CCNA 1 v7

Modules 11 – 13: IP Addressing Exam Answers

Modules 11 – 13: IP Addressing Exam Answers Full
1. What is a function of the tracert command that differs from the ping command when they are used on a workstation?

  • The tracert command reaches the destination faster.
  • The tracert command shows the information of routers in the path.
  • The tracert command sends one ICMP message to each hop in the path.
  • The tracert command is used to test the connectivity between two devices.

2. Which ICMP message is used by the traceroute utility during the process of finding the path between two end hosts?

  • redirect
  • ping
  • time exceeded
  • destination unreachable

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

  • the number of routers between the source and destination device
  • the IP address of the router nearest the destination device
  • the average time it takes a packet to reach the destination and for the response to return to the source
  • the destination device is reachable through the network
  • the average time it takes each router in the path between source and destination to respond

4. Which statement describes a characteristic of the traceroute utility?

  • It sends four Echo Request messages.
  • It utilizes the ICMP Source Quench messages.
  • It is primarily used to test connectivity between two hosts.
  • It identifies the routers in the path from a source host to a destination host.

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

  • 255.255.255.248
  • 255.255.224.0
  • 255.255.240.0
  • 255.255.255.0
  • 255.255.255.192

6. Which statement is true about variable-length subnet masking?

  • Each subnet is the same size.
  • The size of each subnet may be different, depending on requirements.
  • Subnets may only be subnetted one additional time.
  • Bits are returned, rather than borrowed, to create additional subnets.

7. Why does a Layer 3 device perform the ANDing process on a destination IP address and subnet mask?

  • to identify the broadcast address of the destination network
  • to identify the host address of the destination host
  • to identify faulty frames
  • to identify the network address of the destination network

8. How many usable IP addresses are available on the 192.168.1.0/27 network?

  • 256
  • 254
  • 62
  • 30
  • 16
  • 32

9. Which subnet mask would be used if exactly 4 host bits are available?

  • 255.255.255.224
  • 255.255.255.128
  • 255.255.255.240
  • 255.255.255.248

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

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

11. If a network device has a mask of /26, how many IP addresses are available for hosts on this network?

  • 64
  • 30
  • 62
  • 32
  • 16
  • 14

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

  • network address
  • multicast address
  • host address
  • broadcast address

13. If a network device has a mask of /28, how many IP addresses are available for hosts on this network?

  • 256
  • 254
  • 62
  • 32
  • 16
  • 14

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

  • to uniquely identify a host on a network
  • to identify whether the address is public or private
  • to determine the subnet to which the host belongs
  • to mask the IP address to outsiders

15. A network administrator is variably subnetting a network. The smallest subnet has a mask of 255.255.255.224. How many usable host addresses will this subnet provide?​

  • 2
  • 6
  • 14
  • 30
  • 62

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

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

17. What is the most compressed representation of the IPv6 address 2001:0000:0000:abcd:0000:0000:0000:0001?

  • 2001:0:abcd::1
  • 2001:0:0:abcd::1
  • 2001::abcd::1
  • 2001:0000:abcd::1
  • 2001::abcd:0:1

18. What is the purpose of the command ping ::1?

  • It tests the internal configuration of an IPv6 host.
  • It tests the broadcast capability of all hosts on the subnet.
  • It tests the multicast connectivity to all hosts on the subnet.
  • It tests the reachability of the default gateway for the network.

19. At a minimum, which address is required on IPv6-enabled interfaces?

  • link-local
  • unique local
  • site local
  • global unicast

20. What is the interface ID of the IPv6 address 2001:DB8::1000:A9CD:47FF:FE57:FE94/64?

  • FE94
  • FE57:FE94
  • 47FF:FE57:FE94
  • A9CD:47FF:FE57:FE94
  • 1000:A9CD:47FF:FE57:FE94

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

  • 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 network portion of the address that has been provided by an ISP
  • a subnet ID that is used to identify networks inside of the local enterprise site
  • 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

