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DsmbISP Chapter 9 Exam Answers

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Q.1 A company is developing an Internet store for its website. Which protocol should be used to transfer credit card information from customers to the company web server ?
 FTPS
 HTTP
 HTTPS
 WEP2
 TFTP
Q.2. Refer to the exhibit. A new branch office has been added to the corporate network and anew router is to be installed to allow branch office users to access the database server at headquarters. How should the serial 0/0/0 interface of the new branch office router be configured to connect to the headquarters router ?
 branch_23(config-if)# ip address 192.168.5.19 255.255.255.240
     branch_23(config-if)# no shutdown
 branch_23(config-if)# encapsulation hdlc
     branch_23(config-if)# ip address 192.168.5.25 255.255.255.240
     branch_23(config-if)# no shutdown
 branch_23(config-if)# encapsulation ppp
     branch_23(config-if)# no shutdown
 branch_23(config-if)# encapsulation ppp
     branch_23(config-if)# ip address 192.168.5.33 255.255.255.240
 branch_23(config-if)# encapsulation ppp
     branch_23(config-if)# ip address 192.168.5.21 255.255.255.240
     branch_23(config-if)# no shutdown
Q.3 Which two commands ensure that any password that permits access to the privileged EXEC mode is not shown in plain text when the configuration files are displayed ? (Choose two.)
 Router(config)# enable secret cisco
 Router(config)# enable cisco
 Router(config)# encryption-password all
 Router(config)# enable login encrypted
 Router(config)# enable password encryption
 Router(config)# service password-encryption
Q.4 A new network is to be configured on a router. Which of the following tasks must be completed to configure this interface and implement dynamic IP routing for the new network? (Choose three.)
 Select the routing protocol to be configured.
 Assign an IP address and subnet mask to the interface
 Update the ip host configuration information with the device name and new interface IP address.
 Configure the routing protocol with the new network IP address.
 Configure the routing protocol with the new interface IP address and subnet mask.
 Configure the routing protocol in use on all other enterprise routers with the new network information.
Q.5 How does TCP ensure the reliable transfer of data ?
 If data segments are not received from the source, the destination requests that the segments be resent.
 If an acknowledgment of the transmitted segments is not received from the destination in a predetermined amount of the time, the source resends the data.
 TCP uses the SYN-ACK portion of the three-way handshake to ensure that all data has been received
 The TCP Protocol Interpreter process verifies the transmitted data at source and destination.
Q.6 A network administrator is asked to design a system to allow simultaneous access to the Internet for 250 users. The ISP for this network can only supply five public IPs. What can be used to accomplish this task ?
 routable translation
 dynamic translation
 static translation
 port address translation
Q.7 What is the most commonly used exterior routing protocol ?
 BGP
 RIP
 OSPF
 EIGRP
Q.8 Refer to the exhibit. The network administrator needs to configure the router with a name. Which command will the administrator use to configure the router name ?
 Router# ip hostname Boise
 Router# enable hostname Boise
 Router(config-line)# name Boise
 Router(config)# hostname Boise
 Router(config)# ip hostname Boise
Q.9 Why are port numbers included in the TCP header of a segment ?
 to indicate the correct router interface that should be used to forward a segment
 to identify which switch ports should receive or forward the segment
 to determine which Layer 3 protocol should be used to encapsulate the data
 to enable a receiving host to forward the data to the appropriate application
 to allow the receiving host to assemble the packet in the proper order
Q.10 What is the purpose of the routing process ?
 to encapsulate data that is used to communicate across a network
 to select the paths that are used to direct traffic to destination networks
 to convert a URL name into an IP address
 to provide secure Internet file transfer
 to forward traffic on the basis of MAC addresses

 

 

Q.11 Which two statements are true about the use of the debug ip rip command on a Cisco router? (Choose two.)
 The debug ip rip command displays RIP routing activity in real time.
 The debug ip rip command can be issued at the user EXEC configuration mode.
 The debug ip rip command displays a combination of the information that is displayed by the show ip route and show ip protocols commands.
 Because of router processor usage, the debug ip rip command should be used only when necessary.
 The debug ip rip command should be used instead of the show ip route command whenever possible.
 
