fatcat294
29-07-2005, 22:16
Mình có mấy câu CCNA TestKing cần hỏi vì mấy câu trả lời trong TestKing mình chưa chắc chắn lắm. Bạn nào giải giùm nếu được thì ghi cho mình lý do chọn câu trả lời luôn.
1. While troubleshooting a network connectivity issue, you suspect that a router may be missing a route, or may be receiving bad routing information to a destination. What command should you issue to view the route that the router will use to reach a given destination?
A. ping
B. trace
C. show ip route
D. show interface
E. show cdp neighbors
2. While troubleshooting connectivity issues, you log into a remote router. From there, you wish to see the layer 1 and layer 2 status of the interface. Which of the following IOS commands would you issue to check the current IP addressing, as well as the lay er 1 and layer 2 status of an interface? (Select three answer choices)
A. TK1# show version
B. TK1# show protocols
C. TK1# show interfaces
D. TK1# show controllers
E. TK1# show ip interface
F. TK1# show startup-config
3. After executing the “show host” command, which of the information below would you see? (Select two answer choices.)
A. The IP addresses of workstations allowed gain access to the router via an access list
B. Permanent name-to-address mappings created using the ip host command.
C. Temporary and permanent DNS entries.
D. The names of the routers created using the hostname command.
E. The length of time of users logged into the router, as well as the duration
4. Xếp thứ tự 5 necessary steps to configure DDR on an ISDN BRI. Chọn 5 trong số các lựa chọn sau và xếp theo thứ tự:
unicast
dial string
map
dialer-list
<next-hop-address>
dialer
group
<protocol>
5. Có 2 router, TK1 nối TK3. TK1 có LAN nối với E0, TK1 nối với TK3 bằng S0. TK3 có LAN nối với E0, TK3 nối với TK1 bằng S0. Yêu cầu tạo access-list deny telnet to TK1 và apply vào TK3. Access-list này deny telnet to 2 interfaces của TK1. Hỏi access-list này apply vào TK3 như thế nào?
Câu trả lời của TestKing là apply S0 inbound, E0 inbound, mình nghĩ là phải S0 outbound mới đúng, có phải ko ?
6. Câu hỏi tương tự câu 5 về topology, nhưng đòi hỏi deny ping from any other network to TK3 (theo mình hiểu là chỉ có LAN của TK3 là ping được TK3). Access-list deny ping from any other networks to 2 interfaces của TK3. Hỏi nó apply vào TK3 thế nào? Câu trả lời của TestKing là apply S0 in, E0 out, mình nghĩ là cái E0 out thừa, có phải ko ?
7. You are an administrator and you’ve just configured OSPF on a router with both physical and logical interfaces. Which of the following factors determine the router ID?
A. The lowest IP address of any interface.
B. The highest IP address of any interface.
C. The highest IP address of any logical interface.
D. The middle IP address of any logical interface.
E. The lowest IP address of any physical interface.
F. The highest IP address of any physical interface.
G. The lowest IP address of any logical interface.
8. You are a network administrator of a small company that’s experiencing explosive growth. Within the next quarter the company is going to open up seven more
regional offices with the potential of more in the future. These regional offices send and receive mission critical traffic, and will need to be connected to the head office
around the clock. However, your head office doesn’t have any additional free ports available on the router. Which of the following technologies would be the best choice for this new WAN?
A. Frame Relay
B. Broadband cable
C. ISDN-BRI
D. ADSL
E. Dedicated PPP/HDLC links
F. ISDN
9. In which of the following scenarios would the show cdp neighbors detail command be an appropriate troubleshooting tool?
A. Two switches are connected via a trunk. Both switches have been assigned an IP address, subnet mask, and default gateway. A ping is successful between the two switches. However, VLAN information is not passed
from one switch to the other switch.
B. A router and a switch have been assigned an IP address, a subnet mask, and a default gateway. They are directly connected, but a ping between the two devices fails.
