Cisco Semester 1, CH 11-13 Quiz Questions

Which three addresses are valid public addresses?

-128.107.12.117 -64.104.78.227 -198.133.219.17

Which two parts are components of an IPv4 address?

-network -host

Given a /48 Global Routing Prefix and a /64 prefix, what is the subnet portion of the following address: 2001:db8:cafe:1111:2222:3333:4444:5555

1111

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

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

Which IPv6 prefix is reserved for communication between devices on the same link?

FE80::/10

Which type of ICMPv6 message would a host send to acquire an IPv6 configuration when booting up?

Router Solicitation Message

What is the minimum configuration for a router interface that is enabled for IPv6?

To have a link-local IPv6 address

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

directed broadcast

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

ping

A user executes a traceroute over IPv6. At what point would a router in the path to the destination device drop the packet?

when the value of the Hop Limit field reaches zero

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

Which address type is not supported in IPv6?

Broadcast

What is the most important motivating factor for moving to IPv6?

Depletion of IPv4 addresses

True or False. RA messages are sent to all IPv6 routers by hosts requesting addressing information.

False

Which part of a GUA is assigned by the ISP?

Global Routing Prefix

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

Hop Limit Field

Which protocol is used by the traceroute command to send and receive echo-requests and echo-replies?

ICMP

Which two statements are correct about private IPv4 addresses?

-Private IPv4 addresses are assigned to devices within an organization's intranet -Any organization can use the 10.0.0.0/8 address

Which two situations are the result of excessive broadcast traffic?

-Slow network operations -Slow device operations

A host is transmitting a broadcast. Which host or hosts will receive it?

All hosts in the same subnet

Which two things can be determined by using the ping command?

-The destination device is reachable through the network -the average time it takes a packet to reach the destination and for the response to return to the source

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

/27

What is the recommended prefix length for most IPv6 subnets?

/64

Your organization is issued the IPv6 prefix of 2001:db8:130f::/48 by your service provider. With this prefix, how many bits are available for your organization to create /64 subnetworks if interface ID bits are not borrowed?

16

What is the prefix for the host address 2001:DB8:BC15:A:12AB::1/64?

2001:DB8:BC15:A

How many bits must be borrowed from the host portion of an address to accommodate a router with five connected networks?

3

Given a /32 Global Routing Prefix and a /64 prefix, how many bits would be allocated for the Subnet ID?

32

What is the usable number of host IP addresses on a network that has a /26 mask?

62

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

To identify the network address of the destination network

What is the purpose of ICMP messages?

To provide feedback of IP packet transmissions

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

It tests the internal configuration of an IPv6 host

Which dynamic addressing method for GUAs is the one where devices rely solely on the contents of the RA message for their addressing information?

SLAAC

Which service provides dynamic global IPv6 addressing to end devices without using a server that keeps a record of available IPv6 addresses?

SLAAC

Which field in an IPv6 GUA is used for subnetting?

Subnet ID

Which statement is true about variable-length subnet masking?

The size of each subnet may be different, depending on requirements

Which two types of ICMP messages are common to both ICMPv4 and ICMPv6?

-Destination or Service Unreachable -Time exceeded

What are the two methods a device can use to generate its own IPv6 interface ID?

-EUI-64 -Random

What are two types of IPv6 unicast addresses?

-link-local -loopback

True or False: The Subnet ID field in an GUA must borrow bits from the interface ID

False

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?

tp test that the host has the capability to reach hosts on other networks

What are three parts of an IPv6 global unicast address?

-A global routing prefix that is used to identify the network portion -An interface ID -A subnet ID

A network administrator is testing network connectivity by issuing the ping command on a router. Which symbol will be displayed to indicate that a time expired during the wait for an ICMP echo reply message?

.

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

FE80::/10

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

ICMP

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

ICMP

What type of IPv6 address begins with fe80?

LLA

Which organization or group of organizations receives IP addresses from IANA and is responsible for allocating these addresses to ISPs and some organizations?

RIRs

Which devices will not forward an IPv4 broadcast packet by default?

Router

What is a function of the tracert command that differs from the ping command when they are used on a workstation?

The tracert command shows the information of routers in the path

True or False: 4 out of 5 RIRs no longer have enough IPv4 addresses to allocate to customers on a regular basis.

True

True or False? IPv6 was designed with subnetting in mind.

True

Which is the compressed format of the IPv6 address fe80:0000:0000:0000:0220:0b3f:f0e0:0029?

fe80::220:b3f:f0e0:29

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

neighbor solicitation

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

ping

A user issues a ping fe80:65ab:dcc1::100 command and receives a response that includes a code of 4 . What does this code represent?

port unreachable

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

to determine the subnet to which the host belongs

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?

traceroute

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 TCp/IP implementation is functional

Which two statements are correct about public IPv4 addresses?

-To access a device over the internet, the destination IPv4 address must be a public one -Public IPv4 address exhaustion is a reason why there are private IPv4 address and why organization are transitioning to IPv6

A network administrator has received the IPv6 prefix 2001:DB8::/48 for subnetting. Assuming the administrator does not subnet into the interface ID portion of the address space, how many subnets can the administrator create from the /48 prefix?

65536

Which of the following techniques use native IPv6 connectivity?

Dual Stack

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

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

time exceeded

Which address is a valid IPv6 link-local unicast address?

FE80::1:4545:6578:ABC1

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

IP is properly installed on the host

Which dynamic addressing method for GUAs is the one where devices get their IPv6 configuration in a RA message and request DNS information from a DHCPv6 server?

SLAAC and Stateless DHCP

Which dynamic addressing method for GUAs is the one where devices rely solely on a DHCPv6 server for their addressing information?

Stateful DHCP

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

link-local

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

link-local

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

link-local

What is the network address for the IPv6 address 2001:DB8:AA04:B5::1/64

2001:DB8:AA04:B5::/64

What is the prefix associated with the IPv6 address 2001:DB8:D15:EA:CC44::1/64?

2001:DB8:D15:EA::/64

What is the most compressed representation of the IPv6 address 2001:0db8:0000:abcd:0000:0000:0000:0001?

2001:db8:0:abcd::1

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

A9CD:47FF:FE57:FE94

Which type of IPv6 unicast address is not routable between networks?

LLA