CCNA 1 Chapter 7 V6.0 Answers

1. Which three IP addresses are private ? (Choose three.)

192.167.10.10

224.6.6.6

192.168.5.5

172.16.4.4

172.32.5.2

10.1.1.1

 

2. Match each description with an appropriate IP address. (Not all options are used.)

169.254.1.5 -> a link-local address

192.0.2.123 -> a TEST-NET address

240.2.6.255 -> an experimental address

172.19.20.5 -> a private address

127.0.0.1 -> a loopback address

 

3. How many bits are in an IPv4 address?

64

256

32

128

 

4. What field content is used by ICMPv6 to determine that a packet has expired?

CRC field

Hop Limit field

TTL field

Time Exceeded field

 

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

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

the average time it takes a packet to reach the destination and for the response to return to the source

the number of routers between the source and destination device

the destination device is reachable through the network

the IP address of the router nearest the destination device

 

6. Fill in the blank.

What is the decimal equivalent of the hex number 0x3F? 63

 

7. Which of these addresses is the shortest abbreviation for the IP address: 3FFE:1044:0000:0000:00AB:0000:0000:0057?

3FFE:1044:0000:0000:00AB::0057

3FFE:1044:0000:0000:00AB::57

3FFE:1044::00AB::0057

3FFE:1044:0:0:AB::57

3FFE:1044::AB::57

3FFE:1044:0:0:00AB::0057

 

8. What are three characteristics of multicast transmission? (Choose three.)

The range of 224.0.0.0 to 224.0.0.255 is reserved to reach multicast groups on a local network.

The source address of a multicast transmission is in the range of 224.0.0.0 to 224.0.0.255.

A single packet can be sent to a group of hosts.

Multicast messages map lower layer addresses to upper layer addresses.

Computers use multicast transmission to request IPv4 addresses.

Multicast transmission can be used by routers to exchange routing information.

 

9. What type of address is automatically assigned to an interface when IPv6 is enabled on that interface?

global unicast

link-local

loopback

unique local

 

10. What is the purpose of ICMP messages?

to provide feedback of IP packet transmissions

to monitor the process of a domain name to IP address resolution

to inform routers about network topology changes

to ensure the delivery of an IP packet

 

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

a global routing prefix that is used to identify the portion of the network address provided by a local administrator

an interface ID that is used to identify the local host on the network

a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP

an interface ID that is used to identify the local network for a particular host

a subnet ID that is used to identify networks inside of the local enterprise site

 

12. Which two IPv4 to IPv6 transition techniques manage the interconnection of IPv6 domains? (Choose two.)

encapsulation

dual stack

multiplexing

tunneling

trunking

 

13. What does the IP address 172.17.4.250/24 represent?

broadcast address

multicast address

host address

network address

 

14. What subnet mask is represented by the slash notation /20?

255.255.255.248

255.255.240.0

255.255.255.0

255.255.224.0

255.255.255.192

 

15. Fill in the blank.

The decimal equivalent of the binary number 10010101 is 149

 

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

directed broadcast

multicast

unicast

limited broadcast

 

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

broadcast

multicast

loopback

anycast

link-local

 

18. A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet?

when the RTT value reaches zero

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

when the value in the TTL field reaches zero

when the router receives an ICMP Time Exceeded message

when the host responds with an ICMP Echo Reply message

 

19. An administrator wants to configure hosts to automatically assign IPv6 addresses to themselves by the use of Router Advertisement messages, but also to obtain the DNS server address from a DHCPv6 server. Which address assignment method should be configured?

SLAAC

stateless DHCPv6

stateful DHCPv6

RA and EUI-64

 

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

subnet portion

network portion

logical portion

broadcast portion

host portion

physical portion

 

21. Which protocol supports Stateless Address Autoconfiguration (SLAAC) for dynamic assignment of IPv6 addresses to a host?

DHCPv6

UDP

ICMPv6

ARPv6

 

22. What is the purpose of the subnet mask in conjunction with an IP address?

to mask the IP address to outsiders

to identify whether the address is public or private

to determine the subnet to which the host belongs

to uniquely identify a host on a network

 

23. Fill in the blank.

The binary equivalent of the decimal number 232 is 11101000

 

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

The host is cabled properly.

IP is properly installed on the host.

The default gateway address is correctly configured.

The link-local address is correctly configured.

All hosts on the local link are available.