CCNA4 Final 2010

1	Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router? PPP SLIP HDLC Frame Relay
2	What is a characteristic feature of a worm? exploits a known vulnerability attaches to executable programs masquerades as a legitmate program lies dormant until triggered by an event, time, or date

3	An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem? When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are over-written in favor of the newer technology. Incorrect IPv4 addresses are entered on the router interfaces. RIPng is incompatible with dual-stack technology. IPv4 is incompatible with RIPng.
4	Which statement accurately describes a characteristic of a security policy? It creates a basis for legal action if necessary. It should not need altering once it is implemented. It provides step-by-step procedures to harden routers and other network devices. It is kept private from users to prevent the possibility of circumvention of security measures.

5	Which characteristic of VPN technology prevents the contents of data communications from being read by unauthorized parties? QoS latency reliability confidentiality
6	Refer to the exhibit. A network administrator is configuring Frame Relay on router HQ. It is desired that each Frame Relay PVC between the routers be in a separate subnet. Which two commands on HQ will accomplish this task for the connection to R1? (Choose two.) HQ(config)# interface S0/0/0 HQ(config)# interface S0/0/0.1 multipoint HQ(config)# interface S0/0/0.1 point-to-point HQ(config-subif)# frame-relay interface dlci 103 HQ(config-subif)# frame-relay interface dlci 301 HQ(config-if)# frame-relay map ip 172.16.1.1 255.255.255.0 301 broadcast

7	Refer to the exhibit. Router1 and Router2 are directly connected over a point-to-point serial link. Router1 initiates a PPP session with Router2. Which statement is true based on the configuration? The password is sent in clear text. The routers are unable to authenticate. The username and password are sent encrypted. A hash value of the username and password are sent.
8	A technician has been asked to run Cisco SDM one-step lockdown on the router of a customer. What will be the result of this process? Traffic is only forwarded from SDM-trusted Cisco routers. Security testing is performed and the results are saved as a text file stored in NVRAM. The router is tested for potential security problems and any necessary changes are made. All traffic entering the router is quarantined and checked for viruses before being forwarded.

9	Which two statements are true about creating and applying access lists? (Choose two.) There is an implicit deny at the end of all access lists. One access list per port, per protocol, per direction is permitted. Access list entries should filter in the order from general to specific. The term "inbound" refers to traffic that enters the network from the router interface where the ACL is applied. Standard ACLs should be applied closest to the source while extended ACLs should be applied closest to the destination.
10	Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and Server2 run applications which require end-to-end functionality, with unmodified packets that are forwarded from the source to the destination. The edge routers R1 and R2 support dual stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices? a new WAN service supporting only IPv6 NAT overload to map inside IPv6 addresses to outside IPv4 address a manually configured IPv6 tunnel between the edge routers R1 and R2 static NAT to map inside IPv6 addresses of the servers to an outside IPv4 address and dynamic NAT for the rest of the inside IPv6 addresses

11	A company uses a PVC with a committed information rate (CIR) of 128 kb/s and a committed burst information rate (CBIR) of 64 kb/s. The link is used to periodically send updates at a rate of 144 kb/s. What will happen to the update traffic? The traffic will be sent, but the company will be charged a penalty. The traffic will be sent using the additional CBIR and will be guaranteed delivery. The traffic will be dropped at the CO for exceeding the committed information rate. The traffic will be sent, but the burst traffic will be marked for discard if congestion is encountered.
12	Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem? The default gateway is in the wrong subnet. STP has blocked the port that PC1 is connected to. Port Fa0/2 on S2 is assigned to the wrong VLAN. S2 has the wrong IP address assigned to the VLAN30 interface.

13	A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned two public IP addresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten users at the same time? Configure DHCP and static NAT. Configure dynamic NAT for ten users. Configure static NAT for all ten users. Configure dynamic NAT with overload.
14	Refer to the exhibit. From the output of the show interfaces and ping commands, at which layer of the OSI model is a fault indicated? application transport network data link physical

15	Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2? There is a Layer 2 loop. The VTP domain names do not match. Only one switch can be in server mode. S2 has a higher spanning-tree priority for VLAN 11 than S1 does.
16	Refer to the exhibit. What is the effect of the extended ACL when applied inbound on the S0/0/0 interface on R2? All IP traffic will be permitted during the specified days and time range. Both IP and Telnet traffic will be permitted during the specified days and time range. Only Telnet traffic destined for 172.16.10.0/24 will be permitted during the specified days and time range. Telnet traffic will be permitted only during the specified days and time range. All other network traffic will be permitted any time.

