CISCO Certification problems
- 1. Which encryption type does WPA2 use?
Options- A. AES - CCMP
- B. PPK via IV
- C. PSK
- D. TKIP/MIC Discuss
Correct Answer: AES - CCMP
Explanation:
WPA2 uses AES-CCMP for encryption. WPA uses TKIP
- 2. What is the maximum data rate for the 802.11g standard?
Options- A. 6Mbps
- B. 11Mbps
- C. 22Mbps
- D. 54Mbps Discuss
Correct Answer: 54Mbps
Explanation:
The IEEE 802.11g standard provides a maximum data rate of up to 54Mbps.
- 3. A wireless client cannot connect to an 802.11b/g BSS with a b/g wireless card. The client section of the access point does not list any active WLAN clients. What is a possible reason for this?
Options- A. The incorrect channel is configured on the client
- B. The Client's IP address is on the wrong subnet
- C. The client has an incorrect pre-shared key
- D. The SSID is configured incorrectly on the client Discuss
Correct Answer: The SSID is configured incorrectly on the client
Explanation:
Although this question is cryptic at best, the only possible answer is option D. If the SSID is not being broadcast (which we must assume in this question), the client must be configured with the correct SSID in order to associate to the AP.
- 4. Two workers have established wireless communication directly between their wireless laptops. What type of wireless topology has been created by these employees?
Options- A. BSS
- B. SSID
- C. IBSS
- D. ESS Discuss
Correct Answer: IBSS
Explanation:
Two wireless hosts directly connected wirelessly is no different then two hosts connecting with a crossover cable. They are both ad-hoc networks, but in wireless, we call this an independent Basic Service Set(IBSS).
- 5. You are connecting an access point and it is set to root. What does extended service set ID mean?
Options- A. That you have more than one access point and they are in the same SSID connected by a distribution system
- B. That you have more than one access point and they are in seperate SSIDs connected by a distribution system
- C. That you have multiple access points, but they are placed physically in different buildings
- D. That you have multiple access points, but one is a repeater access point Discuss
Correct Answer: That you have more than one access point and they are in the same SSID connected by a distribution system
Explanation:
Extended service set ID means that you have more than one access point and they all are set to the same SSID and all are connected together in the same VLAN or distribution system so users can roam.
- 6. How many bits are in an IPv6 address field?
Options- A. 24
- B. 16
- C. 32
- D. 128 Discuss
Correct Answer: 16
Explanation:
There are 16 bits (four hex characters) in an IPv6 field.
- 7. Which of the following descriptions about IPv6 is correct?
Options- A. Addresses are not hierarchical and are assigned at random
- B. Broadcasts have been eliminated and replaced with multicasts
- C. There are 2.7 billion addresses
- D. An interface can only be configured with one IPv6 address Discuss
Correct Answer: Broadcasts have been eliminated and replaced with multicasts
Explanation:
There are no broadcasts with IPv6. Unicast , multicast, anycast, global, and link - local unicast are used.
- 8. 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 - if) # ipv6 router eigrp 10
- D. Router1 (config - if) # ospf ipv6 10 area 0 Discuss
Correct Answer: Router1 (config - if) # ipv6 ospf 10 area 0.0.0.0
Explanation:
To enable OSPFv3, you enable the protocol at the interface level as with RIPng. The command string is ipv6 ospf proces-id area area-id.
- 9. 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 - if) # ipv6 router eigrp 10
- D. Router1 (config - if) # ospf ipv6 10 area 0 Discuss
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.
- 10. What multicast addresses does EIGRPv6 use?
Options- A. FF02::A
- B. FF02::9
- C. FF02::5
- D. FF02::6 Discuss
Correct Answer: FF02::A
Explanation:
EIGRPv6's multicast address stayed very near the same. In IPv4 it was 224.0.0.10; now it is FF02::A (A = 10 in decimal notation)
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