Certification Questions

Q:

You are connecting an access point and it is set to root. What does extended service set ID mean?

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
 
Answer & Explanation Answer: A) 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.

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0 3634
Q:

How many bits are in an IPv6 address field?

A) 24 B) 16
C) 32 D) 128
 
Answer & Explanation Answer: B) 16

Explanation:

There are 16 bits (four hex characters) in an IPv6 field.

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0 6578
Q:

To enable OSPFv3, which of the following would you use?

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
 
Answer & Explanation Answer: A) 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.

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0 6532
Q:

To enable RIPng , which of the following would you use?

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
 
Answer & Explanation Answer: B) 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.

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0 4215
Q:

What multicast addresses does EIGRPv6 use?

A) FF02::A B) FF02::9
C) FF02::5 D) FF02::6
 
Answer & Explanation Answer: A) 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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0 5164
Q:

What multicast addresses does RIPng use?

A) FF02::A B) FF02::9
C) FF02::5 D) FF02::6
 
Answer & Explanation Answer: B) FF02::9

Explanation:

RIPng uses the multicast IPv6 address of FF02::9. If you remember the multicast addresses for IPv4, the numbers at the end of each IPv6 address are the same.

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0 5844
Q:

Which of the following is true when describing a multicast address?

A) Packets addressed to a multicast address are delivered to a single interface B) packets are delivered to all interfaces identified with the address. This is also called a one-to-many address
C) A multicast address identifies multiple interfaces and is delivered to only one address. This address can also be called one-to-one-of-many D) These addresses are meant for nonrouting purposes,but they are almost globally unique, so it is unlikely they will have an address overlap
 
Answer & Explanation Answer: B) packets are delivered to all interfaces identified with the address. This is also called a one-to-many address

Explanation:

Packets addressed to a multicast address are delivered to all interfaces identified with the multicast address, the same as in IPv4. It is also called a one-to-many address. You can always tell a multicast address in IPv6 because multicast addresses always start with FF.

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0 3905
Q:

What does a link-local address always start with?

Answer

FE80::/10

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