[Nov 14, 2024] Braindumps2go 100-490 Exam Practice Test Questions (Updated 74 Questions)

Pass Cisco 100-490 Exam Info and Free Practice Test

Cisco 100-490 exam is a challenging and rewarding certification for IT professionals who are looking to enhance their career in network engineering. 100-490 exam covers a wide range of topics related to Cisco routing and switching devices and requires candidates to demonstrate their knowledge and skills through various question formats. By passing 100-490 exam, candidates can demonstrate their expertise in supporting Cisco routing and switching network devices and advance their career in the field of network engineering.

NEW QUESTION # 43
Cisco NX-OS has added the ability to use which type of custom scripting to help manage user networks?

• A. SQL
• B. Python
• C. Collective
• D. C++

Answer: B

NEW QUESTION # 44
Which type of transceiver module is used for 40 Gigabit Ethernet connectivity?

• A. QSFP+
• B. XFP
• C. SFP+
• D. GBIC

Answer: A

Explanation:
For 40 Gigabit Ethernet connectivity, the type of transceiver module used is QSFP+ (Quad Small Form-Factor Pluggable Plus). QSFP+ modules are designed to carry 40-Gigabit Ethernet signals over fiber-optic or copper networking cables. They provide high-density and low-power 40 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core and distribution layers, and service provider applications. QSFP+ modules are an evolution of the SFP+ (Small Form-Factor Pluggable Plus) modules, offering four times the bandwidth capacity1.

NEW QUESTION # 45
Which router port is used for dial-in access to the router for CLI management purposes and does not usually pass normal network traffic?

• A. Gigabit Ethernet
• B. channelized serial
• C. Fast Ethernet
• D. AUX

Answer: D

Explanation:

The AUX (Auxiliary) port on a router is used for dial-in access for CLI (Command Line Interface) management purposes. It is typically connected to a modem and allows an administrator to dial into the router's CLI for remote management. This port is not used for passing normal network traffic, which differentiates it from other ports like Fast Ethernet or Gigabit Ethernet that handle regular data flow. The AUX port is specifically designed as a backup async port for management access1.

NEW QUESTION # 46
Which protocol does TFTP typically use for transport?

• A. TCP
• B. RSVP
• C. HTTP
• D. UDP

Answer: D

NEW QUESTION # 47
Refer to the exhibit.

Which two statements about the hardware components are true? (Choose two.)

• A. 3 is a USB 5-pin mini USB Type B port.
• B. 2 is an RJ-45 to USB Type A console cable.
• C. 2 is a USB 5-pin mini USB Type B to USB Type A console cable.
• D. 1 is a USB Type A port.
• E. 3 is a USB Type A port.

Answer: A,C

Explanation:
The image provided shows a networking device connected to a laptop via a console cable. Based on the visual indicators and standard port designs:
C . 3 is a USB 5-pin mini USB Type B port: The port labeled "3" on the laptop is smaller than a standard USB Type A port, which suggests it is a mini USB Type B port, commonly used for connecting to networking devices for console access.
E . 2 is a USB 5-pin mini USB Type B to USB Type A console cable: The cable labeled "2" has one end that fits into the mini USB Type B port on the laptop (as identified in point 1), and the other end, which is not clearly visible in the image, is inferred to be a USB Type A connector that would typically connect to a computer's USB port.

NEW QUESTION # 48
Which bits represent the boot field in the configuration register value?

• A. highest two bits
• B. highest four bits
• C. lowest two bits
• D. lowest four bits

Answer: D

NEW QUESTION # 49
What are two functions of SmartJack? (Choose two.)

• A. It operates at Layer 2 of the OSI model.
• B. It provides channel testing.
• C. It provides signal conversion.
• D. It regenerates the signal to compensate for signal degradation from line transmission.
• E. It acts as a concentration point for dial-in and dial-out connections.

Answer: C,D

Explanation:
A SmartJack is a type of Network Interface Device (NID) that provides advanced features beyond simple electrical connection. Two of its functions include:
* Regenerating the signal: Similar to a repeater, a SmartJack can buffer and regenerate the signal to compensate for signal degradation that occurs during line transmission. This helps maintain signal integrity over longer distances1.
* Signal conversion: A SmartJack may also provide signal conversion, which involves converting codes and protocols to the type needed by the customer equipment. This can include converting framing types or other signal characteristics to ensure compatibility with the connected devices1.
The other options listed are not primary functions of a SmartJack:
* Operating at Layer 2 of the OSI model is not a function of a SmartJack; it is a characteristic of network devices like switches and bridges.
* Providing channel testing (D) is not a standard function of a SmartJack; however, SmartJacks enable phone companies to remotely test customer wiring without a site visit2.
* Acting as a concentration point for dial-in and dial-out connections (E) is not a function of a SmartJack; this is typically a function of devices like modems or access servers.

NEW QUESTION # 50
What are two purposes of a USB thumb drive? (Choose two.)