C. A router connects to another router through a ****** interface. Both routers have been assigned an IP address, subnet mask, and default gateway. The routers are running RIP and the networks directly connected to the first router do not pass to the second router. However, a ping from one router to the ****** interface of the directly connected neighboring router is successful.
D. A router connects to another router via a switch. Both routers and the switch have been assigned an IP address, subnet mask, and default gateway. Neither the routers nor the switch are able to ping one of the hosts that is directly to the switch.
10. Which command displays EIGRP-related router activities as they occur?
A. TestKing# show ip route *
B. TestKing# debug eigrp route
C. TestKing# debug ip eigrp
D. TestKing# debug ip protocols eigrp
E. TestKing# show ip route eigrp
11. You work as a network engineer at TestKing.com. TestKing users have noticed extremely slow network performance, intermittent connectivity, and loss of
connection. After entering the show interfaces command, you notice that the Ethernet interface is configured as 100 Mbps full-duplex and that there is evidence of late collisions.
What could be the cause of this problem?
A. duplex mismatch
B. a routing loop
C. trunking mode mismatch
D. improperly configured root bridge
E. improperly configured static VLAN
12. Có 4 loại port trên 1 router: AUI, ******, BRI, Console. Which port can be used for a WAN T1 connection?
A. AUI
B. BRI
C. Console
D. ****** 0
13. When selecting a Network Interface Card (NIC), which of the following factors need to be considered? Select three
A. The type of application used on the network
B. The type of system bus used by the computers
C. The type of memory installed in each computer
D. The type of media used in the network topology
E. The type of protocols used in the network
F. The physical layout of the network hosts
14. Which of the following statements describe the characteristic of link state routing protocols? (Choose all that apply.)
A. The exchange of an advertisement is triggered by a change in the network.
B. All routers exchange routing tables with each other in a multipoint network.
C. Packets are routed based upon the shortest path to the destination.
D. Paths are chosen depending on the cost efficiency factor.
E. Every router in an OSPF area is capable of representing the entire network
topology.
F. Only the designated router in an OSPF area can represent the entire network
topology.
Cám ơn nhiều
1. While troubleshooting a network connectivity issue, you suspect that a router may be missing a route, or may be receiving bad routing information to a destination. What command should you issue to view the route that the router will use to reach a given destination?
A. ping
B. trace
C. show ip route
D. show interface
E. show cdp neighbors
2. While troubleshooting connectivity issues, you log into a remote router. From there, you wish to see the layer 1 and layer 2 status of the interface. Which of the following IOS commands would you issue to check the current IP addressing, as well as the lay er 1 and layer 2 status of an interface? (Select three answer choices)
A. TK1# show version
B. TK1# show protocols
C. TK1# show interfaces
D. TK1# show controllers
E. TK1# show ip interface
F. TK1# show startup-config
3. After executing the “show host” command, which of the information below would you see? (Select two answer choices.)
A. The IP addresses of workstations allowed gain access to the router via an access list
B. Permanent name-to-address mappings created using the ip host command.
C. Temporary and permanent DNS entries.
D. The names of the routers created using the hostname command.
E. The length of time of users logged into the router, as well as the duration
4. Xếp thứ tự 5 necessary steps to configure DDR on an ISDN BRI. Chọn 5 trong số các lựa chọn sau và xếp theo thứ tự:
unicast
dial string
map
dialer-list
<next-hop-address>
dialer
group
<protocol>
5. Có 2 router, TK1 nối TK3. TK1 có LAN nối với E0, TK1 nối với TK3 bằng S0. TK3 có LAN nối với E0, TK3 nối với TK1 bằng S0. Yêu cầu tạo access-list deny telnet to TK1 và apply vào TK3. Access-list này deny telnet to 2 interfaces của TK1. Hỏi access-list này apply vào TK3 như thế nào?
Câu trả lời của TestKing là apply S0 inbound, E0 inbound, mình nghĩ là phải S0 outbound mới đúng, có phải ko ?
