A network administrator is troubleshooting a network that uses a hub to connect several devices. The administrator sees a high number of collisions on the hub. The administrator wants to reduce collisions but has a limited budget. Which action would be the most cost-effective way to reduce collisions?

Change all devices to full duplex.

Reduce the number of devices on the hub.

Use a router instead of the hub.

A network technician replaces a faulty cable between a switch port and a server NIC. The link comes up, but the switch shows increasing CRC errors and late collisions on that port. The server NIC is configured for 100 Mbps full duplex. What is the most likely cause and the first corrective action?

The cable is a crossover cable; replace it with a straight-through cable.

The switch port is set to half duplex; configure the switch port for full duplex.

The switch port speed is set to 10 Mbps; change it to 100 Mbps.

The server NIC is faulty; replace the NIC.

What is the most common impact of a speed mismatch on an Ethernet link?

The link fails to come up or remains in a down/error state

The link comes up but experiences excessive collisions

The link comes up but only passes traffic in one direction

The link comes up but runs at the lower of the two speeds

A network admin is troubleshooting a link between two switches. The link is up, but performance is poor. Switch A shows the port as '100 Mbps, full duplex' with increasing 'late collisions'. Switch B shows the port as '100 Mbps, half duplex' with no errors. What is the most likely cause and the best corrective action?

Faulty cable; replace the cable.

Switch B is faulty; replace Switch B.

Speed mismatch; configure both switches to 100 Mbps.

Duplex mismatch; configure both switches to full duplex.

CiscoCertified Network Associate (CCNA)

Domain 1Objective 4

1.4 Identify Interface and Cable Issues (collisions, Errors, Mismatch Duplex, And/or Speed) 200-301 Practice Questions (Page 6)

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 40 practice questions to prepare you well beyond it. (estimate)

40questions here

8free pages

6concepts

20%of the exam

Questions 26–30

26expert · hard
A network administrator is troubleshooting a network that uses a hub to connect several devices. The administrator sees a high number of collisions on the hub. The administrator wants to reduce collisions but has a limited budget. Which action would be the most cost-effective way to reduce collisions?
Select an answer first
27foundation · easy
Which interface error counter indicates frames that are shorter than the minimum Ethernet frame size and also have an invalid frame check sequence?
Select an answer first
28application · medium
A network technician replaces a faulty cable between a switch port and a server NIC. The link comes up, but the switch shows increasing CRC errors and late collisions on that port. The server NIC is configured for 100 Mbps full duplex. What is the most likely cause and the first corrective action?
Select an answer first
29foundation · easy
What is the most common impact of a speed mismatch on an Ethernet link?
Select an answer first
30expert · hard
A network admin is troubleshooting a link between two switches. The link is up, but performance is poor. Switch A shows the port as '100 Mbps, full duplex' with increasing 'late collisions'. Switch B shows the port as '100 Mbps, half duplex' with no errors. What is the most likely cause and the best corrective action?
Select an answer first

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1.4 Identify Interface and Cable Issues (collisions, Errors, Mismatch Duplex, And/or Speed) 200-301 Practice Questions (Page 6)

Questions 26–30

Which interface error counter indicates frames that are shorter than the minimum Ethernet frame size and also have an invalid frame check sequence?

A network technician replaces a faulty cable between a switch port and a server NIC. The link comes up, but the switch shows increasing CRC errors and late collisions on that port. The server NIC is configured for 100 Mbps full duplex. What is the most likely cause and the first corrective action?

What is the most common impact of a speed mismatch on an Ethernet link?

Keep studying — Network Fundamentals