When you set up a WLAN or access an existing WLAN, always enable security features to protect your network from unauthorized access. The common security levels are Wi-Fi Protected Access (WPA) and Wired Equivalent Privacy (WEP). Because wireless radio signals travel outside the network, other WLAN devices can pick up unprotected signals and either connect to your network (uninvited) or capture information being sent across it. However, you can take precautions to protect your WLAN:

●Use a wireless transmitter with built-in security

Many wireless base stations, gateways, and routers provide built-in security features such as wireless security protocols and firewalls. With the correct wireless transmitter, you can protect your network from the most common wireless security risks.

●Work behind a firewall

A firewall is a barrier that checks both data and requests for data that are sent to your network and then discards any suspicious items. Firewalls are available in many varieties, both software and hardware. Some networks use a combination of both types.

●Use wireless encryption

A variety of sophisticated encryption protocols is available for your WLAN. Find the solution that works best for your network security:

◦Wired Equivalent Privacy (WEP) is a wireless security protocol that uses a WEP key to encode or encrypt all network data before it is transmitted. Usually, you can allow the network to assign the WEP key. Alternatively, you can set up your own key, generate a different key, or choose other advanced options. Without the correct key, others will not be able to use the WLAN.

◦WPA (Wi-Fi Protected Access), like WEP, uses security settings to encrypt and decrypt data that is transmitted over the network. However, instead of using one static security key for encryptions as WEP does, WPA uses temporal key integrity protocol (TKIP) to dynamically generate a new key for every packet. It also generates different sets of keys for each computer on the network.

●Close your network

If possible, prevent your network name (SSID) from being broadcast by the wireless transmitter. Most networks initially broadcast the name, telling any computer nearby that your network is available. By closing the network, other computers are less likely to know that your network exists.

NOTE: If your network is closed and the SSID is not broadcast, you will need to know or remember the SSID to connect new devices to the network. Write down the SSID and store it in a secure place before closing the network.

24 Chapter 3 Networking

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HP 2740P manual Use a wireless transmitter with built-in security, Work behind a firewall, Use wireless encryption
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2740P specifications

The HP 2740P is a versatile and robust convertible tablet PC that was designed for professionals seeking flexibility and high performance. Launched as part of HP's Elite series, this model is known for its business-oriented features and solid build quality.

One of the standout features of the HP 2740P is its 12.1-inch display, which boasts a resolution of 1280 x 800 pixels. This screen supports multi-touch functionality, allowing users to navigate and interact through gestures. The display is also built with an integrated capacitive digitizer, supporting the use of an optional stylus for more precise input, which is particularly useful for note-taking and graphic work.

Powered by Intel’s Core i5 and i7 processors from the first generation, the HP 2740P handles multitasking efficiently. It supports up to 8 GB of RAM, ensuring that demanding applications run smoothly. The device comes with various storage options, including solid state drives (SSD) or traditional hard drives (HDD), giving users flexibility and speed according to their needs.

Connectivity is one of the strong points of the HP 2740P. It includes multiple USB 2.0 ports, an ExpressCard slot, an SD card reader, and VGA and DisplayPort outputs, facilitating easy connection to various peripherals and external displays. Additionally, the device is equipped with Wi-Fi and optional mobile broadband capability, allowing users to stay connected on the go.

Security features are also robust, including a fingerprint reader and a Smart Card reader, which helps in safeguarding sensitive data. The device’s build quality is noteworthy, featuring a durable casing that meets military specifications for ruggedness, making it a reliable choice for professionals in challenging environments.

The HP 2740P operates with Windows 7 Professional but can also be upgraded to later versions, enhancing usability in today’s tech landscape. This tablet PC strikes an excellent balance between portability and capability, making it ideal for business users, educators, and creative professionals.

In summary, the HP 2740P is a well-equipped convertible tablet that encapsulates the blend of functionality and adaptability. Its combination of performance, security features, and connectivity options positions it as a formidable tool for those looking to enhance productivity in a compact form factor.
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