Network Protocols

What is the function of FTP?

File transfer

What does FTP stand for?

File Transfer Protocol

What is SSH primarily used for?

Secure remote access

What does SSH stand for?

Secure Shell

Name three functions of SSH

Remote login. Remote command execution. Secure network services

What is Telnet used for?

Remote login. Command execution

Does Telnet encrypt data?

No

Does Telnet provide authentication?

Yes

How is data transmitted by Telnet?

Unencrypted

Which protocol is the secure replacement for Telnet?

SSH

Which protocol securely encrypts remote connections?

SSH

What does SMTP stand for?

Simple Mail Transfer Protocol

What is SMTP used for?

Send email

What are the two functions of SMTP?

Client email sending. Mail server email transfer

Does SMTP retrieve emails?

No

What does POP3 stand for?

Post Office Protocol 3

What is POP3 used for?

Email retrieval

What happens to emails in POP3?

Downloaded locally

What does IMAP stand for?

Internet Message Access Protocol

What is IMAP used for?

Email retrieval. Email sync

How is IMAP better than POP3?

More features. Server sync

Where does IMAP keep emails?

On the server

What does DNS stand for?

Domain Name System

What is the function of DNS?

Domain to IP translation

What else does DNS store?

Domain records

What does DHCP stand for?

Dynamic Host Configuration Protocol

What is DHCP used for?

Automatic IP assignment

What four settings can DHCP provide?

IP address. Subnet mask. Default gateway. DNS server

What does HTTP stand for?

Hypertext Transfer Protocol

What is HTTP used for?

Retrieve web pages

What does HTTPS stand for?

HTTP Secure

What is HTTPS?

Secure HTTP

What encryption does HTTPS use?

SSL/TLS

What three security services does HTTPS provide?

Confidentiality. Integrity. Authentication

What is NetBIOS?

LAN communication API

Where is NetBIOS commonly used?

Windows networks

What is NetBT?

NetBIOS over TCP/IP

What is the function of NetBT?

Runs NetBIOS over TCP/IP

What does LDAP stand for?

Lightweight Directory Access Protocol

What is LDAP used for?

Directory access

What information does LDAP manage?

User accounts. Directory data

What does SMB stand for?

Server Message Block

What is SMB used for?

File sharing. Printer sharing

Which operating system commonly uses SMB?

Microsoft Windows

What are two characteristics of SMB/CIFS?

Windows-focused. Shared access to files and devices

What does RDP stand for?

Remote Desktop Protocol

What is RDP used for?

Remote graphical access

Who developed RDP?

Microsoft

Is UDP connection-oriented or connectionless?

Connectionless

Does UDP use a three-way handshake?

No

Does UDP guarantee delivery?

No

Name three common uses of UDP

Streaming. Gaming. Voice/video calls

Is UDP reliable?

No

What does TCP stand for?

Transmission Control Protocol

Is TCP connection-oriented or connectionless?

Connection-oriented

Does TCP use a three-way handshake?

Yes

Does TCP guarantee delivery?

Yes

Name four reliability features of TCP

Error checking. Flow control. Sequencing. Retransmission

Name three common uses of TCP

Web browsing. Email. File transfer

Which protocol is faster but less reliable?

UDP

Which protocol is slower but more reliable?

TCP