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Parte 5. Implementando IPv4
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Questions in this quiz (26)
1Which of the following installation steps are more likely required on a Cisco router, but not typically required on a Cisco switch? (Choose two answers.)
- AConnect Ethernet cables
- BConnect serial cables
- CConnect to the console port
- DConnect the power cable
- ETurn the on/off switch to “on”
2Which of the following commands might you see associated with the router CLI, but not with the switch CLI?
- AThe clock rate command
- BThe ip address address mask command
- CThe ip address dhcp command
- DThe interface vlan 1 command
3 You just bought two Cisco routers for use in a lab, connecting each router to a different LAN switch with their Fa0/0 interfaces. You also connected the two routers’ serial interfaces using a back-to-back cable. Which of the following steps are not required to be able to forward IPv4 packets on both routers’ interfaces? (Choose two answers.)
- AConfiguring an IP address on each router’s Fast Ethernet and serial interfaces
- BConfiguring the bandwidth command on one router’s serial interface
- CConfiguring the clock rate command on one router’s serial interface
- DSetting the interface description on both the Fast Ethernet and serial interface of each router
4 The output of the show ip interface brief command on R1 lists interface status codes of “down” and “down” for interface Serial 0/0. Which of the following could be true?
- AThe shutdown command is currently configured for that interface
- BR1’s serial interface has been configured to use Frame Relay, but the router on the other end of the serial link has been configured to use PPP.
- CR1’s serial interface does not have a serial cable installed
- DBoth routers have been cabled to a working serial link (CSU/DSUs included), but only one router has been configured with an IP address.
5Which of the following commands do not list the IP address and mask of at least one interface? (Choose two answers.)
- Ashow running-config
- Bshow protocols type number
- Cshow ip interface brief
- Dshow interfaces
- Eshow version
6Which of the following is different on the Cisco switch CLI for a Layer 2 switch as compared with the Cisco router CLI?
- AThe commands used to configure simple password checking for the console
- BThe number of IP addresses configured
- CThe configuration of the device’s hostname
- DThe configuration of an interface description
7 A PC user opens a command prompt and uses the ipconfig command to see that the PC’s IP address and mask are 192.168.4.77 and 255.255.255.224. The user then runs a test using the ping 192.168.4.117 command. Which of the following answers is the most likely to happen?
- AThe PC sends packets directly to the host with address 192.168.4.117.
- BThe PC sends packets to its default gateway.
- CThe PC sends a DNS query for 192.168.4.117.
- DThe PC sends an ARP looking for the MAC address of the DHCP server.
8 Router R1 lists a route in its routing table. Which of the following answers list a fact from a route that the router then compares to the packet’s destination address? (Choose two answers.)
- AMask
- BNext-hop router
- CSubnet ID
- DOutgoing interface
9Router 1 has a Fast Ethernet interface 0/0 with IP address 10.1.1.1. The interface is connected to a switch. This connection is then migrated to use 802.1Q trunking. Which of the following commands could be part of a valid configuration for Router 1’s Fa0/0 interface? (Choose two answers.)
- Ainterface fastethernet 0/0.4
- Bdot1q enable
- Cdot1q enable 4
- Dtrunking enable
- Etrunking enable 4
- Fencapsulation dot1q 4
10 A Layer 3 switch has been configured to route IP packets between VLANs 1, 2, and 3, which connect to subnets 172.20.1.0/25, 172.20.2.0/25, and 172.20.3.0/25, respectively. The engineer issues a show ip route command on the Layer 3 switch, listing the connected routes. Which of the following answers lists a piece of information that should be in at least one of the routes?
- AInterface Gigabit Ethernet 0/0.3
- BNext-hop router 172.20.4.1
- CInterface VLAN 2
- DMask 255.255.255.0
11An engineer configures a static IPv4 route on Router R1. Which of the following pieces of information should not be listed as a parameter in the configuration command that creates this static IPv4 route?
- AThe destination subnet’s subnet ID
- BThe next-hop router’s IP address
- CThe next-hop router’s neighboring interface
- DThe subnet mask
12 Which of the following commands correctly configures a static route?
- Aip route 10.1.3.0 255.255.255.0 10.1.130.253
- Bip route 10.1.3.0 serial 0
- Cip route 10.1.3.0 /24 10.1.130.253
- Dip route 10.1.3.0 /24 serial 0
13 A network engineer configures the ip route 10.1.1.0 255.255.255.0 s0/0/0 command on a router, and then issues a show ip route command from enable mode. No routes for subnet 10.1.1.0/24 appear in the output. Which of the following could be true?
- AThe ip route command has incorrect syntax and was rejected in config mode
- Binterface s0/0/0 is down.
- CThe router has no up/up interfaces in Class A network 10.0.0.0.
- DThe ip route command is missing a next-hop router IP address
14Which of the following are features of RIPv2? (Choose two answers.)
- AUses a hop-count metric
- BSends update messages to broadcast address 255.255.255.255
- CAfter convergence, only sends updates if a change occurs
- DUses split horizon as a loop prevention mechanism
15Which of the following best describes the concept of the RIP hop count metric?
- AThe number of satellite links in a route.
- BThe number of routers between a router and a subnet, not counting that router.
- CThe number of routers between a router and a subnet, counting that router.
- DThe number of links between a router and a subnet, not counting the link where the subnet resides.