22. What is the valid most compressed format possible of the IPv6 address 2001:0DB8:0000:AB00:0000:0000:0000:1234?

  • 2001:DB8:0:AB00::1234
  • 2001:DB8:0:AB::1234
  • 2001:DB8::AB00::1234
  • 2001:DB8:0:AB:0:1234

23. What is the prefix associated with the IPv6 address 2001:CA48:D15:EA:CC44::1/64?

  • 2001::/64
  • 2001:CA48::/64​
  • 2001:CA48:D15:EA::/64​
  • 2001:CA48:D15:EA:CC44::/64​

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

  • global unicast
  • link-local
  • loopback
  • unique local

25. Which IPv6 network prefix is only intended for local links and can not be routed?

  • 2001::/3
  • FC00::/7
  • FE80::/10
  • FEC0::/10

26. Your organization is issued the IPv6 prefix of 2001:0000:130F::/48 by your service provider. With this prefix, how many bits are available for your organization to create subnetworks if interface ID bits are not borrowed?

  • 8
  • 16
  • 80
  • 128

27. What is the subnet address for the IPv6 address 2001:D12:AA04:B5::1/64?

  • 2001::/64
  • 2001:D12::/64​
  • 2001:D12:AA04::/64​
  • 2001:D12:AA04:B5::/64​

28. Which type of IPv6 address is not routable and used only for communication on a single subnet?

  • global unicast address
  • link-local address
  • loopback address
  • unique local address
  • unspecified address

29. Which address type is not supported in IPv6?

  • private
  • multicast
  • unicast
  • broadcast

30. What is the minimum configuration for a router interface that is participating in IPv6 routing?

  • to have only a link-local IPv6 address
  • to have both an IPv4 and an IPv6 address
  • to have a self-generated loopback address
  • to have both a link-local and a global unicast IPv6 address
  • to have only an automatically generated multicast IPv6 address

31. A user calls to report that a PC cannot access the internet. The network technician asks the user to issue the command ping 127.0.0.1 in a command prompt window. The user reports that the result is four positive replies. What conclusion can be drawn based on this connectivity test?

  • The PC can access the network. The problem exists beyond the local network.
  • The IP address obtained from the DHCP server is correct.
  • The PC can access the Internet. However, the web browser may not work.
  • The TCP/IP implementation is functional.

32. Which command can be used to test connectivity between two devices using echo request and echo reply messages?

  • netstat
  • traceroute
  • ICMP
  • ping

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

  • TTL field
  • CRC field
  • Hop Limit field
  • Time Exceeded field

34. Which protocol provides feedback from the destination host to the source host about errors in packet delivery?

  • ARP
  • BOOTP
  • DNS
  • ICMP

35. Which utility uses the Internet Control Messaging Protocol (ICMP)?

  • RIP
  • DNS
  • ping
  • NTP

36. A network administrator can successfully ping the server at www.cisco.com, but cannot ping the company web server located at an ISP in another city. Which tool or command would help identify the specific router where the packet was lost or delayed?

  • ipconfig
  • netstat
  • telnet
  • traceroute

37. Which protocol is used by IPv4 and IPv6 to provide error messaging?

  • ICMP
  • NDP
  • ARP
  • DHCP

38. What message is sent by a host to check the uniqueness of an IPv6 address before using that address?

  • neighbor solicitation
  • ARP request
  • echo request
  • router solicitation

39. A technician is troubleshooting a network where it is suspected that a defective node in the network path is causing packets to be dropped. The technician only has the IP address of the end point device and does not have any details of the intermediate devices. What command can the technician use to identify the faulty node?

  • tracert
  • ping
  • ipconfig /flushdns
  • ipconfig /displaydns

40. A user who is unable to connect to the file server contacts the help desk. The helpdesk technician asks the user to ping the IP address of the default gateway that is configured on the workstation. What is the purpose for this ping command?

  • to obtain a dynamic IP address from the server
  • to request that gateway forward the connection request to the file server
  • to test that the host has the capability to reach hosts on other networks
  • to resolve the domain name of the file server to its IP address

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