• A. to save router hardware information
• B. to save the system log
• C. to copy IOS images to and from a PC
• D. to increase system memory size
• E. to copy configuration files to and from a PC

Answer: C,E

Explanation:
Section: Service-related Knowledge

NEW QUESTION # 51
Which two commands identify the serial number of a Cisco router? (Choose two.)

• A. show run
• B. show version
• C. show inventory
• D. show environment
• E. show archive

Answer: B,C

Explanation:
Section: Cisco Equipment and Related Hardware

NEW QUESTION # 52
What are two components of a WAN connection? (Choose two.)

• A. CSU/DSU
• B. bridge
• C. router
• D. hub
• E. switch

Answer: A,C

Explanation:
Section: General Networking Knowledge

NEW QUESTION # 53
Which two pieces of information about a neighboring device are displayed when you the CLI command show cdp neighbor? (Choose two.)

• A. IP address
• B. Cisco IOS Software version
• C. uptime
• D. platform
• E. device ID

Answer: D,E

Explanation:
The show cdp neighbor command on Cisco devices displays various pieces of information about directly connected neighboring devices that support Cisco Discovery Protocol (CDP). Two key pieces of information displayed by this command are the platform of the neighboring device, which indicates the hardware type, and the device ID, which is typically the hostname of the device1. The command does not display the uptime or the Cisco IOS Software version; these details can be seen with the show cdp neighbor detail command. The IP address is also part of the detailed information and not displayed in the standard show cdp neighbor output1.

NEW QUESTION # 54
Which command provides detailed information about the components that are installed on a router, such as the model, PID, and serial number?

• A. show router
• B. show inventory
• C. show chassis
• D. show items

Answer: B

NEW QUESTION # 55
Which command displays a list of file systems that are available on Cisco devices?

• A. show directory
• B. show version
• C. show memory
• D. show file system

Answer: D

Explanation:
Section: Cisco IOS Software Operation

NEW QUESTION # 56
Which type of port is used to connect a laptop to an Ethernet port on a Cisco router?

• A. crossover
• B. fiber
• C. rollover
• D. straight-through

Answer: D

Explanation:
Section: Service-related Knowledge

NEW QUESTION # 57
Which type of port is used to connect a laptop to an Ethernet port on a Cisco router?

• A. crossover
• B. fiber
• C. rollover
• D. straight-through

Answer: D

Explanation:
Straight-through cables are the most common type of Ethernet cable. They're used to connect dissimilar devices, such as a laptop to a router or a switch to a router. The internal wiring of the cable connects the transmit pins on one end to the receive pins on the other end, and vice versa.
Crossover cables were historically necessary to connect similar devices (e.g., router to router, or switch to switch). Modern devices often have auto MDI-X capabilities, allowing them to automatically detect and adjust to straight-through or crossover connections as needed.
Rollover cables have a reversed pinout and are primarily used for console access into Cisco routers and switches.
Fiber cables use fiber optic technology for high-speed, long-distance connectivity.
Reference:
Cisco Networking Academy: Introduction to Networks Course

NEW QUESTION # 58
Which method is the fastest way to recover a software version that supports a USB flash port on a Cisco device?

• A. tftp command
• B. copy command with USB memory
• C. copy tftp flash: command
• D. xmodem transfer command

Answer: B

NEW QUESTION # 59
Which layer of the OSI model defines how data is formatted for transmission and how access to the physical media is controlled?

• A. transport
• B. network
• C. data link
• D. presentation

Answer: C

Explanation:
Reference:
https://itcertzone.wordpress.com/2011/01/24/the-seven-layers-of-the-osi-model/#:~:text=Layer% 202%3A%20The%20Data%20Link,reliable%20delivery%20of%20the%20data.

NEW QUESTION # 60
What are two purposes of a USB thumb drive? (Choose two.)

• A. to save router hardware information
• B. to save the system log
• C. to copy IOS images to and from a PC
• D. to increase system memory size
• E. to copy configuration files to and from a PC

Answer: C,E

Explanation:
USB thumb drives (also called flash drives) serve several practical purposes in networking:
File Transfer: They are excellent for transferring Cisco router or switch configuration files between the device and a PC. This allows you to back up configurations, easily restore configurations, or work with them offline.
IOS Image Storage: USB thumb drives are convenient for storing and transferring Cisco IOS images, especially when you need to upgrade or recover network devices.
Why other options are incorrect:
to save the system log: While you might temporarily store log files on a USB drive, routers and switches generally utilize internal memory or a remote syslog server for logging purposes.
to save router hardware information: Hardware inventory information obtained from commands like show inventory is often copied and pasted to text files, which can then be stored on a USB drive. However, the drive itself doesn't directly save or store this hardware information.
to increase system memory: USB drives are not designed to act as additional system memory (RAM) for a router or switch.

NEW QUESTION # 61
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Cisco 100-490 exam is designed to test the knowledge of individuals in supporting Cisco routing and switching network devices. 100-490 exam is aimed at network technicians and engineers who are responsible for the installation, configuration, and maintenance of Cisco network devices. 100-490 exam covers a wide range of topics, including network architecture, routing and switching protocols, and troubleshooting.

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