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Network+ N10-007 > 1.0 Networking Concepts > Flashcards

1.0 Networking Concepts Flashcards

1
Q

what options will a DHCP server typically provide?

A

IP address, Subnet mask, default gateway, DNS address, and more

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2
Q

what is used to ensure that a DHCP client will always get the same IP address?

A

Reservation

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3
Q

what determines how long a DHCP client keeps an IP address?

A

Lease length

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4
Q

what provides dynamic IP addressing?

A

DHCP

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5
Q

a DHCP server issues a range of IP addresses. what is range called in DHCP?

A

Scope

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6
Q

what type of DNS record is used to allow a host to be contacted with different host names?

A

CNAME (canonical name or alias)

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7
Q

what type of DNS record is used to resolve an IP address to a host name?

A

PTR (pointer record for reverse lookup)

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8
Q

what is used to allow DHCP clients to register information with DNS?

A

Dynamic DNS

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9
Q

what is a DNS MX record used for?

A

To locate email servers (mail exchange)

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10
Q

what type of DNS record resolves a host name to an IPv4 address?

A

A or host record

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11
Q

what type of DNS record is used to give a host an alias?

A

CNAME (canonical name)

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12
Q

what type of DNS record resolves a host name to an IPv6 address?

A

AAAA record

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13
Q

what helps administrators plan, track, and manage the assignment of IP addresses in a network?

A

IPAM (IP address management)

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14
Q

what cloud service type provides hardware but requires customers to configure the hardware with desired operating systems and applications?

A

IaaS

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15
Q

what cloud service type provides hardware (such as servers) and preconfigured OS?

A

PaaS

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16
Q

what cloud service type provide users with an application that is managed by a cloud service provider?

A

SaaS

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17
Q

which wireless standard(s) use MIMO?

A

802.11n and 802.11ac.

MIMO (multiple input and multiple output)

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18
Q

what wireless protocols use 5.0GHz?

A

802.11a, 802.11n, 802.11ac

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19
Q

what wireless protocols use 2.4GHz?

A

802.11b, 802.11g, 802.11n

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20
Q

what can be performed to determine if interference is causing problems for a wireless network?

A

A site survey

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21
Q

what type of network connects multiple buildings in a small geographical area?

A

CAN

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22
Q

what type of network would you use to transfer files between two bluetooth devices?

A

PAN

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23
Q

which network topology causes all devices to fail if one device is disconnected?

A

Bus

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24
Q

what network topology ensures computers wait to communicate as a method of avoiding congestion?

A

Ring

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25
Q

what network topology provides the highest degree of redundancy?

A

Mesh

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26
Q

devices are connected in a network via an ethernet switch. what topology is being used?

A

Star

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27
Q

what topology has devices connected in a circle?

A

Ring

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28
Q

what IoT technology is primarily used for home automation?

A

Z-Wave

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29
Q

what type of network spans a large city area?

A

MAN

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30
Q

what address is assigned if DHCP doesn’t answer?

A

APIPA (starting with 169.254.y.z)

APIPA (automatic private internet protocol addressing)

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31
Q

what is the CIDR notation to support only two IP addresses?

A

/30

CIDR (classless inter-domain routing)

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32
Q

what type of address does a non-DHCP client use?

A

static or manually assigned

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33
Q

what notation is this using: 192.168.1.34/24?

A

CIDR notation

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34
Q

what type of address is this: 10.10.0.80?

A

IPv4 (private)

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35
Q

what is this address: 169.254.34.67?

A

APIPA address

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36
Q

what is the range of Class D addresses?

A

224.0.0.0 to 239.255.255.255

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37
Q

what is the range of Class C addresses?

A

192.0.0.0 to 223.255.255.254

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38
Q

what is the range of Class B addresses?

A

128.0.0.0 to 191.255.255.254

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39
Q

what is the range of Class A addresses?

A

1.0.0.0 to 126.255.255.254

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40
Q

what kind of IP addresses are used on the internet?

A

Public

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41
Q

what kind of IP addresses are used on internal networks

A

Private

Private IP address blocks, defined by the internet assigned numbers authority (IANA) are:

  1. 0.0.0 to 10.255.255.255
  2. 16.0.0 to 172.31.255.255
  3. 168.0.0 to 192.168.255.255
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42
Q

what is the CIDR notation for a network of only two devices creating a point-to-point connection between two sites?

A

/30 or /31

43
Q

are you expected to understand subnetting for the Network+ exam?

A

absolutely

44
Q

what number uses a base of 16?

A

Hexadecimal

45
Q

what DHCP feature would you use to ensure a wireless printer always receives the same IP address?

A

Reservation

46
Q

what type of routing protocol is RIP?

A

distance routing protocol

47
Q

what occurs if you plug a cable into two ports of an unprotected switch?

A

switching loop causing a broadcast storm

STP and RSTP protect against switching loops

48
Q

what protocol resolves IP addresses to MAC addresses?

A

ARP

49
Q

what is configured on a switch to create separate networks with separate broadcast domains?

A

VLAN

50
Q

what is configured on a switch to send all switch traffic to a single port?

A

port mirroring

51
Q

what protocol provides power on a twisted pair cable?

A

PoE, 802.3af

52
Q

what is used to restrict network traffic based on specific protocols?

