Telecommunications Network Fundamentals 1 — Questions and Answers
Question 1: What does OSI stand for in networking?
- Open Systems Interconnection (Correct answer)
- Optical Signal Interface
- Open Source Integration
- Operational Systems Index
Correct answer: Open Systems Interconnection
OSI stands for Open Systems Interconnection, a conceptual framework for understanding how network protocols interact.
Question 2: How many layers are in the OSI model?
- 5
- 6
- 7 (Correct answer)
- 8
Correct answer: 7
The OSI model has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.
Question 3: Which OSI layer is responsible for IP addressing and routing?
- Data Link
- Transport
- Network (Correct answer)
- Session
Correct answer: Network
The Network layer (Layer 3) handles logical addressing (IP) and routing between networks.
Question 4: What is the primary function of a repeater in a network?
- Filter traffic
- Regenerate and amplify signals (Correct answer)
- Assign IP addresses
- Encrypt data
Correct answer: Regenerate and amplify signals
A repeater regenerates and amplifies signals to extend the range of a network segment.
Question 5: Which transmission medium offers the highest bandwidth for telecommunications?
- Coaxial cable
- Twisted pair copper
- Fiber optic cable (Correct answer)
- Wireless RF
Correct answer: Fiber optic cable
Fiber optic cable offers the highest bandwidth because it transmits data as light pulses through glass or plastic fibers.
Question 6: What does the term 'full duplex' mean in telecommunications?
- Data travels in one direction only
- Data travels in both directions simultaneously (Correct answer)
- Data travels in both directions but not at the same time
- Data travels in four directions
Correct answer: Data travels in both directions simultaneously
Full duplex allows simultaneous two-way communication, unlike half duplex which requires turn-taking.
Telecommunications Network Fundamentals 1
What does OSI stand for in networking?