17	Which three guidelines would help contribute to creating a strong password policy? (Choose three.) Once a good password is created, do not change it. Deliberately misspell words when creating passwords. Create passwords that are at least 8 characters in length. Use combinations of upper case, lower case, and special characters. Write passwords in locations that can be easily retrieved to avoid being locked out. Use long words found in the dictionary to make passwords that are easy to remember.
18	Refer to the exhibit. How is the TCP/IP configuration information specified by the default-router and dns-server commands made available? The TCP/IP information is forwarded to a 10.0.1.3 to be supplied to DHCP clients. The TCP/IP information is used by DNS clients to forward all data to the default gateway on R1 of 10.0.1.3. The TCP/IP information is supplied to any DHCP client on the network connected to the FastEthernet 0/0 interface of R1. The TCP/IP information is applied to each packet that enters R1 through the FastEthernet 0/0 interface that are hosts on the 10.0.1.0 /24 network except packets from addresses 10.0.1.2, 10.0.1.16, and 10.0.1.254.

19	Which variable is permitted or denied by a standard access control list? protocol type source IP address source MAC address destination IP address destination MAC address
20	When configuring a Frame Relay connection, what is the purpose of Inverse ARP? to assign a DLCI to a remote peer to disable peer requests from determining local Layer 3 addresses to negotiate LMI encapsulations between local and remote Frame Relay peers to create a mapping of DLCI to Layer 3 addresses that belong to remote peers

21	An issue of response time has recently arisen on an application server. The new release of a software package has also been installed on the server. The configuration of the network has changed recently. To identify the problem, individuals from both teams responsible for the recent changes begin to investigate the source of the problem. Which statement applies to this situation? Scheduling will be easy if the network and software teams work independently. It will be difficult to isolate the problem if two teams are implementing changes independently. Results from changes will be easier to reconcile and document if each team works in isolation. Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.
22	What is the result when the command permit tcp 10.25.132.0 0.0.0.255 any eq smtp is added to a named access control list and applied on the inbound interface of a router? TCP traffic with a destination to the 10.25.132.0/24 is permitted. Only Telnet traffic is permitted to the 10.24.132.0/24 network Ttraffic from 10.25.132.0/24 is permitted to anywhere on using any port. Traffic using port 25 from the 10.25.132.0/24 is permitted to all destinations.

23	At what point in the PPP connection process does the authentication phase occur? after NCP establishes Layer 3 parameters before LCP begins the link establishment process after the initial Configure-Request message from the link initiator after the link initiator receives a Configure-Ack message from the responder
24	An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can successfully resolve the mail server name to an IP address via the use of the nslookup command. At what OSI layer is the problem most likely to be found? physical layer data link layer network layer application layer

25	Refer to the exhibit. Which statement is true about the Frame Relay connection? The Frame Relay connection is in the process of negotiation. A congestion control mechanism is enabled on the Frame Relay connection. The “ACTIVE” status of the Frame Relay connection indicates that the network is experiencing congestion. Only control FECN and BECN bits are sent over the Frame Relay connection. No data traffic traverses the link.
26	A light manufacturing company wishes to replace its DSL service with a non-line-of-sight broadband wireless solution that offers comparable speeds. Which solution should the customer choose? Wi-Fi satellite WiMAX Metro Ethernet

27	Refer to the exhibit. This router is being configured to use SDM, but the SDM interface of the router cannot be accessed. What is the cause of the problem? The VTY lines are not configured correctly. The HTTP timeout policy is not configured correctly. The authentication method is not configured correctly. The username and password are not configured correctly.
28	Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider? BE DE CIR CBIR

29	Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC router to the Orlando router? DLCI 123 DLCI 321 10.10.10.25 10.10.10.26 MAC address of the Orlando router
30	Where does a service provider assume responsibility from a customer for a WAN connection? local loop DTE cable on router demarcation point demilitarized zone

31	A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.) reduced jitter reduced costs reduced latency the ability to burst above guaranteed bandwidth the ability to borrow unused bandwidth from the leased lines of other customers
32	Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP server. The output of the debug ip dhcp server command shows "DHCPD: there is no address pool for 192.168.3.17". What is the problem? The address 192.168.3.17 address is already in use by Fa0/0. The pool of addresses for the 192Network pool is configured incorrectly. The ip helper-address command should be used on the Fa0/0 interface. The 192.168.3.17 address has not been excluded from the 192Network pool.

