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- Question
Which of the following are advantages of using NAT?
- Translation introduces switching path delays.
- Conserves legally registered addresses.
- Causes loss of end-to-end IP traceability.
- Increases flexibility when connecting to the Internet.
- Certain applications will not function with NAT enabled.
- Reduces address overlap occurrence.
Options- A. 1, 3 and 4
- B. 3, 5 and 6
- C. 5 and 6
- D. 2, 4 and 6
- Correct Answer
- 2, 4 and 6
ExplanationNAT is not perfect, but there are some advantages. It conserves global addresses, which allow us to add millions of hosts to the Internet without "real" IP addresses. This provides flexibility in our corporate networks. NAT can also allow you to use the same subnet more than once in the same network without overlapping networks. - 1. You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use?
Options- A. 255.255.255.192
- B. 255.255.255.224
- C. 255.255.255.240
- D. 255.255.255.248 Discuss
- 2. Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational?
Options- A. frame-relay arp
- B. frame-relay map
- C. frame-relay interface-dci
- D. frame-relay lmi-type Discuss
- 3. What VTP mode allows you to change VLAN information on the switch?
Options- A. Client
- B. STP
- C. Server
- D. Transparent Discuss
- 4. The network address of 172.16.0.0/19 provides how many subnets and hosts?
Options- A. 7 subnets, 30 hosts each
- B. 8 subnets, 8,190 hosts each
- C. 8 subnets, 2,046 hosts each
- D. 7 subnets, 2,046 hosts each Discuss
- 5. Which command will allow you to see real-time translations on your router?
Options- A. show ip nat translations
- B. show ip nat statistics
- C. debug ip nat
- D. clear ip nat translations * Discuss
- 6. Which of the following is an IEEE standard for frame tagging?
Options- A. ISL
- B. 802.3Z
- C. 802.1Q
- D. 802.3U Discuss
- 7. Which command will display all the EIGRP feasible successor routes known to a router?
Options- A. show ip routes *
- B. show ip eigrp summary
- C. show ip eigrp topology
- D. show ip eigrp adjacencies Discuss
- 8. Which of the following encapsulates PPP frames in Ethernet frames and uses common PPP features like authentication, encryption, and compression?
Options- A. PPP
- B. PPPoA
- C. PPPoE
- D. Token Ring Discuss
- 9. What flavor of Network Address Translation can be used to have one IP address allow many users to connect to the global Internet?
Options- A. NAT
- B. Static
- C. Dynamic
- D. PAT Discuss
- 10. What is the frequency range of the IEEE 802.11g standard?
Options- A. 2.4Gbps
- B. 5Gbps
- C. 2.4GHz
- D. 5GHz Discuss
More questions
Correct Answer: 255.255.255.224
Explanation:
You need 5 subnets, each with at least 16 hosts. The mask 255.255.255.240 provides 16 subnets with 14 hosts-this will not work. The mask 255.255.255.224 provides 8 subnets, each with 30 hosts. This is the best answer.
Correct Answer: frame-relay map
Explanation:
If you have a router in your Frame Relay network that does not support IARP, you must create Frame Relay maps on your router, which provide known DLCI-to-IP address mappings.
Correct Answer: Server
Explanation:
Only in server mode can you change VTP information on a switch.
Correct Answer: 8 subnets, 8,190 hosts each
Explanation:
A CIDR address of /19 is 255.255.224.0. This is a Class B address, so that is only 3 subnet bits, but it provides 13 host bits, or 8 subnets, each with 8,190 hosts.
Correct Answer: debug ip nat
Explanation:
The command
debug ip nat will show you in real time the translations occurring on your router.
Correct Answer: 802.1Q
Explanation:
802.1Q was created to allow trunked links between disparate switches.
Correct Answer: show ip eigrp topology
Explanation:
Any secondary route to a remote network is considered a feasible successor, and those routes are only found in the topology table and used as backup routes in case of primary route failure. You can see the topology table with the
show ip eigrp topology command.
Correct Answer: PPPoE
Explanation:
PPPoE encapsulates PPP frames in Ethernet frames and uses common PPP features like authentication, encryption, and compression. PPPoA is used for ATM.
Correct Answer: PAT
Explanation:
Port Address Translation (PAT) allows a one-to-many approach to network address translation.
Correct Answer: 2.4GHz
Explanation:
The IEEE 802.11b and IEEE 802.11g standards both run in the 2.4GHz RF range.
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