Chapter 8 Answers CCNA 1

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1.What is indicated by a successful ping to the ::1 IPv6 address?

1. IP is properly installed on the host.

2. The link-local address is correctly configured.

3. The default gateway address is correctly configured.

4. The host is cabled properly.

5. All hosts on the local link are available.



2. Which two ICMP messages are used by both IPv4 and IPv6 protocols? (Choose two.)​

1. route redirection
 
2. protocol unreachable

3. router solicitation

4. neighbor solicitation

5. router advertisement



3.What are three parts of an IPv6 global unicast address? (Choose three.)

1. a subnet ID that is used to identify networks inside of the local enterprise site
 
2. an interface ID that is used to identify the local host on the network
 
3. a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP

4. an interface ID that is used to identify the local network for a particular host
a global routing prefix that is used to identify the portion of the network address provided by a local administrator



4. When an IPv6 enabled host needs to discover the MAC address of an intended IPv6 destination, which destination address is used by the source host in the NS message?

1. solicited-node multicast address

2. global unicast address of the receiver

3. all-node multicast address

4. link-local address of the receiver



5.5.Which two statements are correct about IPv4 and IPv6 addresses? (Choose two.) Which two statements are correct about IPv4 and IPv6 addresses? (Choose two.)

1. IPv4 addresses are 32 bits in length.
 
2. IPv6 addresses are represented by hexadecimal numbers.

3. IPv6 addresses are 32 bits in length.

4. IPv4 addresses are 128 bits in length.

5. IPv4 addresses are represented by hexadecimal numbers.

6. IPv6 addresses are 64 bits in length.



6. A DHCP server is used to assign IP addresses dynamically to the hosts on a network. The address pool is configured with 192.168.10.0/24. There are 3 printers on this network that need to use reserved static IP addresses from the pool. How many IP addresses in the pool are left to be assigned to other hosts?

1.  251

2.   253

3.   252

4.   254



7. Which two things can be determined by using the ping command? (Choose two.)

1. whether or not the destination device is reachable through the network
 
2. the average time it takes a packet to reach the destination and for the response to return to the source

3. the average time it takes each router in the path between source and destination to respond

4. the IP address of the router nearest the destination device
the number of routers between the source and destination device



8. The decimal equivalent of the binary number 10010101 is
149



9. How many bits are in an IPv4 address?

1.  32

2.  256

3.  128

4.   64



10. An IPv6 enabled device sends a data packet with the destination address of FF02::1. What is the target of this packet?

1. all IPv6 enabled nodes on the local link

2. all IPv6 configured routers across the network

3. all IPv6 configured routers on the local link

4. all IPv6 DHCP servers



11. Fill in the blank.
What is the decimal equivalent of the hex number 0x3F?
63



12. Which network migration technique encapsulates IPv6 packets inside IPv4 packets to carry them over IPv4 network infrastructures?

1. tunneling

2. encapsulation

3. translation

4. dual-stack



13. What are two types of IPv6 unicast addresses? (Choose two.)

1. loopback
 
2. link-local

3. anycast

4. multicast
broadcast



14. What two statements describe characteristics of Layer 3 broadcasts? (Choose two.)

1. Routers create broadcast domains
 
2. A limited broadcast packet has a destination IP address of 255.255.255.255

3. There is a broadcast domain on each switch interface.

4. A router will not forward any type of Layer 3 broadcast packet.

5. Broadcasts are a threat and users must avoid using protocols that implement them.

6. Some IPv6 protocols use broadcasts.



15.When will a router drop a traceroute packet?

1. when the value in the TTL field reaches zero

2. when the router receives an ICMP Time Exceeded message

3. when the host responds with an ICMP Echo Reply message

4. when the values of both the Echo Request and Echo Reply messages reach zero

5. when the RTT value reaches zero


16.

17. When a Cisco router is being moved from an IPv4 network to a complete IPv6 environment, which series of commands would correctly enable IPv6 forwarding and interface addressing?

1. Router# configure terminal
Router(config)# interface fastethernet 0/0
Router(config-if)# ip address 192.168.1.254 255.255.255.0
Router(config-if)# no shutdown
Router(config-if)# exit
Router(config)# ipv6 unicast-routing

2. Router# configure terminal
Router(config)# interface fastethernet 0/0
Router(config-if)# ipv6 address 2001:db8:bced:1::9/64
Router(config-if)# no shutdown
Router(config-if)# exit
Router(config)# ipv6 unicast-routing

3. Router# configure terminal
Router(config)# interface fastethernet 0/0
Router(config-if)# ipv6 address 2001:db8:bced:1::9/64
Router(config-if)# no shutdown

4. Router# configure terminal
Router(config)# interface fastethernet 0/0
Router(config-if)# ip address 2001:db8:bced:1::9/64
Router(config-if)# ip address 192.168.1.254 255.255.255.0
Router(config-if)# no shutdown



18. Which two parts are components of an IPv4 address? (Choose two.)

1. network portion
 
2. host portion

3. logical portion

4. physical portion

5. broadcast portion

6. subnet portion



19. Which IPv6 address is most compressed for the full 
FE80:0:0:0:2AA:FF:FE9A:4CA3 address?​

FE80::2AA:FF:FE9A:4CA3
FE80::0:2AA:FF:FE9A:4CA3​
FE80:::0:2AA:FF:FE9A:4CA3​
FE8::2AA:FF:FE9A:4CA3​



20.

Which message is displayed on the web server?

 1. Correct configuration!

2. IPv6 address configured!

3. You did it right!

4. Successful configuration!



21.

22. A message is sent to all hosts on a remote network. Which type of message is it?

1. directed broadcast

2. limited broadcast

3. unicast

4. multicast



23. What is the prefix length notation for the subnet mask 255.255.255.224?

1.   /27

2.    /26

3.    /25

4.    /28