B.3.2 Networking Flashcards
SNMP
Simple Network Management Protocol
POP3
Send it to the recipient and deletes it off the server
IMAP
Keeps a copy on the server so it can be accessed across devices
Port 143
IMAP
Port 110
POP3
Connects network segments
Ethernet Router
Connects devices on a network
Ethernet switch
What causes wireless interference
Cordless phones, microwaves, and backup generators
What does a network switch do?
It connects multiple cable segments or hosts and forwards data packets to the appropriate host
How do switches learn where devices are on a network?
Copies the source MAC address from a packet
Frequency and bandwidth: 802.11a
5GHZ at 54Mbps
Frequency and bandwidth: 802.11b
2.4GHZ at 11Mbps
Frequency and bandwidth: 802.11g
2.4GHZ at 54Mbps
Frequency and bandwidth: 802.11n
5GHZ and 2.4GHZ at 600Mbps
Frequency and bandwidth: 802.11ac
5GHZ at 3.46Gbps
Frequency and bandwidth: 802.11ax
5GHZ and 2.4GHZ at 14Gbps
When connecting 2 buildings together with a wireless transmitter there are a lot of connection drops. How would you fix this problem?
Increase power to the access point.
WEB server platform, one for Windows and one for Linux
IIS - Windows
Apache - Linux
Which load balancer algorithms takes each server’s active connections and processing power into consideration?
Weighted least connections
You would like to control internet access based on user, time of day, and websites visited.
Install a proxy server. Allow internet access only through the proxy server.
Functions of a proxy server
Blocks websites
Cache web pages
As a network administrator for your company, you want to set up a network device that manages internal traffic between servers and clients.
Reverse proxy server
As a network administrator for your company, you want to set up a network device that manages traffic leaving and entering your network from the outside.
Forward proxy server
Which algorithm is used by an Application layer load balancer?
Least pending request
