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Q:

Suppose you have a customer who has a central HQ and six branch offices. The customer anticipates adding six more branches in the near future. It  whishes to implement  a WAN technology that will allow the branches to economically connect to HQ and you have no free ports on the HQ router. which of the following would you recommend?

A) PPP B) HDLC
C) Frame Relay D) ISDN
 
Answer & Explanation Answer: C) Frame Relay

Explanation:

The key is "there are no free ports" on your router. Only Frame Relay can provide a connection to multiple locations with one interface, and in an economical manner no less.

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Filed Under: CCNA

Q:

What does a link-local address always start with?

Answer

FE80::/10

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Subject: CCNA

Q:

Which type of address is used just like a regular public routable address in IPv4?

Answer

Global unicast

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Subject: CCNA

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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Q:

You want to ping the loopback address of your IPv6 local host. What will you type?

A) Ping 127.0.0.1 B) Ping 0.0.0.0
C) Ping ::1 D) trace 0.0. :: 1
 
Answer & Explanation Answer: C) Ping ::1

Explanation:

The loop back address with IPv4 is 127.0.0.1 . With IPv6, that address is ::1

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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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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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Filed Under: CCNA

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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Filed Under: CCNA