CCNA 1 – Chapter 8 – Exam Answers 2016 100%

CCNA 1 – Chapter 8 – IP Addressing Exam Answer 2016 100%

1. 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?
• FE8::2AA:FF:FE9A:4CA3?
• FE80::0:2AA:FF:FE9A:4CA3?

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

• /26
• /28
• /25
• /27

3. How many bits are in an IPv4 address?

• 64
• 256
• 32
• 128

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

• network portion
• host portion
• physical portion
• broadcast portion
• subnet portion
• logical portion

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

• multicast
• unicast
• limited broadcast
• directed broadcast

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

• Routers create broadcast domains.
• There is a broadcast domain on each switch interface.
• A limited broadcast packet has a destination IP address of 255.255.255.255.
• A router will not forward any type of Layer 3 broadcast packet.
• Broadcasts are a threat and users must avoid using protocols that implement them.
• Some IPv6 protocols use broadcasts.

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

• all IPv6 enabled nodes on the local link
• all IPv6 configured routers across the network
• all IPv6 DHCP servers
• all IPv6 configured routers on the local link

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

• translation
• tunneling
• encapsulation
• dual-stack

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

• IPv4 addresses are represented by hexadecimal numbers.
• IPv4 addresses are 32 bits in length.
• IPv4 addresses are 128 bits in length.
• IPv6 addresses are 64 bits in length.
• IPv6 addresses are represented by hexadecimal numbers.
• IPv6 addresses are 32 bits in length.

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

• loopback
• anycast
• broadcast
• multicast
• link-local

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

• a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP
• 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
• 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 things can be determined by using the ping command? (Choose two.)

• the IP address of the router nearest the destination device
• whether or not the destination device is reachable through the network
• the average time it takes each router in the path between source and destination to respond
• the number of routers between the source and destination device
• the average time it takes a packet to reach the destination and for the response to return to the source

13. 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?

• 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
• 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
• 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# 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

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

• route redirection
• protocol unreachable
• router advertisement
• router solicitation
• neighbor solicitation

15. Match each description with an appropriate IP Address. (Not all options are used.)

CCNA 1 – Chapter 8 – IP Addressing Exam Answer 2016 100%

16. 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?

• solicited-node multicast address
• global unicast address of the receiver
• all-node multicast address
• link-local address of the receiver

17. When will a router drop a traceroute packet?

• when the RTT value reaches zero
• when the value in the TTL field reaches zero
• when the values of both the Echo Request and Echo Reply messages reach zero
• when the router receives an ICMP Time Exceeded message
• when the host responds with an ICMP Echo Reply message

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

• The default gateway address is correctly configured.
• The link-local address is correctly configured.
• IP is properly installed on the host.
• The host is cabled properly.
• All hosts on the local link are available.

19. Fill in the blank.
The decimal equivalent of the binary number 10010101 is    149    .

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

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

CCNA 1 – Chapter 8 – IP Addressing Exam Answer 2016 100%

22. Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
Which message is displayed on the web server?

• Correct configuration!
• Successful configuration!
• You did it right!
• IPv6 address configured!

23. 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?

• 251
• 253
• 254
• 252

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CCNA 1 – Chapter 7 – Exam Answers 2016 100%

CCNA 1 – Chapter 7 – Transport Layer Exam Answer 2016 100%

1. A host device needs to send a large video file across the network while providing data communication to other users. Which feature will allow different communication streams to occur at the same time, without having a single data stream using all available bandwidth?

• multiplexing
• acknowledgments
• window size
• port numbers

2. During a TCP session, a destination device sends an acknowledgment number to the source device. What does the acknowledgment number represent?

• one number more than the sequence number
• the last sequence number that was sent by the source
• the total number of bytes that have been received
• the next byte that the destination expects to receive

3. What is a beneficial feature of the UDP transport protocol?

• fewer delays in transmission
• the ability to retransmit lost data
• acknowledgment of received data
• tracking of data segments using sequence numbers

4. What is a socket?

• the combination of a source IP address and port number or a destination IP address and port number
• the combination of the source and destination sequence numbers and port numbers
• the combination of the source and destination IP address and source and destination Ethernet address
• the combination of the source and destination sequence and acknowledgment numbers

5. A host device sends a data packet to a web server via the HTTP protocol. What is used by the transport layer to pass the data stream to the proper application on the server?

• acknowledgment
• destination port number
• sequence number
• source port number

6. What is the complete range of TCP and UDP well-known ports?

• 0 to 1023
• 1024 – 49151
• 0 to 255
• 256 – 1023

7. What does a client application select for a TCP or UDP source port number?

• a random value in the range of the registered ports
• a predefined value in the range of the registered ports
• a random value in the well-known port range
• a predefined value in the well-known port range

8. Which transport layer feature is used to guarantee session establishment?

• TCP 3-way handshake
• TCP port number
• UDP ACK flag
• UDP sequence number

9. Match each application to its connectionless or connection-oriented protocol.

CCNA 1 – Chapter 7 – Transport Layer Exam Answer 2016 100%

10.Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.)

• FIN
• RST
• SYN
• URG
• ACK
• PSH

11. Which factor determines TCP window size?

• the number of services included in the TCP segment
• the amount of data the source is capable of sending at one time
• the amount of data to be transmitted
• the amount of data the destination can process at one time

12. Compared to UDP, what factor causes additional network overhead for TCP communication?

• the identification of applications based on destination port numbers
• the checksum error detection
• network traffic that is caused by retransmissions
• the encapsulation into IP packets

13. A PC is downloading a large file from a server. The TCP window is 1000 bytes. The server is sending the file using 100-byte segments. How many segments will the server send before it requires an acknowledgment from the PC?

• 10 segments
• 1000 segments
• 1 segment
• 100 segments

14. Refer to the exhibit. Consider a datagram that originates on the PC and that is destined for the web server. Match the IP addresses and port numbers that are in that datagram to the description. (Not all options are used.)

CCNA 1 – Chapter 7 – Transport Layer Exam Answer 2016 100%

15. Which two TCP header fields are used to confirm receipt of data?

• SYN flag
• sequence number
• acknowledgment number
• FIN flag
• checksum

16. What happens if the first packet of a TFTP transfer is lost?

• The TFTP application will retry the request if a reply is not received.
• The transport layer will retry the query if a reply is not received.
• The client will wait indefinitely for the reply.
• The next-hop router or the default gateway will provide a reply with an error code.

17. Match the characteristic to the protocol category. (Not all options are used.)

CCNA 1 – Chapter 7 – Transport Layer Exam Answer 2016 100%

18. What does a client do when it has UDP datagrams to send?

• It queries the server to see if it is ready to receive data.
• It sends to the server a segment with the SYN flag set to synchronize the conversation.
• It just sends the datagrams.
• It sends a simplified three-way handshake to the server.

19. Fill in the blank.
During a TCP session, the     SYN    flag is used by the client to request communication with the server.

20. Fill in the blank using a number. A total of     4     messages are exchanged during the TCP session termination process between the client and the server.

21. Which scenario describes a function provided by the transport layer?

• A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.
• A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.
• A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network.
• A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

22. A technician wishes to use TFTP to transfer a large file from a file server to a remote router. Which statement is correct about this scenario?

• The file is segmented and then reassembled in the correct order at the destination, if necessary, by the upper-layer protocol.
• Large files must be sent by FTP not TFTP.
• The file is segmented and then reassembled in the correct order by TCP.
• The file is not segmented, because UDP is the transport layer protocol that is used by TFTP.

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