Parte 3

The network manager has requested a 300-workstation expansion of the network. The workstations are to be installed in a single broadcast domain, but each workstation must have its own collision domain. The expansion is to be as cost-effective as possible while still meeting the requirements. Which three items will adequately fulfill the request? (Choose three). One IP subnet with a mask of 255.255.254.0. Two IP subnets with a mask of 255.255.255.0. Seven 48-port hubs. Seven 48-port switches. One router interface. Seven router interfaces.

Which of the following IP addresses are valid Class B host addresses if a default Class B mask is in use? (Choose two.). 10.6.8.35. 133.6.5.4. 192.168.5.9. 127.0.0.1. 190.6.5.4.

Which statements are TRUE regarding Internet Protocol version 6 (IPv6) addresses? (Choose three.). An IPv6 address is divided into eight 16-bit groups. A double colon (::) can only be used once in a single IPv6 address. IPv6 addresses are 196 bits in length. Leading zeros cannot be omitted in an IPv6 address. Groups with a value of 0 can be represented with a single 0 in IPv6 address.

Some routers have been configured with default routes. What are some of the advantages of using default routes? (Choose two). They establish routes that will never go down. They keep routing tables small. They require a great deal of CPU power. They allow connectivity to remote networks that are not in the routing table. They direct traffic from the internet into corporate networks.

After the network has converged, what type of messaging, if any, occurs between R3 and R4?. No messages are exchanged. Hellos are sent every 10 seconds. The full database from each router is sent every 30 seconds. The routing table from each router is sent every 60 seconds.

What is the default administrative distance of OSPF?. 90. 100. 110. 120.

Refer to the output of the corporate router routing table shown in the graphic. The corporate router receives an IP packet with a source IP address of 192.168.214.20 and a destination address of 192.168.22.3. What will the router do with this packet?. It will encapsulate the packet as Frame Relay and forward it out interface Serial 0/0.117. It will discard the packet and send an ICMP Destination Unreachable message out interface FastEthernet 0/0. It will forward the packet out interface Serial 0/1 and send an ICMP Echo Reply message out interface serial 0/0.102. It will change the IP packet to an ARP frame and forward it out FastEthernet 0/0.

Refer to the exhibit. If the router Cisco returns the given output and has not had its router ID set manually, what value will OSPF use as its router ID?. 192.168.1.1. 172.16.1.1. 1.1.1.1. 2.2.2.2.

A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782. The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?. the OSPF route. the EIGRP route. the RIPv2 route. all three routes. the OSPF and RIPv2 routes.

Refer to the graphic. R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem? (Choose two.). All of the routers need to be configured for backbone Area 1. R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established. The hello and dead interval timers are not set to the same values on R1 and R3. EIGRP is also configured on these routers with a lower administrative distance. R1 and R3 are configured in different areas.

What information can be used by a router running a link-state protocol to build and maintain its topological database? (Choose two.). hello packets. SAP messages sent by other routers. LSAs from other routers. beacons received on point-to-point links. routing tables received from other link-state routers. TTL packets from designated routers.

Refer to the exhibit. Which two statements are correct? (Choose two.). This is a default route. Adding the subnet mask is optional for the ip route command. This will allow any host on the 172.16.1.0 network to reach all known destinations beyond RouterA. This command is incorrect, it needs to specify the interface, such as s0/0/0 rather than an IP address. The same command needs to be entered on RouterA so that hosts on the 172.16.1.0 network can reach network 10.0.0.0.

Refer to the exhibit. The enterprise has decided to use the network address 172.16.0.0. The network administrator needs to design a classful addressing scheme to accommodate the three subnets, with 30, 40, and 50 hosts, as shown. What subnet mask would accommodate this network?. 255.255.255.192. 255.255.255.224. 255.255.255.240. 255.255.255.248. 255.255.255.252.

Refer to the exhibit. Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this router?. 10.1.1.2. 10.154.154.1. 172.16.5.1. 192.168.5.3.

Which two of these functions do routers perform on packets? (Choose two.). Examine the Layer 2 headers of inbound packets and use that information to determine the next hops for the packets. Update the Layer 2 headers of outbound packets with the MAC addresses of the next hops. Examine the Layer 3 headers of inbound packets and use that information to determine the next hops for the packets. Examine the Layer 3 headers of inbound packets and use that information to determine the complete paths along which the packets will be routed to their ultimate destinations. Update the Layer 3 headers of outbound packets so that the packets are properly directed to valid next hops. Update the Layer 3 headers of outbound packets so that the packets are properly directed to their ultimate destinations.

Refer to the exhibit. Why are two OSPF designated routers identified on Core-Router?. Core-Router is connected to more than one multi-access network. The router at 208.149.23.130 is a secondary DR in case the primary fails. Two router IDs have the same OSPF priority and are therefore tied for DR election. The DR election is still underway and there are two contenders for the role.

