Physical layer - Study guides, Class notes & Summaries

CNIT 242 Exam 2 Questions and Answers Graded A+ Virtualization running multiple systems simultaneously on one physical computer System Virtualization The process of emulating hardware so it can be made available to multiple logical systems True or False: Each system is independent of all others True A single computer (virtual server) appears as WHAT TYPE of computers to multiple client or guest operating systems? independent Traditional vs virtualized -Traditionally, hardware is dedicated to...

CNIT 344 Exam 2 Guaranteed A+ OSI Layers: ️ 1. Physical 2. Data Link 3. Network 4. Transport 5. Session 6. Presentation 7. Application --- Layer 3 Provides: ️ Globally unique addressing for every node in the network. --- What does Layer 3 convert? ️ Data to Packets. --- Routable Protocols of Layer 3: ️ IP, IPX, AppleTalk. --- Layer 3 determines: ️ Routes between source and destination networks, analyzing at each hop for end-to-end...

Which of the following is the physical infrastructure that provides interconnections between ISPs? a. A demarcation point b. An Internet exchange point c. A central office d. A point of presence → b. An Internet exchange point 1.2 Which of the following provides physical separation between service provider and customer responsibilities? a. A provider edge router b. An Internet exchange point c. A demarcation point d. A point of presence → c. A demarcation point 1.3 Which TCP/IP...

Milady Standard Barbering Chapters 10-12 (Properties and Disorders of the Hair and Scalp| Treatment of the Hair and Scalp & Men's Facial Massage and Treatments) Exam Questions and Verified Answers| 100% Correct| Grade A Chapter 10 – Properties and Disorders of the Hair and Scalp Q: What are red papules that can be found in the opening in the hair follicles? Answer: Tinea capitis' Q: What is the common term for a furuncle? Answer: Boil Q: What is measured by...

ITN 100 MIDTERM EXAM QUESTIONS WITH ANSWERS (1) The network layer is responsible for routing messages from the source computer to the destination computer. - Answer-TRUE Which of the following is not an important future trend in communication and networking? - Answer-development of online batch systems Which is not a function of the physical layer - Answer-providing error-free transmission of data. In which layer of the Internet model would the HTTP standard be used? - Answer- APPLICAT...

ISTM 310 Midterm Review, Questions and answers, GRADED A+ What are the seven layer of the OSI 7 layer model? 7. Application 6. Presentation 5. Session 4. Transport 3. Network 2. Data Link 1. Physical As data moves from the data the user cares about towards the direct connection between devices, it is _____ with additional information. encapsulation, encapsulated At what layer in the OSI model is the human - CPU layer? Application At what layer in the OSI model makes data usable?...

Layers of the skin - epidermis, dermis, hypodermis Stratum Corneum - Protective durable overcoat, waterproof, tough, relatively insensitive to biological, chemical and physical assault. Stratum Lucidum - visible only in thick skin, few layers thick, dead clear cells Stratum Granulosum - 3-5 layers of thick keratinocytes flastten out Stratum Spinosum - overlies the stratum basale, cells come from the basale, filaments u the cells that resist tension, keratinocytes have a spiny appearance, c...

What happens when you apply too much pressure during facial massage? - Weaken or break down elasticity What color shows under the Wood's Lamp for hyperpigmentation? - Brown If an esthetician/practitioner leaves a drawer open during a service, what must be done to maintain sanitation? - Remove contents and resanitize them Where is the hair root located? - Bottom of the hair follicle, below the surface of the skin What is the Fitzpatrick scale? - Estimates how skin reacts to UV light ...

BNSF Telecom 1 Exam Questions with Correct Answers VHF - Low and High range Very High Frequency - Answer-Low is 30 to 50 MHz High is 150 to 300 MHz UHF - Ultra High Frequency - Answer-300 MHz - 3 GHz Super High Frequency - SHF - Answer-3-30 GHz Extremely High Frequency - EHF - Answer-30-300 GHz Legacy Band - Answer-25 kHz wide channel Very Narrowband - Answer-6.25 kHz wide, digital Narrowband - Answer-12.5 kHz wide analog What is dB and how much power is it - Answer-dB is a de...

Waxing practice written for state Board test 2024 with complete solution Bacteria - One-celled microorganism with both plant and animal characteristics Bacteria are so small you have to use what to see them? - Microscope Pathogenic - Small minority of harmful bacteria that invades plant or animal tissue Communicable - Infection transmitted from one person to another Pus forming bacteria in the shape of a string of beads - Streptococci Round shaped pathogenic bact...