1. A data center requires a high-speed network with no electromagnetic interference for connections within the same building. Which cable type should be used?
A. CAT 5e
B. Wireless
C. Coaxial
D. Multimode fiber Correct
Explanation
Multimode fiber ensures blazing-fast data transfer without electromagnetic interference, perfect for a data center's bustling environment. CAT 5e, while reliable for Ethernet, is susceptible to interference. Wireless signals can be disrupted and lack the consistent speed needed. Coaxial, though robust for certain uses, doesn't match fiber’s interference immunity or bandwidth.
2. A cable television service provider installs a physical medium that transmits broadband signals over long distances. Which type of cable is typically used in this situation?
A. Coaxial Correct
B. Cat7
C. Cat5e
D. Twisted pair
Explanation
Coaxial cables are the backbone of cable TV, designed to carry broadband signals over long distances with minimal loss. Cat7 and Cat5e, while great for high-speed Ethernet, aren't optimized for broadband delivery over extended ranges. Twisted pair lacks the shielding and bandwidth capacity for this specific purpose.
3. A university interconnects multiple buildings using fiber-optic cabling. Which type of network is being used?
A. CAN (campus area network) Correct
B. WAN (wide area network)
C. SAN (storage area network)
D. MAN (metropolitan area network)
Explanation
A Campus Area Network (CAN) links multiple buildings within a confined area like a university, leveraging fiber-optics for speed. A WAN spans larger regions, like cities or countries. A SAN focuses on storage, not general networking. A MAN covers a city, too broad for a campus setting.
4. A business configures its network with a central device that connects multiple workstations. Which topology is being used?
A. Mesh
B. Ring
C. Star Correct
D. Bus
Explanation
The star topology, with a central hub connecting all workstations, is ideal for business efficiency and easy management. Mesh creates complex, direct connections between all devices, overkill for this setup. Ring passes data in a loop, less common today. Bus uses a single shared line, prone to bottlenecks.
5. A network is set up with a single communication line where all devices share the same transmission medium. Which topology does this describe?
A. Bus Correct
B. Hybrid
C. Tree
D. Star
Explanation
A bus topology connects all devices to a single shared cable, defining this setup. Hybrid combines multiple topologies, not a single line. Tree branches out hierarchically, unlike a linear bus. Star uses a central hub, not a shared medium.