Free 365 Days Exam Updates 100-490 dumps with test Engine Practice [Q12-Q36]

Free 365 Days Exam Updates 100-490 dumps with test Engine Practice

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NEW QUESTION # 12
Which two commands identify the serial number of a Cisco router? (Choose two.)

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

Answer: A,E

Explanation:
The commands that can be used to identify the serial number of a Cisco router are show inventory and show version. The show inventory command provides detailed information about the hardware inventory, including the serial numbers of the device and its components1. The show version command displays the router's configuration, including the version of the operating system, the last reboot reason, and the hardware serial number, which is listed as the "Processor board ID" in the command output2. These commands are essential for network administrators to document and manage network equipment.

NEW QUESTION # 13
Which device is able to be configured as a TFTP server?

• A. modem
• B. Cisco Content Engine
• C. Cisco router
• D. CSU/DSU

Answer: C

Explanation:
A Cisco router can be configured to act as a TFTP (Trivial File Transfer Protocol) server. TFTP is a simple protocol used to transfer files without the need for authentication. On a Cisco router, the tftp-server command is used to designate the router as a TFTP server, allowing it to manage file transfers to and from connected devices. This is particularly useful for tasks such as updating the router's firmware or backing up configuration files. Neither CSU/DSU, modem, nor Cisco Content Engine are typically used as TFTP servers. Reference := The ability to configure a Cisco router as a TFTP server is documented in Cisco's support forums and knowledge base articles

NEW QUESTION # 14
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. device ID
• C. Cisco IOS Software version
• D. uptime
• E. platform

Answer: B,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 # 15
What are two purposes of a USB thumb drive? (Choose two.)

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

Answer: A,D

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 # 16
Which command displays the configuration register setting?

• A. show flash
• B. show running-config
• C. show config-register
• D. show version

Answer: D

NEW QUESTION # 17
What is the primary method for recovering or upgrading a Cisco network device system image?

• A. USB storage
• B. the xmodem command
• C. the tftpdnld command
• D. FTP

Answer: C

Explanation:
The tftpdnld command in Cisco IOS is specifically designed for recovering or upgrading a system image. Here's how it's the most effective method:
Purpose: The tftpdnld command directly initiates a TFTP download of a new system image and stores it in memory. This is ideal for replacing a corrupt image or upgrading to a newer version of Cisco IOS.
ROMmon: The tftpdnld command can often be used from ROMmon mode, which is essential when the existing image is unusable.
Efficiency: It streamlines the image transfer process specifically using TFTP, which is commonly used for Cisco IOS images.
Why other options are less ideal:
USB storage: While some newer Cisco devices may allow direct loading of an IOS image from USB, this isn't universally supported and often requires specific boot commands.
FTP: FTP (File Transfer Protocol) can be used for file transfers, but it's not as commonly used as TFTP in the context of Cisco IOS image recovery. The tftpdnld command offers a more tailored solution for this purpose.
the xmodem command: XMODEM is a legacy file transfer protocol that is slower and less reliable than TFTP, especially for larger files like Cisco IOS images.

NEW QUESTION # 18
What is the Windows-based program that executes the ping command to test network connectivity?

• A. cmd
• B. ipconfig
• C. Start
• D. Find

Answer: A

Explanation:
The cmd program, also known as the Command Prompt, is the primary command-line interface in Windows. It allows you to execute various commands, including the ping command, to perform network testing and troubleshooting.
Here's how to use ping in the Command Prompt:
Open the Command Prompt: Search for 'cmd' in the Windows Start Menu or use the Run dialog (Windows key + R) and type 'cmd'.
Type the ping command: Enter ping followed by a space and then either the IP address or hostname you want to test. For instance: ping 8.8.8.8 or ping www.google.com.
Press Enter: The Command Prompt will send ping requests and display the results.
Why other options are incorrect:
Find: The Find utility in Windows is used to search for files and folders based on their content or attributes.
Start: The Start Menu in Windows provides access to programs, settings, and power options.
ipconfig: The ipconfig command is used to display network configuration information but doesn't directly execute the ping command.
Reference:
Windows Command Prompt (cmd): https://en.wikipedia.org/wiki/Cmd.exe
Ping command: https://en.wikipedia.org/wiki/Ping_(networking_utility)

NEW QUESTION # 19
An Ethernet interface is up and the line protocol is down. What are two possible causes? (Choose two.)

• A. Keepalives are not being received by the local device.
• B. The Ethernet interface has been manually disabled.
• C. There is a speed or duplex mismatch with the remote device.
• D. There is a Layer 2 mismatch in the encapsulation type.
• E. The Ethernet cable might not be attached properly.

