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Network+ Exam Prep > 5.1 > Flashcards

5.1 Flashcards

1
Q

Network Address is the

A

first address in an address range is used to identify the network itself.

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2
Q

Broadcast Address is the

A

last address in the range is the broadcast address, and it is used to send messages to all hosts on the network.

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3
Q

Class A Address Range? Subnet Mask?

A

Address Range: 1–126;

1.0.0.0 to 126.255.255.255

Subnet Mask: 255.0.0.0

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4
Q

Class B Address Range? Subnet Mask?

A

Address Range:128–191 ;

128.0.0.0 to 191.255.255.255

Subnet Mask: 255.255.0.0;

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5
Q

Class C Address Range? Subnet Mask?

A

Address Range:192–223;

192.0.0.0 to 223.255.255.255

Subnet Mask: 255.255.255.0

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6
Q

Class D Address Range?

A

Address Range:224–239

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7
Q

Class E Address Range?

A

Address Range: 240–255

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8
Q

Classless addressing is made possible using

A

Classless Inter-Domain Routing (CIDR).

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9
Q

CIDR allows you to use part of an octet for the network address. This is called

A

partial subnetting, or variable-length subnet masking (VLSM).

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10
Q

Static addressing is best used in the following situations:

A

On networks with a very small number of hosts.

Host that require a permanent address

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11
Q

If the DHCP Server is on a different subnet than the client, then the DHCP requests sent by the client will not reach the server unless

A

DHCP Relay Agent Has been setup

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12
Q

Record types - A, AAA

A

maps an IPv6 (128-bit) DNS hostname to an IP address.

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13
Q

SPF and DKIM records are quick

A

methods for improving your email delivery rates

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14
Q

An SRV record is used to (2)

A
  • locate a particular host that provides a particular service
  • SRV records are created automatically by Windows as needed.
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15
Q

The MX (Mail Exchanger) record identifies

A

servers that can be used to deliver email.

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16
Q

The CNAME (Canonical Name) record provides alternate

A

names to hosts that already have a host record.

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17
Q

The NS (Name Server) resource record identifies all

A

name servers that can perform name resolution for the zone.

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18
Q

A PTR record maps

A

an IP address to a hostname (in this way, it points to an A record).

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19
Q

When you Dual Stack the router will also need to be configured to run

A

both protocols, so that IPv4 messages are forwarded to the IPv4 server and IPv6 messages are forwarded to the IPv6 server.

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20
Q

Tunneling

A

To move IPv6 packets through the IPv4 network, they are encapsulated (or ‘wrapped’) within IPv4 packets that can be transferred through the IPv4 network.

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21
Q

IntraSite Automatic Tunnel Addressing Protocol (ISATAP) is used within

A

a private network to connect an IPv6 network to an IPv4 network

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22
Q

The ISATAP router is a

A

dual stack router running both IPv4 and IPv6.

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23
Q

The ISATAP router takes IPv4 packets and

A

converts them into IPv6 packets to be sent to the IPv6 network.

24
Q

The ISATAP router would not be used between sites separated by the internet because it is

A

designed only for intra-site implementations (meaning within a single site).

25
Q

Teredo tunneling is used to send

A
  • IPv6 packets from one host to another through an IPv4 network.
  • Teredo is a host-to-host tunneling protocol.
26
Q

In Teredo Tunneling the sending host performs

A

the encapsulation on one end, while the receiving host performs the de-encapsulation on the other en

27
Q

6to4 Tunneling can be used between sites.

A

Connecting one Network to another Network

28
Q

6to4 Tunneling requires a router that sits

A

on the edge of the internet at each location, and the router is a dual stack router that can run IPv4 and IPv6.

29
Q

Neighbor Discovery (ND) is used by a host to: (3)

A

Resolve the link-layer address of a neighboring host to which an IPv6 packet is being forwarded.

  • Determine when the link-layer address of a neighboring host has changed.
  • Determine whether a neighbor is still reachable.
30
Q

Neighbor Discovery (ND) is used by routers to do the following: (2)

A
  • Advertise their presence -Inform hosts of a better next
  • hop address to forward packets for a specific destination.
31
Q

Internet Protocol Address Management or IPAM allows you to (3)

A

Plan, Track, and Manage IP addresses using integrated DHCP and DNS information.

32
Q

Link-local addresses facts (3)

A
  • Are only valid on the current subnet.
  • They use an FE80::/10 prefix and include any address
  • All IPv6 hosts must have at least one link-local address, although each interface can have multiple addresses.
33
Q

Link-local addresses are used for (3)

A
  • Automatic address configuration
  • Neighbor discovery
  • Subnets that have no routers.
34
Q

Link-local addresses are

A

-Non-routable.

Routers don’t forward packets to link-local addresses on other subnets.

35
Q

IPv6 defines three types of unicast addresses that can be assigned to a network host:

A

link-local unique local global unicast

36
Q

Unique local addresses facts are

A

private addresses used for communication within a site or between a limited number of sites

37
Q

Unique local addressing is used for

A

network communications that don’t cross a public network; they’re the equivalent of private addressing in IPv4.

38
Q

Because unique local addresses aren’t registered with IANA,

A

they can’t be used on a public network (such as the internet) without address translation.

39
Q

Unique local addresses have a prefix that begins with

A

FC or FD.

Exp: FC00::/7

40
Q

Global unicast addresses is made up of

A

all IPv6 addresses that haven’t been specifically reserved for other purposes

41
Q

The global unicast addressing scheme allows you to define how many IPv6 subnets.

A

216 IPv6 subnets

42
Q

All subnet addresses within the same organization must begin with the same global routing prefix but

A

are uniquely identified using a different value in the subnet field.

43
Q

Packets sent to a multicast address are

A

sent to all interfaces identified by that address.

44
Q

Multicast addresses are the equivalent of the

A

IPv4 subnet broadcast address

45
Q

By using a different multicast address for different functions,

A

devices that have no need to participate in the function ignore the multicast.

46
Q

The local loopback address for a host is

A

0:0:0:0:0:0:0:1 or ::1

47
Q

Using stateless autoconfiguration, IPv6 hosts automatically generate the interface ID and learn the subnet prefix and default gateway through the

A

Neighbor Discovery Protocol (NDP).

48
Q

Neighbor Discovery Protocol (NDP) uses two messages for auto-configuration:

A

Router solicitation (RS) and Router advertisement (RA).

49
Q

Router Solicitation (RS) is a message sent

A

by the client to request that routers respond.

50
Q

Router Advertisement (RA) is a message sent

A

by the router periodically and in response to Router Solicitation messages to inform clients of the IPv6 subnet prefix and the default gateway address.

51
Q

DHCPv6 operates in one of two different modes:

A

stateful and stateless

52
Q

In stateful DHCPv6, the DHCP server provides each client with the (3)

A
  • IP address
  • Default gateway
  • Other IP configuration information (such as the DNS server IP address).
53
Q

In stateful DHCPv6 The DHCP server tracks the status

A

OR STATE of the client.

54
Q

MulitCasting is typically used for

A

streaming video and audio applications such as video conferencing

55
Q

In stateless DHCPv6, the DHCP server does NOT provide the client with

A

an IP address or track each client’s status.

Network+ Exam Prep (11 decks)

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