- EThe number of links between a router and a subnet, counting the link where the subnet resides.
16Router R2 has interfaces with addresses/masks of 10.1.1.2/24 and 11.1.1.2/24. Which of the following commands would be part of a RIP Version 2 configuration on R2 that enables RIPv2 on both interfaces? (Choose three answers.)
- Arouter rip
- Brouter rip 3
- Cnetwork 10.0.0.0
- Dnetwork 10.1.1.1
- Enetwork 11.0.0.0
- Fnetwork 11.1.1.2
17Which of the following network commands, following a router rip command, would cause RIP to send updates out two interfaces whose IP addresses are 10.1.2.1 and 10.1.1.1, mask 255.255.255.0?
- Anetwork 10.0.0.0
- Bnetwork 10.1.1.0 10.1.2.0
- Cnetwork 10.1.1.1. 10.1.2.1
- Dnetwork 10.1.0.0 255.255.0.0
- Enetwork 10
18 Review the snippet from a show ip route command on a router:
R 10.1.2.0 [120/1] via 10.1.128.252, 00:00:13, Serial0/0/1
Which of the following statements must be true regarding this output? (Choose two answers.)- AThe administrative distance is 1.
- BThe administrative distance is 120.
- CThe metric is 1.
- DThe metric is not listed.
- EThe router added this route to the routing table 13 seconds ago.
- FThe router must wait 13 seconds before advertising this route again.
19 Review the snippet from a show ip protocols command on a router:
Automatic network summarization is not in effect
Maximum path: 5
Routing for Networks:
192.168.1.0
192.168.5.0
Passive Interface(s):
GigabitEthernet0/1
Which of the following commands would you expect the show running-config command to list in RIP configuration mode? (Choose two answers.)- Aauto-summary
- Bnetwork 192.168.5.1
- Cmaximum-paths 5
- Dpassive-interface gigabitethernet0/1
20Routers R1 and R2 use RIPv2, and should exchange routes with each other. R1 and R2 connect on an Ethernet link, with both routers using their G0/0 interfaces. R2 learns routes from R1, but R1 does not learn routes from R2. Which of the following mistakes could result in this symptom?
- AR2 has configured a passive-interface gigabitethernet0/0 command.
- BR1’s and R2’s IP address/mask values are 10.1.1.1/25 and 10.1.1.201/25, respectively.
- CR1’s has no RIP network command that matches R1’s G0/0 interface IP address.
- DR2 is missing a no auto-summary command.
21 A PC connects to a LAN and uses DHCP to lease an IP address for the first time. Of the usual four DHCP messages that flow between the PC and the DHCP server, which ones do the client send? (Choose two answers.)
- AAcknowledgment
- Bdiscover
- COffer
- DRequest
22 An enterprise puts the DHCP and DNS servers on VLAN 10/subnet 10 in Atlanta, using IP address 10.1.10.1 for the DHCP server and 10.1.10.2 for the DNS server. A remote router sits in Boston, with devices on the Boston LAN using the DHCP and DNS servers in Atlanta. Which of the following needs to be configured in the routers in this enterprise to support DHCP and DNS?
- AThe ip helper-address 10.1.10.1 command in the Atlanta router
- BThe ip helper-address 10.1.10.2 command in the Boston router
- CThe ip name-server 10.1.10.2 command in the Atlanta router
- DThe ip dhcp-server 10.1.10.1 command in the Boston router
- ENone of the other answers are correct.
23Fred decides to migrate from an old DHCP server platform to use a Cisco router at the headquarters building. This DHCP server, created with configuration in IOS on a Cisco router, supports 200 remote subnets. Which of the following settings are made outside of a per-subnet pool of addresses?
- AClient IP address
- BAddresses in that subnet excluded from being leased by the server
- CDefault router
- DDNS server
- ELength of address lease
24PC1, a new PC, just booted for the first time when connected to an enterprise network. PC1 used DHCP to lease IP address 10.1.1.1, learning mask 255.255.255.0, DNS server 10.9.9.9, and default gateway 10.1.1.2, with a lease time of 7 days. Assume that the PC has sent nothing else over the network because the DHCP process completed. The user then opens a web browser and types www.ciscopress.com. Which of the following actions happens next?
- APC1 sends an ARP request to find the web server’s MAC address.
- BPC1 sends an ARP request to find the default gateway’s (10.1.1.2) MAC address.
- CPC1 sends a DNS request about www.ciscopress.com to the DNS server (10.9.9.9)
- DPC1 sends an IP packet to the www.ciscopress.com web server IP address.
25 A packet is sent to a destination address. That single packet is routed through the network to the final router, which then sends the packet to all hosts connected to that one subnet. Which of the following IP address types was used as the destination IP address?
- AA unicast address
- BA network broadcast address
- CA subnet broadcast address
- DA multicast address
26 A packet is sent to a destination address. That single packet is replicated by a few routers based on the routers’ knowledge of hosts that had earlier registered to receive packets sent to that destination address. The routers do not forward copies of the packet onto subnets where no hosts have registered, and do forward copies of the packet onto subnets where at least one host has registered to receive those packets. Which of the following IP address types was used as the destination IP address?
- AA unicast address
- BA network broadcast address
- CA subnet broadcast address
- DA multicast address
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- Quiz on Parte 5. Implementando IPv4, created by Eve Ramírez on 21/05/2019.
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- Eve Ramírez
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