802.11 Standards
What is the frequency and speed for 802.11(a)?
Frequency = 5
Speed = 54 Mbps
What is the frequency and speed for 802.11(6-ax)?
Frequency = 2.4/5/6
Speed = Even More
What are the port #'s for NetBIOS?
137-139
137 > Resolving NetBIOS names to IP addresses
138 > Used for connectionless communications- browsing/ broadcasting
139 > Establish sessions for file and printer sharing
For this Time Server, what is the port # for Network Time Protocol (NTP)?
123
Sends requests and receives responses in time synchronization
What is the IP address port # for Dynamic Host Configuration Protocol (DHCP)?
67/68
67 > DHCP server listens for and receives client requests
68 > DHCP client receives messages from the server
What is the frequency and speed for 802.11(b)?
Frequency = 2.4
Speed = 11 Mbps
What is the frequency and speed for 802.11 (7-be)?
Frequency = 2.4/5/6
Speed = A Whole Lot
What is the port # for Lightweight Directory Access Protocol (LDAP)?
389
Default port for unencrypted communications
What are the file transfer port #'s for FTP?
20 & 21
20 > Active data transfer
21 > Sending commands/ receiving responses
How much can 5 Gbps support up to?
10 Gbps
What is the frequency and speed for 802.11(g)?
Frequency = 2.4
Speed = 54 Mbps
What is the email port # for Internet Message Access Protocol (IMAP)?
143
Used to receive emails
What is the web port # for Hypertext Transfer Protocol Secure (HTTPS) and (HTTP)?
443 and 80
443 > Encrypted communication over the internet utilizing SSL/ TLS to secure data in transit bt/wn a web browser and a server
80 > Unencrypted web traffic
What is the remote terminal access server port # for Secure Shell Protocol (SSH)?
22
Used to establish secure, encrypted connections for remote access, command execution and file transfers
When is a Virtual Private Network (VPN) used?
What is the frequency and speed for 802.11(4-n)?
Frequency = 2.4/5
Speed = 300/600 Mbps
What is the email port # for Simple Mail Transfer Protocol (SMTP)?
25
Standard TCP/IP application for sending, relaying, & traansferring email bt/wn mail servers.
What is the file transfer port # for Server Message Block (SMB)?
445
Used for direct TCP/IP communication for file sharing in Windows and other systems
What is the remote terminal access server port # for Telnet?
23
Establishing remote, text based unencrypted command- line sessions with servers and network devices
What does the Canonical Name (CNAME) do?
It points one domain to another.
What is the frequency and speed for 802.11(5-ac)?
Frequency = 5
Speed = Alot
What is the email port # for Post Office Protocol (POP3)?
110
Used to retrieve email, usually by downloading messages to a single device and removing it from the server
What is the Remote terminal access server port # fornRemote Desktop Protocol (RDP)?
3389
It enables remote connections to windows devices
What is the IP address port # for Domain Name Sysyem (DNS)?
53
Used for UDP and TCP communication.
UDP is default for standard queries
TCP used for zone transfers and messages larger than 512 bytes
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