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Cisco 800-150 시험요강:

주제	소개
주제 1	Common Service Tasks and Tools: This section of the exam measures the skills of a Technical Support Engineer and focuses on tasks commonly needed to manage Cisco devices. It explains how devices boot up, introduces common Cisco IOS commands, and identifies tools for file management. It shows how to confirm physical connections, remotely access devices, and connect to the console port. It also covers how to capture the status of a device, recover passwords, and replace devices by using proper tools. Students are also taught how to find serial numbers on Cisco equipment to assist with support and maintenance activities.
주제 2	Cisco Hardware Replacement: This section of the exam measures the skills of a Technical Support Engineer and teaches how to safely and correctly replace Cisco hardware. It explains safety procedures such as creating safe work zones and handling electrostatic discharge. Students learn the step-by-step processes to replace a wide range of Cisco devices, from switches and routers to firewalls, UCS servers, and collaboration endpoints. It also covers configuring Cisco NX-OS software, including understanding operating modes, boot procedures, and password recovery, and introduces Cisco collaboration endpoint solutions like IP phones and video systems.
주제 3	Networking Foundations: This section of the exam measures the skills of a Network Engineer and covers the basic building blocks of computer networking. It explains different types of networks like local area networks and wireless networks, and introduces lightweight wireless LANs. It describes the layers of communication models like the OSI model and TCP IP stack, and explains how data moves across networks. It also discusses the physical cabling used in networks, such as Ethernet and fiber optics. Students will learn about network switching, IP addressing, subnetting, and routing at Layer 3. The section also introduces Cisco’s campus network devices, data center switches, UCS servers, and collaboration devices, describing their roles and functions in the network.
주제 4	Cisco Software: This section of the exam measures the skills of a Network Engineer and discusses Cisco’s software systems and licensing. It explains the difference between IOS install and bundle modes and gives an overview of different licensing models. Students learn how to manage Cisco software images, including backing up, transferring, and installing images via FTP, TFTP, or USB. It also covers how to handle configuration files to keep devices running properly and ensure smooth upgrades or replacements.

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최신 Cisco Certified Field Technician (CCT) 800-150 무료샘플문제 (Q25-Q30):

질문 # 25
Which command provides a concise look at important switch port characteristics, such as port ID, VLAN, duplex, speed, and media type?

A. show cdp neighbors
B. show interface status
C. show controllers
D. show ipinterface brief

정답：B

설명：
Theshow interface statuscommand offers a succinct overview of switch port characteristics, including:
* Port ID
* VLAN assignment
* Duplex mode
* Speed
* Media type
This command is particularly useful for quickly assessing theoperational status and configuration of switch ports, aiding in troubleshooting and verification tasks.
In contrast:
* show cdp neighborsdisplays information about directly connected Cisco devices.
* show controllersprovides low-level hardware information.
* show ip interface briefoffers a summary of IP-related interface information.
Reference:Supporting Cisco Devices for Field Technicians (FLDTEC) - Device Configuration and Verification

질문 # 26
What must be considered when installing a new fan module in a fixed-configuration Cisco Nexus switch?

A. The size of the fan module must match the power supply.
B. The fan module must be from the same manufacturing batch as the others.
C. Fan modules can be installed only when the switch is powered off
D. The airflow direction must be consistent with other installed modules.

정답：D

설명：
When installing a fan module in a Cisco Nexus fixed-configuration switch, it's crucial to ensure that the airflowdirection of the new fan matches the existing airflow configuration. Mismatched airflow directions can lead to inefficient cooling or even overheating of components, potentially affecting the performance or lifespan of the switch.
Cisco offers fan modules infront-to-backorback-to-frontairflow variants, and consistency is required for proper thermal management. These modules are also typically hot-swappable, meaning powering down the switch is not necessary.
Reference:Supporting Cisco Devices for Field Technicians (FLDTEC) - Maintenance and RMA Procedures

질문 # 27

Refer to the exhibit. Which component is highlighted on the Cisco I/O module image?

A. captive screw
B. fixed port
C. fan module LED
D. chassis connections LED

정답：D

설명：
The highlighted component on the Cisco I/O module is the chassisconnections LED, which indicates the status of connectivity between the I/O module and the chassis.
In the exhibit, the orange arrow points to asmall rectangular LED indicatorlocated to the left side of the I/O module (Cisco UCS-IOM-2304). This specific LED isnot aligned with the ports, fans, or screws, which helps identify it correctly.
Chassis connections LED (B)is responsible for indicating thestatus of uplink/downlink communication between the I/O module and the chassis.
* Greenusually indicates a healthy link.
* Amberoroffmay indicate a problem or no connection.
Why the other answers are incorrect:
* A. Captive screw# These are at the far corners, not where the arrow points.
* C. Fan module LED# This IOM doesn't have user-visible fan LEDs atthe front face.
* D. Fixed port# These are the large rectangular SFP ports clearly visible in the middle, not near the arrow.
This identification is important whentroubleshooting chassis-to-IOM connectivityor verifyingmodule status LEDsduring field maintenance.

질문 # 28
How many bits are borrowed from the default host portion of the address to create subnets in a Class B network with a subnet mask 255.255.255.0?

A. 3 bits
B. 5 bits
C. 8 bits
D. 3 bits

정답：C

설명：
In a Class B network, the default subnet mask is 255.255.0.0, which allocates:
* 16 bits for the network portion
* 16 bits for the host portion
When the subnet mask is changed to255.255.255.0, it becomes:
* 24 bits for the network portion
* 8 bits for the host portion
This indicates that8 bitshave been borrowed from the host portion to create additional subnets. Borrowing bits allows for the division of the original network into smaller sub-networks, enhancing organization and security within the network.
Reference:Supporting Cisco Devices for Field Technicians (FLDTEC) - Cisco IOS Software Basics

질문 # 29
Which layer of the OSI model provides error detection and defines how access to the media is controlled?

A. Network layer
B. Physical layer
C. Data link layer
D. Presentation layer

정답：C

설명：
The Data Link Layer (Layer 2) of the OSI model is responsible for node-to-node data transfer and plays a crucial role in error detection and media access control. It ensures that data frames are transmitted to the correct device on a local network segment.
This layer is divided into two sublayers:
* Logical Link Control (LLC):Manages frame synchronization, flow control, and error checking.
* Media Access Control (MAC):Controls how devices on the network gain access to the medium and permission to transmit data.
Together, these sublayers ensure reliable data transmission by detecting and possibly correcting errors that may occur in the Physical Layer. They also manage how devices share the transmission medium, preventing collisions and ensuring orderly communication.
Reference:Supporting Cisco Devices for Field Technicians (FLDTEC) - Cisco IOS Software Basics

질문 # 30
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