Networking Fundamentals
What does IP stand for?
Internet Protocol
How many layers are in the OSI model?
7
What port does HTTPS use?
443
What frequency bands do Wi-Fi networks operate on?
2.4 GHz and 5 GHz
What does VPN stand for?
Virtual Private Network
What is the purpose of a subnet mask?
To differentiate network and host portions of an IP address
What layer of the OSI model does a router operate on?
Network
What protocol is used for file transfers over the internet?
FTP
What is the maximum speed of 802.11ac?
1 Gbps
What is the purpose of a firewall?
To block unauthorized access
What is an example of a Class A private IP address?
10.0.0.1
What protocol operates at the Transport layer of the OSI model?
TCP/UDP
What port does DNS use?
53
Which wireless encryption standard is the most secure?
WPA3
What is an IDS?
Intrusion Detection System
What command is used to check connectivity between two devices?
ping
Which OSI layer is responsible for encryption and decryption?
Presentation
What is the function of DHCP?
Assigns IP addresses dynamically
What does SSID stand for?
Service Set Identifier
What type of attack is a DDoS?
Distributed Denial of Service
What is the purpose of a MAC address?
Uniquely identify a device on a network
What is the main function of the Data Link layer?
Handles MAC addresses and switches
What protocol is used for securely accessing remote devices?
SSH
What is the function of a wireless access point?
Extends network connectivity wirelessly
What is social engineering?
Manipulating people into revealing sensitive info