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Chapter 6 (Intro to Internet Protocol) Flashcards

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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
How do you start remote desktop?
Start Menu - just search for Remote Desktop
26
AKA: VoIP protocol?
SIP (Session Initiation Protocol)
27
What "signaling" protocol is used to construct/deconstruct multimedia communications eg: voice/video call, vid conferencing, online Internet games?
SIP (VoIP)
28
Two protocols for VoIP?
SIP (Session Initiation Protocol) RTP (Real-time Transport Protocol)
29
SNMP stands for?
Simple Network Management Protocol.
30
Function of SNMP?
Collects and manipulates network information.
31
"Baseline" in SNMP?
a report delimiting the operational traits of a healthy network.
32
In SNMP the network watchdogs are?
Agents
33
In SNMP when an abberation occurs an agent sends an alert called what?
A trap
34
What protocol sets up up a secure Telnet session over std TCP/IP?
Secure Shell (SSH)
35
HTTP stands for?
Hypertext Transfer Protocol
36
SSH uses port?
22
37
HTTPS uses port?
443
38
What protocol is used to sycn clocks on comps?
NTP (Network Time Protocol)
39
What protocol is used to secure file copies via SSH?
Secure Copy Protocol
40
LDAP is?
Lightweight Directory Access Protocol
41
IGMP is?
Internet Group Management Protocol
42
What protocol is used for managing IP multicast sessions?
IGMP (Internet Group Management Group)
43
The host machines in an IP network uses what type of messages to become a member of a group or to quit a group?
IGMP (Internet Group Management Protocol)
44
DNS stands for?
Domain Name Service
45
Function of DNS?
Resolves hostnames to corresponding IP address.
46
What is FQDN?
Fully qualified domain name.
47
DHCP differs from BOOTP (Bootstrap Protocol) how?
BootP assigns an IP address to a host but the host's hardware address much be entered manually in a BootP table.
48
BootP is designed to be able to do what major thing DHCP can't?
Send an OS that a host can boot from.
49
Some of the info a DHCP server can provide?
* IP address * Subnet Mask * Domain name * Default Gateway (routers) * DNS * WINS info. (Windows Internet Naming Service)
50
DHCP is _______, which means it uses User Datagram Protocol (UDP) at the Transport Layer
Connectionless
51
On what layers do clients send DHCP DISCOVER messages?
Layer 2 and 3
52
DCHP DISCOVER message contents? Name the layers.
Layer 2: A Fs | Layer 3: 255.255.255.255
53
DCHP client 4 step process.
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
Main purpose of the host-to-host layer?
Shield the upper layer applications from the complexities of the network.
55
2 Protocols at the Host-to-Host layer?
TCP and UDP
56
What takes large blocks of info from an app and breaks them into segments?
TCP (Transmission Control Protocol)
57
In a reliable transport operation, a device sets up what with a remote device by creating a session?
Connection-oriented
58
TCP is what kind of duplex?
Full.
59
A User Datagram Protocol (UDP) is sometimes referred to as a?
Thin protocol.
60
Why does DNS use UDP?
B/c DNS handles its own reliability.
61
UDP is an ________ and _______ protocol.
unreliable. connectionless. B/c UDP assumes that the application will use its own reliability method.
62
Key features of TCP?
* Sequenced * Reliable * Connection-oriented * Virtual Circuit * High overhead * Acks * Windowing flow control
63
Key features of UDP?
* Unsequenced * Unreliable * Connectinless * No virtual circuit * Low overhead * No ack * no windowing or flow control
64
TCP is analagous to making a phone call, where someone asks, "did you get that?" etc. UDP is analagous to what?
a postcard. you just send it and never know if the person gets it.
65
Unicast messaging is used for all network processes in which what??
A private or unique resource is requested.
66
Telnet port #?
23
67
SMTP port #?
25
68
HTTP port #?
80
69
FTP port #?
20,21
70
DNS port #?
53
71
HTTPS port #?
443
72
POP3 port #?
110
73
UDP SNMP port #?
161
74
UDP TFTP port #?
69
75
UDP DNS port #?
53
76
UDP BOOTPS/DHCP port #?
67,68
77
NTP port #?
123
78
IMAP4 port #?
143
79
RDP port #?
3389
80
Can DNS use both TCP and UDP?
Yes. On port 53.
81
2 main reasons for the Internet's layer in the DoD model?
1. Routing | 2. Provide a single network interface to the upper layers.
82
The DoD Internet Layer protocols?
1. (IP) Internet Protocol 2. ICMP (Internet Control Message Protocol) 3. ARP (Address Resolution Protocol) 4. RARP (Reverse Address Resolution Protocol)
83
A subnet mask determines what?
What part of the IP address is the network and what part is the host
84
Class A leading numbers?
1-126
85
Class B leading numbers?
128-191
86
Class C leading numbers?
192-223
87
Class D subnet leading numbers?
224-239
88
Class D is used for?
Multicast
89
Class E leading numbers?
240-254
90
Will private addresses be routed on the Internet?
No
91
Private ranges of IP addresses?
10. 0.0.0-10.255.255.255 172. 16.0.0-172.31.255.255 192. 168.0.0-192.168.255.255
92
Define Protocol
A set of rules that governs the communication between computers on a network.
93
The rules of a protocol include guidelines that regulate what?
* Method of access * Types of cabling * Speed of size data transfer

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