Q.12 What minimum configurations must be set on a host to allow a request to be sent to http://www.cisco.com/? (Choose four.)
 DNS server
 WINS server
 IP address
 NetBIOS
 subnet mask
 default gateway

Q.13 A Catalyst 2960 switch has been taken out of storage to be used as a temporary replacement for another switch that needs to be repaired. About a minute after the switch has started, the SYST LED on the front of the switch transitions from blinking green to amber. What is the meaning of the amber SYST LED ?
 The switch has no configuration file in NVRAM.
 The switch has failed POST and must be sent for service.
 The switch is functioning properly.
 The switch is in half-duplex mode.
Q.14 Refer to the exhibit. Which combination of cables and symbols is correct ?
 A – crossover, B – straight-through, C – straight-through
 A – crossover, B – rollover, C – straight-through
 A – straight-through, B – crossover, C – straight-through
 A – straight-through, B – straight-through, C – straight-through
 A – straight-through, B – straight-through, C – crossover
 A – rollover, B – straight-through, C – straight-through
Q.15 After an unsuccessful ping to the local router, the technician decides to investigate the router. The technician observes that the lights and fan on the router are not operational. In which layer of the OSI model is the problem most likely occurring ?
 transport
 network
 data link
 physical

Q.16 What are three characteristics of the TCP protocol ? (Choose three.)
 exchanges datagrams unreliably
 is used to send IP error messages
 forces the retransmission of unacknowledged packets
 creates a virtual session between end-user applications
 carries the IP address of the destination host in the TCP header
 is responsible for breaking messages into segments and reassembling them at their destination
Q.17 Refer to the exhibit. The network shown is connected using services from the same ISP. How will the Fohi router dynamically learn routes to the 192.168.16.16/28, 192.168.16.32/28, and 192.168.16.64/28 subnetworks ?
 with BGP
 with a static route
 with a directly connected route
 with an interior routing protocol
Q.18 Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1 ?
 rollover
 console
 crossover
 straight-through

Q.19 When customers use credit cards to make purchases at a small business, a modem is heard dialing a telephone number to transfer the transaction data to the central office. What type of WAN serial connection is in use ?
 leased line
 packet switched
 circuit switched
 point-to-point
Q.20 A user reports being unable to access the Internet. The help desk technician employs a bottom-up approach to troubleshooting. The technician first has the user check the patch cable connection from the PC to the wall, and then has the user verify that the NIC has a green link lght. What will the technician have the user do next ?
 Enter an IP address into the WWW browser address bar to see if DNS is at fault.
 Use traceroute to identify the device along the path to the ISP that may be at fault.
 Verify the IP address, subnet, and gateway settings using ipconfig on the PC.
 Connect to the user home router to check firewall settings for blocked TCP ports.

Q.21 A ping 192.1.1.20 command is issued on workstation A to determine if workstation B can be reached. What events will occur if this command is successful ? (Choose two.)
 The router will block the ping request message.
 The router will reply to the echo request with a proxy ping response.
 Workstation A will send a UDP ping request message to workstation B.
 Workstation B will send a UDP ping reply message to workstation A.
 Workstation A will send an ICMP echo request message to workstation B.
 Workstation B will send an ICMP echo reply message to workstation A.

Q.22 How does a router know of paths to destination networks? (Choose two.)
 inspection of the destination IP address in data packets
 ARP requests from connected routers
 manual configuration of routes
 updates from other routers
 DHCP information broadcasts
 updates from the SMTP management information base
Q.23 Refer to the exhibit. Which two statements describe the data conversation shown ? (Choose two.)

 The data conversation was started by the HTTP application process running on the client.
 The data conversation is identified by TCP port 80 on the client.
 The user started the data conversation by sending an e-mail.
 The IP address of the Internet server is 192.168.17.43.
 The Internet server will send data to port 8547 on the client.

Q.24 What is one purpose of the TCP three-way handshake ?
 sending echo requests from the source to the destination host to establish the presence of the destination
 determining the IP address of the destination host in preparation for data transfer
 requesting the destination to transfer a binary file to the source
 synchronizing sequence numbers between source and destination in preparation for data transfer

