CISCO 100-490 Free Exam Questions

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1 / 60

Which protocol does TFTP typically use for transport?

UDP

TCP

HTTP

RSVP

2 / 60

Which address facilitates the routing of packets over an IP network?

Network

MAC

Transport

Physical

3 / 60

What is the correct IPv6 address notation?

2001:0DB8::1:1:1:1:1

2001:0DB8:0::

2001:0DB8::/128

2001:0DB8:130F:0000:0000:7000:0000:140B

4 / 60

Which layer of the OSI model defines how data is formatted for transmission and how access to the physical media is controlled?

Transport

Network

Presentation

Data link

5 / 60

Which device is a DTE device?

DSL modem

cable modem

CSU/DSU

Router

6 / 60

What are two components of a WAN connection? (Choose two.)

Hub, Switch

Switch, CSU/DSU

Bridge, Hub

Router, Bridge

CSU/DSU, Router

7 / 60

Which two IPv4 addresses can be assigned to a host computer? (Choose two.)

255.255.255.255, 0.0.0.0

10.1.1.20, 192.168.10.15

0.0.0.0, 292.10.3.4

192.168.10.15, 255.255.255.255

292.10.3.4, 255.255.255.255

8 / 60

Which two pairs of LAN Ethernet devices use an RJ-45 straight-through cable? (Choose two.)

Switch-to-switch, Router-to-router

Switch-to-router, Switch-to-server

Switch-to-hub, Switch-to-switch

Router-to-router, Switch-to-hub

Switch-to-server, Switch-to-hub

9 / 60

Which command shows the status of power supplies and sensor temperatures?

Show environment

Show module

Show diag

Show hardware

10 / 60

Which type of physical connector does a Gigabit Ethernet port typically use?

RJ-11

DB-25

RJ-9

RJ-45

11 / 60

What are two standard fiber-optic connectors? (Choose two.)

Multidimension, Rollover

Subscriber, Multidimension

Crossover, Lucent

Rollover, Crossover

Lucent, Subscriber

12 / 60

When you deploy Cisco Catalyst 3850 Series switches, which two modes of operation can you choose from?

Exec mode and User mode

Boot mode and Run mode

Active mode and Standby mode

Install mode and Bundle mode

13 / 60

Which command displays a list of file systems that are available on Cisco devices?

Show file system

Show directory

Show version

Show memory

14 / 60

Which type of Cisco console cable is used to connect a laptop to the console port on a Cisco router?

Crossover

Rollover

Fiber

Straight-through

15 / 60

Which type of port on a laptop is used to connect to an Ethernet port on a Cisco switch?

RJ-45

RJ-11

DB-9

DVI

16 / 60

Which two pieces of information are displayed when you use the show ip interface brief command? (Choose two.)

Layer 2 address, Keepalive

Keepalive, Layer 2 address

Layer 3 address, Interface status

Encapsulation type, Interface status

Interface status, Layer 2 address

17 / 60

Which command sends an echo request packet to the target host and then waits for an echo response message?

Ping

Connect

Access

Echo

18 / 60

What is the Windows-based program that executes the ping command to test network connectivity?

Ipconfig

Start

Find

Cmd

19 / 60

Which Windows-based text editor is preferred for working with a simple text document, such as a Cisco configuration?

Microsoft Excel

Microsoft Access

Microsoft Word

Microsoft Notepad

20 / 60

From a Windows command prompt, which command displays the local IP address of a computer?

Ipconfig

Ip config

Ip configuration

Ipconfiguration

21 / 60

Which command displays information about the carrier network, cell site, and available service?

Show cellular unit profile

Show cellular unit hardware

Show cellular unit radio

Show cellular unit network

22 / 60

Which command provides detailed information about the components that are installed on a router, such as the model, PID, and serial number?

Show inventory

Show router

Show items

Show chassis

23 / 60

Which two pieces of information about a neighboring device are displayed when you use the CLI command show cdp neighbor? (Choose two.)

Platform, Device ID

Uptime, IP address

Device ID, Cisco IOS Software version

Cisco IOS Software version, Platform

IP address, Uptime

24 / 60

Cisco NX-OS has added the ability to use which type of custom scripting to help manage user networks?

Python

Collective

SQL

C++

25 / 60

At the interface configuration prompt, which command returns you to the main configuration prompt?

Exit

Quit

Clear

End

26 / 60

Which Cisco CPAK 100GBASE module supports Multimode Fiber cable?

Cisco CPAK-100G-SR4

Cisco CPAK-100G-ER4L

Cisco CPAK-100G-LR4

Cisco CPAK-100G-CWDM4

27 / 60

Which command displays the configuration register setting?

Show version

Show config-register

Show running-config

Show flash

28 / 60

Which type of transceiver module is used for 40 Gigabit Ethernet connectivity?

QSFP+

XFP

GBIC

SFP+

29 / 60

The colored wires at one end of a cable are in reverse sequence to the colored wires at the other end of the cable. Which cable does this configuration describe?

Straight-through

Coaxial

Rolled

Crossover

30 / 60

Which two ports on a laptop are used to gain console access to a Cisco switch? (Choose two.)

DB-9, USB

USB, RJ-45 Ethernet

DVI, RJ-11

RJ-11, DB-9

RJ-45 Ethernet, DVI

31 / 60

What is the line speed of a DS0 in North America?

64 kbps

128 kbps

32 kbps

16 kbps

32 / 60

What is the default operating mode when you initially log in to a router?

ROM monitor

Privileged EXEC

Global configuration

User EXEC

33 / 60

The pins on an RJ-45 cable plug are numbered from 1 through 8. When the metal pins of the plug are facing toward you, pin 1 is the leftmost pin. Which two sets of pins are looped on an RJ-45 56K loopback plug? (Choose two.)

