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N+ > Protocols > Flashcards

Protocols Flashcards

1
Q

What is Media Gateway Control Protocol?

A

Call control and communication protocol for VOIP

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2
Q

What is ICMP (Internet Control Message Protocol)?

A

A network layer protocol used by network devices to diagnose network communication issues. ICMP is mainly used to determine whether or not data is reaching its intended destination in a timely manner.
ping
tracert

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3
Q

What is H.323/H.264?

A

L5 Protocol
Used to set up, maintain, and tear down voice and video connections.

Port 1720

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4
Q

Explain Secure Shell (SSH)

A

Provides secure remote control of another machine using a text-based Environment

Port 22

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5
Q

Explain Secure FTP (SFTP)

A

Provides secure file transfer via SSH

Port 22

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6
Q

Explain Telnet

A

Provides unsecure remote control of another machine using a text-based Environment

Port 23

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7
Q

Explain Simple Mail Transfer Protocol (SMTP)

A

Provides the ability to send emails over the network.

Port 25

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8
Q

Explain Trivial File Transfer Protocol (TFTP)

A

Used as a lightweight file transfer method for sending configuration files or network booting of an OS.

Port 69

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9
Q

Explain Post Office Protocol Version Three (POP3).

A

Used for receiving incoming email.

Port 110

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10
Q

Explain Network Time Protocol (NTP).

A

Used to keep accurate time for clients on a network.

Por 123

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11
Q

Explain Network Basic Input/Output System (NetBIOS).

A

Used for file or printer sharing in a Windows network.

Port 139, 137, 138

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12
Q

Explain Internet Mail Application Protocol (IMAP)

A

A newer method of retrieving incoming emails which improves upon the older POP3.

Port 143

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13
Q

Explain Simple Network Management Protocol (SNMP)

A

Used to collect data about network devices.

Port 161, 162

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14
Q

Explain Lightweight Directory Access Protocol (LDAP)

A

Used to provide directory services to your network.

Port 389

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15
Q

Explain Hypertext Transfer Protocol - Secure (HTTPS)

A

Provides secure web browsing via TLS/SSL

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16
Q

Explain Server Message Block (SMB)

A

Used for Windows file and printer sharing services

Port 445

17
Q

Explain System Logging Protocol (Syslog) use?

A

Used to send logging data back to a centralized server.

18
Q

Explain Simple Mail Transfer Protocol Transport Layer Security (SMTP TLS)

A

Secure and encrypted way to send emails

19
Q

Explain Lightweight Directory Access Protocol - Secure (LDAPS)

A

Provides Secure Directory Services

Port 636

20
Q

Explain Internet Message Access Protocol over SSL (IMAP over SSL)

A

Secure and encrypted was to receive email

21
Q

Explain Post Office Protocol Version 3 over SSL (POP3 over SSL)

A

Secure and encrypted way to receive email

22
Q

Explain Structured Query Language Server Protocol (SQL)

A

Used for communication from a client to the database engine
MS

23
Q

Explain SQLnet Protocol

A

Used for communication from a client to an Oracle database

24
Q

Explain MySQL

A

Used for communication from a client to the MySQL database engine

25
Q

Explain Remote Desktop Protocol (RDP)

A

Provide graphical remote control over another client or server (MS proprietary)

Port 3389

26
Q

Explain Session Initiation Protocol (SIP)

A

Used to initiate VoIP and video calls

Port 5060, 5061

27
Q

What is Real-time Transport Protocol?

A

L5 Protocol
Used to set up, maintain, and tear down voice and video connections.

delivering media-based data (such as VoIP) through the network

Port 5004, 5005

28
Q

What is Real-Time Streaming Protocol (RTSP)?

A

Communicates with a media server and controls the playback of the server’s media files.

Port 554

29
Q

NTP Stratum

A

Stratum 0 devices (including atomic and gps clocks) are the most accurate, but cannot be connected to via a network connection. A Stratum 0 device is usually used as a reference clock (or synchronisation source) for a Stratum 1 time server.

Stratum 1 devices are the most accurate ntp time sources accessible via a network connection. A Stratum 1 device would normally be synchronised via a Stratum 0 reference clock.

Stratum 2 devices are synchronised from a Stratum 1 device across a network connection. Due to network jitter and delays, Stratum 2 servers are not as accurate as Stratum 1 time servers. An NTP client synchronised from a Stratum 2 source would be a Stratum 3 device etc…

30
Q

Extensible Authentication Protocol (EAP)

A

Allows for numerous different mechanisms of authentication.

31
Q

Lightweight Directory Access Protocol (LDAP)

A

Validates a username and password combination against an LDAP server as a form of authentication.

32
Q

Point-to-Point Protocol (PPP)

A

-Commonly used Layer 2 protocol on dedicated lease lines to transmit multiple Layer 3 protocols (IP, IPX)
-directly connects two network devices at the data link layer
-WAN

33
Q

Password Authentication Protocol (PAP)

A

Performs one-way authentication between client and server

Sent in the clear

34
Q

Session Initiation Protocol (SIP)

A

Used to setup, maintain, and tear down calls

35
Q

Internet Group Management Protocol (IGMP)

A

*Lets routers know which interfaces have multicast receivers
*Allows clients to join a multicast group

36
Q

Challenge Handshake Authentication Protocol (CHAP)

A

-Sends client a string of random text “challenge” which is then encrypted using a password and sent back to the server
-Performs one-way authentication using a three-way handshake.
-Hashed credentials

37
Q

Extensible Authentication Protocol (EAP)

A

-Allows for more secure authentication methods to be used instead of just a username and a password
-Acts as a framework and transport for other authentication protocols

38
Q

Gateway Load Balancing Protocol (GLBP)

A

Cisco’s proprietary first-hop redundancy which focuses on load balancing over redundancy

39
Q

LACP
Link Aggregation Control Protocol (LACP)

A

-IEEE 802.3ad
-Achieves redundancy
-Multiple links between network devices
-Load balancing over multiple links
-Combines multiple connections (links) into a single logical connection to load balance

N+ (22 decks)

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