33	A network administrator is tasked with maintaining two remote locations in the same city. Both locations use the same service provider and have the same service plan for DSL service. When comparing download rates, it is noticed that the location on the East side of town has a faster download rate than the location on the West side of town. How can this be explained? The West side has a high volume of POTS traffic. The West side of town is downloading larger packets. The service provider is closer to the location on the East side. More clients share a connection to the DSLAM on the West side.
34	Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers? ATM Frame Relay HDLC PPP SDLC

35	Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP? flow control error control authentication synchronous communication
36	When NAT is in use, what is used to determine the addresses that can be translated on a Cisco router? access control list routing protocol inbound interface ARP cache

37	Refer to the exhibit. What statement is true about the core router devices? They use multiport internetworking devices to switch traffic such as Frame Relay, ATM, or X.25 over the WAN. They provide internetworking and WAN access interface ports that are used to connect to the service provider network. They provide termination for the digital signal and ensure connection integrity through error correction and line monitoring. They support multiple telecommunications interfaces of the highest speed and are able to forward IP packets at full speed on all of those interfaces.
38	Refer to the exhibit. A network administrator has issued the commands that are shown on Router1 and Router2. A later review of the routing tables reveals that neither router is learning the LAN network of the neighbor router. What is most likely the problem with the RIPng configuration? The serial interfaces are in different subnets. The RIPng process is not enabled on interfaces. The RIPng processes do not match between Router1 and Router2. The RIPng network command is missing from the IPv6 RIP configuration.

39	Which two protocols in combination should be used to establish a link with secure authentication between a Cisco and a non-Cisco router? (Choose two.) HDLC PPP SLIP PAP CHAP
40	Refer to the exhibit. This serial interface is not functioning correctly. Based on the output shown, what is the most likely cause? improper LMI type interface reset PPP negotiation failure unplugged cable

41	Which statement is true about NCP? Link termination is the responsibility of NCP. Each network protocol has a corresponding NCP. NCP establishes the initial link between PPP devices. NCP tests the link to ensure that the link quality is sufficient.
42	Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request packet that enters interface S0/0/0, and is destined for an FTP server at IP address 172.16.1.5? The router matches the incoming packet to the statement that is created by access-list 201 permit ip any any command and allows the packet into the router. The router reaches the end of ACL 101 without matching a condition and drops the packet because there is no statement that was created by access-list 101 permit ip any any command. The router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 172.16.1.0 0.0.0.255 command, ignores the remaining statements in ACL 101, and allows the packet into the router. The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 172.16.1.0 0.0.0.255 any command, continues comparing the packet to the remaining statements in ACL 201 to ensure that no subsequent statements allow FTP, and then the router drops the packet.

43	Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing updates. What will fix the issue? Enable RIP authentication on R2. Issue the ip directed-broadcast command on R2. Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2. Enable CDP on R2 so that the other routers will receive routing updates.
44	Refer to the exhibit. What happens if the network administrator issues the commands shown when an ACL called Managers already exists on the router? The commands overwrite the existing Managers ACL. The commands are added at the end of the existing Managers ACL. The network administrator receives an error stating that the ACL already exists. The commands will create a duplicate Managers ACL containing only the new commands being entered.

45	Which security solution has the responsibility of monitoring suspicious processes that are running on a host and that might indicate infection of Trojan horse applications? antivirus application operating system patches intrusion prevention system Cisco Adaptive Security Appliance
46	Which statement is true about wildcard masks? A wildcard mask must be created by inverting the subnet mask. A wildcard mask performs the same function as a subnet mask. A wildcard mask of 0.0.0.0 means the address should match exactly. A wildcard mask uses a "1" to identify IP address bits that must be checked.

47	Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What is an action that can help to isolate this problem? Use correct source file name in the command. Verify that the TFTP server software is running. Make sure that there is enough room on the TFTP server for the backup. Check that R1 has a route to the network where the TFTP server resides.
48	Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, the communication between the two routers cannot be established. Based on the output of the commands, what can be done to solve the problem? Replace the serial cable . Replace the WIC on RA. Configure RA with a clock rate command. Issue a no shutdown interface command on RB.

49	Refer to the exhibit. From the output of the show interface commands, at which OSI layer is a fault indicated? application transport network data link physical
50	Which type of ACL will permit traffic inbound into a private network only if an outbound session has already been established between the source and destination? extended reflexive standard time-based

51	Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP at speeds comparable to DSL and cable? Wi-Fi satellite WiMAX Metro Ethernet
52	Which option represents a best practice for applying ACLs? Named ACLs are less efficient than numbered ACLs. Standard ACLs should be applied inside the core layer. ACLs applied to outbound interfaces use fewer router resources. Extended ACLs should be applied closest to the source that is specified by the ACL.