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EC-COUNCIL Certification
312-38 Exam
EC-COUNCIL.312-38.v2022-01-25.q147 Dumps

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Question 1

Which of the following types of coaxial cable is used for cable TV and cable modems?

A.RG-62
B.RG-59
C.RG-58
D.RG-8

Correct Answer: B

RG-59 type of coaxial cable is used for cable TV and cable modems.
Answer option D is incorrect. RG-8 coaxial cable is primarily used as a backbone in an Ethernet LAN
environment and often connects one wiring closet to another. It is also known as 10Base5 or ThickNet.
Answer option A is incorrect. RG-62 coaxial cable is used for ARCNET and automotive radio antennas.
Answer option C is incorrect. RG-58 coaxial cable is used for Ethernet networks. It uses baseband signaling
and 50-Ohm terminator. It is also known as 10Base2 or ThinNet.

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Question 2

Timothy works as a network administrator in a multinational organization. He decides to implement a dedicated network for sharing storage resources. He uses a_______as it seperates the storage units from the servers and the user network.

A.NAS
B.SAN
C.SCSA
D.SAS

Correct Answer: B

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Question 3

Which of the following phases is the first step towards creating a business continuity plan?

A.Plan Approval and Implementation
B.Scope and Plan Initiation
C.Business Continuity Plan Development
D.Business Impact Assessment

Correct Answer: B

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Question 4

Which of the following are provided by digital signatures?

A.Identification and validation
B.Authentication and identification
C.Integrity and validation
D.Security and integrity

Correct Answer: B

Explanation/Reference:

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Question 5

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

Correct Answer: C

The 802.11e standard is a proposed enhancement to the 802.11a and 802.11b wireless LAN (WLAN)
specifications. It offers quality of service (QoS) features, including the prioritization of data, voice, and video
transmissions. 802.11e enhances the 802.11 Media Access Control layer (MAC layer) with a coordinated time
division multiple access (TDMA) construct, and adds error-correcting mechanisms for delay-sensitive
applications such as voice and video. Answer option D is incorrect. 802.11h refers to the amendment added to
the IEEE 802.11 standard for Spectrum and Transmit Power Management Extensions.
Answer option B is incorrect. 802.11n is an amendment to the IEEE 802.11-2007 wireless networking standard
to improve network throughput over the two previous standards - 802.11a and 802.11g - with a significant
increase in the maximum raw data rate from 54 Mbit/s to 600 Mbit/s with the use of four spatial streams at a
channel width of 40 MHz. Answer option A is incorrect. IEEE 802.15 is a working group of the IEEE 802 and
specializes in Wireless PAN (Personal Area Network) standards. It includes seven task groups, which are as
follows:
1.Task group 1 (WPAN/Bluetooth)
2.Task group 2 (Coexistence)
3.Task group 3 (High Rate WPAN)
4.Task group 4 (Low Rate WPAN)
5.Task group 5 (Mesh Networking)
6.Task Group 6 (BAN)
7.Task group 7 (VLC)

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