What does administrative distance refer to?. the cost of a link between two neighboring routers. the advertised cost to reach a network. the cost to reach a network that is administratively set. a measure of the trustworthiness of a routing information source.

Which IP address is a private address?. 12.0.0.1. 168.172.19.39. 172.20.14.36. 172.33.194.30. 192.169.42.34.

Refer to the exhibit. If the resume command is entered after the sequence that is shown in the exhibit, which router prompt will be displayed?. Router1>. Router1#. Router2>. Router2#.

A network administrator is trying to add a new router into an established OSPF network. The networks attached to the new router do not appear in the routing tables of the other OSPF routers. Given the information in the partial configuration shown below, what configuration error is causing this problem? Router(config)# router ospf 1 Router(config-router)# network 10.0.0.0 255.0.0.0 area 0. The process id is configured improperly. The OSPF area is configured improperly. The network wildcard mask is configured improperly. The network number is configured improperly. The AS is configured improperly. The network subnet mask is configured improperly.

Which statement is true?. An IPv6 address is 64 bits long and is represented as hexadecimal characters. An IPv6 address is 32 bits long and is represented as decimal digits. An IPv6 address is 128 bits long and is represented as decimal digits. An IPv6 address is 128 bits long and is represented as hexadecimal characters.

Which statement describes the process ID that is used to run OSPF on a router?. It is globally significant and is used to represent the AS number. It is locally significant and is used to identify an instance of the OSPF database. It is globally significant and is used to identify OSPF stub areas. It is locally significant and must be the same throughout an area.

Why do large OSPF networks use a hierarchical design? (Choose three.). to decrease latency by increasing bandwidth. to reduce routing overhead. to speed up convergence. to confine network instability to single areas of the network. to reduce the complexity of router configuration. to lower costs by replacing routers with distribution layer switches.

Which one of the following IP addresses is the last valid host in the subnet using mask 255.255.255.224?. 192.168.2.63. 192.168.2.62. 192.168.2.61. 192.168.2.60. 192.168.2.32.

What command sequence will configure a router to run OSPF and add network 10.1.1.0 /24 to area 0?. router ospf area 0 network 10.1.1.0 255.255.255.0 area 0. router ospf network 10.1.1.0 0.0.0.255. router ospf 1 network 10.1.1.0 0.0.0.255 area 0. router ospf area 0 network 10.1.1.0 0.0.0.255 area 0. router ospf network 10.1.1.0 255.255.255.0 area 0. router ospf 1 network 10.1.1.0 0.0.0.255.

On a live network, which commands will verify the operational status of router interfaces? (Choose two.). Router# show interfaces. Router# show ip protocols. Router# debug interface. Router# show ip interface brief. Router# show start.

Refer to the exhibit. The two routers have had their startup configurations cleared and have been restarted. At a minimum, what must the administrator do to enable CDP to exchange information between R1 and R2?. Configure the router with the cdp enable command. Enter no shutdown commands on the R1 and R2 fa0/1 interfaces. Configure IP addressing and no shutdown commands on both the R1 and R2 fa0/1 interfaces. Configure IP addressing and no shutdown commands on either of the R1 or R2 fa0/1 interfaces.

Which commands are required to properly configure a router to run OSPF and to add network 192.168.16.0/24 to OSPF area 0? (Choose two.). Router(config)# router ospf 0. Router(config)# router ospf 1. Router(config)# router ospf area 0. Router(config-router)# network 192.168.16.0 0.0.0.255 0. E. Router(config-router)# network 192.168.16.0 0.0.0.255 area 0. Router(config-router)# network 192.168.16.0 255.255.255.0 area 0.

Which command is used to display the collection of OSPF link states?. show ip ospf link-state. show ip ospf lsa database. show ip ospf neighbors. show ip ospf database.

OSPF routing uses the concept of areas. What are the characteristics of OSPF areas? (Choose Three.). Each OSPF area requires a loopback interface to be configured. Areas may be assigned any number from 0 to 65535. Area 0 is called the backbone area. Hierarchical OSPF networks do not require multiple areas. Multiple OSPF areas must connect to area 0. Single area OSPF networks must be configured in area 1.

An administrator is working with the 192.168.4.0 network, which has been subnetted with a /26 mask. Which two addresses can be assigned to hosts within the same subnet? (Choose two.). 192.168.4.61. 192.168.4.63. 192.168.4.67. 192.168.4.125. 192.168.4.128. 192.168.4.132.

Which IOS command is used to initiate a login into a VTY port on a remote router?. router# login. router# telnet. router# trace. router# ping. router(config)# line vty 0 5. router(config-line)# login.