Q.25 Which type of address is 192.168.17.111/28 ?
 host address
 network address
 broadcast address
 multicast address
Q.26 A customer reports connectivity problems to an ISP technician. Upon questioning the customer, the technician discovers that all network applications are functioning except for FTP. What should the technician suspect is the problem ?
 misconfigured firewall
 bad port on switch or hub
 misconfigured IP addressing on the customer’s workstation
 wrong DNS server configured on the customer’s workstation
 wrong default gateway configured on the customer’s workstation
Q.27 The show ip route command was executed on one of the routers shown in the graphic and the following output was displayed :
C 192.168.4.0/24 is directly connected, Serial0/0
R 192.168.5.0/24 [120/1] via 192.168.4.2, 00:00:19, Serial0/0
R 192.168.1.0/24 [120/2] via 192.168.3.1, 00:00:20, Serial0/1
R 192.168.2.0/24[120/2] via 192.168.3.1, 00:00:20, Serial0/1
C 192.168.3.0/24 is directly connected, Serial0/1
From which router was this command executed ?
 A
 B
 C
 D
Q.28 Refer to the exhibit. Which two sets of commands are required to configure passwords for all management ports on a Catalyst 2960 switch ? (Choose two.)
 ALSwitch(config)# interface vlan 1
     ALSwitch(config-if)# password cisco
     ALSwitch(config-if)# login
 ALSwitch(config)# line vty 0 4
     ALSwitch(config-line)# password cisco
     ALSwitch(config-line)# login
 ALSwitch(config)# line vty 0 15
     ALSwitch(config-line)# password cisco
     ALSwitch(config-line)# login
ALSwitch(config)# enable secret class
     ALSwitch(config)# enable password cisco
 ALSwitch(config)# interface fa0/1
     ALSwitch(config-if)# password cisco
     ALSwitch(config-if)# no shutdown
 ALSwitch(config)# line cons 0
     ALSwitch(config-line)# password cisco
     ALSwitch(config-line)# login
Q.29 A user reports being able to access the Internet but not being able to download e-mail from the mail server at the ISP. What should the user check on the user workstation ?
 the POP3 and SMTP server settings in the e-mail application
 the patch cable connections at the back of the workstation and at the wall plate
 the DHCP settings in the operating system
 the IP address, mask, and default gateway values
 the NIC drivers
Q.30 Refer to the graphic. Which command will configure a static route on Router A to direct traffic from LAN A that is destined for LAN C ?
 RouterA(config)# ip route 192.168.4.0 255.255.255.0 192.168.5.2
 RouterA(config)# ip route 192.168.4.0 255.255.255.0 192.168.3.2
 RouterA(config)# ip route 192.168.5.0 255.255.255.0 192.168.3.2
 RouterA(config)# ip route 192.168.3.0 255.255.255.0 192.168.3.1
 RouterA(config)# ip route 192.168.3.2 255.255.255.0 192.168.4.0
Q.31 Which subnet masks could be used when subnetting a Class B IP address? (Choose two.)
 255.255.255.240
 255.255.192.0
 255.255.0.0
 255.192.0.0
 240.0.0.0
 255.0.0.0

Q.32 Refer to the exhibit. The network administrator has configured the RTA and RTB interfaces. In order to allow hosts that are attached to RTA to reach the server that is attached to RTB, a static route from RTA to the server LAN and a default route from RTB back to RTA need to be configured. Which two commands will the administrator use to accomplish these tasks on the two routers? (Choose two.)
 RTA(config)# ip route 255.255.255.252 10.16.10.6
 RTA(config)# ip route 0.0.0.0 0.0.0.0 10.16.10.6
 RTA(config)# ip route 10.16.10.96 255.255.255.252 10.16.10.6
 RTB(config)# ip route 10.16.10.6 255.255.255.248 10.16.10.6
 RTB(config)# ip route 0.0.0.0 0.0.0.0 S0/0/1
 RTB(config)# ip route 0.0.0.0 0.0.0.0 10.16.10.6
Q.33 How do port filtering and access lists help provide network security ?
 They prevent specified types of traffic from reaching specified network destinations.
 They alert network administrators to various type of denial of service attacks as they occur.
 They prevent viruses, worms, and Trojans from infecting host computers and servers.
 They enable encryption and authentication of confidential data communications.
Q.34 Refer to the exhibit. The network administrator of the building in the graphic needs to choose the type of cable best suited to add ServerB to the network. Which cable type is the best choice ?
 STP
 UTP
 coaxial
 fiber optic

