Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Professor Messer > Internet Protocols > Flashcards

Internet Protocols Flashcards

1
Q

What are the 3 types of Network topology (the road)

A

– Ethernet,
DSL Digital Subscriber Line: It allows data to be transmitted over the same copper telephone lines
cable system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are two types of protocols (box’s in truck)

A

TCP - Transmission Control Protocol UDP – User Datagram Protocol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

TCP and UDP are encapsulated inside of what

A

The internet protocol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

TCP and UDP are a part of which layer in the OSI (Open Systems Interconnection) model

A

Layer 4 the transport layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How many layers are in the OSI model

A

7

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does OSI model stand for

A

Open Systems Interconnection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Does UDP and TCP use multiplexing

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why is Transmission control protocol considered reliable

A

ensures that data is received correctly, and if any segments are lost during transmission, it requests retransmission.* Flow control
– The receiver can manage how much data is sent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the difference ofUser Datagram Protocol (UDP) in contrast to TCP

A

it’s connectionless
* “Unreliable” delivery
– No error recovery
– No reordering of data or retransmissions
* No flow control
– Sender determines the amount of data transmitted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are two common connectionless protocols that use UDP

A

– DHCP (Dynamic Host Configuration Protocol)
– TFTP (Trivial File Transfer Protocol)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are two connection-oriented protocols that use TCP and give a return receipt

A

– HTTPS (Hypertext Transfer Protocol Secure)
– SSH (Secure Shell)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

IPV4 sockets require what from the client and the server in the packages

A

– Server IP address, protocol,
server application port number
– Client IP address, protocol, client port number

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are Non-ephemeral ports_______
numbers 0 though:_____
Are they (mostly) assigned to the client or server

A

Permanent port numbers
0 - 1,023
Usually on a server or service

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

TCP and UDP ports can be any number between

A

0 and 65,535

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Do port numbers provide security

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Can TCP and UDP port number be the same

A

Yes there can be a service running on TCP port 80
and a different service running on UDP port 80
but that can be confusing so we don’t tend to do it

17
Q

What is ephemeral

A

Temporary

18
Q

Some application on server side change port numbers (use ephemeral) T or F

A

True

19
Q

If TCP is more reliable why would you use UDP

A

Real-time communication

20
Q

What is DHCP (Dynamic Host Configuration Protocol) used for

A

To automatically assign IP addresses to our device

21
Q

Ephemeral ports Temp can be port num ___ through_____

A

– Ports 1,024 through 65,535

22
Q

What is FTP - File Transfer Protocol
What are 2 port numbers used by FTP

A

A protocol that transfers files from one device to another
tcp/20 (active mode data) tcp/21 (control)

23
Q

Does SSH- secure shell use TCP or UDP
What port number does it use

A

TCP
Encrypted communication link - tcp/22

24
Q

What is Telecommunication Network
Is it encrypted
what port number does it use

A

Remotely accessing and managing computers or network devices over a network-like Shell
- its not encryped
- tcp/23

25
Q

What protocol do email servers use to send emails
SMTP
what port number does it use

A

Simple mail transfer protocol
TCP/25

26
Q

What 2 protocols are used to receive emails

A

– IMAP, POP3

27
Q

What does DNS stand for
What does it do
What port does it commonly use

A

Domain Name System
converts names to IP addresses
UDP/53

28
Q

What does DHCP stand for
what does it do
What 2 ports does it use
The IP addresses assigned are dynamic meaning…..

A

Dynamic Host Configuration Protocol
configuration of IP address, subnet mask and other options
udp/67, udp/68
They are temporary once done using the go back into a pool

29
Q

Network admin can use DHCP reservations which means

A

Can configure DHCP servers to assign the same IP address to certain devices

30
Q

what does HTTP and HTTPS stand for
what port does each one use

A
  • Hypertext Transfer Protocol TCP/80
  • Hypertext Transfer Protocol Secure TCP/443
31
Q

POP3 and IMAP are protocols use to receive mail
what do they stand for and what are their port numbers

A

POP3
tcp/110
Post Office Protocol version 3
IMAP4
tcp/143
Internet Message Access Protocol v4

32
Q

Windows commonly use SMB to transfer files to other windows devices
what does it stand for
what port does it commonly use
It’s also called CIFS
what does it stand for

A

Server message block
TCP/445
Common Internet File System

33
Q

Windows commonly use Server Message Block to transfer files to other windows devices
what 2 protocols does it use to communicate to an older windows machine
and what are their port numbers
on most modern devices those 2 protocols aren’t used and devices can communicate using a direct SNB connection using what port

A

NetBIOS udp/137 NetBIOS name service
NetBIOS tcp/139 NetBIOS session service
Direct SNB connection can be established using TCP/445

NetBIOS is an abbreviation of Network Basic Input/Output System. The primary purpose of NetBIOS is to allow applications on separate computers to communicate and establish sessions to access shared resources, such as files and printers, and to find each other over a local area network (LAN)

34
Q

SNMP: simple network management protocol
What is it
you query devices requesting performance details using what port __
you can also configure the infrastructure device to monitor for certain metrics and if it exceeds any of those metrics it can send an alert call a TRAP what port does it use

A

a protocol used for managing and monitoring network devices
Queries: udp/161
Traps: udp/162

35
Q

What does LDAP stand for
what does it do
what port does it use
hint: one common directory is Microsoft active directory

A

LDAP (Lightweight Directory Access Protocol) -
Tcp/389
* Store and retrieve information in a network directory

36
Q

RDP - Remote Desktop Protocol uses what port and is used for what

A

Share a desktop from a remote location over tcp/3389

Professor Messer (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions