Frank is a network technician working for a medium-sized law firm in Memphis. Frank and two other IT employees take care of all the technical needs for the firm. The firm's partners have asked that a secure wireless network be implemented in the office so employees can move about freely without being tied to a network cable. While Frank and his colleagues are familiar with wired Ethernet technologies, 802.3, they are not familiar with how to setup wireless in a business environment. What IEEE standard should Frank and the other IT employees follow to become familiar with wireless?

• A.They should follow the 802.11 standard
• B.Frank and the other IT employees should follow the 802.1 standard.
• C.802.7 covers wireless standards and should be followed
• D.The IEEE standard covering wireless is 802.9 and they should follow this.

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Which of the following is a device that receives a digital signal on an electromagnetic or optical transmission medium and regenerates the signal along the next leg of the medium?

• A.Gateway
• B.Repeater
• C.Network adapter
• D.Transceiver

Correct Answer: B

A repeater is an electronic device that receives a signal and retransmits it at a higher level and/or higher power, or onto the other side of an obstruction, so that the signal can cover longer distances. A repeater is a device that receives a digital signal on an electromagnetic or optical transmission medium and regenerates the signal along the next leg of the medium. In electromagnetic media, repeaters overcome the attenuation caused by free-space electromagnetic-field divergence or cable loss. A series of repeaters make possible the extension of a signal over a distance. Repeaters remove the unwanted noise in an incoming signal. Unlike an analog signal, the original digital signal, even if weak or distorted, can be clearly perceived and restored. With analog transmission, signals are restrengthened with amplifiers which unfortunately also amplify noise as well as information. An example of a wireless repeater is shown in the figure below:

Answer option D is incorrect. A transceiver is a device that has both a transmitter and a receiver in a single package.
Answer option A is incorrect. A gateway is a network interconnectivity device that translates different communication protocols and is used to connect dissimilar network technologies. It provides greater functionality than a router or bridge because a gateway functions both as a translator and a router. Gateways are slower than bridges and routers. A gateway is an application layer device.
Answer option C is incorrect. A network adapter is used to interface a computer to a network. "Device driver" is a piece of software through which Windows and other operating systems support both wired and wireless network adapters. Network drivers allow application software to communicate with the adapter hardware.
Network device drivers are often installed automatically when adapter hardware is first powered on.

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Which of the following recovery plans includes specific strategies and actions to deal with specific variances to assumptions resulting in a particular security problem, emergency, or state of affairs?

• A.Contingency plan
• B.Disaster recovery plan
• C.Business continuity plan
• D.Continuity of Operations Plan

Correct Answer: A

A contingency plan is a plan devised for a specific situation when things could go wrong. Contingency plans are often devised by governments or businesses who want to be prepared for anything that could happen.
Contingency plans include specific strategies and actions to deal with specific variances to assumptions resulting in a particular problem, emergency, or state of affairs. They also include a monitoring process and
"triggers" for initiating planned actions. They are required to help governments, businesses, or individuals to recover from serious incidents in the minimum time with minimum cost and disruption.
Answer option D is incorrect. It includes the plans and procedures documented that ensure the continuity of critical operations during any period where normal operations are impossible.
Answer option B is incorrect. Disaster recovery planning is a subset of a larger process known as business continuity planning and should include planning for resumption of applications, data, hardware, communications (such as networking), and other IT infrastructure. A business continuity plan (BCP) includes planning for non-IT related aspects such as key personnel, facilities, crisis communication, and reputation protection, and should refer to the disaster recovery plan (DRP) for IT-related infrastructure recovery/continuity.
Answer option C is incorrect. Business continuity planning (BCP) is the creation and validation of a practiced logistical plan for how an organization will recover and restore partially or completely interrupted critical (urgent) functions within a predetermined time after a disaster or extended disruption. The logistical plan is called a business continuity plan. The BCP lifecycle is as follows:

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Which of the following standards is a proposed enhancement to the 802.11a and 802.11b wireless LAN (WLAN) specifications that offers quality of service (QoS) features, including the prioritization of data, voice, and video transmissions?

• A.802.15
• B.802.11n
• C.802.11e
• D.802.11h

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Which of the following router configuration modes to change the terminal settings temporarily, perform basic tests, and lists the system information?

• A.Global Config
• B.UI Config
• C.user EXEC
• D.None
• E.the privileged EXEC

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