2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes Flashcards

Question 1

Q

TCP & UDP are transported inside…?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

IP packets

Question 2

Q

TCP or UDP may be referred to as operating at…

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

the transport layer of OSI model (OSI layer 4)

Question 3

Q

What is TCP/UDP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Transport layer protocols used for data transmissions over networks

Ports are endpoints where communication occurs

Question 4

Q

What do connection-oriented sessions mean?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Every packet sent is checked for delivery.

Question 5

Q

Meaning of TCP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Transmission Control Protocol

Question 6

Q

Meaning of UDP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

User Datagram Protocol

Question 7

Q

What type of protocol is TCP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Connection-oriented protocol

Question 8

Q

How does TCP provide reliable delivery?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

By making sure data sent has been verified as being received to the receiver

Question 9

Q

What type of protocol is UDP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Connectionless protocol

Question 10

Q

Why is UDP unreliable?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

There’s no acknowledgement sent by receiver, making it unknown if the data sent was actually received by the receiver

Question 11

Q

Importance of UDP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Being able to send data very quickly over the network

Question 12

Q

UDP is most associated with..?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Real time communication

(live communication, where you cant stop or retransmit info)

Question 13

Q

Protocols using UDP have no confirmation of data sent, so its up to the…

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

app to keep track of who has & hasn’t received data

Question 14

Q

Purpose of port numbers?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

To identify which service will receive data

Question 15

Q

How does TCP establish network connections?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

3-way handshake (aka TCP socket connection)

Question 16

Q

TCP

Process of three-way handshake?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

SYN packet
SYN-ACK packet
ACK packet

(Client sends it)
(Server sends it)
(Client sends it)

Question 17

Q

When is Connection-oriented TCP used?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

When data integrity is needed

Data integrity = data is unaltered & undamaged

Question 18

Q

When is Connectionless UDP used?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

When speed & efficiency is needed

Question 19

Q

What do protocols do?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Handle data transfer details

Question 20

Q

What does the internet run on?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: TCP vs UDP

Answer

A

Transmission Control Protocol/Internet Protocol (TCP/IP) suite

(Protocols & services that power & manage networks)

(its named that way because most TCP/IP protocols use TCP rather than UDP)

Question 21

Q

Meaning of FTP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

File Transfer Protocol

Question 22

Q

Meaning of SFTP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Secure File Transfer Protocol

Question 23

Q

Meaning of TFTP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Trivial File Transfer Protocol

Question 24

Q

FTP port(s)?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

TCP/20-21

TCP/20 (Active mode data) & TCP/21 (Control)

Question 25

Q

What is FTP TCP/20 for?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Data transfers

tcp/20 (acive mode data)

Question 26

Q

What is FTP TCP/21 for?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

To control the data transfer

tcp/21 (control)

Question 27

Q

Purpose of FTP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

To transfer data/files between devices

Question 28

Q

What does FTP commonly require?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

authentication to log in to that remote device

i.e. username & password

Question 29

Q

Common protocol of:

TCP/20-21

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 30

Q

What FTP option is NOT connection-oriented?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 31

Q

Purpose of TFTP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

To transfer files between devices with limited functionality

(No authentication/encryption & only read/write operations)

Question 32

Q

Meaning of SSH?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Secure Shell

Question 33

Q

SSH port(s)?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 34

Q

Common protocol of:

TCP/22

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 35

Q

Purpose of SSH?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Encrypts communication channels

Network services like remote login & data transfers

Question 36

Q

SSH is a more secure replacement to…?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

FTP & Telnet

Question 37

Q

Protocol(s) that enables to remotely access devices via terminal/CLI?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

SSH & Telnet

Question 38

Q

What is required to use SSH on Windows?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Software

like puTTY

Question 39

Q

Meaning of Telnet?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: **Ports & Protocols

Answer

A

Telecommunication Network

Question 40

Q

Telnet port(s)?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 41

Q

Common protocol of:

TCP/23

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 42

Q

Purpose of Telnet?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

To provide unencrypted remote terminal/CLI access to a device

over the Internet or local network

Question 43

Q

Meaning of SMTP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Simple Mail Transfer Protocol

Question 44

Q

SMTP port(s)?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 45

Q

Purpose of SMTP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

For email clients to send emails to an email server

Question 46

Q

Common protocol of:

TCP/25

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 47

Q

Meaning of DNS?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Domain Name System

Question 48

Q

DNS port(s)?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 49

Q

Common protocol of:

UDP/53

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Question 50

Q

Purpose of DNS?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

To convert domain names into IP addresses

Question 51

Q

DNS

When connecting to a website by domain, the DNS server…?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

finds IP address of domain so the client & web server can communicate via IP

Question 52

Q

Meaning of DHCP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Dynamic Host Configuration Protocol

Question 53

Q

DHCP port(s) in IPv4 network?

