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Network+ > Chapter 6 (Intro to Internet Protocol) > Flashcards

Chapter 6 (Intro to Internet Protocol) Flashcards

1
Q

TCP/IP stands for?

A

Transmission Control Protocol/Internet Protocol

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2
Q

What is the IETF

A

Internet Engineering Task Force. (Resp. for maintaining RFCs for the Internet

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3
Q

TCP was divided into 2 distinct protocols when? And, what are they?

A

TCP and IP in ‘78

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4
Q

TCP/IP replaced what?

A

Network Control Protocol (NCP)

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5
Q

ARPA stands for?

A

Advanced Research Projects Agency.

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6
Q

Who created ARPAnet? When?

A

DOD in ‘57

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7
Q

Four layers of the DoD Model?

A
  1. Network Access 2. Internet 3. Host-to-Host 4. Process/Application.
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8
Q

DoD Network Access layer = what OSI layer?

A

Physical and Data Link

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9
Q

DoD Internet Layer = what OSI layer?

A

Network

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10
Q

DoD Host-to-Host Layer = what OSI layer?

A

Transport

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11
Q

DoD Process/Application layer = what OSI layers?

A

Session. Presentation. Application.

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12
Q

DoD Host-to-Host function

A

Creating reliable end-to-end communication and error-free delivery of data. Packet sequencing and data integrity.

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13
Q

DoD Internet Layer function

A

Logical addressing of hosts by giving them an IP address and routing of packets among multiple networks.

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14
Q

DoD Network Access layer function

A

Hardware addressing. Defines protocols for the physical xmission of data.

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15
Q

What program is used when you need to xfer files over an encrypted connection?

A

Secure File Transfer Protocol (SFTP)

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16
Q

What is the stripped down, stock version of FTP?

A

Trivial File Transfer Protocol (TFTP)

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17
Q

SMTP is used to do what with mail?

A

Send

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18
Q

POP3 is used to do what with mail?

A

Receive

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19
Q

IMAP stands for?

A

Internet Message Access Protocol

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20
Q

What’s the current version of IMAP?

A

4

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21
Q

RDP is what?

A

Remote Desktop Protocol

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22
Q

Who developed RDP?

A

uSoft

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23
Q

Official name for uSoft’s RDP server sw?

A

Remote Desktop Services

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24
Q

Official name of uSofts RDP clients sw?

A

Remote Desktop Connection

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25
Q

How do you start remote desktop?

A

Start Menu - just search for Remote Desktop

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26
Q

AKA: VoIP protocol?

A

SIP (Session Initiation Protocol)

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27
Q

What “signaling” protocol is used to construct/deconstruct multimedia communications eg: voice/video call, vid conferencing, online Internet games?

A

SIP (VoIP)

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28
Q

Two protocols for VoIP?

A

SIP (Session Initiation Protocol) RTP (Real-time Transport Protocol)

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29
Q

SNMP stands for?

A

Simple Network Management Protocol.

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30
Q

Function of SNMP?

A

Collects and manipulates network information.

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31
Q

“Baseline” in SNMP?

A

a report delimiting the operational traits of a healthy network.

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32
Q

In SNMP the network watchdogs are?

A

Agents

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33
Q

In SNMP when an abberation occurs an agent sends an alert called what?

A

A trap

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34
Q

What protocol sets up up a secure Telnet session over std TCP/IP?

A

Secure Shell (SSH)

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35
Q

HTTP stands for?

A

Hypertext Transfer Protocol

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36
Q

SSH uses port?

A

22

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37
Q

HTTPS uses port?

A

443

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38
Q

What protocol is used to sycn clocks on comps?

A

NTP (Network Time Protocol)

39
Q

What protocol is used to secure file copies via SSH?

A

Secure Copy Protocol

40
Q

LDAP is?

A

Lightweight Directory Access Protocol

41
Q

IGMP is?

A

Internet Group Management Protocol

42
Q

What protocol is used for managing IP multicast sessions?

A

IGMP (Internet Group Management Group)

43
Q

The host machines in an IP network uses what type of messages to become a member of a group or to quit a group?

A

IGMP (Internet Group Management Protocol)

44
Q

DNS stands for?

A

Domain Name Service

45
Q

Function of DNS?

A

Resolves hostnames to corresponding IP address.

46
Q

What is FQDN?

A

Fully qualified domain name.

47
Q

DHCP differs from BOOTP (Bootstrap Protocol) how?

A

BootP assigns an IP address to a host but the host’s hardware address much be entered manually in a BootP table.

48
Q

BootP is designed to be able to do what major thing DHCP can’t?

A

Send an OS that a host can boot from.

49
Q

Some of the info a DHCP server can provide?

A
  • IP address
  • Subnet Mask
  • Domain name
  • Default Gateway (routers)
  • DNS
  • WINS info. (Windows Internet Naming Service)
50
Q

DHCP is _______, which means it uses User Datagram Protocol (UDP) at the Transport Layer

A

Connectionless

51
Q

On what layers do clients send DHCP DISCOVER messages?

A

Layer 2 and 3

52
Q

DCHP DISCOVER message contents? Name the layers.

A

Layer 2: A Fs

Layer 3: 255.255.255.255

53
Q

DCHP client 4 step process.

A
  1. Client broadcasts DHCP Discover message on Port 67
  2. DHCP server that received sends a unicast DHCP Offer message back to host.
  3. Client broadcasts to the server a DHCP Request message.
  4. DHCP server finalizes the exchange with a unicast DHCP Acknowledgement message.
54
Q

Main purpose of the host-to-host layer?

A

Shield the upper layer applications from the complexities of the network.

55
Q

2 Protocols at the Host-to-Host layer?

A

TCP and UDP

56
Q

What takes large blocks of info from an app and breaks them into segments?

A

TCP (Transmission Control Protocol)

57
Q

In a reliable transport operation, a device sets up what with a remote device by creating a session?

A

Connection-oriented

58
Q

TCP is what kind of duplex?

A

Full.

59
Q

A User Datagram Protocol (UDP) is sometimes referred to as a?

A

Thin protocol.

60
Q

Why does DNS use UDP?

A

B/c DNS handles its own reliability.

61
Q

UDP is an ________ and _______ protocol.

A

unreliable. connectionless.

B/c UDP assumes that the application will use its own reliability method.

62
Q

Key features of TCP?

A
  • Sequenced
  • Reliable
  • Connection-oriented
  • Virtual Circuit
  • High overhead
  • Acks
  • Windowing flow control
63
Q

Key features of UDP?

A
  • Unsequenced
  • Unreliable
  • Connectinless
  • No virtual circuit
  • Low overhead
  • No ack
  • no windowing or flow control
64
Q

TCP is analagous to making a phone call, where someone asks, “did you get that?” etc. UDP is analagous to what?

A

a postcard. you just send it and never know if the person gets it.

65
Q

Unicast messaging is used for all network processes in which what??

A

A private or unique resource is requested.

66
Q

Telnet port #?

A

23

67
Q

SMTP port #?

A

25

68
Q

HTTP port #?

A

80

69
Q

FTP port #?

A

20,21

70
Q

DNS port #?

A

53

71
Q

HTTPS port #?

A

443

72
Q

POP3 port #?

A

110

73
Q

UDP SNMP port #?

A

161

74
Q

UDP TFTP port #?

A

69

75
Q

UDP DNS port #?

A

53

76
Q

UDP BOOTPS/DHCP port #?

A

67,68

77
Q

NTP port #?

A

123

78
Q

IMAP4 port #?

A

143

79
Q

RDP port #?

A

3389

80
Q

Can DNS use both TCP and UDP?

A

Yes. On port 53.

81
Q

2 main reasons for the Internet’s layer in the DoD model?

A
  1. Routing

2. Provide a single network interface to the upper layers.

82
Q

The DoD Internet Layer protocols?

A
  1. (IP) Internet Protocol
  2. ICMP (Internet Control Message Protocol)
  3. ARP (Address Resolution Protocol)
  4. RARP (Reverse Address Resolution Protocol)
83
Q

A subnet mask determines what?

A

What part of the IP address is the network and what part is the host

84
Q

Class A leading numbers?

A

1-126

85
Q

Class B leading numbers?

A

128-191

86
Q

Class C leading numbers?

A

192-223

87
Q

Class D subnet leading numbers?

A

224-239

88
Q

Class D is used for?

A

Multicast

89
Q

Class E leading numbers?

A

240-254

90
Q

Will private addresses be routed on the Internet?

A

No

91
Q

Private ranges of IP addresses?

A
  1. 0.0.0-10.255.255.255
  2. 16.0.0-172.31.255.255
  3. 168.0.0-192.168.255.255
92
Q

Define Protocol

A

A set of rules that governs the communication between computers on a network.

93
Q

The rules of a protocol include guidelines that regulate what?

A
  • Method of access
  • Types of cabling
  • Speed of size data transfer

Network+ (8 decks)

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