Pins 2 and , Pins 2 and 8

Pins 2 and 8, Pins 1 and 4

Pins 2 and 5, Pins 1 and 4

Pins 1 and 7, Pins 2 and 8

Pins 1 and 4, Pins 1 and 7

34 / 60

How many pairs of copper wire does a UTP cable have?

35 / 60

Which type of memory is used to permanently store Cisco IOS Software?

DRAM

Flash

SRAM

NVRAM

36 / 60

Which type of memory stores the configuration of a router or switch by default?

FLASH

NVRAM

ROM

RAM

37 / 60

Which type of memory stores the decompressed form of Cisco IOS Software and the running configuration?

DRAM

ROM

NVRAM

FLASH

38 / 60

Which two commands identify the serial number of a Cisco router? (Choose two.)

Show run, Show environment

Show inventory, Show version

Show environment, Show run

Show version, Show archive

Show archive, Show inventory

39 / 60

Which bits represent the boot field in the configuration register value?

Lowest four bits

Lowest two bits

Highest four bits

Highest two bits

40 / 60

Which two Cisco Nexus 3400 Series switches support 400-Gbps Ethernet ports? (Choose two.)

Cisco Nexus 34180YC, Cisco Nexus 3464C

Cisco Nexus 34200YC-SM, Cisco Nexus 34180YC

Cisco Nexus 3432D-S, Cisco Nexus 3408-S

Cisco Nexus 3408-S, Cisco Nexus 34180YC

Cisco Nexus 3464C, Cisco Nexus 3432D-S

41 / 60

How are IPv6 addresses notated?

2001:0DB8::/128

2001:0DB8:0::

2001:ODB8::1:1:1:1:1

2001:0DB8:130F:0000:0000:7000:0000:140B

42 / 60

From the enable mode, which command loads the configuration during the password recovery process on a Cisco router?

Copy startup-config running-config

Copy running-config startup-config

Configure terminal

Load_helper

43 / 60

Which set of steps best describes how to assign a static IP address to the Ethernet port on a computer?

From the Network and Sharing Center, double-click Local Area Connection. Select Properties > iPass Protocol (IEEE 802.1x) > Properties > Static IP

Click Start. Enter cmd and click OK. Enter the IP address XXX.XXX.XXX.XXX

From the Network and Sharing Center, click Internet Protocol (TCP/IP), and follow the New Connection Wizard instructions

From the Network and Sharing Center, click Change adapter, then double-click a local area connection. Select Internet Protocol (TCP/IP) > Properties > Use the Following Address, and then configure the IP information

44 / 60

Which command initiates the copying of a Cisco IOS image to a Cisco device?

Copy xmodem flash

Copy flash tftp

Copy tftp nvram

Copy tftp flash

45 / 60

TFTP is a simple protocol for transferring files, such as a Cisco IOS or configuration file, from one device to another. Which device can be configured as a TFTP server?

CSU/DSU

Cisco router

Modem

Cisco Content Engine

46 / 60

What is the primary method for recovering or upgrading a Cisco network device system image?

The tftpdnld command

The xmodem command

FTP

USB storage

47 / 60

How is the configuration register typically changed for a password recovery process on a Cisco router?

By setting the register to 0x2142

Through the Windows Control Panel

Using the 'configure terminal' command

Through the boot setup menu

48 / 60

What should be tested when diagnosing Ethernet Layer 2 issues related to speed?

(Choose Two)

Gateway settings, Subnet masks

Port speed settings, Duplex settings

Subnet masks, Gateway settings

Duplex settings, Subnet masks

49 / 60

Cisco IOS-XR is tailored for __________, offering modular processes and fault containment.

Wireless communication

Small businesses

Desktop management

Service provider networks

50 / 60

Which subnet mask would typically be used with a Class C IPv4 network?

0.0.0.255

255.0.0.0

255.255.0.0

255.255.255.0

51 / 60

A LAN switch operates at which layer of the OSI model?

Layer 7 (Application)

Layer 3 (Network)

Layer 1 (Physical)

Layer 2 (Data Link)

52 / 60

Performing a software downgrade using xmodem typically requires access to which router mode?

Setup mode

Bootloader mode

Router Configuration mode

ROMMON mode

53 / 60

Identify the correct RJ45 loop-back plug pinout configuration for testing a Cisco router Ethernet port.

Pins 1 and 2 connected to Pins 3 and 6

Pins 1 and 4 connected to Pins 7 and 8

Pins 2 and 5 connected to Pins 7 and 8

Pins 1 and 3 connected to Pins 6 and 8

54 / 60

Which command returns the user to the main configuration prompt from the interface configuration prompt?

Exit

Clear

Quit

End

55 / 60

Which type of custom scripting has Cisco NX-OS added to help manage user networks?

SQL

Python

Collective

C++

56 / 60

What are the choices for modes of operation when deploying Cisco Catalyst 3850 Series switches?

Exec mode and User mode

Boot mode and Run mode

Active mode and Standby mode

Install mode and Bundle mode

57 / 60

Which Xmodem option is used to enhance error checking of an image that is copied to flash memory?

-c

-x

-r

-e

58 / 60

Which type of port is used to connect a laptop to an Ethernet port on a Cisco router?

Straight-through

Crossover

Fiber

Rollover

59 / 60

Which router port is used for dial-in access to the router for CLI management purposes and does not usually pass normal network traffic?

AUX

Gigabit Ethernet

channelized serial

Fast Ethernet

60 / 60

Which type of cable is used to connect a laptop to an Ethernet port on a Cisco router?

Crossover

Straight-through

Fiber

Rollover

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Free 100-490 Exam Questions – 2025 Updated

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