(This is the MAIN DHCP port(s))

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

UDP/67-68

DHCPv6 uses UDP/546-547

Question 54

Q

Common protocol for:

UDP/67-68

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

DHCP

(The main DHCP (IPv4))

Question 55

Q

What is needed to automatically assign IP addresses to devices on a network?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

DHCP server

Question 56

Q

Where is the DHCP functionality commonly buit into?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Routers & Access Points

Question 57

Q

Purpose of DHCP?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

To assign network configuration parameters to devices on a network

Network configuration paramters like IP addresses, subnet masks, gateway addresses, & DNS servers

Question 58

Q

DHCP

Meaning of SOHO?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Small Office/Home Office

Question 59

Q

Most SOHO networks have a router that uses DHCP to…

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

assign IP addresses to client computers

Question 60

Q

How do ISPs use DHCP?

Answer

A

To assign an IP address to users by assigning them to routers/modems

Question 61

Q

What system does DHCP use to assign IP addresses?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Leasing system

(Assigned IP addresses are used for a certain amount of time)

Question 62

Q

DHCP

When is the IP address unassigned to a device?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

The lease expires & the device is no longer on the network

Question 63

Q

What ports do servers & clients use in DHCPv4 servers?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

Server: 67
Client: 68

Question 64

Q

What is DHCP aka?

2.1 - Compare & contrast TCP & UDP ports, protocols, & their purposes: Ports & Protocols

Answer

A

BOOTP (Bootstrap Protocol)

Answer 55

A

Hypertext Transfer Protocol

Answer 56

A

HTTP Secure

Answer 57

A

To communicate to web servers

Answer 58

A

Secure Sockets Layer

Answer 59

A

Transport Layer Security

Answer 60

A

SMTP
POP3
IMAP4

Answer 61

A

Post Office Protocol version 3

Answer 62

A

Internet Message Access Protocol version 4

Answer 63

A

For email clients to retrieve emails from a mail server

Answer 64

A

For email clients to retrieve emails from a mail server

Answer 65

A

IMAP4 can synchronize emails to multiple email clients

i.e. the same email can be received on Gmail, Outlook, & Apple Mail

(it also supports folders)

Answer 66

A

Can only retrieve emails to 1 email client

Answer 67

A

Lets emails stay on the email server to be retrieved from any location

Answer 68

A

Server Message Block

Answer 69

A

To Provide file & printer sharing, network browsing, & IPC over a network

IPC is data exchange between programs.

Answer 70

A

Common Internet File System

Answer 71

A

UDP/137
(TCP & UDP)/139

Answer 72

A

NetBIOS over TCP/IP

Answer 73

A

Network Basic Input/Output System

Answer 74

A

Names devices
Establishes reliable connections
Facilitates data packet delivery

TCP/IP has replaced NetBIOS

Answer 75

A

using NetBT

Answer 76

A

Simple Network Management Protocol

Answer 77

A

To remotely monitor & manage network devices

Answer 78

A

Lightweight Directory Access Protocol

Answer 79

A

Microsoft Active Directory

MAD allows to query the Active Directory server using LDAP

Answer 80

A

To access & maintain distributed directories of info. services over an IP network

Answer 81

A

Remote Desktop Protocol

Answer 82

A

To give remote access to a computer’s GUI & resources as if the user was there

Answer 83

A

Remote Desktop Connection program

Answer 84

A

FTP
SMB/CIFS

Answer 85

A

File transfer protocols

Protocols that allow file transfers between devices

Answer 86

A

SSH
Telnet
RDP

Answer 87

A

Remote access protocols

Protocols that allows remote access to a device or network

Answer 88

A

Directory services protocol

Manage/organize info about network resources/users in directory database

Answer 89

A

network management protocol

Help manage & monitor the behavior & performance of a network

Answer 90

A

HTTP
HTTPS

Answer 91

A

Web protocols

allow communication & data transfers between web clients & servers

Answer 92

A

Network communication protocol

Protocols that allow communication between devices on a network