CISCO 100-490 Supporting Cisco Routing and Switching Network Devices v3.0 Free Practice Test — 30 Questions

Question 1

Which of the following best describes the purpose of a subnet mask in TCP/IP networking?

Accepted Answer

To determine the network portion of an IP address.

Question 2

What is the function of the Transport layer in the OSI model?

Accepted Answer

It segments, reassembles, and manages end-to-end data delivery.

Question 3

Scenario:
Ms. Lee is configuring a Cisco router for a small office network. She needs to assign a static IP address to the router\'s Ethernet interface. Which command should Ms. Lee use to accomplish this task?

Accepted Answer

ip address <address> <subnet mask>

Question 4

In the context of networking, what is the purpose of a MAC address?

Accepted Answer

To uniquely identify a device within a network.

Question 5

What is the primary function of the Network layer in the OSI model?

Accepted Answer

To manage routing decisions and forward data packets between networks.

Question 6

Which TCP/IP protocol is responsible for dynamically assigning IP addresses to devices on a network?

Accepted Answer

DHCP

Question 7

Scenario:
Mr. Thompson is troubleshooting a network connectivity issue and suspects that a router interface might be down. Which Cisco IOS command should he use to verify the status of all interfaces on the router?

Accepted Answer

show interfaces

Question 8

What is the primary function of the Spanning Tree Protocol (STP) in a network?

Accepted Answer

To prevent loops and ensure a loop-free topology in Ethernet networks.

Question 9

Scenario:
Mr. Patel is configuring VLANs on a Cisco switch for a small office network. He wants to create a new VLAN named "Marketing" with VLAN ID 20. Which command should Mr. Patel use to create this VLAN?

Accepted Answer

vlan 20 name Marketing

Question 10

Which of the following best describes the purpose of the Presentation layer in the OSI model?

Accepted Answer

To format, encrypt, and compress data for transmission.

Question 11

What is the primary purpose of subnetting in TCP/IP networking?

Accepted Answer

To divide a large network into smaller, more manageable subnetworks.

Question 12

What is the primary role of a router in a network?

Accepted Answer

To interconnect multiple networks and forward data packets between them.

Question 13

What is the purpose of the ARP (Address Resolution Protocol) in TCP/IP networking?

Accepted Answer

To resolve IP addresses to MAC addresses for data delivery.

Question 14

Scenario: Mr. Smith is configuring a Cisco router for his company\'s network. He wants to ensure that the router is secure and only authorized users can access it remotely. Which of the following methods should Mr. Smith use to securely manage the router remotely?

Accepted Answer

SSH

Question 15

Which of the following best describes the purpose of the Spanning Tree Protocol (STP) in a network?

Accepted Answer

Loop prevention

Question 16

In the OSI model, which layer is responsible for ensuring end-to-end delivery of data and providing error detection and correction?

Accepted Answer

Transport layer

Question 17

Which of the following is a characteristic of a VLAN (Virtual Local Area Network)?

Accepted Answer

It extends across multiple physical switches.

Question 18

Which of the following routing protocols uses a distance vector algorithm and includes features such as split horizon and poison reverse to prevent routing loops?

Accepted Answer

RIP (Routing Information Protocol)

Question 19

Which of the following commands is used to display the current IP routing table on a Cisco router?

Accepted Answer

show ip route

Question 20

What is the purpose of subnetting in a TCP/IP network?

Accepted Answer

To conserve IP addresses

Question 21

Which of the following is a characteristic of a switch in a network?

Accepted Answer

Filters and forwards packets based on MAC addresses

Question 22

Which of the following statements accurately describes the purpose of the Data Link layer in the OSI model?

Accepted Answer

Controls access to the physical medium and frames data for transmission

Question 23

Which of the following best describes the function of a router in a network?

Accepted Answer

Determines the best path for packets to reach their destination network

Question 24

Which of the following is a characteristic of the TCP/IP protocol suite?

Accepted Answer

It is a suite of protocols used for communication over the Internet.

Question 25

Which of the following statements accurately describes the purpose of the Network layer in the OSI model?

Accepted Answer

Determines the best path for data packets to reach their destination.

Question 26

Which of the following is a characteristic of a Cisco router\'s Configuration Register setting?

Accepted Answer

It controls the operation mode of the router, such as ROMMON or IOS mode.

Question 27

What is the primary purpose of a subnet mask in a TCP/IP network?

Accepted Answer

To identify the network portion of an IP address.

Question 28

Which of the following commands is used to configure an IP address on a Cisco router interface?

Accepted Answer

interface [interface_name]

Question 29

What is the purpose of the ARP (Address Resolution Protocol) in a TCP/IP network?

Accepted Answer

To discover the MAC address of a device based on its IP address.

Question 30

What is the primary function of the spanning tree algorithm in a network?

Accepted Answer

Loop prevention

CISCO 100-490 Supporting Cisco Routing and Switching Network Devices v3.0 Free Practice Test — 30 Questions

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