6. Câu hỏi tương tự câu 5 về topology, nhưng đòi hỏi deny ping from any other network to TK3 (theo mình hiểu là chỉ có LAN của TK3 là ping được TK3). Access-list deny ping from any other networks to 2 interfaces của TK3. Hỏi nó apply vào TK3 thế nào? Câu trả lời của TestKing là apply S0 in, E0 out, mình nghĩ là cái E0 out thừa, có phải ko ?
7. You are an administrator and you’ve just configured OSPF on a router with both physical and logical interfaces. Which of the following factors determine the router ID?
A. The lowest IP address of any interface.
B. The highest IP address of any interface.
C. The highest IP address of any logical interface.
D. The middle IP address of any logical interface.
E. The lowest IP address of any physical interface.
F. The highest IP address of any physical interface.
G. The lowest IP address of any logical interface.
8. You are a network administrator of a small company that’s experiencing explosive growth. Within the next quarter the company is going to open up seven more
regional offices with the potential of more in the future. These regional offices send and receive mission critical traffic, and will need to be connected to the head office
around the clock. However, your head office doesn’t have any additional free ports available on the router. Which of the following technologies would be the best choice for this new WAN?
A. Frame Relay
B. Broadband cable
C. ISDN-BRI
D. ADSL
E. Dedicated PPP/HDLC links
F. ISDN
9. In which of the following scenarios would the show cdp neighbors detail command be an appropriate troubleshooting tool?
A. Two switches are connected via a trunk. Both switches have been assigned an IP address, subnet mask, and default gateway. A ping is successful between the two switches. However, VLAN information is not passed
from one switch to the other switch.
B. A router and a switch have been assigned an IP address, a subnet mask, and a default gateway. They are directly connected, but a ping between the two devices fails.
C. A router connects to another router through a ****** interface. Both routers have been assigned an IP address, subnet mask, and default gateway. The routers are running RIP and the networks directly connected to the first router do not pass to the second router. However, a ping from one router to the ****** interface of the directly connected neighboring router is successful.
D. A router connects to another router via a switch. Both routers and the switch have been assigned an IP address, subnet mask, and default gateway. Neither the routers nor the switch are able to ping one of the hosts that is directly to the switch.
10. Which command displays EIGRP-related router activities as they occur?
A. TestKing# show ip route *
B. TestKing# debug eigrp route
C. TestKing# debug ip eigrp
D. TestKing# debug ip protocols eigrp
E. TestKing# show ip route eigrp
11. You work as a network engineer at TestKing.com. TestKing users have noticed extremely slow network performance, intermittent connectivity, and loss of
connection. After entering the show interfaces command, you notice that the Ethernet interface is configured as 100 Mbps full-duplex and that there is evidence of late collisions.
What could be the cause of this problem?
A. duplex mismatch
B. a routing loop
C. trunking mode mismatch
D. improperly configured root bridge
E. improperly configured static VLAN
12. Có 4 loại port trên 1 router: AUI, ******, BRI, Console. Which port can be used for a WAN T1 connection?
A. AUI
B. BRI
C. Console
D. ****** 0
13. When selecting a Network Interface Card (NIC), which of the following factors need to be considered? Select three
A. The type of application used on the network
B. The type of system bus used by the computers
C. The type of memory installed in each computer
D. The type of media used in the network topology
E. The type of protocols used in the network
F. The physical layout of the network hosts
14. Which of the following statements describe the characteristic of link state routing protocols? (Choose all that apply.)
A. The exchange of an advertisement is triggered by a change in the network.
B. All routers exchange routing tables with each other in a multipoint network.
C. Packets are routed based upon the shortest path to the destination.
D. Paths are chosen depending on the cost efficiency factor.
E. Every router in an OSPF area is capable of representing the entire network
topology.
F. Only the designated router in an OSPF area can represent the entire network
topology.
Cám ơn nhiều