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Security + > Protocols > Flashcards

Protocols Flashcards

1
Q

Full Name; Port #; purpose:

TFTP

A

Trivial File Transfer Protocol; 69; allows a client to get a file from or put a file onto a remote host, unsecured

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2
Q

Full Name, Port #; purpose:

SSH

A

Secure Shell; 22; gives users a secure way to access a computer over an unsecured network

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3
Q

Full Name; Port #; purpose:

Telnet

A

Tele Communication Network; 23; provides a command-line interface to communicate with a device; unencrypted

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4
Q

Full Name; Port #; purpose:

SMTP

A

Simple Mail Transfer Protocol; 25; 465 secured version; send out email

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5
Q

Full Name; Port #; purpose:

TACACS+

A

Terminal Access Controller Access-Control System Plus; 49, allows a client to accept a username and password and send a query to a TACACS authentication server

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6
Q

Full Name; Port #; purpose:

DNS

A

Domain Name Server/Service; 53; translates domain names into IP Addresses

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7
Q

Full Name; Port #; purpose:

HTTP

A

Hyper Text Transfer Protocol; 80; provides a standard way for web browsers and servers to talk to each other

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8
Q

Full Name; Port #; purpose:

HTTPS

A

Hyper Text Transfer Protocol+ Secure Socket Layer; 443; ensures the protection, integrity, and privacy of the data exchanged between a server and a client (usually a browser)

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9
Q

Port #; purpose:

Kerberos

A

88; provides strong authentication for client/server applications by using secret-key cryptography

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10
Q

Full Name; Port #; purpose:

POP3

A

Post Office Protocol 3; 110; 995 for secured version; receives emails;

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11
Q

Full Name; Port #; purpose:

IMAP

A

Internet Message Access Protocol; 143; 993 secured version; receives emails and leaves a copy on the server

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12
Q

Full Name; Port #; purpose:

SNMP

A

Simple Network Management Protocol; 161 for sending and receiving requests; 162 for receiving traps from managed devices.

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13
Q

Full Name; Port #; purpose:

RDP

A

Remote Desktop Protocol; 3389; used by Terminal Service client devices for client-to-server session communication

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14
Q

Full Name; description:

IPSec

A

Internet Protocol Security; Tunneling Protocol they encrypts IP

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15
Q

IPSec (Tunnel)

A

IPSec in tunnel mode encrypts entire packet

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16
Q

IPSec (Transport)

A

IPSec in transport mode only encrypts data

17
Q

Full Name; description:

PPP

A

Point to Point Protocol; Established layer 2 connection between two network devices

18
Q

Full Name; decription:

NAT

A

Network Address Translation; translates IP addresses across two different networks. Typically between a private and public IP network

19
Q

Full Name; description; uses:

PAT

A

Port Address Translation (aka NAT Overload), 1 to many NAT translation; uses layer 4 ports to organize connections

20
Q

Full Name; description; uses :

TLS

A

Transport Layer Security; Encryption protocol that replaced SSL; Commonly used by HTTPS on port 443

21
Q

Full Name:

FTPS

A

File Transfer Protocol + SSL

22
Q

Full Name:

SFTP

A

File Transfer Protocol + SSH

23
Q

Full Name; # of bits; Format:

IPv4

A

Internet Protocol version 4; 32 bits; Dotted Decimal Format

24
Q

Full Name; Port #:

IPv6

A

Internet Protocol version 6; 128 bits; Hexadecimal Format

25
Q

TCP or UDP?

SSH

A

TCP

26
Q

TCP or UDP?

Telnet

A

TCP; unsecured

27
Q

TCP or UDP?

DNS

A

Both

28
Q

Full Name; Port #; purpose:

FTP

A

File Transfer Protocol; 20 for data; 21 for control; used to copy files between two computers on the internet

29
Q

TCP or UDP?

FTP

A

TCP

30
Q

Full Name; Port #; purpose:

SCP

A

Secured Copy Protocol; 22; securely transfers computer files between a local host and a remote host or between two remote hosts

31
Q

TCP or UDP?

SCP

A

TCP

32
Q

Full Name; Port #; purpose:

DHCP

A

Dynamic Host Configuration Protocol; 67 for server; 68 for client; provides quick, automatic, and central management for the distribution of IP addresses within a network

33
Q

What are the steps involved in DHCP?

A

Discover

Offer

Request

Acknowledge

34
Q

Full Name; Port #; purpose:

LDAP

A

Lightweight Directory Access Protocol; 389; 636 for secure version; used for accessing and maintaining distributed directory information services over an IP network.

35
Q

Port #; purpose:

Netbios

A

137; 138; 139; allows applications on different computers to communicate within a LAN

36
Q

Full Name; Port #; purpose:

SMB

A

Server Message Block; 445; used for sharing access to files, printers, serial ports and other resources on a network. Replaced Netbios

37
Q

What ports are well-known ports?

A

Ports 0-1023

38
Q

What ports are known as registered ports?

A

Ports 1024-49151

39
Q

Full Name; Port #; purpose:

SIP

A

Session Initial Protocol; 5060; used for initiating, maintaining, and terminating real0time sessions that include voice, video and messaging applications.

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