A button cell b lead acid c nimh d nicd answer abd

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A. Button cell B. Lead-acid C. NiMH D. NiCd Answer: A,B,D Explanation: The following types of batteries are considered as environmental hazards: Nickel cadmium (NiCd) Lead-acid Button cell Nickel cadmium (NiCd) batteries contain nickel and cadmium. Cadmium is highly toxic. Lead-acid batteries contain lead that is considered as environmental hazard. Button cell batteries contain mercury that is considered as environmental hazard. Answer option C is incorrect. Nickel metal hydride (NiMH) batteries are not considered as environmental hazards. Reference: "(electricity)" Question No : 240 - (Topic 3) CompTIA FC0-U51 : Practice Test 92
What is the display resolution of the WUXGA standard? A. 1024 x 768 pixels B. 1280 x 1024 pixels C. 1920 x 1200 pixels D. 1600 x 1200 pixels Answer: C Explanation: WUXGA stands for Widescreen Ultra eXtended Graphics Array. It is a display standard that refers to video adapters. This display standard is capable of displaying a resolution of 1920 x 1200 pixels with a 16:10 screen aspect ratio. WUXGA resolution is currently available in high-end LCD televisions and computer monitors. Answer option A is incorrect. XGA stands for eXtended Graphics Array. It is a display standard that refers to video adapters. IBM introduced this display standard in 1990. It is capable of displaying the resolution of 1024 x 768 pixels. Answer option D is incorrect. UXGA stands for Ultra eXtended Graphics Array. It is a display standard that refers to video adapters. This display standard is capable of displaying the resolution of 1600 x 1200 pixels. A UXGA display provides four times more pixels than an 800 x 600 display. Answer option B is incorrect. SXGA stands for Super eXtended Graphics Array. It is a display standard that refers to video adapters. This standard is an enhancement of the standard XGA resolution developed by IBM. It is capable of displaying the resolution of 1280 x 1024 pixels. Reference: "" Which of the following firewalls inspects the actual contents of packets? A. Packet filtering firewall B. Application-level firewall C. Circuit-level firewall D. Stateful inspection firewall Answer: B Explanation: Question No : 241 - (Topic 3) Question No : 242 - (Topic 3) CompTIA FC0-U51 : Practice Test 93
The application level firewall inspects the contents of packets, rather than the source/destination or connection between the two. An Application level firewall operates at the application layer of the OSI model. Answer option C is incorrect. The circuit-level firewall regulates traffic based on whether or not a trusted connection has been established. It operates at the session layer of the OSI model. Answer option A is incorrect. The packet filtering firewall filters traffic based on the headers. It operates at the network layer of the OSI model. Answer option D is incorrect. The stateful inspection firewall assures the connection between the two parties is valid and inspects packets from this connection to assure the packets are not malicious.

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