Answer: C,D

NEW QUESTION # 20
Which two Cisco Nexus 3400 Series switches support 400-Gbps Ethernet ports? (Choose two.)

• A. Cisco Nexus 34200YC-SM
• B. Cisco Nexus 3432D-S
• C. Cisco Nexus 34180YC
• D. Cisco Nexus 3464C
• E. Cisco Nexus 3408-S

Answer: B,E

Explanation:
Section: Cisco Equipment and Related Hardware
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus3400s/sw/922/interfaces/ configuration/guide/b_Cisco_Nexus_3400_NX-OS_Interfaces_Configuration_Guide_922/ b_Cisco_Nexus_3400_NX-OS_Interfaces_Configuration_Guide_9z_chapter_010.html

NEW QUESTION # 21
Which type of port is used to connect a laptop to an Ethernet port on a Cisco router?

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

Answer: B

Explanation:
Section: Service-related Knowledge

NEW QUESTION # 22
Which two Cisco Nexus 3400 Series switches support 400-Gbps Ethernet ports? (Choose two.)

• A. Cisco Nexus 34200YC-SM
• B. Cisco Nexus 3432D-S
• C. Cisco Nexus 34180YC
• D. Cisco Nexus 3464C
• E. Cisco Nexus 3408-S

Answer: B,E

Explanation:
The Cisco Nexus 3432D-S and Cisco Nexus 3408-S are part of the Cisco Nexus 3400 Series switches that support 400-Gbps Ethernet ports. The Cisco Nexus 3432D-S is designed with 32 ports of 400G, providing high-density and high-throughput capabilities1. The Cisco Nexus 3408-S offers flexibility with 100G or 400G Line-Card Expansion Modules (LEMs), allowing for configurations with 32 ports of 400G2. These switches are engineered for data centers requiring high performance, low latency, and power efficiency, with the Cisco Nexus 3432D-S offering industry-leading performance-per-watt power efficiency at low latency1.

NEW QUESTION # 23
Which command displays information about the carrier network, cell site, and available service?

• A. show cellular unit hardware
• B. show cellular unit profile
• C. show cellular unit radio
• D. show cellular unit network

Answer: D

Explanation:
Section: Cisco IOS Software Operation
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/solutions/Verticals/EE/IG-WAN/EE-WAN-IG/EE-WAN- IGch2.html

NEW QUESTION # 24
From the enable mode, which command loads the configuration during the password recovery process on a Cisco router?

• A. copy running-config startup-config
• B. load_helper
• C. configure terminal
• D. copy startup-config running-config

Answer: D

NEW QUESTION # 25
Which two ports on a laptop are used to gain console access to a Cisco switch? (Choose two.)

• A. RJ-11
• B. USB
• C. RJ-45 Ethernet
• D. DVI
• E. DB-9

Answer: B,E

Explanation:
To gain console access to a Cisco switch, two types of ports on a laptop can be used: DB-9 and USB. The DB-9 port is a traditional serial port that is often used with a DB-9 to RJ-45 console cable to connect to the switch's console port1. However, as modern laptops may not have a DB-9 port, a USB to Serial adapter can be used instead, which creates a virtual COM port that can be used to connect to the switch1. The USB port can also be used directly if the switch has a USB console port, which is common on newer Cisco devices. These ports allow for direct physical connection to the switch for configuration and management purposes. Reference := Access the CLI via PuTTY using a Console Connection on 300 and 500 Series Managed Switches - Cisco, How to connect Switch with console port - Cisco Learning Network

NEW QUESTION # 26
Which type of Cisco console cable is used to connect a laptop to the console port on a Cisco router?

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

Answer: B

Explanation:
Rollover cables are specifically designed for connecting to the console ports on Cisco routers and switches. Here's why they are the right choice:
Pinout: Rollover cables have a reversed pinout compared to standard Ethernet cables. This matches the console port's wiring, allowing for configuration access.
Appearance: Rollover cables are often light blue in color to help distinguish them from standard Ethernet cables.
USB Adapter: Many modern laptops may not have a direct serial port. In this case, a rollover cable with a USB-to-serial adapter is used.
Why other options are incorrect:
Straight-through: Used for connecting unlike devices (e.g., switch to computer). They won't have the correct wiring for console connections.
Fiber: Used for high-speed, long-distance networks. Console ports use a serial-based connection, not fiber optics.
Crossover: Used to connect similar devices (e.g., switch to switch). The pinout is not the same as what a console port requires.

NEW QUESTION # 27
What is the line speed of a DS0 in North America?