Q.35 What is used by a routing protocol to determine the best path to include in the routing table ?
 Convergence time
 Default distance
 Metric
 Type of router
Q.36 Refer to the exhibit. Which IP addresses could be assigned to the hosts in the diagram ? (Choose two.)
 192.168.65.31
 192.168.65.32
 192.168.65.35
 192.168.65.60
 192.168.65.63
 192.168.65.64
Q.37 Given the network 192.168.25.0 shown in the graphic, which subnet mask would accommodate the number of hosts in each subnet ?
 255.255.0.0
 255.255.224.0
 255.255.255.0
 255.255.255.224
 255.255.255.240
 255.255.255.248
Q.38 Which two protocols allow network devices to report their status and events to a centralized network management device ? (Choose two.)
 Syslog
 Telnet
 HTTP
 HTTPS
 SNMP

Q.39 What is true regarding the differences between NAT and PAT ?
 PAT uses the word “overload” at the end of the access-list statement to share a single registered address.
 Static NAT allows an unregistered address to map to multiple registered addresses.
 Dynamic NAT allows hosts to receive the same global address each time external access is required.
 PAT uses unique source port numbers to distinguish between translations.

Q.40 Refer to the exhibit. The graphic shows the output of a command issued on router RTB. According to the output, what two statements are true of router RTB ? (Choose two.)
 The router is connected to a router named Boise.
 Router RTB is connected to a Cisco 1841 router.
 Router RTB is directly connected to two other routers.
 The IP address of the router interface connected to router RTB is 192.168.2.6.
 The RTB router is connected to two Cisco devices by Fast Ethernet links.
Q.41 Refer to the exhibit. The network administrator uses the command below to configure a default route to the ISP network :
RTB(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.6
A ping issued from the ISP is successful to router RTB. However, ping echo request packets arrive at a host that is attached to the Fa0/0 interface of RTB, and the replies do not make it back to the ISP router. What will fix this problem ?
 The ISP must be configured to forward packets from the 192.168.1.0 network.
 The ip route command needs to be edited so that the next hop address is 10.1.1.5.
 The ip route command needs to be edited so that the 192.168.1.1 address is the next hop address.
 The ip route command should be removed from the RTB router configuration.
Q.42 A network technician is using anetwork management station to gather data about the performance of devices and links within the ISP. Which application layer protocol makes this possible ?
 SNMP
 FTP
 DHCP
 SMTP
Q.43 What are two purposes of DNS ? (Choose two.)
 to dynamically assign IP addressing information to network hosts
 to simplify the administration of host and default gateway addressing on client computers
 to assign TCP port numbers to hosts as part of the data transfer process
 to resolve human-readable domain names to numeric IP addresses
 to replace the static HOSTS file with a more practical dynamic system

Q.44 A hacker attempts to reach confidential information that is stored on a server inside the corporate network. A network security solution inspects the entire packet, determines that it is a threat, and blocks the packet from entering the inside network. Which security measure protected the network ?
 an IDS
 an IPS
 a host-based firewall
 Anti-X software
Q.45 How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network address with a subnet mask of 255.255.248.0 ?
 30
 256
 2046
 2048
 4094
 4096
Q.46 In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another ?
 destination network address
 source network address
 source MAC address
 well known port destination address
Q.47 A small tire retailer requires a low-cost WAN connection to its headquarters in order to manage its inventory and process customer sales in real time. Which WAN connection type is best suited to its needs ?
 Sonet
 T3
 dialup
 DSL
 leased line
Q.48 The command copy tftp running-config has been entered on the router. What will this command do ?
 copy the configuration in RAM to a server
 copy the configuration file from a server to RAM
 copy the configuration file in NVRAM to RAM
 copy the configuration file in NVRAM to a server
 copy the configuration file from a server to NVRAM
Q.49 Refer to the exhibit. The network administrator needs to configure the Fa0/0 interface of RTB so that hosts from RTA can connect to the server that is attached to RTB. Which two commands will the administrator use to accomplish this task ? (Choose two.)
 RTB# ipaddress 192.168.102.98 255.255.255.248
 RTB(config-if)# ip address 192.168.102.99 255.255.255.252
 RTB(config)# ip address 192.168.102.97 255.255.255.252
 RTB(config)# no shutdown
 RTB(config-if)# no shutdown
 RTB(config-if)# ip address 192.168.102.97 255.255.255.252
Q.50 Refer to the exhibit. A NOC technician at an ISP enters the command shown. What are two reasons to use this command ? (Choose two.)
 to map the path to 192.168.1.7
 to test reachability to 192.168.1.7
 to locate connectivity problems along the route to 192.168.1.7
 to identify the ISPs that interconnect the NOC with the remote host with the address 192.168.1.7
 to measure the time that packets take to reach 192.168.1.7 and return to the technician’s workstation
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