OSI Model
Network Potpouri
IP
Wireless
More Potpourri
100

This layer of OSI handles file transfer, virtual terminals, network management, and fulfilling networking requests of software and systems. Some examples: FTP, SNMP, SMTP, HTTP.

What is the Application Layer? (Layer 7)

100

The TCP Service which by default communicates over port 25.

What is SMTP?

100

The number of bits used in an IP v4 address.

What is 32?

100

This is the IEE standard for wireless network communications and includes multiple sub-standards to address multiple speeds and frequencies.

What is 802.11?

100

The most popular local area network technology, it used shared physical media with collision detection and avoidance.

What is ethernet?

200

At this level of OSI, network interface cards and drivers convert bits into electrical signals and control actual the transmission of data, including optical, electrical, and mechanical requirements.

What is the physical layer? (Layer 1)

200

A network tool can be used to protect the identity of clients while providing Internet access by accepting client requests, altering the source addresses of the requests, mapping requests to clients, and sending the modified requests out to their destination.

What is a proxy?

200

This "class" of IPv4 address contains the decimal numbers 192-223 in its first octet.

What is a class "C" IP address?

200
This is used to identify a wireless network and to differentiate one wireless network from another. Wireless access points often broadcast this information so that clients can connect.

What is the Service Set Identifier or SSID?

200

_____ uses a three-way handshake to establish a reliable connection. The connection is full duplex, and both sides synchronize and acknowledge each other.

What is TCP?

300

This layer of OSI handles end-to-end transmission and segmentation of a data stream. Think TCP and UDP.

What is the Transport layer? (Layer 4)

300

An exploitation where an attacker changes the domain name to IP address mappings of a system to redirect traffic to alternate systems.

What is DNS poisoning?

300

This protocol is used to determine the network health of a path or a specific node. You can use it to determine if a remote system is online, responding promptly and determine the performance of the network in between.

What is ICMP or "ping"?

300

The initial and most simple security protocol established for the 802.11 wireless standard, it was designed to provide basic cryptographic encryption of wireless transmissions using an RC4 key.

What is Wired Equivalent Privacy or WEP?

300

This topology connects network nodes in a string--each node inspects the data as it passes along.

What is a bus?

400

This layer of OSI set up connections between applications; maintains dialog control; and negotiates, establishes, maintains, and tears down the communication channel. Examples: NetBIOS, PPTP, RPC

What is the Session layer? (Layer 5)


400

A scalable wide area network solution which makes use of packet-mode transmission and requires a DTE/DCE at each connection point.

What is Frame Relay?

400

This protocol is essential to the interoperability of logical and physical address schemes and it is used to response IP addresses into Media Access Control (MAC) addresses.

What is the Address Resolution Protocol (ARP)

400

An updated security protocol to address insecurities of WEP, this protocol allows LEAP and TKIP encryption.

What is Wi-fi protected access or WPA?

400

This is described by IEEE standard 802.15 and it is a Personal Area Network wireless technology. Hint: It's NOT the name of a pirate!

What is bluetooth?

500

This layer of OSI handles translation into standard formats, data compression/decompression, and data encryption/decryption. Examples: ASCII, JPEG, PNG, MPEG

What is the Presentation Layer. (Layer 6)

500

Wireless network mode which can be used to directly connect two clients.

What is Ad Hoc mode?

500

Typically operating on UDP port 161 and 162, this network service is used to collect health and status information by monitoring network devices and servers from a central monitoring station.

What is the Simple Network Management Protocol or SNMP?

500

A wireless attack in which a hacker operates a false access point that will automatically close the identify of an access point based on a client device's request to connect.

What is evil twin?

500

This protocol was created to replace WEP and TKIP/WPA and uses AES with a 128-bit key.

What is CCMP or "Counter Mode with Cipher Block Chaining Message Authentication Code Protocol"?

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