A

Traffic shaping

53
Q

how does RIP calculate cost?

A

Hop count

RIP (routing information protocol)

54
Q

what creates a broadcast domain?

A

Routers and VLAN segments on a switch

55
Q

What is configured on a router to provide internet access to multiple clients?

A

PAT or NAT

56
Q

what type of address is this ::1?

A

IPv6 loopback address

57
Q

what type of address is this: 01:23:45:ab:cd:ef?

A

Media access control (MAC) or hardware address

58
Q

where is a broadcast packet sent?

A

To all other systems on the same network (not past routers or other VLAN segments)

59
Q

where is a unicast packet sent?

A

to one other system

60
Q

what routing protocol is considered a link state routing protocol, supports VLSM, and can be used on internal IPv4 networks (but not IPv6 networks)?

A

OSPF

IS-IS (intermediates system to intermediate system) is also a link state routing protocol that supports VLSM, but it works with IPv4 and IPv6

61
Q

when comparing wireless networks and wired networks, which one uses CSMA/CA?

A

wireless network

62
Q

what is used to dynamically assign MAC addresses to switch ports and restrict traffic based on the MAC address?

A

Sticky MAC

63
Q

what kind of switch is used to create VLANs?

A

Layer 3 switch

64
Q

how does CompTIA categorize BGP?

A

as a hybrid routing protocol

other routing protocols are categorized as distance vector routing protocols or link-state routing protocols

65
Q

how does OSPF calculate cost?

A

bandwidth (reference bandwidth of 100 Mbps)

66
Q

what standard uses timers to force devices to wait after detecting a collision?

A

CSMA/CD

67
Q

what does 802.3at define?

A

PoE+

68
Q

what routing protocol is considered a link state routing protocol, supports VLSM, and can be used with both IPv4 and IPv6

A

Intermediates system to intermediate system (IS-IS)

OSPF is also a link state routing protocol, that supports VLSM, but it only works with IPv4

69
Q

where is 802.1Q tagging handled?

A

on a switch

70
Q

what is the term for controlling the amount of certain types of traffic (such as video streaming) on a network?

A

Traffic shaping

71
Q

when comparing wireless networks and wired networks, which one uses CSMA/CD?

A

wired network

72
Q

how many broadcast domains are created on a 6-port switch?

A

1

73
Q

on What layer(s) of the OSI model does a NIC operate?

A

Layers 1 and 2 (Physical and Data link layers)

74
Q

name the seven layers of the OSI model from layer 1 to 7.

A

Physical, Data link, Network, Transport, Session, Presentation, Application

75
Q

what is layer 5 of the OSI model?

A

Session

76
Q

what is layer 2 of the OSI model?

A

Data link

77
Q

on what layer of the OSI model are VLANs defined?

A

layer 2 (data link layer)

78
Q

on what layer of the OSI model are IP addresses defined?

A

layer 3 (network layer)

79
Q

on what layer of the OSI model is data encapsulated into a packet?

A

layer 3 (network layer)

80
Q

on what layer of the OSI model is data sent as frames?

A

Layer 2 (data link layer)

81
Q

on what layer of the OSI model is JSON data analyzed?

A

Layer 6 (presentation layer)

JSON (JavaScript Object Notation)

82
Q

on what layer of the OSI model does a hub operate?

A

Layer 1 (physical layer)

83
Q

what port must be opened on a firewall to resolve internet host names to IP addresses?

A

UDP 53

DNS resolves names over UDP port 53

84
Q

what port must be opened on a firewall to allow secure traffic to web sites?

A

TCP port 443 (HTTPS)

85
Q

what port is used when resolving host names to IP addresses?

A

UDP 53

DNS uses UDP port 53 for name resolution

DNS uses TCP port when transferring information between DNS servers

86
Q

these flashcards should be your only study source? T or F

A

False

87
Q

what ports are used for email?

A

TCP port 25 (SMTP), TCP port 110 (POP3), and TCP port 143 (IMAP4)

88
Q

what port does SSH use?

A

TCP port 22

89
Q

what ports are used for web pages sent over the internet?

A

TCP ports 80 and 443 (HTTP and HTTPS)

90
Q

what protocol provides guaranteed delivery of IP traffic?

A

TCP

91
Q

what port should be opened to allow remote administration?

A

3389 (RDP)

92
Q

what protocol uses port 23?

A

Telnet

SSH is typically used instead of Telnet in most applications

93
Q

what ports are used by FTP?

A

TCP ports 20 and 21

94
Q

what does traffic on TCP port 443 provide that isn’t on TCP port 80?

A

transport-level encryption

95
Q

what port is used by LDAPS?

A

636

96
Q

what port is used by LDAP?

A

389

97
Q

what port is used by SFTP?

A

22

98
Q

what ports are used by DHCP?

A

67 and 68

99
Q

what ports are used by SNMPv3?

A

161 and 162

100
Q

what ports are used by SIP?

A

5060 and 5061

101
Q

what protocol uses connectionless sessions?

A

UDP

102
Q

what protocol uses connection-oriented sessions?

A

TCP

103
Q

what protocol uses port 69?

A

TFTP

104
Q

what port is used by NTP?

A

123

Network+ N10-007 (5 decks)

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