Which address are OSPF hello packets addressed to on point-to-point networks?. 224.0.0.5. 172.16.0.1. 192.168.0.5. 223.0.0.1. 254.255.255.255.

What is the subnet address for the IP address 172.19.20.23/28?. 172.19.20.0. 172.19.20.15. 172.19.20.16. 172.19.20.20. 172.19.20.32.

What two things does a router do when it forwards a packet? (Choose two.). switches the packet to the appropriate outgoing interfaces. computes the destination host address. determines the next hop on the path. updates the destination IP address. forwards ARP requests.

Refer to the exhibit. When running OSPF, what would cause router A not to form an adjacency with router B?. The loopback addresses are on different subnets. The values of the dead timers on the routers are different. Route summarization is enabled on both routers. The process identifier on router A is different than the process identifier on router B.

What is the subnet address of 172.16.159.159/22?. 172.16.0.0. 172.16.128.0. 172.16.156.0. 172.16.159.0. 172.16.159.128. 172.16.192.0.

What is the network address for the host with IP address 192.168.23.61/28?. 192.168.23.0. 192.168.23.32. 192.168.23.48. 192.168.23.56. 192.168.23.60.

Given a Class C IP address subnetted with a /30 subnet mask, how many valid host IP addresses are available on each of the subnets?. 1. 2. 4. 8. 252. 254.

QUESTION 140 Scenario Refer to the topology. Your company has decided to connect the main office with three other remote branch offices using point-to-point serial links. You are required to troubleshoot and resolve OSPF neighbor adjacency issues between the main office and the routers located in the remote branch offices. An OSPF neighbor adjacency is not formed between R3 in the main office and R5 in the Branch2 office. What is causing the problem?. There is an area ID mismatch. There is a PPP authentication issue; a password mismatch. There is an OSPF hello and dead interval mismatch. There is a missing network command in the OSPF process on R5.

What does the "Inside Global" address represent in the configuration of NAT?. the summarized address for all of the internal subnetted addresses. the MAC address of the router used by inside hosts to connect to the Internet. a globally unique, private IP address assigned to a host on the inside network. a registered address that represents an inside host to an outside network.

The ip helper-address command does what?. assigns an IP address to a host. resolves an IP address from a DNS server. relays a DHCP request across networks. resolves an IP address overlapping issue.

When configuring NAT, the Internet interface is considered to be what?. local. inside. global. outside.

Drag the definition on the left to the correct term on the right. Not all definitions on the left will be used. a protocol that converts human-readable names into machine-readable addresses. used to assign IP addresses automatically and set parameters such as subnet mask and default gateway. a protocol for using HTTP or HTTPS to exchange XML-based messages over computer networks. a connectionless service that uses UDP to transfer files between systems. a protocol used to monitor and manage network devices. a reliable connection-oriented service that uses TCP to transfer files between systems.

At which OSI layer should the administrator begin troubleshooting?. physical. data link. network. transport.

Refer to the exhibit. A company wants to use NAT in the network shown. Which commands will apply the NAT configuration to the proper interfaces? (Choose two.). R1(config)# interface serial0/1 R1(config-if)# ip nat inside. R1(config)# interface serial0/1 R1(config-if)# ip nat outside. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat inside. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat outside. R1(config)# interface serial0/1 R1(config-if)# ip nat outside source pool 200.2.2.18 255.255.255.252. R1(config)# interface fastethernet0/0 R1(config-if)# ip nat inside source 10.10.0.0 255.255.255.0.

What happens when computers on a private network attempt to connect to the Internet through a Cisco router running PAT?. The router uses the same IP address but a different TCP source port number for each connection. An IP address is assigned based on the priority of the computer requesting the connection. The router selects an address from a pool of one-to-one address mappings held in the lookup table. The router assigns a unique IP address from a pool of legally registered addresses for the duration of the connection.

Various protocols are listed on the left. On the right are applications for the use of those protocols. Drag the protocol on the left to an associated function for that protocol on the right. (Not all options are used.). ICMP. DHCP. RARP. UDP. DNS. ARP.

Which of the following statements are TRUE regarding Cisco access lists? (Choose two.). In an inbound access list, packets are filtered as they enter an interface. In an inbound access list, packets are filtered before they exit an interface. Extended access lists are used to filter protocol-specific packets. You must specify a deny statement at the end of each access list to filter unwanted traffic. When a line is added to an existing access list, it is inserted at the beginning of the access list.

How many addresses will be available for dynamic NAT translation when a router is configured with the following commands? Router(config)#ip nat pool TAME 209.165.201.23 209.165.201.30 netmask 255.255.255.224 Router(config)#ip nat inside source list 9 pool TAME. 7. 8. 9. 10. 24. 32.