Ofdm Guides d'étude, Notes de cours & Résumés

NCTI Final Exam: Progression Field Tech 2- 3 Exam| New Update 2023/ 2024|Verified Questions and Answers 1. What would be the downstream throughput if two QAM channels with a throughput of 38 Mbps were bonded?  Answer: 76 Mbps. 2. What are two features that were added in DOCSIS 3.1 to extend the viability of HFC networks into the next decade?  Answer: OFDM and LDPC. 3. Which step in the troubleshooting process requires a discussion with the customer to gather more...

CMIT 321| ETHICAL HACKING| FINAL EXAM WITH 100% CORRECT ANSWERS| 2024|GRADED A 1. What are the three techniques that can used to propagate malicious code? o Autonomous o Back dating o Centralsource o Back chaining 2. Which of the following is a transmission method of digital date that uses a pseudo random noise spreading code? o IR o OFDM o DSSS o FHSS 3. Using private, non-routable IP address for a penetration test is an example of: o External assessment o Network based assessme...

Spectrum Field Tech Questions and Answers 100% Pass Current/ amperage Flow or movement of electric charges Resistor a passive two-terminal material that impedes the flow of current What is the most common workplace hazard involving electricity? Electrical shocks What is minimum approach distance? The shortest safe distance to keep from energized conductors CATV at the pole 40'' CATV at the mid-span 24'' CATV at the house 12'' Live parts of electric equipment must be guarded against ...

WGU C172 Study Guide Set Questions and Answers Already Passed NIC What functions at the data link by using a unique MAC address? Router a network device that is used to connect 2 or more network segments by performing OSI layer 3 functions like packet-forwarding responsible for implementing NAT File Server used as a shared storage for all member nodes of a LAN Layer 1 Physical Layer Layer 2 Data link layer Layer 3 Network layer Layer 4 Transport layer Layer 5 Session layer Layer 6 Prese...

WGU C172 Objective Assessment Study Guide (Latest 2023/ 2024 Update) Network and Security Foundations| Questions and Verified Answers| 100% Correct Q: This standard can provide data transfer rates up to 54Mbps and an operating range up to 75 feet. It operates at 5GHz and uses OFDM Answer: 802.11a (Wireless-A) Q: This standard can provide data transfer rates up to 11Mbps with ranges of 100-150 feet. it operates at 2.4GHz and uses DSSS Answer: 802.11b (Wireless-B) Q:...

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...

Advanced DOCSIS 3.1 Operations Because they use different transmission and coding schemes, the DOCSIS 3.1 Physical (PHY) Layer is incompatible with the PHY Layer of previous DOCSIS versions. How does DOCSIS 3.1 comply with the requirement of compatibility with previous DOCSIS versions? - DOCSIS 3.1 has two PHY Layers, one for previous DOCSIS versions and another for DOCSIS 3.1. Both Layers can operate simultaneously or individually. The DOCSIS MAC and Upper Layer Protocols Interface (M...

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? - ANSWER 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? - ANSWER To avoid false detection of l...

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...

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...