The OSI model and protocols
This layer is responsible for routing packets across different networks using logical addressing like IP.
What is the Network Layer (Layer 3)?
The standard 8-pin connector used for most twisted-pair
Ethernet cables.
What is RJ-45?
This IP address, 127.0.0.1, is used by a host to test its own network stack.
What is the Loopback address?
This 802.11 standard operates in both the 2.4 GHz and 5 GHz bands and introduced MIMO.
What is 802.11n (Wi-Fi 4)?
This security device inspects incoming and outgoing traffic to block unauthorized access based on a set of rules.
What is a Firewall?
This protocol operates on Port 443 and provides encrypted communication for web traffic.
What is HTTPS
This cable type is required in air-handling spaces because it does not give off toxic fumes when burned.
What is Plenum-rated cable?
If a device cannot reach a DHCP server, it may self-assign an address in the 169.254.0.0/16 range, known as this.
What is APIPA?
This is the name given to the unique ID or "name" of a wireless network.
What is the SSID?
This type of attack floods a network with traffic from multiple sources to make a service unavailable.
What is a DDoS (Distributed Denial of Service)?
Unlike TCP, this transport layer protocol is connectionless and does not guarantee delivery.
What is UDP?
This fiber optic connector features a bayonet-style twist-on mechanism.
What is an ST (Straight Tip) connector?
This is the total number of bits in a single IPv6 address.
What is 128 bits?
This technology allows a wireless access point to use multiple antennas to transmit and receive data simultaneously.
What is MIMO?
This authentication protocol is commonly used for centralized
"AAA" (Authentication, Authorization, and Accounting).
What is RADIUS?
This is the Protocol Data Unit (PDU) found at Layer 2 of the
OSI model.
What is a Frame?
This specific copper cable category can support 10 Gbps speeds up to 100 meters.
What is Cat 6a?
This subnet mask corresponds to a CIDR notation of /26.
What is 255.255.255.192?
This latest WPA standard introduced individualized data encryption and the DragonFly Key Exchange.
What is WPA3?
This social engineering tactic involves tricking a user into providing sensitive information via a fake email or website.
What is Phishing?
This protocol uses Port 143 to allow users to view and manipulate messages on a mail server without downloading them.
What is IMAP?
This type of interference occurs when electrical signals from one wire pair leak into an adjacent pair.
What is Crosstalk?
This is the decimal value of an 8-bit octet where all bits are set to l.
What is 255?
This is a wireless site survey performed without visiting the physical site, using blueprints and software instead.
What is a Predictive Analysis?
This security feature on a switch prevents unauthorized DHCP servers from handing out IP addresses.
What is DHCP Snooping?