP a reliable protocol.It is often filtered out of networks for security purposes.If a host does not respond to an ICMP echo request,the host is not functioning.47 Refer to the exhibit.At which OSI layer is serial interface 0/0/

41、1 experiencing problems?Layer 1 Layer 2 Layer 3 Layer 4 48 Refer to the exhibit.The host was disconnected from switch 2 and connected to switch 1.Which combination of IP addres mask,and default gateway should be assigned to this host to allow it to function in the network?IP address:10.10.9.37 Subne

42、t mask:255.255.255.240 Default gateway:10.10.9.35 IP address:10.10.9.37 Subnet mask:255.255.255.224 Default gateway:10.10.9.35 IP address:10.10.9.29 Subnet mask:255.255.255.248 Default gateway:10.10.9.35 IP address:10.10.9.32 Subnet mask:255.255.255.224 Default gateway:10.10.9.35 IP address:10.10.9.

43、37 Subnet mask:255.255.255.224 Default gateway:196.1.105.6 IP address:10.10.9.63 Subnet mask:255.255.255.224 Default gateway:10.10.9.35 49 Refer to the exhibit.The diagram represents the process of sending email between clients.Select the list below that corre the component or protocol used at each

44、numbered stage of the diagram.1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA 1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA 1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA 1.MDA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MUA 7.POP 8.MDA 1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA 50 What is the Cisco IOS?system software for Cisco devices Read Only Memory in Cisco devices non-volatile storage for device configurations an initial operating system that is used for boot functions