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The layers of the OSI 7-Layer model, from 1-7 are: Physical, Data Link, Network, Transport, Session, Presentation, and Application. An easy way to remember this is the mnemonic "Please Do Not Throw Sausage Pizza Away."

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An acceptable-use policy sets standards for network resource usage and limits.

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A memorandum of understanding is a semi-formal document that defines the degree of vendor support. A service-level agreement is a formal contract that defines the degree of vendor support.

A statement of work is a formal contract that defines the details of vendor support to be performed.

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Your company has just experienced a Denial of Service (DoS) attack on your Web site. You will have intermittent to no access.

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A man in the middle attack is a scenario where an attacker eavesdrops on two unsuspecting hosts that are attempting to transfer data between each other.

The entire conversation will be controlled by the attacker. War driving is where you drive around looking for Wi-Fi signals.

Bluesnarfing is intruding on a Bluetooth device and copying its data, most likely contact information and any other sensitive data.

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RJ-45 is a connector, not a type of cable.  

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All the others are types of coaxial cable connectors.

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The users who cannot connect are using older NICs without WPA2 support.  

- Some older devices do not support newer encryption standards and technologies.

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The users who cannot connect are in areas without wireless coverage.

- Changing the wireless encryption would not suddenly put former users out of wireless range.  The users who cannot connect have not specified the correct signal strength.

- Similarly, changing the wireless encryption would not suddenly put former users out of the wireless range because encryption does not change the signal strength. The users who cannot connect have not been placed in the correct VLAN.

- Encryption does not change the VLAN configuration.

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A class B license allows for up to 65,534 hosts.

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A class C license allows for up to 254 hosts, and a class A license supports up to approximately 16.7 million hosts.

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There are different threats to a SCADA network than to an IT data network. Isolating them from one another reduces the chance of malware migration.

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There is little chance that that combining data networks with SCADA networks in a well-designed network environment would cause a traffic overload to either.

Modern implementations of SCADA and ICS use TCP/IP traffic, making it compatible with any IP network. Network loggers have no trouble working with SCADA networks, data networks, or both.

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The server contains virtual machines. - When creating a virtual machine (VM), you can either use the existing NIC or create a virtual NIC with a virtual MAC address.

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NICs don't re-transmit another machine's MAC address, only their own, so hosting a Web server or proxy makes no difference.

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You have to be within the range of the access point to use a wireless LAN. IEEE 802.11 networks are designed to work in a local area of approximately 300 feet.

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Wireless networks don't use modems or CAT 5 cable, and there is no separate encryption key for remote access with wireless networks.

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Mixed mode enables 802.11a stations to connect to the 5GHz circuits of a WAP while 802.11b/g nodes connect to the 2.4GHz section.

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Multiple-antenna mode is not a valid router mode. Some routers have one antenna, some have more than one. 802.11x-ht would require multiple antennas to function.

MUMIMO is a mode available in 802.11ac WAPs, but not in 802.11a or 802.11b/g WAPs. 802.11x-ht has nothing to do with cellular-phone support in a WAP.