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- Question
Which of the following are disadvantages 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 5
- B. 3 and 4
- C. 2, 4 and 5
- D. 1 and 3
- Correct Answer
- 1, 3 and 5
ExplanationNAT is not perfect and can cause some issues in some networks, but most networks work just fine. NAT can cause delays and troubleshooting problems, and some applications just won't work. - 1. Which of the following is true when describing a unique local address?
Options- A. Packets addressed to a unicast address are delivered to a single interface.
- B. These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.
- C. These are like private addresses in IPv4 in that they are not meant to be routed.
- D. These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap. Discuss
- 2. Which of the following is true when describing a global unicast address?
Options- A. Packets addressed to a unicast address are delivered to a single interface.
- B. These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.
- C. These are like private addresses in IPv4 in that they are not meant to be routed.
- D. These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap. Discuss
- 3. To enable OSPFv3, which of the following would you use?
Options- A. Router1(config-if)# ipv6 ospf 10 area 0.0.0.0
- B. Router1(config-if)# ipv6 router rip 1
- C. Router1(config)# ipv6 router eigrp 10
- D. Router1(config-rtr)# no shutdown
- E. Router1(config-if)# ipv6 eigrp 10 Discuss
- 4. To enable RIPng, which of the following would you use?
Options- A. Router1(config-if)# ipv6 ospf 10 area 0.0.0.0
- B. Router1(config-if)# ipv6 router rip 1
- C. Router1(config)# ipv6 router eigrp 10
- D. Router1(config-rtr)# no shutdown
- E. Router1(config-if)# ipv6 eigrp 10 Discuss
- 5. If you wanted to deny FTP access from network 200.200.10.0 to network 200.199.11.0 but allow everything else, which of the following command strings is valid?
Options- A. access-list 110 deny 200.200.10.0 to network 200.199.11.0 eq ftp
access-list 111 permit ip any 0.0.0.0 255.255.255.255 - B. access-list 1 deny ftp 200.200.10.0 200.199.11.0 any any
- C. access-list 100 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftp
- D. access-list 198 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftp
access-list 198 permit ip any 0.0.0.0 255.255.255.255
Discuss
- 6. If you wanted to deny all Telnet connections to only network 192.168.10.0, which command could you use?
Options- A. access-list 100 deny tcp 192.168.10.0 255.255.255.0 eq telnet
- B. access-list 100 deny tcp 192.168.10.0 0.255.255.255 eq telnet
- C. access-list 100 deny tcp any 192.168.10.0 0.0.0.255 eq 23
- D. access-list 100 deny 192.168.10.0 0.0.0.255 any eq 23 Discuss
- 7. To configure the VLAN trunking protocol to communicate VLAN information between two switches, what two requirements must be met?
- Each end of the trunk link must be set to the IEEE 802.1e encapsulation.
- The VTP management domain name of both switches must be set the same.
- All ports on both the switches must be set as access ports.
- One of the two switches must be configured as a VTP server.
- A rollover cable is required to connect the two switches together.
- A router must be used to forward VTP traffic between VLANs.
Options- A. 1, 2 and 4
- B. 3, 5 and 6
- C. 2 and 4
- D. 1 and 6 Discuss
- 8. Which WLAN IEEE specification allows up to 54Mbps at 2.4GHz?
Options- A. A
- B. B
- C. G
- D. N Discuss
- 9. What is the maximum data rate for the 802.11a standard?
Options- A. 6Mbps
- B. 11Mbps
- C. 22Mbps
- D. 54Mbps Discuss
- 10. You type show running-config and get this output:
What do the two numbers following the exec-timeout command mean?[output cut] Line console 0 Exec-timeout 1 35 Password CURIOUSTABPASSWD Login [output cut]
Options- A. If no command has been typed in 35 seconds, the console connection will be closed.
- B. If no router activity has been detected in 1 hour and 35 minutes, the console will be locked out.
- C. If no commands have been typed in 1 minute and 35 seconds, the console connection will be closed.
- D. If you're connected to the router by a Telnet connection, input must be detected within 1 minute and 35 seconds or the connection will be closed. Discuss
More questions
Correct Answer: These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap.
Explanation:
These addresses are meant for nonrouting purposes like link-local, but they are almost globally unique so it is unlikely they will have an address overlap. Unique local addresses were designed as a replacement for site-local addresses.
Correct Answer: These are your typical publicly routable addresses, just like a regular publicly routable address in IPv4.
Explanation:
Unlike unicast addresses, global unicast addresses are meant to be routed.
Correct Answer: Router1(config-if)# ipv6 ospf 10 area 0.0.0.0
Explanation:
To enable OSPFv3, you enable the protocol as with RIPng. The command string is ipv6
ospf <process-id> area <area-id>.
Correct Answer: Router1(config-if)# ipv6 router rip 1
Explanation:
It's pretty simple to enable RIPng for IPv6. You configure it right on the interface where you want RIP to run with the ipv6 router rip number command.
Correct Answer: access-list 198 deny tcp 200.200.10.0 0.0.0.255 200.199.11.0 0.0.0.255 eq ftp
access-list 198 permit ip any 0.0.0.0 255.255.255.255
Explanation:
Extended IP access lists use numbers 100-199 and 2000-2699 and filter based on source and destination IP address, protocol number, and port number. The last option is correct because of the second line that specifies permit ip any any. (I used 0.0.0.0 255.255.255.255, which is the same as the any option.) The third option does not have this, so it would deny access but not allow everything else.
Correct Answer: access-list 100 deny tcp any 192.168.10.0 0.0.0.255 eq 23
Explanation:
The extended access list ranges are 100-199 and 2000-2699, so the access-list number of 100 is valid. Telnet uses TCP, so the protocol TCP is valid. Now you just need to look for the source and destination address. Only the third option has the correct sequence of parameters. Answer B may work, but the question specifically states "only" to network 192.168.10.0, and the wildcard in answer B is too broad.
Correct Answer: 2 and 4
Explanation:
You must have the same VTP domain name on all switches in order to share VLAN information between the switches. At least one of the switches must be a VTP server; the other switches should be set to VTP client.
Correct Answer: G
Explanation:
IEEE 802.11B is 2.4GHz, but with a maximum of only 11Mbps. IEEE 802.11G is in the 2.4GHz range, with a top speed of 54Mbps.
Correct Answer: 54Mbps
Explanation:
The IEEE 802.11a standard provides a maximum data rate of up to 54Mbps.
Correct Answer: If no commands have been typed in 1 minute and 35 seconds, the console connection will be closed.
Explanation:
The
exec-timeout command is set in minutes and seconds.
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