Modem - Study guides, Class notes & Summaries

IT 104 MIDTERM PRACTICE EXAM; Questions & Answers 100 Solved What is a device that modulates a carrier's signal to encode a computers digital data, and later demodulates the signal to decode the data at the receiving end? router modem bus folder network card Correct answer-router ** modem bus folder network card The programs that control the activity of the hardware and control the internal workings of the computer are called _____ software. busines

DIGITAL TECHNICIAN CONVENTIONAL 100% CORRECT ANSWERS | ESTUDY LATEST, ALL ANSWERED 100% 1. Why do digital modulation channels have measurable analog parameters? - A) They are based on digital signals only. - B) They modulate an analog RF carrier with digital data. - C) They operate solely in digital formats. - D) They have no relation to analog signals. - **ANSWER:** B) They modulate an analog RF carrier with digital data. 2. Which was the first version of the Data Over Cable Servi...

Which OSI layer is related to the function of the IP protocol suite? a. Transport b. Network c. Data Link d. Session - Network Which OSI layer is responsible for organizing how bits are passed over the physical layer between devices within the same collision domain? a. Frame b. Connection c. Transport d. Data Link - Data Link Which OSI layer would define the scope of a protocol that makes sure packets of data are received correctly and resends them if they are not? a. Valida...

Surgical Tech Certification Exam 4 | Questions and Correct Answers | Latest Update 2024/2025 Located on the back of the CPU are special openings called _____ for plugging in cables for adding additional computer components. drives. cords. ports. networks. - Answer -ports The largest storage capacity for portable saved information is the: Zip Drive 100. Zip Drive 250. CD-Rom. DVD. - Answer -DVDThe device that enables a computer to send and receive information by phone line is calle...

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...

_______ are based on vectors stored as a set of instructions describing the coordinates for lines and shapes in a three-dimensional space. - 3-D graphics _______ are used for creating software applications, Web sites, operating systems, and utilities. - Development tools _______ is a very clever process that requires one key to encrypt data, but a different key to decrypt it; the encryption key can't be used to decrypt the message. - Public key encryption A _______ contains circuitry that...

NAB 5 Questions With 100% Verified Answers The minimum qualification for a social worker in a 120 bed facility Is a(n) ___________. 1. Associates degree with 5 years of resident care 2. Bachelors degree in social work 3. Diploma and 2 years of being a social worker assistant 4. Bachelor's degree with 1 year as a social worker assistant - Correct Answer-Bachelor's degree with 1 year as a social worker assistant The MDS is transmitted by ______. 1. Phone 2. Fax 3. Computer or Modem 4...

Progression: Field Tech IV – V Exam Questions and Answers Baseband signaling - Answer ️️ -is predominant in Ethernet networks. two ways we can use a flow of energy to carry data - Answer ️️ -Analog and digital Simplex - Answer ️️ -A signal may flow in only one direction. A commercial radio station uses simplex communication, because listeners cannot transmit radio signals back to the station. Half-duplex - Answer ️️ -Signals may flow in either direction, but not simultane...

Computers and Broadband Modems 100% SOLUTIONS REVISED 2023//2024 One way to exhibit professionalism in your appearance is to - ANSWER Keep your hair neatly combed and clean. Being polite in professional communications with a customer includes - ANSWER Being culturally sensitive and not patronizing When you ask a customer open-ended questions, you are - ANSWER Being attentive to the customer and his issue(s) If stored data and hard drive formatting is lost on a customer's computer...

NOCTI PREP| 300 QUESTIONS| WITH COMPLETE SOLUTIONS 1. Which of the following are components you might find inside a PC? (Select all correct answers.) A. CPU B. Motherboard C. Keyboard D. Printer E. RAM F. Cable modem - Correct Answers A, B, E 2. Which device stores data over the long term? A. CPU B. RAM C. Hard drive D. Video card - Correct Answers C 3. You would normally plug speakers into what type of port? A. Parallel B. DVI C. 1/8-inch TRS D. 1/4-inch TRS - Correct Answe...