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Q:

How long is an IPv6 address?

A) 128 bytes B) 32 bits
C) 128 bits D) 32 bytes
 
Answer & Explanation Answer: C) 128 bits

Explanation:

IPv6 - Internet Protocol Version 6.

IPv6 addresses have a size of 128 bits.

Internet Protocol Version 6 [IPv6] is the successor to the Internet's first addressing infrastructure, Internet Protocol version 4 (IPv4).

In contrast to IPv4, which defined an IP address as a 32-bit value, IPv6 address have a size of 128 bits. 

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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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Filed Under: CCNA

Q:

Which of the following descriptions about IPv6 is correct?

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
 
Answer & Explanation Answer: B) 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.

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Filed Under: CCNA

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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Filed Under: CCNA

Q:

Which two descriptions are correct about characteristics of IPv6 unicast addressing? (Choose two)

A. Global addresses start with 2000::/3.
B. Link-local addresses start with FF00::/10.
C. Link-local addresses start with FE00:/12.
D. There is only one loopback address and it is ::1.

Answer

Answer : A , D


Explanation:


An IPv6 Unicast address identifies a single network interface. The Internet Protocol delivers packets sent to a unicast address to that specific interface.

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Subject: CCNA

Q:

In practical IPv6 application, The encapsulation of IPv6 packets inside IPv4 packets is called what?

A. tunneling
B. hashing
C. routing
D. NAT

Answer

Answer : A


Explanation:


Remember,  most network is still build on IPv4 structure and IPv4 is not going away in a hurry… one of the many techniques used to migrate to IPv6 is Tunneling.


Tunneling is a method that a network built on IPv4 structure can be configured to traffic IPv6 packet simultaneously.

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Subject: CCNA

Q:

What is the full IPv6 address represented by FF02::130F:5?

Answer

FF02:0000:0000:0000:0000:0000:130F:0005

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Subject: CCNP