• A. 64 kbps
• B. 32 kbps
• C. 16 kbps
• D. 128 kbps

Answer: A

Explanation:
The line speed of a DS0 in North America is:
C . 64 kbps
DS0, or Digital Signal 0, is a digital signaling standard in telecommunications characterized by its transmission rate of 64 Kbps. It is the basic unit of data in digital networks and is used to transmit a single voice channel or data

NEW QUESTION # 28

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

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

Answer: B,C

Explanation:
Section: Cisco Equipment and Related Hardware
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/routers/access/2900/hardware/installation/guide/ Hardware_Installation_Guide/Install_Connect.html

NEW QUESTION # 29
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?

• A. modem
• B. Cisco Content Engine
• C. Cisco router
• D. CSU/DSU

Answer: C

Explanation:
Section: Service-related Knowledge

NEW QUESTION # 30
Which two commands are valid for copying a saved configuration to RAM? (Choose two.)

• A. copy running-config startup-config
• B. copy running-config tftp
• C. copy tftp startup-config
• D. copy startup-config running-config
• E. copy tftp running-config

Answer: D,E

NEW QUESTION # 31
Which type of port is used to connect a laptop to an Ethernet port on a Cisco router?

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

Answer: B

NEW QUESTION # 32
Which type of memory stores the decompressed form of Cisco IOS Software and the running configuration?

• A. NVRAM
• B. DRAM
• C. flash
• D. ROM

Answer: B

Explanation:
Section: Cisco IOS Software Operation

NEW QUESTION # 33
Which two commands set the configuration register value? (Choose two.)

• A. router(config)#confreg 0x2102
• B. rommon>config-register 0x2102
• C. router(config)#config-register 0x2102
• D. router(config)#configuration-register 0x2102
• E. rommon>confreg 0x2102

Answer: C,E

Explanation:
The configuration register on Cisco routers and switches controls specific bootup behaviors. Here's how to modify it:
1. In ROMmon Mode:
rommon>confreg 0x2102 : This command is used when the device is in ROMmon mode (a basic operating system loaded when the full Cisco IOS cannot be found). ROMmon offers limited functionality and is often used for troubleshooting or password recovery.
2. In Global Configuration Mode:
router(config)#config-register 0x2102 : This command is used from within the Cisco IOS itself when you have normal access to the router. You would enter privileged EXEC mode and then global configuration mode to use it.
Importance of Configuration Register Settings:
The most common reasons to modify the configuration register are:
Password Recovery: Setting the configuration register to 0x2142 tells the router to ignore the startup configuration (stored in NVRAM), allowing you to bypass password protection.
Changing Boot Behavior: Settings can control the boot sequence, such as specifying where the Cisco IOS image should be loaded from.
Reference:
Cisco Configuration Register: https://www.cisco.com/c/en/us/support/docs/routers/10000-series-routers/50421-config-register-use.html Understanding the Configuration Register (Cisco): https://networklessons.com/cisco/ccna-routing-switching-icnd1-100-105/configuration-register-cisco-ios

NEW QUESTION # 34
Which type of memory is erased on a Cisco device when rebooted?

• A. NVRAM
• B. DRAM
• C. PVDM
• D. flash

Answer: B

Explanation:
DRAM, or Dynamic Random-Access Memory, is the type of memory that is erased when a Cisco device is rebooted. DRAM is used to store the running configuration and routing tables of the device. Since DRAM is volatile memory, its contents are lost when the device is powered down or restarted. This is in contrast to non-volatile memory types like flash and NVRAM, which retain their contents even after a reboot1. Reference := Types of memory on a Cisco device - Study-CCNA

NEW QUESTION # 35
Which two Cisco Nexus 3400 Series switches support 400-Gbps Ethernet ports? (Choose two.)

• A. Cisco Nexus 34200YC-SM
• B. Cisco Nexus 3432D-S
• C. Cisco Nexus 34180YC
• D. Cisco Nexus 3464C
• E. Cisco Nexus 3408-S

Answer: B,E

Explanation:
The Cisco Nexus 3432D-S and Cisco Nexus 3408-S are part of the Cisco Nexus 3400 Series switches that support 400-Gbps Ethernet ports. The Cisco Nexus 3432D-S is designed with 32 ports of 400G, providing high-density and high-throughput capabilities1. The Cisco Nexus 3408-S offers flexibility with 100G or 400G Line-Card Expansion Modules (LEMs), allowing for configurations with 32 ports of 400G2. These switches are engineered for data centers requiring high performance, low latency, and power efficiency, with the Cisco Nexus 3432D-S offering industry-leading performance-per-watt power efficiency at low latency1.

NEW QUESTION # 36
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