A network engineer is designing a small office LAN using a single switch. The engineer wants to ensure that each connected device has its own collision domain. What is the best way to achieve this?

Use a router instead of a switch

Connect each device to a separate switch port

Which set of characteristics correctly describes single-mode fiber optic cabling?

Core diameter of 50 microns, uses an LED light source, supports distances up to 550 meters

Core diameter of 100 microns, uses an LED light source, supports distances up to 100 meters

Core diameter of 62.5 microns, uses a laser light source, supports distances up to 2 km

Core diameter of 9 microns, uses a laser light source, supports distances up to 10 km and beyond

A company is planning a new data center. The network team must choose cabling for two types of connections: server-to-switch links within the same rack (up to 10 m) and switch-to-core links across the data center (up to 300 m). The budget is moderate, and future 40 Gbps upgrades are expected. Which cabling strategy best balances cost and future-proofing?

Use OM4 multimode fiber for both server and switch-to-core links

Use Cat 6a UTP for both server and switch-to-core links

Use Cat 6a UTP for server links and OM4 multimode fiber for switch-to-core links

Use single-mode fiber for switch-to-core links and OM4 multimode for server links

CiscoCertified Network Associate (CCNA)

Domain 1Objective 3

1.3 Compare Physical Interface and Cabling Types 200-301 Practice Questions (Page 5)

Part of the Network Fundamentals domain, which accounts for 20% of the 200-301 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–1 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

5concepts

20%of the exam

Questions 21–25

21application · medium
A network engineer is designing a small office LAN using a single switch. The engineer wants to ensure that each connected device has its own collision domain. What is the best way to achieve this?
Select an answer first
22foundation · easy
Which set of characteristics correctly describes single-mode fiber optic cabling?
Select an answer first
23expert · hard
A company is planning a new data center. The network team must choose cabling for two types of connections: server-to-switch links within the same rack (up to 10 m) and switch-to-core links across the data center (up to 300 m). The budget is moderate, and future 40 Gbps upgrades are expected. Which cabling strategy best balances cost and future-proofing?
Select an answer first
24application · medium
A university is connecting two buildings 250 m apart on the same campus. The link will carry 1 Gbps traffic. The IT team has a limited budget and wants to use the existing fiber infrastructure, which is multimode OM3. Which transceiver type should they use?
Select an answer first
25expert · hard
A network engineer is troubleshooting a link between a switch and a server. The link is up but experiencing a high number of CRC errors. The engineer checks the configuration and finds that the switch port is set to full-duplex and the server NIC is set to half-duplex. What is the most likely cause of the CRC errors?
Select an answer first

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1.3 Compare Physical Interface and Cabling Types 200-301 Practice Questions (Page 5)

Questions 21–25

A network engineer is designing a small office LAN using a single switch. The engineer wants to ensure that each connected device has its own collision domain. What is the best way to achieve this?

Which set of characteristics correctly describes single-mode fiber optic cabling?

A university is connecting two buildings 250 m apart on the same campus. The link will carry 1 Gbps traffic. The IT team has a limited budget and wants to use the existing fiber infrastructure, which is multimode OM3. Which transceiver type should they use?

Keep studying — Network Fundamentals