100-490

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The dumps for 100-490 exam was last updated on Jul 15,2025 .

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Question#1

What are two descriptions for FTP? (Choose two.)

A. FTP loads Cisco IOS Software to a router in ROMMON mode.

B. The copy running-config ftp: command copies a configuration file from an FTP server to the running configuration.

C. A router is able to act as an FTP server.

D. FTP uses UDP as its transport protocol.

E. A Cisco router must be configured with the appropriate username and password because FTP usually requires authentication.

Explanation:

Question#2

Refer to the exhibit.
What are two identifications for the hardware components? (Choose two.)

A. 1 is a USB Type A 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. 3 is a USB Type A port.

E. 3 is a USB 5-pin mini USB Type B port.

Explanation:
• The label "1" points to a rectangular port on the laptop. This is consistent with the shape of a USB Type A port.
• The cable labeled "2" has an RJ-45 connector on one end and a USB Type A connector on the other end.
Incorrect Answers:
• C. 2 is a USB 5-pin mini USB Type B to USB Type A console cable: The connector on the cable labeled "2" is not a mini USB Type B connector. It is a standard RJ-45 connector.
• D. 3 is a USB Type A port: The label "3" points to a port on the server that is not visible in the image. Therefore, we cannot identify the type of port it is.
• E. 3 is a USB 5-pin mini USB Type B port: Same as D, we cannot identify the type of port labeled "3" due to lack of visibility in the image.

Question#3

Which two IPv4 addresses are assigned to host computers? (Choose two.)

A. 292.10.3.4

B. 10.1.1.20

C. 255.255.255.255

D. 0.0.0.0

E. 192.168.10.15

Explanation:
In the context of IPv4 addresses, a host address is an identifier for a specific device on a network. The addresses 10.1.1.20 and 192.168.10.15 are both within ranges typically reserved for private networks, making them suitable for assignment to host computers within a local network. Address 292.10.3.4 is not a valid IPv4 address because the first octet is beyond the maximum value of 255. Address 255.255.255.255 is reserved for broadcast messages to all hosts on the local network, and 0.0.0.0 is used to denote an unspecified address, often indicating the absence of an IP address123.
Reference: = IP address, Network address, and Host address Explained, IP address - Wikipedia, Understanding IP Addresses: How IP Addressing Works | ENP

Question#4

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

A. Cisco Nexus 34180YC

B. Cisco Nexus 34200YC-SM

C. Cisco Nexus 3432D-S

D. Cisco Nexus 3408-S

E. Cisco Nexus 3464C

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.
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

Question#5

Which two features are associated with single-mode fiber-optic cable? (Choose two.)

A. consists of a single strand of glass fiber

B. has higher attenuation that multimode fiber

C. carries a higher bandwidth that multimode fiber

D. costs less than multimode fiber

E. operates over less distance than multimode fiber

Explanation:
The features associated with single-mode fiber-optic cable include:
Consists of a single strand of glass fiber: Single-mode fiber uses a single core (strand) of glass fiber to transmit light signals. This core is thinner than that of multimode fiber, allowing for greater transmission distances.
Carries a higher bandwidth than multimode fiber: Single-mode fiber can carry higher data rates over longer distances compared to multimode fiber. It is commonly used in long-haul communication links and high-speed networks.
Reference: Single-mode vs. Multimode Fiber
Fiber Optic Cable Types

Exam Code: 100-490 Q & A: 76 Q&As Updated: Jul 15,2025

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Exam Code: 100-490
Q & A: 76 Q&As
Updated: Jul 15,2025

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