Ofdm - Study guides, Class notes & Summaries
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Progression: Maintenance Tech I - II Conventional: Exam Review Answered.
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Progression: Maintenance Tech I - II Conventional: Exam 
 
In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? 
 
 
What is a common solution when congestion from modem activity and traffic becomes unacceptable in a hybrid fiber/coax (HFC) network? 
 
What technologies are defined in DOCSIS 4.0 to help sustain the hybrid fiber/coax (HFC) network infrastructure for several more years? 
 
How can a less-experienced technician identi...
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CWNP Prep Test 1 Questions & Answers 100% CORRECT 2024/2025
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CWNP Prep Test 1 Questions & Answers 100% CORRECT 2024/2025 
 
 
802.11a & 802.11g - ANSWERSWi-Fi equipment complying with _______ is not compatible with equipment complying with _______. 
 
*PoE switches allow administrators to power cycle an AP from a remote location 
*PoE switches eliminate the need for AC power at each AP location - ANSWERSAs a sales person for ABC company, which sells APs and PoE switches, you are encouraged to recommend infrastructure upgrades to customers who wish to purc...
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DCOM 251 8-14 Practice Exam Questions With 100% Correct Answers 2024.
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DCOM 251 8-14 Practice Exam Questions With 100% Correct Answers 2024. 
Which of the following is not a WLAN security standard? - correct answer WAP 
 
WLAN security based on a PSK technology is called ________ mode. - correct answer personal 
 
The strength of the electromagnetic waves being radiated from an antenna is referred to as gain, which involves a measurement of both direction and efficiency of a transmission. Gain is commonly measured using the dBi unit of measure. - correct answer tr...
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NCTI ROC II BOOK II FINAL Test 1.
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NCTI ROC II BOOK II FINAL Test 1. 
 
When pressure testing a drop system to check for leakage, What must be done before applying the test signal? 
The technician must isolate the drop system from the hybrid fiber/coax (HFC) network by disconnecting the drop at the distribution tap. 
Why do some leakage detection systems utilize a leakage carrier modulated with a tagging signal? 
To avoid false detection of leaks. 
When all three sections of a pulse code modulator (PCM) are combined, what functio...
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HSD Customer Service Test
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HSD Customer Service Test 
 
The first version of the Data Over Cable Service Interface Specification (DOCSIS) was approved 
as an international standard by what organization? - The International Telecommunication 
Union (ITU). 
 
What criteria does the Data Over Cable Service Interface Specification (DOCSIS) certification 
process ensure? - Compliance with the DOCSIS standard and interoperability between 
suppliers. 
 
What layers of the Open Systems Interconnection (OSI) reference model are ap...
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dcom 251 8-14 final exam questions with verified solutions 2023/2024
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dcom 251 8-14 final exam 
Which of the following is not a WLAN security standard? - correct answer WAP 
 
WLAN security based on a PSK technology is called ________ mode. - correct answer personal 
 
The strength of the electromagnetic waves being radiated from an antenna is referred to as gain, which involves a measurement of both direction and efficiency of a transmission. Gain is commonly measured using the dBi unit of measure. - correct answer true 
 
WPA2 uses Counter Mode with Cipher Block...
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dcom 251 8-14 final exam Question and answers 100% correct 2024
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dcom 251 8-14 final exam Question and answers 100% correct 2024 
Which of the following is not a WLAN security standard? - correct answer WAP 
 
WLAN security based on a PSK technology is called ________ mode. - correct answer personal 
 
The strength of the electromagnetic waves being radiated from an antenna is referred to as gain, which involves a measurement of both direction and efficiency of a transmission. Gain is commonly measured using the dBi unit of measure. - correct answer true 
 
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OMIS 660 FINAL EXAM ALL POSSIBLE QUESTIONS AND ANSWERS 2024 ALREADY GRADED A+
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OMIS 660 FINAL EXAM ALL POSSIBLE QUESTIONS AND ANSWERS 2024 ALREADY GRADED A+ 
 
Wireless network standards operate at ______? Ans- The data link layer 
 
Wireless network standards are ________ standards. Ans- OSI 
 
Wi-Fi Standards come from the ________ Working Group. Ans- 802.11 
 
We use the terms Wi-Fi and ________ interchangeably in this book. Ans- 802.11 
 
Wireless access points typically link wireless clients to ________. Ans- Servers on the wired network. 
 
Compared to wire...
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CWNA Exam Questions & Answers 2023/2024
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CWNA Exam Questions & Answers 2023/2024 
 
 
DSSS uses only DBPSK for modulation. - ANSWER-False 
 
(DSSS uses DBPSK at 1 Mbps but uses DQPSK at 2 Mbps) 
 
Because of the relatively high speeds achieved with FHSS, it is widely implemented in WLAN systems. - ANSWER-False 
 
How many adjacent non-overlapping channels may be used in the same physical area using the 2.4 GHz spectrum? - ANSWER-3 
 
Which type of RF signal uses only a single frequency for transmission? - ANSWER-narrowband 
 
How wide ...
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WGU 178 Focused on Physical Security Measures, Monitoring Networks & Protecting Wireless Networks Exam Questions and Answers 2024/2025
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WGU 178 Focused on Physical Security Measures, Monitoring Networks & Protecting Wireless Networks Exam Questions and Answers 2024/2025 
 
OFDM - correct answer - orthogonal frequency division multiplexing 
 
- breaks data into sub signals and transmits them simultaneously across different frequencies or sub bands 
 
WEP - correct answer - wired equivalent privacy 
 
- a wireless security protocol that has weaknesses that allow it to be cracked fairly quickly 
 
What makes WEP so terrible - corre...
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