» Security Fundamentals

EnsurepassHere you will find answers to Security Fundamentals Question 1 Which classes does the U.S. government place classified data into? (Choose three) A. SBU B. Confidential C. Secret D. Top-secret Answer: B C D Explanation Data should be classified so that administrators can do their best to secure that data. Below is a common way to classify data that many governments, including the military, use: Unclassified: Data that has little or no confidentiality, integrity, or availability requirements Read more […]

» Wireless Fundamentals 4

EnsurepassHere you will find answers to Wireless Fundamentals – Part 4 Question 1 True or false: A wireless PAN consumes little power from small handheld computer devices. A. True B. False Answer: A Explanation An example of the Wireless PAN technology is Bluetooth. It is also known as IEEE 802.15.1, has the advantage of being very energy-efficient, which makes it particularly well-suited to use in small devices. Question 2 Which IEEE standards group uses Bluetooth as the basis Read more […]

» Wireless Fundamentals 3

EnsurepassHere you will answers to Wireless Fundamentals – Part 3 Question 1 What unit of measurement is used to represent the strength of an antenna’s radiation pattern? A. dBi B. dBm C. mW D. GHz Answer: A Explanation + dBi is a unit of sound that measures acoustical and electrical power. In particular, dBi is a measure of the increase in signal (gain) by your antenna compared to the hypothetical isotropic antenna (which uniformly distributes energy in all directions) -> Read more […]

» Wireless Fundamentals 2

EnsurepassHere you will find answers to Wireless Fundamentals – Part 2 Question 1 How are omni antennas in a wireless network most commonly polarized? A. circularly B. horizontally C. vertically D. both horizontally and vertically Answer: C Explanation Omni antennas send a signal of the same strength in all directions. Antennae in wireless networks are often vertically polarized, which makes the electric field vertical. Note: A VERTICALLY POLARIZED antenna transmits an electromagnetic Read more […]

» Wireless Fundamentals

EnsurepassHere you will find answers to Wireless Fundamentals Questions – Part 1 If you are not sure about Wireless, please read my Wireless tutorial and Basic Wireless Terminologies Question 1 What is fading? A. Another signal source is producing energy on the channel in which you are trying to operate. B. The desired signal reaches the receiving antenna via multiple paths, each of which has a different propagation delay and path loss. C. A time-varying change in the path loss of a link Read more […]

» Voice Fundamentals

EnsurepassHere you will find answers to CVoice – Voice Fundamental Questions Question 1 Which two codes together make up the number that follows the E.164 recommendation numbering scheme? (Choose two) A. country code B. subscriber code C. national destination code D. provider code Answer: A B Explanation E.164 is an international numbering plan created by the International Telecommunication Union (ITU). Each number in the E.164 numbering plan contains the following components: Country Read more […]

» Voice Fundamentals

EnsurepassHere you will find answers to CCNA Voice 640-460 Voice Fundamental Questions Question 1 Which type of voice port will allow the gateway to terminate 23 or 30 circuits from the PSTN or a PBX? A. FXO B. FXS C. PRI T1/E1 D. E&M E. BRI Answer: C Explanation The ISDN E1 PRI has 32 timeslots (channels). Each timeslot is 8 bits and has a data rate of 64,000 bits/second. Timeslot 0 is used for frame synchronization and alarms. Timeslot 16 is used for signaling so we can use 30 Read more […]

» Voice Fundamentals

EnsurepassHere you will find answer to Voice Fundamentals Questions Question 1 Which issue does CAS signaling on a T1 circuit create? A. Signaling bits are subtracted from each frame, which causes a significant loss of voice quality. B. An extra signaling bit is added to the sixth frame to carry signaling information. C. A signaling bit is subtracted from every sixth frame to carry signaling information. D. Signaling bits are added to the signaling stream to create extended super frames. Answer: Read more […]

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